IT8000-AC-W-Ex2/22 IT8000-DC-W-Ex2/22 IT8000-AC-E-Ex2/22...

Technical Manual

IT8000-AC-W-Ex2/22IT8000-DC-W-Ex2/22IT8000-AC-E-Ex2/22IT8000-DC-E-Ex2/22

Freely Programmable Weighing Terminal

For Installation In Ex Zone 2 / 22

II 3G Ex ic nA IIC T4 Gc

II 3D Ex ic tc IIIB T50°C Dc IP54

or II 3D Ex ic tc IIIC T50°C Dc IP65

August 2013

ST.2309.1327

Rev. 4

© SysTec Systemtechnik und Industrieautomation GmbH, Bergheim, Germany

2 Technical Manual IT8000-**-*-Ex2/22 Rev. 4

Technical Manual IT8000-**-*-Ex2/22 Rev. 4 3

Technical Manual IT8000-**-*-Ex2/22

Date: August 30, 2013

File: IT8000_EX222_THE.DOC

Operating System: RTP 7.1 or higher


Published By:

© SysTec Systemtechnik und Industrieautomation GmbH, Bergheim, Germany

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmittedin any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior writtenpermission of SysTec GmbH.

Terms and product names mentioned in this publication are trademarks, registered trademarks orservice marks of their respective owners. Use of a term should not be regarded as affecting the validityof any trademark, registered trademark or service mark.

EPSON ESC/P® is a registered trademark of the SEIKO EPSON Corporation.TOLEDO® is a registered trademark of Mettler-Toledo Inc.

Please Note:

While every precaution has been taken in the preparation of this manual, SysTec GmbH assumes noresponsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use ofthe information contained herein.

The publisher is grateful for any information and/or advice that may contribute to correct errors or omissionsin following editions.


Contents

1 Introduction ......................................................................................................................... 7

1.1 About This Manual....................................................................................................... 7

1.2 Safety Symbols Used In This Manual .............................................................................. 7

1.3 Safety Advice ............................................................................................................. 7

1.4 Declaration Of Conformity............................................................................................. 9

2 Marking............................................................................................................................. 10

3 System Description............................................................................................................. 11

3.1 General .................................................................................................................... 11

3.2 Basic Units And Options ............................................................................................. 11

3.3 Housing.................................................................................................................... 12

3.4 Main Board CPU8000................................................................................................. 13

4 Intended Use ..................................................................................................................... 14

5 Assembly .......................................................................................................................... 15

6 Installation......................................................................................................................... 16

6.1 General .................................................................................................................... 16

6.2 Equipotential Bonding ................................................................................................. 16

6.3 Shielding .................................................................................................................. 16

6.4 Connection Of Cables................................................................................................. 17

7 Installation Of External Connections With Type Of Protection 'Ex-nA' ........................................ 18

7.1 Connection Of Power Supply To IT8000-AC-*-Ex2/22 .................................................... 18

7.2 Connection Of Power Supply To IT8000-DC-*-Ex2/22 .................................................... 19

7.3 Connection Of Analog Scale To ADM / ADC .................................................................. 22

7.4 Connection Of IDNet Scale Base To IDN........................................................................ 25

7.5 Connection Of Digital Scale Bases With RS485 Interface To DWM.................................... 27

7.6 Connection Of Serial Interfaces SIM ............................................................................. 30

7.7 Connection Of Parallel I/Os PIM ................................................................................... 34

7.8 Connection Of Fieldbus Module FBM ............................................................................ 37

7.9 Connection Of Profibus DP Module PCM ....................................................................... 38

7.10 Connection Of Ethernet Module ECM .......................................................................... 40

7.11 Connection Of 15-Bit Analog Output DAU15 ............................................................... 42

8 Commissioning................................................................................................................... 44

8.1 General .................................................................................................................... 44

9 Installation Examples........................................................................................................... 45

9.1 Installation Example IT8000-AC-*-Ex2/22 ..................................................................... 45

9.2 Installation Example IT8000-DC-*-Ex2/22 ..................................................................... 46

9.3 Installation Example IT8000-DC-*-Ex2/22 With Akku-Box................................................ 47

10 Service Mode ................................................................................................................... 48

10.1 General................................................................................................................... 48

10.2 Display And Keyboard .............................................................................................. 49

