E560 SD Release 3

RTU560Remote Terminal Unit

System Description

Contents: This document describes the features of the Remote TerminalUnit RTU560 Release 3 concerning the handling of processsignal information and communication, parameterization anddiagnostics.

Document identity: 1KGT 150 447 V001 1

RTU560 System Description Revision

ABB Utility Automation GmbH 1KGT 150 447 V001 1 iii

Revision

Document identity: 1KGT 150 447 V001 1

Revision: 0 Date: 05/2000

Revision: 1 Date: 02/2001Extension and revision

We reserve all rights in this document and the information contained therein.

Reproduction, use or disclosure to third parties without express authority is strictlyforbidden.Copyright © 2001 ABB Utility Automation GmbH Mannheim/Germany

Revision RTU560 System Description

1KGT 150 447 V001 1 ABB Utility Automation GmbHiv

RTU560 System Description Contents

ABB Utility Automation GmbH 1KGT 150 447 V001 1 v

Contents

ABBREVIATIONS ......................................................................................1

1 APPLICATION AND FEATURES .......................................................1-11.1 Application ........................................................................................................ 1-11.2 Features............................................................................................................ 1-3

2 SYSTEM OVERVIEW .........................................................................2-12.1 System Concept................................................................................................ 2-12.2 Software structure............................................................................................. 2-22.3 I/O Bus system ................................................................................................. 2-32.4 RTU560 Configuration Types ........................................................................... 2-52.5 Redundancy...................................................................................................... 2-6

2.5.1 Redundant power supply in communication subracks. ..................... 2-62.5.2 Redundant CMUs.............................................................................. 2-6

3 COMMUNICATION .............................................................................3-13.1 General ............................................................................................................. 3-13.2 Host communication interfaces ........................................................................ 3-33.3 Sub-Device Communication Interface .............................................................. 3-5

4 RTUTIL NT..........................................................................................4-14.1 Basics ............................................................................................................... 4-14.2 System requirements........................................................................................ 4-14.3 RTUtil NT Structure .......................................................................................... 4-24.4 General Data Structuring and View .................................................................. 4-34.5 General Tree Structure ..................................................................................... 4-4

5 BOARDS AND MECHANICS..............................................................5-15.1 General Boards of the RTU560 ........................................................................ 5-1

5.1.1 Communication and Processing Unit 560SLI01/02........................... 5-15.1.2 Communication and Processing Unit 560ETH01/02......................... 5-35.1.3 Bus Connection Unit 560BCU01 ....................................................... 5-55.1.4 Bus Connection Unit 560BCU02 ....................................................... 5-65.1.5 Bus Connection Unit 560BCU03 ....................................................... 5-75.1.6 Power Supply Unit 560PSU01........................................................... 5-85.1.7 Power Supply Unit 23NG24............................................................... 5-95.1.8 Real Time Clock 560RTC01 ........................................................... 5-105.1.9 Real Time Clock 560RTC02 ........................................................... 5-11

Contents RTU560 System Description

1KGT 150 447 V001 1 ABB Utility Automation GmbHvi

5.1.10 Modem 23WT21.............................................................................. 5-125.1.11 Modem 23WT22.............................................................................. 5-125.1.12 Fibre Optic Coupler 23OK22 ........................................................... 5-135.1.13 Mains Adapter 23VG23 ................................................................... 5-155.1.14 Mains Adapter 23VG24 ................................................................... 5-16

5.2 Input / Output Boards ...................................................................................... 5-175.2.1 Time Management on the I/O Boards ............................................. 5-17Board Design .................................................................................................. 5-175.2.3 Software Organization ..................................................................... 5-185.2.4 Analog Output Board 23AA20 ......................................................... 5-185.2.5 Analog Input Board 23AE21 ............................................................ 5-205.2.6 Binary Output Board 23BA20 .......................................................... 5-215.2.7 Binary Output Board 23BA22 .......................................................... 5-235.2.8 Command Output 23BA30 .............................................................. 5-255.2.9 Binary Input Board 23BE21 ............................................................. 5-265.2.10 Binary Input 23BE30........................................................................ 5-27

5.3 Mechanical Construction................................................................................. 5-285.3.1 Assembly variants............................................................................ 5-295.3.2 Communication subrack 560CSR01 ............................................... 5-305.3.3 Extension Mounting Panel 23TP21 ................................................. 5-315.3.4 Extension Subrack 23ET23 ............................................................. 5-325.3.5 Cabinet and Housing Types ............................................................ 5-33

6 TELECONTROL FUNCTIONS........................................................... 6-16.1 General ............................................................................................................. 6-16.2 Monitoring Direction .......................................................................................... 6-3

6.2.1 Indication Processing......................................................................... 6-36.2.2 Functions ........................................................................................... 6-4

6.3 Analog Measured Value Processing ................................................................. 6-56.3.1 Analog Measured Value Types.......................................................... 6-56.3.2 Functions ........................................................................................... 6-6

6.4 Digital Measured Value Processing .................................................................. 6-76.4.1 Functions ........................................................................................... 6-9

6.5 Integrated Total Processing ........................................................................... 6-106.5.1 Integrated Total Value Types.......................................................... 6-106.5.2 Functions ......................................................................................... 6-11

6.6 Bitstring Input Value Processing ..................................................................... 6-126.6.1 Bitstring Value Presentation ............................................................ 6-12

6.7 Command Direction ........................................................................................ 6-136.7.1 Object Commands........................................................................... 6-146.7.2 Single Object Command Output...................................................... 6-156.7.3 Double Object Command Output .................................................... 6-16

6.8 Regulation Step Command Output ................................................................. 6-206.8.1 Retrigger of Regulation Commands ................................................ 6-206.8.2 Setpoint Messages .......................................................................... 6-21

6.9 Bitstring Output ............................................................................................... 6-226.10 RTU560 Time Synchronization ....................................................................... 6-23

RTU560 System Description Contents

ABB Utility Automation GmbH 1KGT 150 447 V001 1 vii

6.10.1 Time Synchronization Principle ....................................................... 6-236.10.2 Time Synchronization via the Telecontrol Line................................ 6-256.10.3 Time Synchronization by Means of DCF 77 / GPS Receiver .......... 6-256.10.4 Time Synchronization by Means of an External Minute Pulse ........ 6-25

6.11 PLC Development System.............................................................................. 6-266.11.1 Components of the Development System....................................... 6-266.11.2 MULTIPROG wt .............................................................................. 6-276.11.3 PLC Performance Data ................................................................... 6-28

7 STATUS AND DIAGNOSTIC INFORMATION....................................7-17.1 Status and Error Report to NCC ....................................................................... 7-17.2 Web-Server Diagnosis...................................................................................... 7-1

7.2.1 System Diagnosis.............................................................................. 7-17.2.2 Status Information ............................................................................. 7-2

7.3 LEDs, Alarm and Warning ................................................................................ 7-37.3.1 LED Signalling ................................................................................... 7-37.3.2 RTU560 Alarm and Warning Relays ................................................. 7-37.3.3 LED Indications ................................................................................. 7-3

8 TECHNICAL DATA.............................................................................8-1

RTU560 System Description Abbreviations

ABB Utility Automation GmbH 1KGT 150 447 V001 1 1

AbbreviationsAMI Analog Measured value Input

ASO Analog Setpoint command Output

BCU Bus Connection Unit

BSI Bit String Input (8, 16 bit)

CMU Communication and Data Processing Unit

CS Control System

CSC Command Supervision Channel

CS-Command Clock Synch Command

DCO Double Command Output

DMI Digital Measured value Input (8, 16 bit)

DPI Double Point Input

DSO Digital Setpoint command Output (8, 16 bit)

EPI Event of Protection equipment Input (1bit)

GCD General Configuration Data

HCI Host Communication Interface

IED Intelligent Electronic Device

IOC I/O Controller (Controller on I/O Board)

IOD Input Output Data

IOM I/O Bus Master (Function of SLC)

ITI Integrated Totals Input

MFI Analog Measured value Floating Input

MPU Main Processing Unit

NCC Network Control Center

PB Peripheral Bus

PBP Peripheral Bus Processor

PDP Process Data Processing

PLC Programmable Logic Control

PPP Point to Point Protocol

Abbreviations RTU560 Function Description

2 1KGT 150 447 V001 1 ABB Utility Automation GmbH

PSU Power Supply Unit

RCO Regulation step Command Output

RTC Real Time Clock

SBO Select before Operate

SCADA Supervision, Control and Data Acquisition

SCI Sub-Device Communication Interface

SCO Single Command Output

SEV System Events

SLC Serial Line Controller

SOC Strobe Output Channel

SPI Single Point Input

STI Step position Input (8 bit)

TSI Time Synch Input

TSO Time Synch Output

ABB Utility Automation GmbH 1KGT 150 447 V001 1 1-1

1 Application and Features

1.1 Application

The task to monitor and control the transportation network for energy to reach aneconomical operation control requests an ongoing penetration of the network down to thelowest levels. The increasing requirements to the availability of energy and theirdistribution and transportation also increases the demands on the control systems.Improved and new communication possibilities with a higher transmission bandwidth andnew transmission media allows the telecontrol technology to realize these tasks.

The RTU560 is required to be configurable to nearly all demands made on remotestations in networks for electricity, gas, oil, water or district heating.

Figure 1-1: Typical configuration of a telecontrol system

IEC 60870-5-104WAN

Telecontrol Center(s)

Sub-RTUMarshalling Rack

Protection andControl Units

Station Control

IEC 60870-5-104IEC 60870-5-101

DNP 3.0

IEC 60870-5-101DNP 3.0


SPABusModbus

IEC 60870-5-104IEC 60870-5-101

DNP 3.0

RTU 560

Process IED

IEC 60870-5-103 IEC 60870-5-101

DNP 3.0

IED

IED

IED

Application and Features RTU560 System Description

1-2 1KGT 150 447 V001 1 ABB Utility Automation GmbH

The RTU560 is using one set of communication units and I/O boards for all kinds ofapplications - starting with a configuration with some I/O boards and one communicationunit for a small pump station or ring main unit station over medium size stations fordistribution up to large stations on transmission level with all kinds of extensions.

Engineering the process signals of the RTU560 is done by means of only one tool'RTUtil NT' for all sizes of stations. In the same way RTUtil NT also supports processsignal routing from a small station on the lowest level up to the network control center(NCC) level, especially when the signals are routed via other RTU560 stations, operatingas routers. This includes the conversion from a telecontrol protocol 'A' to anothertelecontrol protocol 'B' used on the next level. For example from DNP 3.0 to IEC 870-5-104. At the end RTUtil NT generates all the files requested to run the RTU560 units. Thefiles can be downloaded into the stations via the communication line or via INTRANETusing WEB browser technology. In the first case the telecontrol protocol used mustsupport file transfer (e.g. IEC 870-5-101 / 104).

RTU560 System Description Application and Features


1.2 Features

The telecontrol system RTU560 also supports the extended transmission possibilities.Beside the acquisition and processing of the directly connected station process signals,the telecontrol system RTU560 is designed for the link of serial communication routeswithin the station as well to the higher control level. This can be another RTU560 routerstation or a network control center. Within the station it is the connection of other existingadditional control, protection or monitoring devices (Intelligent Electronic Devices = IED)via serial interfaces.

The RTU560 concept allows the economical adaptation to the requested, different seriallinks by cascading the Communication and Processing Units (main CPUs) according tothe number of needed interfaces.

Essential features of the telecontrol system RTU560:

• High functional scope for telecontrol applications

• Flexible configuration for small stations with few process data points up to largeprocess stations with several thousand process data points

• Large expandability to connect serial communication interfaces in all directions

• Redundancy features for the communication subrack with central control boardsand power supply

• Compact design

• Small number of different hardware units

• High availability

• Easy engineering of the single process station as well as for stations in a telecontrolnetwork for the engineering and signal routing up to the network control level.

• Extended diagnostic features by WEB browser technology

• PLC Functions



Process data signals

Process data acquisition is done by means of the I/O board family already used andproven in the RTU200 and RTU232. In the RTU560 the total number of usable I/O boardsis increased by running up to four peripheral bus segments in parallel. Two peripheral bussegments will be supported by one communication unit. This allows an overall directly andindirectly connected I/O capacity for the RTU560 of:

• max. 4 peripheral bus segments

• max. 6 I/O subracks per peripheral bus segment

• max. 24 I/O subracks per RTU560

• max. 24 x 19 = 456 different I/O boards

• overall capacity of 5000 direct and indirect connected process signal data pointsper RTU560

Within that range any number of different I/O signal types is possible. Their number maybe limited by the addressing capacity of the telecontrol protocol used.

This total number of 5000 I/O points also includes the process signals which are definedby connected IEDs and / or connected sub-RTUs. The RTU560 used as a router also hasthe task to support each directly and indirectly connected process signal to the networkcontrol level with the status and value. Therefore all signals shall be processed in onecommon process signal database.