10.3 Operator Prompting .................................................................................................. 50

10.4 Overview................................................................................................................ 51

10.5 Interface Configuration ............................................................................................. 52

10.6 Header Ident Data .................................................................................................... 56

10.7 Detail Ident Data...................................................................................................... 57

10.8 Application Setup..................................................................................................... 58

10.9 RAM Data Backup.................................................................................................... 61


10.10 Hardware Test .......................................................................................................62

10.11 S5 Data Block........................................................................................................68

11 Transport, Maintenance And Cleaning ..................................................................................69

11.1 Transport ................................................................................................................69

11.2 Maintenance............................................................................................................69

11.3 Replacement Of Fuse (Only IT8000-DC-*-Ex2/22).........................................................69

11.4 Cleaning..................................................................................................................70

11.5 Security Check.........................................................................................................70

11.6 Functional Test ........................................................................................................70

11.7 Repair .....................................................................................................................70

11.8 De-Installation..........................................................................................................70

11.9 Disposal ..................................................................................................................70

12 Trouble Shooting...............................................................................................................71

13 Technical Data..................................................................................................................72

13.1 Basic Units ..............................................................................................................72

13.2 Options...................................................................................................................73

13.3 Ex-Relevant Electrical Data For Type Of Protection 'Ex-nA'.............................................74

14 Annex .............................................................................................................................77

14.1 ACK/NAK-Protocol....................................................................................................77

14.2 Exchange Of EPROMs ...............................................................................................78

14.3 Replacing The Battery ...............................................................................................81

14.4 Combination Of Options ............................................................................................83

15 Dimensions ......................................................................................................................84


1 Introduction

1.1 About This ManualThis manual contains information and Technical Data for the use, the installation and the operation ofthe weighing terminal IT8000-AC-W-Ex2/22, IT8000-AC-E-Ex2/22, IT8000-DC-W-Ex2/22 and IT8000-DC-E-Ex2/22.

Information applicable to all versions refers to 'IT8000-Ex2/22'. Specific information is marked with thefull designation of the respective version, e.g. IT8000-DC-W-Ex2/22.

The weighing terminal must only be operated by trained personnel.

In addition to this manual further information is provided in the following documentation:

ADM / DUAL-ADM / ADM8000-Exi Calibration Manual, Order-No.: ST.2309.0688

MultiRange Calibration Manual, Order-No.: ST.2309.0057

Revere SLC, Calibration Manual, Order-No.: ST.2309.0362

HBM C16i, Calibration Manual, Order-No.: ST.2309.0248

1.2 Safety Symbols Used In This ManualSafety relevant information is shown with corresponding symbols as follows:

Ex

W A R N I N GFailure to observe this precaution could result in serious injuries or fatal accidents due toignition of an explosive atmosphere. Please make absolutely sure that these precautions areobserved in order to ensure safe operation of the equipment.

W A R N I N GFailure to observe this precaution could result in serious injuries or fatal accidents. Please makeabsolutely sure that these precautions are observed in order to ensure safe operation of theequipment.

CAUTIONFailure to observe this precaution could result in damage to or destruction of the equipment orbodily harm! Please make absolutely sure that these precautions are observed in order to ensuresafe operation of the equipment.

Note: This indicates an advice for the designated use of the equipment and/or additional information toavoid inappropriate handling.

1.3 Safety Advice

Ex

W A R N I N GBefore opening the housing make absolutely sure that all power sources to this instrument aredisconnected and that no potentially explosive atmosphere can be present at any time!

The de-energized state is reached by disconnecting the supply voltages to the instrument andto all external devices connected to the interfaces of the weighing terminal.

Ex

W A R N I N GExercise utmost care when making checks, tests and adjustments that can actuate movableparts such as feeding devices, gates, flaps, conveyors, etc. Make absolutely sure that nobodyis within reach of movable parts.


Ex

W A R N I N GWhen this unit is included as a component part of a system, the resulting system design mustbe reviewed by qualified personnel who are familiar with the construction and operation of allindividual components in the system and the potential hazards involved.

Ex

W A R N I N GFor installation, service and operation of the unit, the ATEX directive as well as all locallyapplicable regulations for safety and the prevention of accidents must be observed!

Ex

W A R N I N GInput voltage of the instrument must comply with local mains supply!

Ex

W A R N I N GThis module and its associated equipment must only be installed, adjusted and maintained byqualified personnel authorized by SysTec GmbH!

Ex

W A R N I N GConnection of peripheral devices to IT8000-Ex2/22 is made in compliance with Ex type ofprotection 'Ex-nA'. The values of connected load must be observed. Connected peripheraldevices installed in hazardous area must have appropriate Ex protection.

Ex

W A R N I N GWhen the instrument is permanently connected to the power supply, an easily accessibleseparator must be included in the supply circuit! It must either be located in safe area or -ifinstalled in Ex area- have appropriate Ex protection for the place of installation.

Ex

W A R N I N GThe weighing terminal must not be installed in areas where electrostatic charging is possiblewhich may produce spark discharges, brush discharges or propagating brush discharges at thefront panel.Comment: According to common knowledge, the use of the equipment and the cleaning with adamp cloth do not produce such a high surface charge density. However, the front panel mustnot be wiped with a dry cloth!

W A R N I N GRisk of electrical shock! When operating electrical devices, parts of this devices are connectedto dangerously high voltages. Inappropriate use of such devices may lead to serious bodilyinjuries or substantial damages to property.

W A R N I N GThe power supply unit of the weighing terminal provides SELV voltages in accordance with EN60950. Make sure that any peripheral device connected to the weighing terminal containing itsown power supply also uses SELV voltages!

Ex

W A R N I N GThis weighing terminal must not be used in Ex-Zone 0, 1, 20 and 21.

It is the sole responsibility of the employer / operating company to classify the area ofinstallation (zone, group, temperature class). To that effect, the assistance of the TechnicalSupervisory Service or any other technical authority may be utilized!

W A R N I N GThe device uses the short-circuit / overcurrent protection of the on-site mains supply.


1.4 Declaration Of Conformity


2 Marking

Systec Systemtechnik und Industrieautomation GmbH

Ludwig-Erhard-Straße 6Manufacturer

50129 Bergheim-Glessen

IT8000-AC-W-Ex2/22

IT8000-AC-E-Ex2/22

IT8000-DC-W-Ex2/22Designation

IT8000-DC-E-Ex2/22

Serial-No. Ex yy nnnn (yy=year of construction / nnnn=consecutive number)

Range of ambient temperature –10°C to +40°C

Ex classification

II 3G Ex ic nA IIC T4 Gc

II 3D Ex ic tc IIIB T50°C Dc IP54 or

II 3D Ex ic tc IIIC T50°C Dc IP65

CE marking

Type examination certificate TÜV 11 ATEX 7618 X

Service Only by qualified service personnel authorized by SysTec GmbH


3 System Description

3.1 GeneralIT8000Ex is a universal weighing terminal for use in a variety of applications such as data logging, datacapturing and set point control, suitable for installation in Ex zones 2 and 22.

It connects to weighing platforms with analog or digital force transducers. The analog version supportsthe connection of up to two understructures with a total of up to 16 strain gauge loadcells with animpedance of 350 each in any combination. By means of an external extension module it is possibleto connect up to 6 additional understructures.

Alternatively, understructures with digital force transducers can be connected.

With its modular concept, the IT8000-Ex2/22 features in its basic configuration three serial interfacesas well as four parallel opto-isolated inputs and four opto-isolated outputs for external devices. Formore complex applications several interface extension modules are available, for a fourth serialinterface (FBM), Profibus DP (PCM) or Ethernet communication ECM).

The variable I/O design provides up to 64 digital inputs and 64 digital outputs, plus analog inputs /outputs.

The IT8000-Ex2/22 is freely programmable, operation and program sequence can be easily adapted tothe specific application. Comprehensive standard software is available for standard applications such asfilling, batching, checkweighing, data logging, truck weighing, etc. The design of custom-specificprograms is possible with the RTG program generator which provides the tools for simple and efficientprogramming.

3.2 Basic Units And OptionsIT8000-Ex2/22 is available in 4 basic versions:

Type Housing Description Article-No.