Process data signal types and functions

Irrespective of the signal source the RTU560 handles the following process signal datatypes:

• Binary input signals Single indications Double indications Digital measured values; word length = 8 bit Digital measured values; word length = 16 bit Incremental totals in form of pulse counters Bitstring input values

• Binary output signals Object (switching) commands 1-pole Object commands 1.5-pole; including (1-out-of-n) check Object commands 2-pole; including (1-out-of-n) check Regulation step commands 1- or 2-pole Bitstring output values

• Analog input signals

• Analog output signals Setpoint commands; including strobe

The RTU560 has the following main processing features:

• Time tagged events with 1 ms time resolution

• Monitoring of double point information

• Sequence of event queue

• Acquisition of pulse counters for integrated totals

• Archive for integrated totals

• Command handling with or without (1 out of n) check

• Select before operate sequence

• Time synchronization with GPS or DCF 77 time standard



Support of communication links

The key advantage of the RTU560 concept is the modular design of the serialcommunication links. It starts with one communication unit which includes already thecapability for up to four serial links and ends up in a configuration with 2 communicationsubracks.

The RTU560 is designed for the following communication capabilities:

• max. 2 communication subracks

• each subrack with max. 8 communication units

• max. 8 host interfaces to NCC etc.

• max. 60 serial interfaces for / to: max. 4 peripheral bus segments sub-RTUs all kinds of IEDs


2 System Overview

2.1 System Concept

The RTU560 is structured into two main components:

• The central communication component in the communication subrack or in one ofthe I/O subracks

• The I/O signal component in the I/O subracks

The communication subrack contains – in addition to the power supplies – the configuredmain CPU boards and optional a real-time clock board.

The I/O subracks and the I/O boards have been taken over from the proven RTU232system family. The I/O subracks are linked via the proven peripheral bus to the main CPUboards, which run the telecontrol application software for the directly connected I/Osignals. The I/O signal concept is based on I/O boards with microcontrollers in order topreprocess the signals directly on the board.

Figure 2-1: Communication subrack of the RTU560A

System Overview RTU560 System Description


The software and hardware concepts are based on modularity. The software applicationtasks can be organized in such a way as to be distributed over different central CPUboards. This is possible due to an internal communication concept that keeps all CPUboards informed about the contents of the process data interface. A copy of the systemdatabase is available for each central CPU board. The internal communication systemensures that all process data are consistent. The different CPU boards run thecommunication tasks for the connected serial links. This procedure defines which andhow many different communication links are running on one CPU board. Systemperformance depends on the configuration of the CPU boards which allows a costoptimized or performance optimized configurations of the communication subrack.

2.2 Software structure

The high processing performance of the RTU560 Remote Terminal Unit is accomplishedby the efficient distribution of the tasks to the communication and processing units (CMU)and the microcontrollers on the I/O boards.

Each of the input/output boards has its own input/output microcontroller (IOC) whichsupports the basic input/output functions of the board.

The CMUs have various tasks:

• Communication with the network control center(s)

• Communication with subordinated devices

• Updating of the data base for the process signals, handling of the SCADA functionswhich are not performed by the I/O-boards

The different processors of a CMU (MPU and SLC) can work independently of each otherand are decoupled from each other via shared memories. Different CMUs can handledifferent tasks independently and communicate with each other via the internal systembus. By this means optimal execution of the individual tasks is accomplished.

The program system of the RTU560 remote terminal unit is of modular design andconsists of the following program types:

• Microcontroller programs

• Standard programs

• Application programs

The microcontroller programs of the boards are optimized to the components and for thedefined functions. They are an integral part of the boards.

The standard programs written in C programming language cover the programs for alltelecontrol functions, for system monitoring, time management and for the handling of theprocess data base.

The 32 bit operating system used in RTU560 is VxWorks® (Wind River Systems).

The PLC programs for the tasks of station automation functions are cyclically executed bythe optionally installed PLC software.



Figure 2-2: Software structure of RTU560

2.3 I/O Bus system

The input/output boards are connected to one or two main CMUs by means of a bussystem which consists of one to four serial I/O bus segments.

The serial I/O buses connect the extension subracks to one ore more of the main CMUs.The transmission speed on the serial I/O buses is 19200 Bit/s. The serial RS-485 busallows a maximum length of approx. 1000m in consideration of the electricalspecifications and noise fields like equipotential bonding, EMC conditions etc. as they aredescribed in the RS-485 standard.

In configurations with decentralized extension subracks it will be advantageous to usefibre optic cables for the serial system bus to reduce inductive and capacitiveinterferences. As interface the fiber optic coupler board 23OK22 is used on both ends ofthe cable. Dependent on the type of the fiber optic cable distances of up to 2600 meterscan be realized.

VxWorks ® Real Time Operating System

HardwareDevice Drivers

Networking PC-CardDrivers

Local I/Oand

Process DataProcessing

Communi-cation

Protocols

FileSystems

FTPServer

WebServer

System Control

andDiagnosis

PLCFunction

Operating System

Standard Software Packages

ApplicationSoftware



Figure 2-3: RTU560 Hardware concept

Network Control Centers

RTU560 System Bus

CMU CMU CMUCMU

CMU CMUCMUCMU

IED

IED Sub-RTU

Sub-RTU

I/O Boards

I/O Boards

I/O Boards

I/O Boards

IED

IED



2.4 RTU560 Configuration Types

Depending on where the RTU560 is used, it is not always necessary to support multiplecommunication links. The RTU560 concept allows the configuration of two types of RTU.

• The Standard RTU560A

• The Compact RTU560C

The RTU560C, which does not use the central communication subrack, allows amaximum of two main CMU boards to be plugged into a standard I/O subrack. Thestandard version is one main CMU board with one or two links to the NCC(s) or one NCClink and one link for IEDs. The residual part of the I/O subrack can be used for I/O boards.The Compact RTU560 also supports the full volume of I/O boards distributed over the I/Obus segments.

If more communication lines are required, the RTU560A must be used. RTU560A built upby one or two central communication subracks with their full range of flexibility andconfiguration capabilities and I/O subracks for the I/O boards.

Figure 2-4: Main rack of RTU560C

123

4O

FF

23NG24

5 V

24 V

ON

OFF

UE +UE -PE

560SLI01

1

3

A

B

Tx Rx CE

MMI

A

B

1

2

23BA20

STPST

CO

23BA20

STPST

CO

23BA20

STPST

CO

23BE21

12

910

ST

34

1112

56

1314

78

1516

23BE21

12

910

ST

34

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56

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23BE21

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23BE21

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23BE21

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560SLI01

1

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B

Tx Rx CE

MMI

A

B

1

2



2.5 Redundancy

The availability of a station is a top priority. RTU560 supports this demand by aredundancy concept with a different steps:

2.5.1 Redundant power supply in communication subracks.

It is possible to place two redundant power supplies in the central communicationsubrack. If one power supply fails, the second one takes over the complete supply of thecommunication subrack.

2.5.2 Redundant CMUs

It is possible to add redundant CMUs into an RTU560 communication subrack. It ispossible to double all CMUs or only some CMUs. The redundant RTU560 is split into anactive working part and a standby part. If the standby part detects a failure (internaloperation error missing of a CMU board) of the active part it deactivates the active systemand takes over the task of the active system. The now active system starts withinitialization and update of the complete process information.

Figure 2-5: Configuration example with redundant power supplies, redundantCPUs and redundant communication lines

System Bus

10 MB Ethernet LAN

ControlCenter

RTU560

IED IED IEDIED IED

IED

I/OSubrack

I/OSubrack

I/OSubrack

I/OSubrack

I/OSubrack

I/OSubrack

CMUA1

CMUA2

CMUB1

CMUB2

Power

Supply 2

PowerSupply

1

CMU3

I/OSubrack

I/OSubrack

I/OSubrack

I/OSubrack

IED


3 Communication

3.1 General

The practical handling of the different communication protocols running on one main CMUboard is defined as follows:

• Max. two different protocols to the NCC or to the sub-RTUs or IEDse.g. IEC 870-5-101 to the NCC and IEC 870-5-103 to support protection relays

• Two peripheral bus segments with a maximum of 2x6 I/O subracks

With a maximum of sixteen CPU boards, the possibility is given for a total of 32communication lines with different protocols.

The internal process database contains all process objects. This includes the directlyconnected I/O signals via I/O boards and the process signals coming from the IEDs andfrom the sub-RTUs all the information from the process database can be provided forNCC communication.

Examples of communication protocols provided with RTU560:

Host communication (HCI) interfaces towards the NCC or router RTUs

• IEC 60870-5-101 slave

• IEC 60870-5-104 slave

• DNP 3.0. slave

Subdevice communication (SCI) Interfaces to subordinated devices

(sub-RTUs and IEDs)

• IEC 60870-5-101 master

• IEC 60870-5-103 master

Communication RTU560 System Description


Figure 3-1: RTU560 Network

IEC 60870-5-104WAN

Network Control Center

Sub-RTUMarshalling Rack


Station Control

IEC 60870-5-104

IEC 60870-5-103 IEC 60870-5-101

IEC 60870-5-101DNP 3.0

IEC 60870-5-101DNP 3.0


SPABusModbus

IEC 60870-5-104

IEC 60870-5-1010DNP 3.0

IED

HCI HCI HCI

SCI SCIPDP

RTU560

Process IED

IED

IED

IC

SCI

RTU560 System Description Communication


3.2 Host communication interfaces

The RTU560 allows the communication up to eight different NCCs by using the serialinterfaces of 560SLI01 CMU or serial and Ethernet interfaces from the 560ETH01 CMU.The configuration of the interfaces as host and communication lines with their protocols iscompletely done in RTUtil NT. There are no hardware switches to configure theinterfaces.

For detailed information and protocol specific restrictions see the host communicationinterface of the protocol.

The assignment of UART host protocols to the serial interfaces is totally free. There areno dependencies between the different protocols on one CMU. The only restriction is thenumber of communication protocols offered in one firmware package.

Protocols not using UART are restricted to the interfaces CPA and CPB on the CMU560SLI01 and 560ETH01.

Ethernet and TCP/IP based protocols could only be used with the Ethernet interface onthe 560ETH01 CMU.

Monitoring Direction

All active NCCs get any message that is created in the RTU560. Also any message thatcomes from a substation and could be translated between the protocols is sent to theactivated NCCs.

To avoid transmission of certain data points on certain HCIs, a filter can be set in theconfiguration for these data points.

In Monitoring Direction the following RTU560 information types are translated into protocolspecific telegrams:

• SPI Single Point Information

• DPI Double Point Information

• STI Step Position Information

• BSI Bit String Information

• ITI Integrated Totals

• DMI Digital Measured Information

• AMI Analog Measured Information

RTU information qualifier (Blocked, Substituted, Not Topical Invalid) can translated intothe protocol if supported.



Command Direction

Commands to the RTU560 are accepted by all central systems in the same way. There isno restriction to the number of different commands that can be handled at a time in theRTU560. The acknowledgement of a command will be sent to every NCC (if supported bythe protocol).

In Command Direction the protocol specific telegrams are translated into the followingRTU560 information types:

• SCO Single Command Output

• DCO Double Command Output

• ASO Analog Setpoint Output

• DSO Digital Setpoint Output

• BSO Bitstring Output

General Interrogation

The HCI contains a database with the actual state of the process data objects and thestate of the objects from sub-stations. A general interrogation command is answereddirectly from HCI with the entries of this database.



3.3 Sub-Device Communication Interface

The SCI supports various communication protocols. The protocol specific configurationparameters are described in additional documents.

The configuration of the SCI and communication lines with their protocols is completelydone in RTUtil NT. There are no hardware switches to configure the interfaces.

The SCI can manage up to 32 devices per line. In a RTU560 it is possible to have up to60 sub-lines.

For detailed information and protocol specific restrictions see the Sub-Devicecommunication interface of the protocol.

The assignment of UART sub-protocols to the serial interfaces is totally free. There are nodependencies between the different protocols on one CMU. The only restriction is thenumber of communication protocols offered in one firmware package. Not all existingprotocols can be combined on one CMU board. Only certain combinations of protocolsare possible.

Protocols not using UART are restricted to the interfaces CPA and CPB on the CMU560SLI01 and 560ETH01.

Ethernet and TCP/IP based protocols can only be used with the Ethernet interface on the560ETH01 CMU.

Monitoring Direction

In Monitoring Direction the protocol specific telegrams are translated into the followingRTU560 information types.

• SPI Single Point Information

• DPI Double Point Information

• STI Step Position Information

• BSI Bit String Information

• ITI Integrated Totals

• DMI Digital Measured Information

• AMI Analog Measured Information

If the specific protocol supports qualifiers they will be translated into the RTU560information qualifiers (Blocked, Substituted, Not Topical, Invalid).



Command Direction

In Command Direction the following RTU560 command types are translated into protocolspecific telegrams:

• SCO Single Command Output

• DCO Double Command Output

• ASO Analog Setpoint Output

• DSO Digital Setpoint Output

• BSO Bitstring Output


4 RTUtil NT

4.1 Basics

The basic topics of RTUtil NT are:

• Configuration and data engineering tool for RTU560 projects

• The user interface is structured according to the principles of IEC 1346-1

• MS Windows NT 4.0 platform

• The User Interface of RTUtil NT is an application based on the Microsoft standardpresentation format

• Documentation of all project steps

• External data interface concept

• Multilingual tool (user interface and help files)

• Delivery version with setup, installation and uninstallation program on CD-ROM

4.2 System requirements

The performance requirements for the data engineering tool RTUtil NT, particularly thefree disc space, depends on the project size. Basic requirements are:

• Operating system: MS Windows NT 4.0

• Memory: 64 MB RAM

• Processor: Pentium class

• Hard disc: > 200MB free disc space

• Hard lock: dongle

RTUtil NT RTU560 System Description


4.3 RTUtil NT Structure

RTUtil NT enables the user to control the whole engineering process of an RTU basedsystem. All configuration data is managed from RTUtil NT. To do so several functionalconcepts for data storage, structuring and presentation are needed.

To meet the requirements the internal software structure of RTUtil NT is split up intodifferent function parts as shown in the figure below.

Figure 4-1: Overview RTUtil NT components

Database(DB)

UserInterface

(UI)

DocumentGenerator

(DG)

Plausibility Check(PC)

ExcelInterface

(EI)

DownloadTool(DT)

PLCInterface

(PI)

RTUtil NT



4.4 General Data Structuring and View

The general view of the user on the engineering data is implemented on the basis ofinternational Standard IEC 1346-1. This standard describes the structuring principles andreference designations for industrial systems, installations and equipment.

In the user interface this standard is presented in trees showing the RTU from differentpoints of view. To describe the whole process the view is split up into three trees. IEC1346-1 defines how to split up a system (function-, product- and location-orientedstructure).

The user interface structure offers three trees to describe the system structure usuallyused for an RTU.

• NetworkTree

The NetworkTree shows the lines and protocols for routing the data points throughthe network.

• SignalTree

In the SignalTree the location and designation of signals are shown. The signallocation describes the place of the data points in the primary process.

• HardwareTree

The HardwareTree presents the structure of an RTU with the levels cabinet, rack,board and the reference to the data points defined in SignalTree.

The structuring in trees provides a common presentation format and a general userinterface of the RTU data and the environment.

RTUtil NT RTU560 System Description


4.5 General Tree Structure

The following example shows the implementation of the structuring principles according toIEC 1346-1. In the picture Network - RTU - Process the project views down to the RTUinternal configuration are shown. This is only a small example of an RTU network. RTU01 is the concentrator station in this network. The right side of the picture shows theelectrical process (one bay in a station, with the double point indication Q0). This scenariowill be built up in the three trees: NetworkTree, SignalTree, HardwareTree.

Figure 4-2: Network - RTU - Process

The root node of a tree is similar to the tree type (e. g. SignalTree, HardwareTree).

The NetworkTree is the representation of the network structure. The concentrator RTU 01is chosen as root node in the NetworkTree because the concentrator RTU is normally aunique starting point in an RTU station network. The hosts (central systems) arerepresented below the root RTU.

In the SignalTree the electrical process is structured and the names of the single pointindications are defined. The name for every data point is derived from the structure of theelectrical process.

Some nodes have different locations of presentation (references) in several trees. Thesenodes are the line and station nodes from the NetworkTree and the data point nodes fromthe SignalTree. The line and station nodes have references in the HardwareTree and inthe NetworkTree. The data point nodes have references in the HardwareTree and in theSignalTree.

The HardwareTree describes the internal structure of the station nodes (e. g. RTU 01).The RTU and Line node types in the HardwareTree are linked nodes from theNetworkTree. The double point indication Q0 in the electrical process in the SignalTreeshall be linked with a binary input board in the HardwareTree.

23 NG 235V24V

UPOnOff

560SLI01Tx Rx C E

MMI

12ABA

2

B

1

560SLI01Tx Rx C E

MMI

12ABA

2

B

1

Com Subrack 560CSR01Rack TP 1, Segment 1

Rack TP 1, Segment 2

Rack TP 2, Segmen

Rack TP 2, Segment 2 Peripherie Bus Line, Segment 1

Peripherie Bus Line, Segment 2

Line 2

Line 1

Line 4Line 3

RTU 12

RTU 11

RTU 01

RTU 21

CS 1 CS 2

SPAx 1

SPAx 2

SPAx 2

Line 1 Line 2

Line 3 Line 4

Line 5

04 Plant Ladenburg 110kV

21.03 MW

Q0


5 Boards and Mechanics

5.1 General Boards of the RTU560

5.1.1 Communication and Processing Unit 560SLI01/02

The serial line interface 560SLI01/02 is one of the CMU boards (CMU = communicationunit) of the remote terminal unit RTU560.

The essential tasks are:

• Managing and controlling of the I/O boards via up to two interfaces to the RTUperipheral bus.

• Reading process events from the input boards

• Writing commands to the output boards

• Serial communication with up to four control centers

• Managing the time base for the RTU560 station and synchronizing the I/O boards

• Handling the dialogue with RTU560s PC based data engineering and diagnostictool RTUtil NT via the MMI interface

Within RTU560s communication subrack 560CSR01 the board occupies two slots. Itcontacts itself via a DIN F socket connector to the communication subrack.

Boards and Mechanics RTU560 System Description


Figure 5-1: Communication Unit 560SLI01/02

The two microprocessors are the essential hardware parts of the sharing the tasks.

• MPU 32 Bit Main Processing Unit

• SLC 8 Bit Serial Line Interface

The MPU 32 bit main processing unit manages the serial interfaces CP1, CP2(RS232/RS422, serial interfaces CPA, CPB (RS485/RS232) and MMI.

The SLC 8 bit serial line controller handles the time base for the I/O boards andsynchronizes them periodically.

The serial communication interfaces CP1, CP2 are designed to RS232C and RS422standard (software selectable).

The serial communication interfaces CPA and CPB are designed to RS232C and RS485standard (software selectable).

The MMI interface connector (RS232C) is integrated in the board's front plate. It is theMPU interface to the utility RTUtil NT.

Further information:Data Sheet 560SLI01/02 Publication No. 1KGT 150 420 / 1KGT 150 477

MPU Processor Bus

(RTU560 I/O Bus)

MMI

RTU System Bus Serial InterfaceRS232 / RS422

1 2

Serial Interfaces RS485 / RS232

A B

RTU BusController UART

UARTRAM/FlashMemory

MPUNS486

RAM

SLC

RTU560 System Description Boards and Mechanics


5.1.2 Communication and Processing Unit 560ETH01/02

The Ethernet unit 560ETH01/02 is one of the CMU boards (CMU = communication unit)of the remote terminal unit.

The essential tasks are:

• Managing and controlling of the I/O boards via up to two interfaces to the RTUperipheral bus.

• Reading process events from the input boards

• Writing commands to the output boards

• Communications with control centers and local MMI systems via the implementedEthernet 10Base2 LAN interface

• Managing the time base for the RTU560 station and synchronizing the I/O boards

• Handling the dialogue with RTU560s PC based data engineering and diagnostictool RTUtil NT via MMI interface

Within RTU560s communication subrack 560CSR01 the board occupies two slots. Itconnects via a DIN F socket connector to the communication subrack.

Figure 5-2: Communication and Processing Unit 560ETH01/02

(e.g. RTU 560 I/O bus)

MPU Processor Bus

MMI

RTU System Bus

Serial Interfaces RS485 / RS232

A B

RTU BusController

EthernetController

UARTRAM/FlashMemory

MPUNS486

RAM

SLC

10 MB Ethernet LAN



The two microprocessors are the essential hardware parts of the board, sharing the tasks.

• MPU 32 Bit Main Processing Unit

• SLC 8 Bit Serial Line Interface

The MPU 32 bit main processing unit manages the serial interfaces CPA, CPB(RS485/RS232) and MMI.

The SLC 8 bit serial line controller handles the time base for the I/O boards andsynchronizes them periodically.

The serial communication interfaces CPA and CPB are designed acc. to RS232C andRS485 standard (software selectable).

The MMI interface connector (RS232C) is integrated in the board's front plate. It is theMPU interface to the utility RTUtil NT.

Further informationData Sheet 560ETH01/02 Publication No.1KGT 150 413 / 1KGT 150 475



5.1.3 Bus Connection Unit 560BCU01

The bus connection unit 560BCU01 is designed to make the RTU560 system bus signalsfrom the 560CSR01 accessible to the outside and make a connection to a second560CSR01.

ALARM (ALR) and WARNING (WRN) are signalled to the outside with relay contacts.

An external minute impulse may be connected via an optocoupler. The filtered internalminute impulse is outputted as 24 V impulse.

Using the 9-pole Sub D connector, the SEB (SEB = system extension bus) is connectedto a second bus connection unit 560BCU01.

The 560BCU01 may be used only in a communication sub rack 560CSR01.

Figure 5-3: Bus Connection Unit 560BCU01

Further information: Data Sheet 560BCU01 Publication No. 1KGT 150 408

SEB

RTU

Sys

tem

Bus

TSI +

TSI -

+24 V

+24 V

ATR

ALR

WRN

TSO

retriggeringmonoflop

1

1≥≥≥≥

≥≥≥≥

30 s

TSI

Alarm 1

Alarm 2

Warning 1

Warning 2

TSO +

backplane connector




The bus connection unit 560BCU02 is designed to make the RTU560 system bus signalsaccessible to the outside.


An external minute impulse may be connected via an optocoupler. The filtered internalminute impulse is outputted as 24 V impulse.

The 560BCU02 may only be used in the 23TP21.

With this board two RTU560 communication boards 560SLI01 and/or 560ETH01 areusable within the 23TP21.


Further information: Data Sheet 560BCU02 Publication No. 1KGT 150 409

RTU

Sys

tem

Bus

TSI +

TSI -

+24 V

+24 V

ATR

ALR

WRN

TSO


1

1≥≥≥≥

≥≥≥≥

RTU System Bus

30 s

TSI

plug-interminal strip 1

plug-interminal strip 2

Alarm 1

Alarm 2

Warning 1

Warning 2

TSO +




The bus connection unit 560BCU03 is designed to make the RTU560 system bus signalsaccessible to the outside.


An external minute impulse may be connected via an optocoupler. The filtered internalminute impulse is output as 24 V impulse.

The 560BCU03 may be used only in the 23ET23.

With this board two RTU560 communication boards 560SLI01 and/or 560ETH01 areusable within the 23ET23.


Further information: Data Sheet 560BCU03 Publication No.1KGT 150 410

RTU

Sys

tem

Bus

TSI +

TSI -

+24 V

+24 V

ATR

ALR

WRN

TSO


1

1≥≥≥≥

≥≥≥≥

RTU System Bus

30 s

TSI

subconnector 1

subconnector 2

Alarm 1

Alarm 2

Warning 1

Warning 2

TSO +



5.1.6 Power Supply Unit 560PSU01

The power supply unit 560PSU01 generates the two supply voltages (5 V DC and24 V DC) for the RTU560 boards in the communication subrack 560CSR01. The outputpower is sufficient to supply a communication subrack 560CSR01 with typicalconfigurations.

It is possible to configure a redundant power supply for project configurations with higherrequirements to availability. In this configuration two power supply units 560PSU01 areoperating in parallel. Each one can to take over the full load if the other power supply fails.

The power supply unit 560PSU01 is available in two versions for different input voltageranges, for the range from 24 ... 60 V DC and in a second version for the range from110 ... 220 V DC.

Figure 5-6: Power Supply Unit 560PSU01

The power supply unit has the following properties and functions:

• potential isolation between inputs and outputs

• cooling by natural convection

• electronic power limitation

• short-circuit proof

• over-voltage protection

• controlled load balancing

• two light emitting diodes for displaying output voltages U1 and U2

• parallel operation with monitoring of the redundant power supply configuration

• Alarm indication (relay) in case of failure

Further information: Data Sheet 560PSU01 Publication No.1KGT 150 416

+Ue

-Ue

PE

ALARM

+U1

-U1

+U2

-U2

F1S1

5 V DC

24 V DC



5.1.7 Power Supply Unit 23NG24

The power supply unit 23NG24 generates the two supply voltages (5 V DC and 24 V DC)for the RTU560 boards. The output power is sufficient to supply a RTU560 subrack withtypical configurations.

The power supply unit 23NG24 is available in two versions for different input voltageranges, for the range from 24 ... 60 V DC and in a second version for the range from110 ... 220 V DC.