IT8000-AC-W-Ex2/22 Wall-mount/desk-top

Basc unit for wall-mount / desk-top installationwith 2.5m line cord with free ends

to connect to 110 - 240 VAC

X8SYS001

IT8000-AC-E-Ex2/22 Panel-mount Basic unit for panel-mount installationwith 2.5m line cord with free ends

to connect to 110 - 240 VAC

X8SYS011

IT8000-DC-W-Ex2/22 Wall-mount/desk-top

Basc unit for wall-mount / desk-top installationwith screw terminals

to connect to 12 – 30 VDC

X8SYS005X8SYS006*

IT8000-DC-E-Ex2/22 Panel-mount Basic unit for panel-mount installationwith screw terminals

to connect to 12 – 30 VDC

X8SYS015X8SYS016*

* The versions X8SYS006 and X8SYS016 feature the main module CPU8000-NTP-Ex2/22 thatprovides low-battery indication for battery operation.


The following modules are available as options:

Option Description Article-No.

ADM Plug-on weighing module for connection of analog loadcells 13OPT100

ADC Plug-on weighing module for connection of analog loadcells 17OPT100

IDN Plug-on module to connect one digital IDNet platform 17OPT101

DWM Plug-on module to connect one digital platform with RS485 interface 17OPT103

SIM-RS232 Plug-on module with serial RS232 interface 10OPT220

SIM-20mA Plug-on module with serial 20mA interface 10OPT221

SIM-RS485.4 Plug-on module with serial RS485 4-wire interface 10OPT222

SIM-RS485.2 Plug-on module with serial RS485 2-wire interface 10OPT225

SIM-RS485.Opto Plug-on module with opto-isolated serial RS485 interface 10OPT230

DAU15 Plug-on module with analog 0/2-10V or 0/4-20mA output 10OPT231

PIM Plug-on module with two digital inputs/outputs 10OPT300

FBM Plug-on module with socket for fourth serial interface 11OPT301

PCM Plug-on module with Profibus-DP interface 17OPT400

ECM Plug-on module with Ethernet interface(11OPT304-5/10 incl. 5m/10m Ethernet-Kabel)

11OPT304

3V battery 3V lithium battery Varta CR ½ AA 96ZUB002

3.3 HousingIT8000-Ex2/22 is incorporated in a stainless steel housing with cable glands to connect cables toperipheral devices. It is available in two versions:

The housing for desk-top / wall-mount installation (IT8000-**-W-Ex2/22) is protected to IP65.

The housing for panel-mount installation (IT8000-**-E-Ex2/22) is inserted in a suitable cutout of aswitch cabinet and fixed from the rear with 8 mounting brackets. When installed accordingly, the frontof the terminal -in combination with the circumferential gasket between terminal and switch cabinet- isprotected to IP65. When installed in Ex zone 2 (as per II 3G Ex ic nA IIC T4 Gc) and Ex zone 22 withnon-conductive dust (as per II 3D Ex ic tc IIIB T50°C Dc IP54) the surrounding housing must beprotected to IP54 or better.

When installed in Ex zone 22 with conductive dust (as per II 3D Ex ic tc IIIC T50°C Dc IP65) thesurrounding housing must be protected to IP65 or better. The surrounding housing (e.g. switch cabinet)must conform to the requirements of EN60079-0 section 26.4.

Ex

The housings must be included in the equipotential bonding of the installation.

See section 'Dimensions' for space requirements.


3.4 Main Board CPU8000The main board contains the Central Processing Unit of the industrial weighing terminal IT8000-Ex2/22. It includes the 32bit/16MHz microprocessor 68HC000, 1 MByte battery-backed data,128 kByte application memory and a battery backed realtime clock..It is available in three different versions:

Main board Description Used for

CPU8000-230V-Ex2/22 CPU8000 with 110-240 VAC PSU IT8000-AC-*-Ex2/22Article-No. X8SYS0x1

CPU8000-24VDC-Ex2/22 CPU8000 with 12–30 VDC PSU IT8000-DC-*-Ex2/22Article-No. X8SYS0x5

CPU8000-NTP-Ex2/22 CPU8000 with 12-30 VDC PSUand low-bat detection

IT8000-DC-*-Ex2/22Article-No. X8SYS0x6

Two sockets are provide to insert A/D converters (ADM or ADC) for the connection to understructureswith analog loadcells. Three serial interfaces can be individually configured by means of plug-onmodules (SIM) as RS232, RS485 or 20mA interfaces. Two additional slots can be fitted with plug-onmodules for parallel I/Os (PIM) which contain 2 inputs and two outputs each. For the connection to aninterface expansion board (FBM or PCM) appropriate connectors are available.