Figure 5-7: Power Supply Unit 23NG24

The power supply unit has the following properties and functions:

• cooling by natural convection

• electronic power limitation

• short-circuit proof

• over-voltage protection

• controlled load balancing

• two light emitting diodes for displaying output voltages U1 and U2

Further information: Data Sheet 23NG24 Publication No.1KGT 150 414

+Ue

-Ue

PE

+U1

-U1

+U2

-U2

F1S1

5 V DC

24 V DC



5.1.8 Real Time Clock 560RTC01

A remote terminal unit RTU560 can be synchronized with the time information receivedfrom the global positioning system (GPS) satellites using the module 560RTC01. TheRTU560 reads the time and date from the module 560RTC01 and synchronizes itsinternal time to the standard time by the means of a minute pulse. The use of the module560RTC01 ensures that process information from several terminal units are synchronized,when they include time information.

Figure 5-8: Real Time Clock 560RTC01

Further information: Data Sheet 560RTC01 Publication No. 1KGT 150 418

serial

RTU system bus

FR LS

MNST

RS 232

+24V

-MIN1

minute pulse

+

-

MIN2

transmittermonitoring

k1

Alarm

monitoring

4

ext. GPS antenna

GPSreceiver



5.1.9 Real Time Clock 560RTC02

A remote terminal unit RTU560 can be synchronized with the standard time of thelong-wave transmitter DCF 77 using the module 560RTC02. The RTU560 reads the timeand date from the module 560RTC02 and synchronizes its internal clock to the standardtime by means of a minute pulse. The use of the module 560RTC02 ensures thatindications from several terminal units are synchronized, if they include a time information.

Figure 5-9: Real Time Clock 560RTC02

Further information: Data Sheet 560RTC02 Publication No. 1KGT 150 453

k1

ext. antenna

Quartz

serial

RTU system bus

FR CD

STMN

RS 232

+24V

-MIN1

minute pulse

+

-

MIN2

transmittermonitoring

monitoring

4signalevaluation



5.1.10 Modem 23WT21

The data transmission follows the CCITT V.23 standard. The 23WT21 modem can run on600 or 1200 Bit/s, according to V.23.

On a two-wire transmission line a 23WT21 modem can be used in half duplex operation,for duplex operation a four-wire line has to be reserved. On a multi drop line up to 10stations may be configured without repeaters. 23WT21 is connector compatible to the23WT20 and 23WT22 modems.

Further information: Data Sheet 23WT21 Publication No. 1KGT 150 427

5.1.11 Modem 23WT22

The modem is used for remote data transfer using voice frequencies via telephone linesand other transmission channels. Channel frequencies and baud rates can be selectedaccording to CCITT frequency maps (R.35...R.38) or V.23 respectively. Beside the CCITTdefinitions the channels can be set in 120 Hz steps.

The modem operates on the frequency shift keying principle (FSK). On a multi drop lineup to 10 stations may be configured without repeaters.

Figure 5-10: Modem 23WT22

Further information: Data Sheet 23WT21 Publication No. 1KGT 150 428

k1

RxD RxD DCD

TxD TxD

NF2a

NF2b

TxD (D1)

RTS (S2)

DCD (M5)

RxD (D2)

AK1

MK1

RK1

DTE.SGND

DCE.SGND

DSP

SQL

EQZ

CTS (M2)

NF1a

NF1b

CTS

k1

DSR (M1)

ie

ie

ie

iei e

i e

i e

i e



5.1.12 Fibre Optic Coupler 23OK22

The board 23OK22 is used for transmitting data via multimode optical fibre cables.Optical fibre cables are not sensitive to inductive and capacitive interferences as well asto potential differences between the two data communication equipment. Fibre optic linkswill be used for bridging over distances in critical environments.

The possible distance depends on the type of optical fibre cable used and can be up to2600 m (glass optical fibres).

The board can be used for the signal conversion of the receive and transmit data of thefollowing electrical serial interface standards:

• RTU560 peripheral bus

• RS-422

• RS-485

• RS-232C

Figure 5-11: Fibre optic coupler board 23OK22

Hence the following applications are possible in the RTU560 remote station:

• Substitution of the RTU560 electrical serial peripheral bus between all subracks of a station between distributed groups of subracks. E.g. a link between two RTU560

cubicles with some subracks each.

• Coupling of digital protection relays (IEC 60870-5-103) or SPA-Bus devices withfibre optic interfaces in point-to-point configuration in star configuration in ring configuration (SPA-Bus only)

fibrereceiverRS C

RS-232 C

≥1

peripheral bus

RS-422

RTU

opticalfibretransmitter

optical

RS-422

TX

RX

RS-485



• Direct fibre-optic link between the RTU560 station (I/O-bus interface) and thecentral system in a point-to-point link.

• Connection of other units with an optical interface (project specific).

The board is available with two different fibre-optic connector types:

• R5011: for glass optical fibres (connector BFOC/2.5 / IEC-SC86B)

• R5012: for plastic optical fibres (connector F-SMA / IEC 874-2)

Further information: Data Sheet 23OK22, Publication-No. 1 KGT 150 415



5.1.13 Mains Adapter 23VG23

The mains adapter 23VG23 is an AC/DC converter in combination with an external back-up battery for use as an uninterruptible power system (UPS). It contains a switch-modepower supply of 92 V AC to 265 V AC without input voltage switchover. The mainsadapter supplies an output voltage of 24 V DC with an output current of min. 0.2 A andmax. 2 A.

It can supply the boards of an RTU560 subrack with a power output of 48 W.

Figure 5-12: Mains adapter 23VG23

In the mains adapter there is integrated:

• a battery charging device

• a switch-over device and

• a exhaustive discharge protection

The mains adapter contains contacts for monitoring of mains failure and of low battery.Double output terminals are available for simplified wiring.

Further information: Data Sheet 23VG23, Publication No. 1 KGT 150 423

F1L1

N

PE

115 / 230 V AC

Ut1

Ut2

+Ub-Ub

K1K2

LB1LB2

-Ua+Ua

-Ua+Ua

F2

Battery with

Back-upbattery

Power failure

Output24 V DC

Low battery

temperature sensor

~

=



5.1.14 Mains Adapter 23VG24

The mains adapter 23VG24 is an AC/DC converter for an input voltage of 115 or230 V AC. It supplies an output voltage of 24 V DC with an output current of max. 10 A.

It can supply the module racks, the mounting panels and the I/O modules of a RTU560station with a power output of approx. 240 W.

Figure 5-13: Mains adapter 23VG24

The mains adapter is constructed in a rugged housing for mounting on mounting panelswith mounting rails..

The wires are connected to the input and output side by the use of plug-in terminal strips.

The input voltage can be adopted by the use of a voltage selector switch placed on theside of the device.

The output voltage is regulated at the terminal connector to approx. 1 %. The output issustained short-circuit-proofed, stable at no load and overload-proofed.

Further information: Data Sheet 23VG23, Publication No. 1 KGT 150 424

F1L

N +

-PE

115 / 230 V AC

24 V DC

~=



5.2 Input / Output Boards

The connection to process signals is made by means of input and output boards. Each ofthe boards is equipped with its own microprocessor (EAP), which is configured with a 24kByte RAM and a 32k Byte EPROM program memory.

The processor executes extensive tests of the memory and the input/output hardware atstart-up and during run-time. Faults or error conditions on the board are indicated by a redLED (ST) on the front panel. The monitoring logic with a watchdog timer controls thecorrect operation of the microprocessor.

5.2.1 Time Management on the I/O Boards

For the synchronization of their own timer all the I/O modules receive the current time withan accuracy of 300 microseconds from the central control unit via the serial RTU560system bus (typically every 2 seconds). The I/O boards have a control loop whichcompensates the inaccuracy of the quartz crystal.

5.2.2 Board Design

Figure 5-14: Principle layout of the I/O boards

The hardware circuitry of the bus module is the same for all I/O boards and located in theupper half of the Euro-card. The bus module is assembled by the IOP, the bus connectionto the RTU560 system bus and the necessary monitoring circuits. Each I/O board can beaccessed by the parallel or serial peripheral bus. The hardware circuitry for the I/Ointerfaces is placed in the lower half of the board.

Front panel

RTU560System bus

Process signals

Monitoring circuit Processor circuit Bus connection

Device-specificprocessing circuit



5.2.3 Software Organization

The software of the I/O boards can be split into two essential parts, the general busmodule and the task specific I/O interface software. The bus module handles all tasks forcommunication with the central control unit and provides general services for the I/Osoftware.

5.2.4 Analog Output Board 23AA20

Analog control outputs for sequential or closed-loop control, display instruments,measured-value recorders etc. can be connected to the RTU560 by the analog outputboard 23AA20. The 23AA20 board has two output channels which are isolated and can beconfigured to different output current ranges. The output format unipolar, bipolar or livezero (4...20 mA) will be configured by software parameters.

The following output current ranges can be configured by plug-in jumpers, for eachchannel individually:

• 0 ... 2,5 mA, ±2,5 mA

• 0 ... 5 mA, ± 5 mA

• 0 ... 10 mA, ±10 mA

• 0 ... 20 mA, ±20 mA

• 4 ... 20 mA, (live zero)



Figure 5-15: Analog output board 23AA20

Both channels can be individually adjusted to different output ranges. The analog value isrepresented in a binary way by 11 bits plus sign.

Further information: Data Sheet 23AA20, Publication No. 1 KGT 150 401

ST

D

A

I011

I010

+

-

I021

I020

+

-

D

A

outputmemory

opto-

coupler

DC/DC

converter

adjustmentcurrent range

adjustmentcurrent range

B U

S

M O

D U

L E

DC/DC

converter

B U

S

M O

D U

L E

outputmemory

opto-

coupler



5.2.5 Analog Input Board 23AE21

The 23AE21 board records up to eight analog measured values. The 23AE21 boardallows the connection of all typical measured value ranges

It can be configured for the following measured ranges by simple switches and jumpers:

• ± 2 mA

• ± 5 mA

• ± 10 mA

• ± 20 mA

• ± 40 mA

• ± 2 V DC

• 0 ... + 20 V DC

Other effective ranges and live zero signals generated from these ranges throughconversion in the CMU (CMU = communication unit).

In terms of function and pin arrangement the 23AE21 board is compatible with the23AE20 board.

Figure 5-16: Analog input board 23AE21

EA11

EA10

+

-

EA80-+ EA81

AD converter

multiplexer connection

A

D

input circuit

prot

ectio

n ci

rcui

t

BUS

MODULE

input circuit

resi

stor

net

wor

k

BUS

MODULE



Basic checks and, cyclical processing functions requiring considerable computingcapacity will already be carried out on the board reducing the burden of thecommunication unit. The board transmits relevant changes as events via the peripheralbus.

The 8 differential inputs are not isolated from the RTU560 power supply.

23AE21 resolves unipolar or bipolar values into 4096 steps (12 bit plus sign) for 100 % ofthe measuring signal.

The differential inputs are protected against static and dynamic over-voltages by aprotection circuit. A low-pass filter suppresses non-line frequency ac disturbance.

The AD converter, operating with the sigma-delta method scans with a higher resolutionand has additional algorithms for a high suppression of line frequency and harmonicinterference voltages. Even for a deviation of ± 10 % of the line frequency there is still asuppression of > 45 dB. The internal high resolution allows all measuring ranges(exception: ± 2 V DC (11 bit + sign)) to be scanned with the same resolution (12 bit + sign)on one board. A 9th channel is used for automatic zero calibration.

Further information: Data Sheet 23AE21, Publication-No. 1 KGT 150 402

5.2.6 Binary Output Board 23BA20

The binary output board 23BA20 can be used for the isolated output of up to 16 binarysignals to the process. An output can be freely assigned to a number of processingfunctions within the scope of the configuration rules. The 23BA20 can be used for thefollowing types of signals:

• Object commands with 1- or 2-pole output without (1-out-of-n) check

• Object commands with 1.5- or 2-pole output with (1-out-of-n) check

• Set-point messages

• General output messages



Figure 5-17: Binary output board 23BA20

The binary output is made via relay contacts. Resistive loads of up to 60 W can beswitched with output voltages between 24 and 60 V DC. The process relays to beswitched have to be equipped with zero voltage diodes.

The 16 outputs are combined into two groups. Each group of 8 outputs a common return.The groups are isolated from one another as well as from other logic.

Commands to the process equipment can be output either directly or in conjunction withthe board 23BA22 command output monitoring.

Further information: Data Sheet 23BA20, Publication No. 1 KGT 150 403

W1

A1

A8

A9

A16

W2

k01

k08

k11

k18

k01

k08

k11

k18

k1 + 24V

k1CO

PST

ST

driver

voltagemonitoring

output relay

output relay controlrelease

monitoring of the command output

B U

S

M O

D U

L E



5.2.7 Binary Output Board 23BA22

The 23BA22 board is intended to be used in the Remote Terminal Unit RTU560.

The 23BA22 board should be installed if the output circuit of an object command has tobe checked before the actual command is given. The 23BA22 board executes an(1 out of n)-check. It checks that only one interposing relay will be activated in the outputcircuit. This is feasible only if all interposing relays connected to one check circuit have thesame resistance value.

The 23BA22 board allows to check two different interposing relay types by using twoseparated check circuits. The permissible tolerance range is defined by means ofparameters.

Up to 32 different relay types can be supervised by means of the 23BA22 boards in oneremote terminal unit

The 23BA22 board is functional and pin-compatible to the 23BA21 board. The essentialadditional tasks are:

• Galvanic isolation of the check circuit

• Suppression of line frequency during measuring

Figure 5-18 shows the connection of a binary output board 23BA20 and a 23BA22 boardin two-pole activation for the (1 out of n)-check.

The check circuit for measuring the resistance of the relay coil is galvanic isolated againstthe electronic voltage and against the switching voltage (UD) of the interposing relays.This is done by means of a galvanic isolated DC/DC-converter and optocouplers.

An auxiliary test voltage is not necessary. During measuring the 23BA22 board switchesthe respective check circuit (P1 or P2) two-pole and therefore separates both.

In the (1 out of n)-check the 23BA22 board measures the resistance value in the outputcircuit and compares this value with the configured upper and lower limit values.

If the resistance value is within the limits the selected interposing relay can be activated.The object command will be acknowledged positively.

If the measured resistance value is outside the tolerance limits the 23BA22 blocks theoutput and indicates the error to the CMU (CMU = communication unit).

The limits of the coil resistance for the interposing relay can be adjusted in steps of 10 ∧in the range of 100 Ω to 10 000 Ω by means of parameters. Line frequency ripple voltageswill be filtered.

The direct activation of process relays on electrical apparatus (isolators, circuit-breakers)is possible by using an additional booster relay Figure 5-19.




Figure 5-18: Binary output board 23BA22

Figure 5-19: Relay activation by means of a booster relay

+23BA22UDV

k1

+ DU -

BO

+ P1 -

A1 An+8

23BA20

k3 k2

kB

kB UD1+

Booster

KB

W1W2

Process relay(apparatus)

-

-

+

-

COTM1TM0PST

UDV

k1

-+

"GO"-Relais

(1-out -of-n)-check

2 BO

+ P2 - + P1 -further23BA20

2-pole connection

W2W1

k01 k08 k11 k18

A1 A8 A9 A16

23BA20

Interposing relayprocess

1: Monitoring switching voltage UD2: Monitoring UD during command output3: Resistance measurement of output circuit (1-out-of-n)-check

X502 X501

k5 k4 k3 k2

LOC23BA22

B U

S

M O

D U

L E

-+

LOC

DC

DC

1

3



In the (1-out-of-n) check the 23BA22 board measures the resistance value in the outputcircuit and compares this value with the configured upper and lower limit values.

If the resistance value is within the limits the selected interposing relay can be activated.The object command will be acknowledged positively.

If the measured resistance value is outside the tolerance limits the 23BA22 will blocks theoutput and indicates the error to the CMU (CMU = communication unit).

The limits of the coil resistance for the interposing relay can be adjusted in steps of 10 ∧in the range of 100 Ω to 10 000 Ω by means of parameters. Line frequency ripple voltageswill be filtered by the A/D converter.

The direct activation of process relays on electrical apparatus (isolators, circuit-breakers)is possible by using an additional booster relay Figure 5-19.


5.2.8 Command Output 23BA30

The relay module 23BA30 has 16 switching relays with 2 normally open (NO) contactseach, which are completely wired to the output terminal strip. The module can be used for

• the isolation of the 16 output circuits of a 23BA20 with higher a switching capacity inaddition potential isolation per output circuit switching voltage up to 220 V DC

In the operation mode interposing, each of the 16 output relays of a 23BA20 board isattached to the corresponding relay of a 23BA30 module.




5.2.9 Binary Input Board 23BE21

The binary input board 23BE21 is used for the isolated input of up to 16 binary processsignals. Scanning and processing of the inputs are executed with the high time resolutionof 1 ms. Allocation of an input to a processing function can be at will within the rules ofconfiguration. The board 23BE21 can process the following types of signals:

• 16 single indications with time stamp

• 8 double indications with time stamp

• 2 digital measured values each with 8 bit

• 1 digital measured value with 16 bit

• 16 pulse counters

Figure 5-20: Binary Input board 23BE21

The 16 inputs form two groups. The inputs are isolated by means of optocouplers. Theboard allows process signal voltages from 24 to 60 V DC. The input circuit is dimensionedin that way, that current regulating [controlling] diodes keep the signal current constant.

Further information: Data Sheet 23BE21, Publication No. 1 KGT 150 406

E03

E01

W01

E02

E08

E07

E06

E05

E04

W02

E16

E15

E14

E13

E12

E11E10

E09

B U

S

M O

D U

L E



5.2.10 Binary Input 23BE30

If the binary input board 23BE21 fails to meet the requirements to the input signal channelthe binary input module 23BE30 can be used instead.

• process signal voltage 110 V DC

• electrical isolation per input channel

Like the binary input board 23BE21 the binary input module 23BE30 has 16 inputchannels. The module 23BE30 is available for process signal voltages of 24, 48, 60 or110 V DC.

The module 23BE30 can be easily snapped on standardized mounting rails. The processsignal wires will be connected in two-pole form to screw terminals (max. AWG 12 / 2.5mm2).

The electrical isolation is done by optocouplers. LEDs (yellow) indicate the signal state.

Figure 5-21: Binary Input module 23BE30

Further information: Data Sheet 23BE30, Publication No. 1 KGT 150 407

X2 / 1

+

-

3

4Input 2

2

X1 / 1

X3 / 1

2

+

-

5

6Input 3

3

+

-

31

3216

2

X4 / 1

2

17

input 1

+

-

1

3

5

31

+ 24 V DC

+ 24 V DC

Input 16



5.3 Mechanical Construction

The subracks of the remote terminal unit RTU560 can be installed directly in a swingframe or in a 19“ rack. An alternative solution is the RTU560 mounting panel, which canbe screwed onto a mounting plate on the back side of the cubicle. In this case thesubracks are mounted on a mounting panel with plugs and connectors.

For the configuration of RTU560 substations with subracks or mounting panels variouspossibilities are offered as a standard. Available are:

• Wall housings in two sizes accommodating one or two mounting panels

• Cabinet with mounting assembly accommodating up to four mounting panels

• Swing frame cabinet accommodating up to five I/O subracks

Figure 5-22: RTU560 hardware structure RTU560A

1234O

FF

S1

560PSU01

5 V24 V

UE +UE -

PE

ON

OFF

560PSU01 5 V

24 V

UE +

UE -

PE

ON

OFF

560ETH01

A

B

A

MMI

E

CE

ERR

560ETH01

A

A

MMI

E

CE

ERR

B

Tx Rx CEAB

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI

Tx Rx CEAB

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI

560ETH01

A

A

MMI

E

CE

ERR

B

Tx Rx CEAB

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI FRLSMN

560BCU01

ALR

TSI

TSO

SEB

WRN

ERR

560RTC02

Communication unit

Communicationsubrack

Max. 6extension subracks

RTU

Sys

tem

Bus

Process connections 119

Decentralized configuration unit23NG2424 V5 V

ON

0FF

UE +

UE -

PE



Figure 5-23: RTU560 hardware structure RTU560C

5.3.1 Assembly variants

There are four possibilities for the installation of RTU560 boards:

RTRU560A:

• communication subrack 560CSR01 R0012,max. 6 extension mounting panel 23TP21

• communication subrack 560CSR01 R0011,max. 6 extension subrack 23ET23

RTRU560C:

• mounting panel 23TP21 with 560BCU02,max. 6 extension mounting panel 23TP21

• subrack 23ET23 with 23BCU03max. 6 extension subrack 23ET23

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI

560SLI01

A

B

1

2

AB12

Tx Rx CEERR

MMI

Communication unit

Communicationsubrack

Max. 6extension subracks

RTU

Sys

tem

bus

Process connections 119

Decentralized configuration unit23NG2424 V5 V

ON

0FF

UE +

UE -

PE

23NG2424 V5 V

ON

0FF

UE +

UE -

PE

560BCU0x



5.3.2 Communication subrack 560CSR01

The communication subrack 560CSR01 is prepared to accommodate the RTU560 powermodules, communication units 560ETH01 and 560SLI01, real time module and a buscommunication unit.

The 560CSR01 is available in 2 different versions:

• R0011: for swing frame mounting

• R0012: for assembly on mounting panel

Figure 5-24: Mechanical design of communication subrack 560CSR01

All connections to the outside are done via their connectors on the front panel. Thecommunication subrack itself has no connections to the outside.

The 19" board rack has a height of 3 HE for single eurocard format boards (DIN 41494).There are 11 slots for the installation of the boards.

Further information: Data Sheet 560CSR01, Publication No. 1KGT 150 411

Power supply unit

Communication units

Real time clock

Bus connection unit

12

34

OFF

S1

560PSU01

5 V

24 V

UE +

UE -

PE

ON

OFF

560PSU01

5 V

24 V

UE +

UE -

PE

ON

OFF

560ETH01

A

B

A

MMI

E

C

E

ERR

560ETH01

A

A

MMI

E

CE

ERR

B

Tx Rx CE

A

B

560SLI01

A

B

1

2

Tx Rx CE

ERR

MMI

Tx Rx CE

A

B

560SLI01

A

B

12

Tx Rx CE

ERR

MMI

560ETH01

A

A

MMI

E

C

E

ERR

B

Tx Rx CE

A

B

560SLI01

A

B

1

2

Tx Rx CE

ERR

MMI

A

B

1

2

Tx Rx CE

ERR

MMI

FR

LS

MN

560BCU01

ALR

TSI

TSO

SEB

WRN

ERR

560RTC02560SLI01

A

B

1

2

A

B

1

2

A

B

1

2

A

B

1

2



5.3.3 Extension Mounting Panel 23TP21

The extension mounting panel 23TP21 is intended to be installed in the RTU560 standardcabinet with mounting assembly 23SC20 or in the 23WG20 and 23WG22 wall housings.

Figure 5-25: Mechanical design of extension mounting panel 23TP21

The extension mounting panel 23TP21 is intended to accommodate the RTU560 generalboards as well as for the installation of up to 19 I/O-boards.

Further information: Data Sheet 23TP21, Publication No. 1KGT 150 422

Power supply unit

I/O boards

Supply connectorsProcess terminal strips

I/O-bus interface

23NG24

24 V

5 V

ON

0FF

UE +

UE -

PE



5.3.4 Extension Subrack 23ET23

The 23ET23 subrack can be used as an alternatives to the mounting panels. Then theequipment is installed either in an RTU560 standard swing frame cabinet or in a rack witha 19" frame. The internal wiring within the subrack is done by a printed board. On its rearside all connectors and adjusters are located, thus space requirements for the installationof the subrack can be minimized by using this printed board for cable connections.

The slot configurations of the 23ET23 extension subrack are the same as those for themounting panel.

Figure 5-26: Sub-connector design

For the physical interfacing of boards special edge connectors are used. The upper partof the edge connector is soldered directly to the printed board establishing the connectionto the RTU560 system bus. The process signals are connected by means of a sub-plugwhich clips into a cut-out. In addition to the use of prefabricated cables it is possible toattach individual wires during commissioning.

An integrated monitoring circuit constantly checks the supply voltages of the boards aswell as the functional operation of the central control unit.

Further information: Data Sheet 23ET23, Publication No. 1KGT 150 412.

Sub-connector

DIN-F connector with cutout for row 22 - 32



5.3.5 Cabinet and Housing Types

Various possibilities are offered for the installation of the subrack and mounting panel,which allow optimal adaptation to the local conditions:

• 23SC20 floor cabinet with mounting assembly accommodating a maximum of fourmounting panels 23TP21

• 23SR20 swing frame cabinet accommodating a maximum of six 23ET23 subracks

• 23WG20 wall housing accommodating one 23TP21 mounting panel

• 23WG22 wall housing accommodating two 23TP21 mounting panels

Figure 5-27: Swing frame cabinet 23SR20

Swingframe

23ET23 / 560CSR01

23ET23

23ET23

23ET23

23ET23



Figure 5-28: Standard cabinet with mounting assembly 23SC20

23VG24

Mounting plate

Cabel channel

Power supply unit

23TP21/560CSR01

23TP21

Mountingpanel

23TP21

23TP21



Figure 5-29: Wall housing 23WG22

All of these cabinet and housing types are available as standard. If required the RTU560subracks and mounting panels can be installed into other ABB or customer-specifichousing types, too.

Mounting plate

Mounting panel

Cable channel

23TP21

23TP21

23VG24


6 Telecontrol Functions

6.1 General

As shown in Fig. 2-3 and Fig. 2-5 (refer to chapter 2) the communication units and the I/Oboards share the processing of the telecontrol functions. The I/O boards take over theessential tasks of scanning and output and the communication unit the communicationwith the central systems as well as the organization and management of the processimage in the data base. All time critical functions are concentrated on the I/O boards.

The I/O boards signal process value or status changes as events. The I/O bus (IOC) ofthe communication unit detects and transmits the events to the communication unit(CMU) of the communication unit. To control the data flow, each I/O board has a FIFObuffer for the temporarily storage of up to 50 events. All events are time stamped.Commands to the I/O boards are checked for plausibility etc. and the outputs to the outputchannels will then be handled by the output boards autonomously.

The communication unit handles those telecontrol functions, which overlap the I/O-boards(e.g. (1-out-of-n) check).

The telecontrol functions are divided in:

• Monitoring direction Indication processing Analog measured value processing Digital measured value processing Incremented total Bitstring input value processing

• Command direction Object command output Regulation command output Setpoint message output Bitstring output

In Figure 6-1 the distribution of the tasks among the I/O boards and the central controlunit is shown by means of the example of indication processing.

Telecontrol Functions RTU560 System Description


Figure 6-1: The principle of task sharing illustrated by indication processing

Binary inputs

Electrical isolation

Digital filter

Oscillation suppressionIntermediate midposition of DI

FIFOEvents with time stamp

Transmission viaRTU560 system bus

Dual port memory

Intermediate midpositionsuppression of DICommand terminationby response indicationSequence capturingSequential event recordingOptional: Local printout

Telecontrol telegrams

Transmission toCentral system

23BE21

Communication unit

1 16

RTU560 System Description Telecontrol Functions


6.2 Monitoring Direction

6.2.1 Indication Processing

There are two types of indications:

• Single point input (SPI)

• Double point input (DPI)

Figure 6-2 shows the signal definition for SPI and DPI. Double indications are representedby two sequential bits within a 23BE21 board. The normal state of a DPI is an antivalentbit combination (10 or 01). The two intermediate positions 11 or 00 are handled with nodifference within the RTU560. An intermediate state is given during the runtime of a unitfrom one position to the other (e.g. an isolator switching from OFF to ON).

Figure 6-2: Indication type definition

an indication board consisting of max. 16 bit SPI and DPI can be mixed. But a DPI canstart on an odd bit-position only. A 23BE21 board it is possible to mix any type of binaryinputs. E.g. inputs not assigned to DPI or SPI may be configured as pulse counterindications as, digital measured values on bit-string inputs. Digital measured values andbit-string inputs must be configured such to start with bit position 1.

ON

10

01

OFF

10 00 01 11

ON 1OFF 0

0 1 0

Signal state Double point indication (DPI) Signal state Single point indication (SPI)

normal position intermediate position

OFF ON OFF ON OFF

DPI 8 DPI 7 DPI 6 DPI 5 DPI 4 DPI 3 DPI 2 DPI 1

1234567891011131415 1216 Bit position within board

DPI number within board

ONOFF

faulty position



6.2.2 Functions

The process data acquisition functions for indications processed by the RTU560 can besplit into functions handled by the:

• I/O controller (IOC) of the binary input board 23BE21

• Process data processing (PDP) part of the CMU

• Protocol specific communication interface part at a CMU

The data processing functions of the communication interface are described in thedocumentation of the respective communication protocol.

23BE21 functions: Reading input register (every millisecond) Digital filter (contact bouncing) Oscillation suppression (signal chattering) Signal inversion Time out monitoring for DPI intermediate position Store events in FIFO with time stamp

CMU - PDP: Intermediate midpoint position handling for DPI Command output response Group signals Transmission to internal communication



6.3 Analog Measured Value Processing

6.3.1 Analog Measured Value Types

Each analog value is converted by the analog digital converter (ADC) of the 23AE21board into a signed integer presentation. The presentation is shown in Figure 6-3. The100 % input signal value is represented by 12 bits plus sign.

Figure 6-3: Analog value presentation by ADC

The PDP converts the value to a normalized presentation.

2000

3000

1000

-2000

-3000

-20 -15 -10 -5 5 10 15 20

Input signal

[digits]

[e.g. mA] -100 25 50 75 100 [%]

Analog value presentation according to IEC 870-5-101

e.g. -20..+20mA

- 4096

+ 4096



6.3.2 Functions

The process data acquisition functions for analog measured values (AMI analogmeasured value input) processed by the RTU560 can be split into functions handled by:

• IOC of the analog input board 23AE21


• Protocol specific communication interface at a CMU


23AE21: Scan analog input cyclically Zero value supervision and switching detection Smoothing Threshold supervision on integrator algorithm Periodic update of RTU data base Store events into FIFO with time stamp

CMU - PDP functions: Unipolar and live zero conversion Scaling Threshold supervision on absolute threshold value Transmission to internal communication



6.4 Digital Measured Value Processing

There are two types of digital measured values (DMV):

• Digital measured input value (DMI)

• Step position input value (STI)

The RTU560 can handle different bit patterns to read them and convert them into a digitalmeasured value :

• 8 bit digital measured value (DMI8)

• 16 bit digital measured value (DMI16)

• 8 bit step position value (STI)

The RTU can handle conversions for:

• binary data (BIN)

• binary coded decimals (BCD)

• Gray code (GRAY)

The maximum length of a digital measured value is the 16-bit word of (= one 23BE21board). Double word values (23 bit) are not supported.



Digital measured value presentation

Each type is converted and scaled by the PDP.

Figure 6-4: Digital Measured Value presentation

An digital measured input value DMI is scaled to a normalized 16 bit value representation(+/- 100 %) For the step position information (STI) of a transformer or Petersen coil thevalue can only be in the range of -64 ... +63.

If an eight bit pattern is selected the residual 8 bit of the 23BE21 board can be used foranother digital value, for pulse counter values or indications.

1234567891011131415 1216 23BE21 Input channel

16 bit unsigned binary data(a)

15 bit + sign binary data(b)

(d)

(c)

(e)

7 bit + sign binary data

0..9 0..9 0..9 0..90..9 0..9 0..9 0..9 4 decade BCD unsigned

(f)

(g)

Word = Step PositionSTI

(Value = -64 ... +63 steps)

Word = Signed IntegerDMI

Scaling and/or Conversion

(A)

(B)

valuetwo's complement

S

S

S = Sign bit / Sign position

(i)

S

S 0..9 0..9 0..90..7 0..9 0..9 0..9

S

0..9 0..9

0..7 0..9S

S

S

8 bit unsigned binary data

4 decade BCD signed

2 decade BCD unsigned

2 decade BCD signed

16 bit gray code

15 bit signed gray code

8 bit gray code

7 bit signed gray code

(h)

(j)

(k)

(l)

0



6.4.1 Functions

The data acquisition functions for digital measured values processed by the RTU560 canbe split into functions handled by:

• IOC of the binary input board 23BE21


• Protocol specific communication interface part at a CMU

The data processing functions of the communication interface is described in thedocumentation of the specific communication protocol.

23BE21 functions: Reading input register (every millisecond) Digital filter (contact bouncing) Consistency check Store events in FIFO with time stamp

CMU - PDP: Signal inversion Scaling and format conversion Transmission to internal communication



6.5 Integrated Total Processing

6.5.1 Integrated Total Value Types

There are two types of integrated total values (ITI) defined in the RTU560:

• End of period reading counters (EPR)

• Intermediate reading counters (IR)

Both types have only one source and the IR is only an intermediate value of thecorresponding EPR. That means there is one ITI which is transmitted periodically in fixedperiods.

Figure 6-5: Integrated Total Values Definition for EPR and IR

Integrated total value presentation

Although the internal value representation is by a 32-bit signed integer the RTU560supports positive ITI values only on its local inputs. This allows ITI values between:

• 0..and...+ 2 147 483 647

Period Period PeriodPeriod

Intermediatereading

cycleEnd ofPeriodreading

End ofPeriodreading

End ofPeriodreading

End ofPeriodreading

Counts

time

Integrated total values with reset to zero at end of periodThe IR reading cycle must be 1/n of end of period timee.g.: if period = 60 minutes and n = 5 the IR cycle = 12 min

IRreading



6.5.2 Functions

The process data acquisition functions for ITIs processed by the RTU560 can be split intofunctions handled by:



• Protocol-specific communication interface part on a CMU


23BE21 functions: Reading input register (every millisecond) Digital filter (contact bouncing) Increment integration register Freeze integration register into relocation register

CMU - PDP: Freeze and read ITIs periodically Transmission to internal communication



6.6 Bitstring Input Value Processing

The RTU560 can handle bit patterns to read them and convert them into a bitstring inputvalue (BSI):

• 8 bit bitstring (BSI8)

• 16 bit bitstring (BSI16)

The maximum length of a bitstring is the 16-bit word of (= one 23BE21 board). Doubleword values are not supported.

6.6.1 Bitstring Value Presentation

Bitstring input values are transparently mapped into 32-bit BSI messages of the internalcommunication. If an eight-bit pattern is selected the residual 8 bits of the 23BE21 boardcan be used for another bitstring value, digital measured value, integrated total values orindications.

6.6.1.1 Functions

The data acquisition functions for bitstring values processed by the RTU560 can be splitinto functions handled by:



• Protocol-specific communication interface part on a CMU

The data processing functions of the communication interface are described in thedocumentation of the specific communication protocol.

23BE21 functions: Reading input register (every millisecond) Digital filter (contact bouncing) Consistency check Store events in FIFO with time stamp

CMU - PDP: Freeze and read ITIs periodically Transmission to internal communication



6.7 Command Direction

Signal outputs to the process and the sequential control of the operational equipment areprocessed and executed by the command processing function. The following commandtypes are covered by RTU560:

• Object commands single / double commands)

• Regulation commands (double commands)

• Setpoint messages (analog / digital)

• Bitstring output command

Only one command can be processed and output at the same time.

The communication unit accepts and checks the received command telegrams from thecentral system and releases them for execution if the check has been positive.

Depending on the command type the central control unit processes the commands likedata base update or checks and if the tests are positive, it prepares the command-specificoutput procedures. Then the command is transmitted to the output board via the I/O bus.

Depending on the command type the command is released to the process by the binaryoutput board 23BA20 or the analog output board 23AA20. Moreover the output boardcarries out some checks before output.

The RTU560 acknowledges commands to the central system within a time window ofapprox. 1.5 seconds. During that time the central control unit checks the command,transmits it to the output board and expects a return information that the command isaccepted and executed or initiated. If an error has occurred a negative acknowledgementwill be sent to the central system. The normal case of course is a positiveacknowledgement.

In most cases commands are subject to a very sophisticated security philosophydepending on most critical process applications. For this reason the RTU560 terminal unitexecutes extensive test and security procedures for each command to be processed:

• Each board carries out self-tests for hardware faults

• Each command telegram received is checked for plausibility by comparison withthe configured data in the database

• Each command is tested in the binary output board module 23BA20 by readingback the relay register

• A (1-out-of-n) check of the output relays and comparison with bit pattern is madecarried out on the output board module 23BA20

• The switching voltage for the output relays is monitored before and during theoutput of the command

• The command output pulse duration is monitored in the central control unit and onthe output board



The output relays on the output board module 23BA20 are not switched before successfulcompletion of the tests and enabling.

If an error is detected during the tests the command output will be aborted. This is alsoindicated directly on the output board module by the means of an LED.

For additional monitoring of the process output circuit for object commands, the commandoutput monitoring board 23BA22 can be used, which allows a (1-out-of-n) check of theinterposing relay.

6.7.1 Object Commands

This command type is used for the switching commands, e.g. for power circuit breakers orisolators. Object commands are always configured as impulse double commands with twoindependent output relays (ON / OFF). The following modes of operation are possible:

• Command output without (1-out-of-n) check 1-pole relay interfacing 2-pole relay interfacing

• Command output with (1-out-of-n) check 1.5-pole relay interfacing 2-pole relay interfacing

The commands are output to the process via the relay contacts of the binary output board23BA20. The following functions are possible:

• allows additional (1-out-of-n) check (command supervision)1.5-pole and two-pole switching

• allows two step commands (Select before operate SBO sequence)

• allows command termination by a response indication

• allows persistent output



6.7.2 Single Object Command Output

A single command has only one output relay. It can be configured as pulse ON or OFFcommand or as persistent output.

Single object commands can be wired with one relay contact per command (23BA20: 1-pole) or with two relay contacts per command (23BA20: 2-pole).

Single object commands are pulse outputs.The pulse duration is specified by theparameter Command pulse length per command (0.1 ... 25.5 sec.). Only the configureddirection is used for pulse output. The direction not configured is ignored.

Figure 6-6: Single command definition: pulse output

Single object commands can be configured as persistent outputs. In the persistent modean ON command switches the relay persistent on and the OFF command switches therelay to off.

Figure 6-7: Single command definition: persistent output

ON-commandK1

23BA20Interposing Relays

OFF-command

ON or OFFK1

23BA20outputpulse

Interposing Relays



6.7.3 Double Object Command Output

A double command has two independent output relays:

• one relay for ON direction

• one relay for OFF direction

Double object commands can be wired with one relay contact per command (23BA20: 1-pole) or with two relay contacts per command (23BA20: 2-pole).

Double object commands can be pulse outputs. The pulse duration is specified by theparameter Command pulse length per command. Only one channel ON or OFF can beactive at the same time. The two relays occupy two consecutive bits within a 23BA20output board. The ON-relay is always assigned to the odd channel and the OFF-relay tothe even channel.

Figure 6-8: Double command definition: pulse output

Double object commands can be configured as persistent outputs In persistent mode aON command switches the relay persistent on and the OFF command switches the relayto off.

Figure 6-9: Double command definition: persistent output

ON-Command OFF-Command

k1

k2


ON

OFF

k1

k2


ON

OFFOutputpulse

Outputpulse



6.7.3.1 Command Control by Response Indication

The pulse output of a running object command can be terminated earlier by thecorresponding response indication. For a secure switching off a selectable response delaytime can be configured /typ. 200 ms).

Figure 6-10: Command termination by response indication

pulse durationObjectcommand OFF

Response indication

Response delay time

10

10

ON

OFF

Command

Responseindication

Effective Full output pulse duration



6.7.3.2 (1-out-of-n) Check

The (1-out-of-n) check detects errors in the external circuit like short circuits, open circuitsor doubled relays which prevent the output of the command.

After receipt and successful check of an object command by the communication unit andthe output board module the following steps will be executed before final commandrelease:

• The (1-out-of-n) check on the command output monitoring board 23BA22 isactivated.

• The resistance of the interposing relay in the switched output circuit is measuredand compared with the parameterised upper and lower limits. If the resistance iswithin the limits the object command output to the selected equipment is will beactivated via the binary output board.

• The command output pulse timer is started, pulse duration is monitored, and thecommand output is deactivated by response indication or when the pulse time haselapsed.

• If the test conditions during the checks are not fulfilled the command will becancelled.

In normal applications only one command output monitoring board 23BA22 is needed forthe (1-out-of-n) check in a RTU station. In case of inserting interposing relays withdifferent resistance values, two independent check circuits can be driven by the 23BA22board, if the auxiliary test voltage is generated by a separate isolated voltage source.Concerning these conditions it is possible to include a maximum of 16 command outputmonitoring boards 23BA22 in a RTU560 remote terminal unit.



6.7.3.3 Select Before Operate Sequence (IEC 60870-4)

Before transmitting the final object in this operating mode, the central system transmits aselect command for this equipment. The communication unit in the RTU560 makes aprior check within the actual database, whether the selected channel is configured, is notactivated and no error is present.

If the tests are successfully completed, then the relevant channel is designated as beingselected, an acknowledged is generated for the selected command and transmitted to thecentral system.

To process the command and activate the command output an additional execute objectcommand has to be sent from the central system within a time span of approx. 30seconds. If the RTU560 does not receive an execute command then the selection of theobject is will be deactivated.

The following steps are executed on receipt of a valid execute object command:

• The object number is compared with the object number of the previously receivedselected command.

• Command output processing on the binary output board 23BA20 is activated andexecuted (eventually with (1-out-of-n) check).

If any of the tests has a negative result the command processing will be aborted, theobject selection will be reset and a negative acknowledge will be transmitted to the centralsystem.



6.8 Regulation Step Command Output

These commands ensure the continuous fine tolerance adjustment of plant equipment,e.g. earth-fault neutralizers. Regulation commands are pulse double commands with twoseparated output relays.

Regulation step command outputs (RCO)

• can be wired for one- and two-pole switching 23BA20

• cannot be wired with command supervision

• allows single step command only

• cannot be terminated by a response indication

6.8.1 Retrigger of Regulation Commands

The output pulse duration of a regulation command can be expanded if the samecommand is received within the output pulse time and can be sent to the output boardbefore the time has elapsed. 23BA20 starts the timer again.

An output pulse can also be shortened by a new command with DEACTIVATION flag. If aDEACTIVATION command is received the running regulation command will be stoppedimmediately.

Figure 6-11: Retrigger / stop of a regulation command

RCO RCORCORCORCOStart Retrigger RetriggerRetrigger Stop

Nominalpulse duration

Command output relay

Pulse durationwithout stop

ACT ACT ACT ACT DEACT



6.8.2 Setpoint Messages

A setpoint message is used for the output of setpoints as control variables in controlloops.

Setpoint messages can be specified as digital or analog output values. Analog setpointvalues are output via the 23AA20 analog output board and for digital setpoint values viathe 23BA20 binary output board. The RTU560 outputs a strobe pulse in addition to thesetpoint value for a the clear identification of a new value. The output value is validatedwith the strobe pulse.

The resolution of the analog setpoint message is 12 bits plus sign (with 23AA20). Digitalsetpoint message outputs are 8 or 16 bits wide.

Figure 6-12: Timing diagram setpoint message

RTU560

Analog value

Strobe

Setpoint value output

50 msSettling time

Strobe pulse

500 ms



6.9 Bitstring Output

A bitstring output (BSO) is a persistent output on a 23BA20. The following types arepossible:

• Bitstring output 1 bit (BSO1)




Bitstring output values are transparently mapped 23BA20 output channels. The outputvalue is switched on the output board and stays stable until a new value overwrites theexisting one.

The maximum length of a digital measured value is 16-bit word (= one 23BA20 board).Double word values are not supported.



6.10 RTU560 Time Synchronization

6.10.1 Time Synchronization Principle

RTU560 provides a general time base that may be synchronized in three different modesto be configured:

a) Clock Synchronization Command (CS Command)Synchronized by a (cyclic) time message from

b) CS Command & external minute pulseSynchronized by a cyclic message via a host communication interface plus anexternal minute pulse wired to the TSI (Time Synch. Input) of the RTU560

c) Radio ClockSynchronized to the GPS or DCF 77 standard (middle Europe only)

The RTU560 MASTER CMU decides during start-up - by reading the GCD configuration -what kind of time synchronization is configured. It synchronizes the RTU time to theprovided synchronization mode and acts as the Time Master.

The Time Master CMU keeps the time information for the entire RTU. It generates acontrolled 10 KHz clock and the internal TSO minute pulse which are needed by all timeslaves and the I/O master. It distributes the absolute time information in time messagetelegrams to the time slaves and the I/O master.



Figure 6-13: Principle of time synchronization in RTU560

Differences between the internal time and the received time on the time master areregulated by scaling predivider registers. This method allows a soft regulation of timedifferences and a long-time correction of crystal clock errors.

The time slave CMUs are hard coupled with the 10 kHz clock and the TSO generated bythe Time Master. They cyclically receive a time message by the Time Master via InternalCommunication and synchronize their time accordingly.

The I/O master (IOM) - on every CMU - is hard coupled with the 10 kHz clock and theTSO generated by the time master. It cyclically receives a time message by from the MPUvia the DPRAM interface and synchronizes its time accordingly.

The IOM again transmits a time synchronization instruction (broadcast) cyclically to all I/Ocontrollers (IOC) on the I/O boards via I/O bus (typically every 2 seconds). The IOCsindependently regulate deviations between their internal current time and the cyclicsynchronization instructions. All I/O boards are time synchronized by the I/O with aresolution of ± 100µs and accuracy of ± 0.3ms.

DCF 77transmitter

MPU

IOM

Logic

560RTC01or

560RTC02

I/O board

sub RTU

TSI input

Master CMUantenna

560RTCminute pulse

CS-Command

I/O Controller

Master CMU

to fastto slow

Minute circuit

Time regulation conceptfor Master CMU and I/O Controller

Minute pulse

GPSsub RTU

NCC

I/O B

us



6.10.2 Time Synchronization via the Telecontrol Line

For synchronization via the telecontrol line the central system transmits a timesynchronization instruction cyclically to the RTU560 remote terminal units (Timemessage).

Discrepancies between the time received in the time message and the local RTU560system time are continuously compensated by the central control unit. If the discrepancyis greater than a fixed predefined tolerance the RTU560 system time will be setimmediately. This control routine enables the RTU560 to correct the quartz drift of theinternal system clock.

Using this control mechanism the highly accurate time is attained in the terminal unit afterabout 1-2 hours following start-up. The long-term accuracy will reach up to ± 5 ms the TSItelegram is received regularly. According to IEC 60870-4 the time resolution correspondsto the time resolution class TR3 (<10 ms).

6.10.3 Time Synchronization by Means of DCF 77 / GPS Receiver

If one of the real time clocks 23RTC01 or 23RTC02 is configured in the RTU560 remoteterminal unit, it is the master for of time synchronization by using its minute pulse.

The real time clock DCF77, the 23RTC01 receives them from the GPS. The exact timesynchronization is carried out with the minute pulse of the 23RTC01 board or the23RTC02 board. The control mechanisms are then applied, in the same way, as forsynchronization via the telecontrol line.

The use of the 23RTC02 real time clock is limited to Central Europe because only in thisregion the signals of the long wave transmitter DCF77 can be received. For world-wideuse the 23RTC01 real time clock is available.

6.10.4 Time Synchronization by Means of an External Minute Pulse

It is also possible to synchronize the RTU560 time with an external minute pulse derivedfrom a local clock. In this case the system time has to be set by the time message and issynchronized by the external minute pulse.



6.11 PLC Development System

The RTU 560 PLC Development System is a standard programming and runtime systemfor IEC 1131-3 designed PLCs. It is based on the standard IEC 1131-3. RTU560 PLCconsists of the ProConOS runtime system and the MULTIPROG wt programming system.

ProConOS (Programmable Controller Operating System) is an efficient PLC runtimesystem for complex control applications. It has been especially designed for IEC 1131 andincludes nearly the full range of IEC 1131 features.

ProConOS is delivered in conjunction with the IEC 1131-3 programming systemMULTIPROG wt. MULTIPROG wt allows an easy programming in function block diagramFBD and instruction list IL under Windows NT.

The development procedure of a PLC program with MULTIPROG wt and the control of aprocess with ProConOS is shown in the following figures:

6.11.1 Components of the Development System

The PLC program is first programmed in MULTIPROG wt and then it is downloaded toRTU 560 where it is stored in the ProConOS memory. After this the PLC can be started.The process signals are transmitted via the local I/O or distributed router and sub RTUs toProConOS. ProConOS stores the input signals coming from the process in its memory.During the working cycle the PLC program calculates the output signals on the base ofthe input signals. The output signals are transmitted from the ProConOS memory to thelocal I/O or distributed router and sub RTUs.

The debug kernel of ProConOS offers multiple debug functions such as overwriting andforcing variables, setting breakpoints, variable and address status with power flow.Debugging is normally done while the process is running. Nevertheless programmingerrors can also be corrected when the process is stopped by setting breakpoints. Alldebug operations are executed via the MULTIPROG wt user interface.

In MULTIPROG wt the compilation process leaves the program in a PLC intermediatecode. The ProConOS compiler translates the PLC intermediate code into a machine-executable code.

MULTIPROGprogramming

ProConOScontrolling

download

signals Process

I/O

I/O

I/O



6.11.2 MULTIPROG wt

The programming system offers features for the different development phases of a PLCapplication:

• Edit

• Compile

• Debug

• Print

The programming system is based on a windows technology providing comfortablehandling using zooming scrolling, customizable toolbars, drag & drop operations, ashortcut manager and movable windows.

The system especially allows the handling of several configurations and resources withinone project, including libraries and disposes of a powerful debug system. Projects aredisplayed and can be edited using a comfortable project tree editor in order to make thecomplexity of the IEC 1131-3 structure as simple and transparent as possible. The projecttree editor allows the easy insertion and editing of program organization units (POUs),data types, libraries and configuration elements.

The programming system consists of a PLC independent kernel for programming in theIEC programming languages, IL (textual language) and FBD (graphical language). Eacheditor provides an Edit Wizard for the fast and easy insertion of pre-edited keywords,statements, operators, functions and function blocks.



Figure 6-14: PLC language function block diagram

The Edit Wizard can also be used for declaring variables and data types. The

independent kernel is completed with a specific part adapted to the RTU 560 PLC.

The new easy online handling and the 32 bit simulation offers a fast power flow debugfunctionality.

A comfortable tool for project documentation is implemented for printing the projectdocumentation either in a time-saving optimized way (using less paper) or with a stylishcustomized page layout.

6.11.3 PLC Performance Data

• 1000 Boolean instruction lines: 10 ms

• 1000 BOOL8 and INT instruction lines: 10 ms

• Shortest cycle period configurable standard: 10 ms

• Program memory capacity per POU configurableApprox. 1000 instruction need: 10 kByte RAM,

• In one POU 64 kByte program code can be executed.

• I/O image capacity configurable: Max. 1000 input signals and 1000 output signals

• Amount of user tasks: 16 tasks


7 Status and Diagnostic Information

7.1 Status and Error Report to NCC

RTU560 may report about its status and error conditions to the NCC via system events

The communication protocol used determines the way, in which the system event numberis processed into address information and which data type is used for state transmissionto the NCC.

7.2 Web-Server Diagnosis

The RTU560 Web-Server is the common maintenance and diagnosis tool of RTU560. Inthis chapter the diagnostic functions are described. For the full functionality of the Web-Server s refer to the “RTU560 Web-Server User's Guide” (1KGT 150 451).

7.2.1 System Diagnosis

For indication of the RTU560 system status system messages are provided.

Example:in a RTU with two CMUs -> a MASTER CMU in slot 3 and a SLAVE CMU in Slot 4,the following system message will be output for the CMU in slot 4 after removingand integrating the CMU in slot 3:

80.01.01, 00:00:00->CMU in rack 0, slot 4: STARTUP80.01.01, 00:00:00->CMU in rack 0, slot 3: STARTUP80.01.01, 00:00:42->CMU in rack 0, slot 4: STARTUP READY80.01.01, 00:00:45->CMU in rack 0, slot 3: STARTUP READY02.11.12, 14:36:02->RTU is synchronized02.11.12, 23:27:08->Slave CMU in rack 0, slot 3: Error80.01.01, 00:00:00->CMU in rack 0, slot 3: STARTUP02.11.12, 23:33:10->CMU in rack 0, slot 3: STARTUP READY02.11.12, 23:33:12->Slave CMU in rack 0, slot 3: OK



7.2.2 Status Information

The Web-Server's status information page gives information about the configuration ofRTU560 and the actual system event list.

The status information page shows the following points:

• A wrong measured value, the missing I/O board or an invalid value are shown as ared “iv” sign next to the I/O card.

• More information about the actual values can be displayed by selecting the inputboard. The actual values and the status of the process objects are displayed(invalid (iv) and overflow (ov)).

• If a 560ETH01 board is configured you will get more information about this board(IP- Address, Net- Address and Netmask).

• The System Event list is shown after clicking the “RTU“ symbol in the tree structure.



7.3 LEDs, Alarm and Warning

RTU560 supports signalization to report its error state. There are three different states:

OK / Warning / Alarm

7.3.1 LED Signalling

The CMU alarm and warning conditions are caused by receiving and evaluating systemmessages.

The signalling on a CMU is as follows:

OK: “ERR” – LED is offWarning: “ERR” – LED is flashing (ca. 1 Hz)Alarm: “ERR” – LED is on

7.3.2 RTU560 Alarm and Warning Relays

The error state of any CMU in RTU560 is reported to the CMU with administration modeMASTER which evaluates a RTU560 sum state.

The RTU560 error state is signalized via a Board Connection Unit (560BCU01 /02 /03)device as follows:

OK: All relays contacts offWarning: Warning relays onAlarm: Warning relays on

Alarm relays on

The MASTER CPU cyclically refreshes the watchdog register of the BCU device to enableRTU560 to activate the alarm relays in case of a MASTER CMU error after 30 s.

7.3.3 LED Indications

All RTU560 boards have LEDs to indicate errors or operating modes. These LEDs allow ageneral visual check of the overall situation of the RTU560


8 Technical Data

General Technical Data

Boards and subracksCommunication subrack 560CSR01 19" subrack

Quantity 1 or 2 max. 8 CMU boards per rack

Extension slots 23TP21 mounting plate23ET23 19" subrack

Quantity Max 7 per I/O bus segment

Boards 3HE, Euro-card format

Connectors Indirect, 48 poleType F / DIN 41612

Slots Max. 19 I/O boards per rack

RTU560 I/O busSerial interface RS-485; 19 200 Bit/s

Length Max. 1000 m in consideration of the electricalenvironment

Distance with optical fibre cable Max. approx. 2600 m

SupplyDC voltage 24 ... 60 V DC / 110 ... 220 VDC

AC voltage By AC/DC converter

Power consumption Depending on configuration

Technical Data RTU560 System Description


Communication Units

Serial Line Interface 560SLI01/02CPU processor PC 104 modules, processor type and memory

sufficient for application

MMI interface on each CPU board 9-pole MIN DRS232C / 38,4 kbit/s

Serial line interfaces 4 different interfaces2 x RS232C or RS4852 x RS232C or RS422

Ethernet Line Interface 560ETH01/02CPU processor PC 104 modules, processor type and memory

sufficient for application

MMI interface on each CPU board 9-pole MIN DRS232C / 38,4 kbit/s

Ethernet 10 Mbit/s, 10Base2

Serial line interface 2 x RS232C or RS485

Bus Communication Units

Communication Unit 560BCU01RTU560 system bus RTU560 system bus at 9-pole Sub-D connector,

femalespecific data formatmax. length 2 m

Minute impulse input

• TSI Plug-in terminal strip 2-pole isolated24 V input

Minute impulse output

• TSO Plug-in terminal strip 2-pole24 V output

Signal outputs

• Alarm-/Warning output• Relay contact

Plug-in terminal strip, 2-pole eachactive closedWarning set also with Alarm≤ 1 A / ≤ 60 V DC / ≤ 30 W

Watchdog

• Supervision time 30 sec.

RTU560 System Description Technical Data


Communication Unit 560BCU02 and 560BCU03Minute impulse input

• TSI Plug-in terminal strip 2-pole isolated24 V input

Minute impulse output

• TSO Plug-in terminal strip 2-pole24 V output

Signal outputs

• Alarm-/Warning output• Relay contact

Plug-in terminal strip, 2-pole eachactive closedWarning set also with alarm≤ 1 A / ≤ 60 V DC / ≤ 30 W

Watchdog

Supervision time 30 sec.

Power Supply Units

Power Supply Unit 560PSU01Input voltage ranges

• R0001• R0002

24 ... 60 V DC nominal110 ... 220 V DC

Voltage output U1 5 V DC


Power output 44.3 W

Output control for parallel operation

• Operation mode• Alarm monitoring

Parallel feeding of the output voltagesalarm relay in case of failure

Power Supply Unit 23NG24Input voltage ranges

• R0001• R0002

24 ... 60 V DC nominal

88 ... 253 V DC



Power output 44.3 W



Real Time Clocks

Real Time Clock 560RTC01Accuracy According to GPS

Minute pulse• MIN2• MIN1

2 x opto-coupler output 24 V DC / ≤ 20 mA1 x opto-coupler output prepared for TSY input ofCMU

Real Time Clock 560RTC02Accuracy According to DCF77

Minute pulse• MIN2• MIN1

Opto-coupler output 24 V DC / ≤ 20 mAOpto-coupler output prepared for TSY input ofCMU

Modems

Modem 23WT21CCITT standard V.23

Baud rate 75 / 600 / 1200 Bit/s

Type of modulation Frequency shift keying (FSK), according to CCITTV.23

Type of communication Point-to-point connection or multi-drop network

Serial interface RS232C

Transmit output level at 600 Ω -6 / -10 / -13 dBm by jumpers

Receive level range 0 ... -43 dBM



Modem 23WT22CCITT channels R.35 / R.37 / R.38A / V.23

Baud rate 50...2400 Bit/s

Type of modulation Frequency shift keying (FSK) with carrier switch-off for multi-drop network

Type of communication Point-to-point connection or multi-drop network

Serial interface to DTE V.24 / V.28TxD D1/103RxD D2/104RTS S2/105CTS M2/106DCD M5/109

Transmit output level at 600 Ω 0 ... –22.5 dBm

Receive level range –6 ... –58 dBm

German Telekom Certification No. A118 709F

Fibre-Optic Coupler

Fibre-Optic Coupler 23OK22Emission wave length R 0001: 820 nm

R 0002: 660 nm

Input optical power Min. -24.0 dBmMax. -10.0 dBm

Transmission rate Up to 1 Mbit/s

Assignment marking condition “Light ON“ to RX, TX: selectable

RS232C Light ON = U < -3 V

Electrical serial interfaces:• System bus• Others

RS485RS422 or RS232C each with RxD and TxD



Input/Output Boards

Analog Output board 23AA20Outputs 2

Potential isolation from one another and from power supply

Output current ± 2,5 mA± 5 mA± 10 mA± 20 mA (4...20 mA)

Load impedance max. 1000 Ω (± 2,5 mA, ± 5 mA ± 10 mA)max. 500 Ω (± 20 mA)

Resolution 11 bit + sign

Analog Input Board 23AE21Inputs 8 / differential inputs

Measuring ranges ± 2 mA, ± 5 mA, ± 10 mA, ± 20 mA, ± 40 mA, ± 2 V DC, 0 ... +20 V DC, 4 ... 20 mA

Range selection By switches and jumpers

Shunt / impedance

• 20 mA / 40 mA

• 2 mA / 5 mA / 10 mA

• 2 V / 20 V

50 Ω

150 Ω

110 kΩ

Resolution 12 bit + sign = 100%

Over-range 100 %

Permissible common mode voltage typ. ± 8 V DC

Linearity error ≤ 0.1%

Binary Output 23BA20Outputs 16, relay contacts single pole, 2 groups of 8 with

common return

Switching voltage Max. 60 V DC

Switching capacity• Resistive load• Inductive load at L/R = 30 ms

Max. 60 W40 VA (at 60 VDC)



Command Output Monitoring 23BA22Test and switching circuits 2

Measuring range of test circuits 100 ... 10000 Ω

Resolution 10 Ω

Switching voltage (DU) Max. 60 V DC

Switching capacity• Resistive load• Inductive load at L/R = 30 ms

Max. 60 W40 VA (at 60 V DC)

Command Output 23BA30Outputs 16, Relays

Relay driving 24 V DC

Switching voltage Max. 250 V AC / DC

Max. switching capacity• Resistive load 275 W (DC) 2000 VA (AC)

Binary Input 23BE21Inputs 16, optocoupler, 2 groups of 8 with common return

Input voltage 24 ... 60 V DC

Input current Typ. 2 mA / input

Binary Input 23BE30Inputs 16, two pole

Potential isolation From one another and from the intermediatecircuit

Input voltage 24 / 48 / 60 / 110 V DCaccording to rubric

Input current Typ. 2 mA / input



Cabinet with Mounting Assembly 23SC20Dimensions (HxWxD) 2200 x 800 x 600 mm

Type of protection IP 55

Configuration Max. 4 mounting panels 23TP21

Cabinet with Swing Frame 23SR20Dimensions (HxWxD) 2200 x 800 x 600 mm


Configuration Max. 6 module subracks 23ET23

Wall Housing 23WG20Dimensions (HxWxD) 760 x 600 x 350 mm


Configuration Max. 1 mounting panel 23TP21

Wall Housing 23WG22Dimensions (HxWxD) 1200 x 800 x 300 mm


Configuration Max. 2 mounting panels 23TP21

Environmental ConditionsTemperature – 10 .. +55 oC (IEC 60870-2-2, cl. C1)

Rel. humidity 5 ... 95 % (IEC 60870-2-2, cl. C1)

Air pressure 70...108 kPa, (IEC 60870-2-2, cl. C1)

Altitude (operation) Up to 3000 m, (IEC 60870-2-2, cl. C1)

Performance ClassesReliability MTBF 21969 h (IEC 60870-4, cl. R3)

Availability A 99.95 % (IEC 60870-4, cl. A3)

Data integrity class IE ≤10-10 (IEC 60870-4, cl. I2)

Time separating 5 ms within a station (IEC 60 870-4, cl. SP 3)

Analog overall accuracy Error 0.5 % (IEC 60 870-4, cl. A4)



Electrical ImmunitySurges (1.2/50 - 8/20 µs) 2 kV differential (IEC 61000-4-5, cl. 3)

2 kV common

Fast transient bursts PS = 2 kV (IEC 61000-4-4, cl. 3)I/O = 2 kV (IEC 61000-4-4, cl. 4)

Damped oscillatory waves 1 kV differential (IEC 61000-4-12, cl. 3)2.5 kV common

Conducted RF disturbances(150 kHz to 80 MHz)

10 V (IEC 61000-4-6, cl. 3)

Electrostatic discharges (ESD) 8 / 15 kV (IEC 61000-4-2, cl. 4)

Radiated electromagnetic field(80 to 1000 MHz)

10 V / m (IEC 61000-4-3, cl. 3)

Electrical EmissionRF disturbance voltages 0,15 to 30 MHz (EN 55022, cl. A and B)

RF radiated fields 30 to 1000 MHz (EN 55022, cl. A)



ABB Utility Automation GmbHWabenbau UTA/NMXKallstadter Str. 168309 Mannheim/GermanyTelephon +49 (0)621 381 7592Telefax +49 (0)621 381 7622

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