Also included on the main board is the wide range power supply, alternatively in AC or DC version.

For information on how to change memory components refer to section 'Changing of EPROMs' in theannex of this manual.

Position of components on the CPU8000 main board

Socket 2 Connector X2 Socket 1 Terminal KL3/KL2/KL1 Terminal KL4/KL5 Connection AC orfor ADM2 (MFII Keyboard) for ADM1 (SIM3/SIM2/SIM1) (PIM2/PIM1) DC power supply

Lithium Connector X7 Connector X8-X11 Connector X1battery (Display) (Interface expansion) Keyboard


4 Intended Use

In compliance with RL 94/9/EG (ATEX 95) appendix I, the weighing terminal IT8000-Ex2/22 isan apparatus of group II category 3G, that following RL 99/92/EG (ATEX 137), can be used inzone 2, as well as in gas groups IIA, IIB and IIC, which are at risk of explosion throughcombustible substances of temperature classes T1 to T4. The following instructions on theinstallation of the IT8000-**-E-Ex2/22 in a surrounding housing must be observed.

IT8000-Ex2/22 is also an apparatus of group II category 3D, that following RL 99/92/EG (ATEX137) can be used in zone 22 (dust), the maximum surface temperature is 50°C. The followinginstructions on the installation of the IT8000-**-E-Ex2/22 in a surrounding housing must beobserved.

Applicable only to IT8000-**-E-Ex2/22: The housing for panel-mount installation is inserted in asuitable cutout of a switch cabinet and fixed from the rear with 8 mounting brackets. Ifinstalled accordingly, the front of the terminal -in combination with the circumferential gasketbetween terminal and switch cabinet- is protected to IP65. When installed in Ex zone 2 (as perII 3G Ex ic nA IIC T4 Gc) and Ex zone 22 with non-conductive dust (as per II 3D Ex ic tc IIIBT50°C Dc IP54) the surrounding housing must be protected to IP54 or better. When installed inEx zone 22 with conductive dust (as per II 3D Ex ic tc IIIC T50°C Dc IP65) the surroundinghousing must be protected to IP65 or better. The surrounding housing (e.g. switch cabinet)must conform to the requirements of EN60079-0 section 26.4.

The weighing terminal must not be installed in areas where electrostatic charging is possiblewhich may produce spark discharges, brush discharges or propagating brush discharges at thefront panel.

All external connections are designed for type of protection Ex 'nA'. The connection valuesshown in chapter 'Installation of external connections with type of protection Ex-nA' must beobserved.

Ex

When installed in hazardous area, all peripheral devices connected to IT8000-Ex2/22 must haveappropriate Ex protection.

The metal housing of the IT8000-Ex2/22 terminal must be integrated at the PA stud into theequipotential bonding system of the installation. Use serrated washers.

The permissible range of ambient temerature is –10°C to +40°C.When installing IT8000-**-E-Ex2/22 in a switch cabinet (panel-mount version), thistemperature range also apllies to the inside the switch cabinet.

Furthermore, for use and installation all requirements as per EN 60079-14 must be observed.

Any other but the intended use of the equipment, modifications and extensions must not bemade without the explicit approval of the manufacturer and is deemed not to be intended. Partof the intended use is observance of this Technical Manual and the adherence to inspection andmaintenance instructions and intervals. The manufacturer does not assume any liabilitywhatsoever for damages resulting from non-intended use. Any risk resulting from non-intendeduse is solely borne by the user.

The weighing terminal and all connected components must be integrated into a common sytemof equipotential bonding.

Protective covers or other parts covering the housing completely or in part must not be used.

Ex

The housing must be protected against permanent exposure to ultraviolet radiation.


5 Assembly

Ex

It must be made sure that installation of the weighing terminal is only carried out when allpower to the instrument is disconnected and no potentially explosive atmosphere is present.


Installation must be made in compliance with the generally accepted rules of technology. In particularfor all work carried out on electrical installations the specific safety regulations must be observed.

The weighing terminal may be installed in Ex zone 2 or 22. The terminal must not be damaged. Theplace of installation must be clean.

The IT8000-**-W-Ex2/22 (wall-mount / desk-top version) has mounting brackets for wall or table-topinstallation. They must be fixed with suitable screws which are not part of the supply. All screws mustbe tightened securely.

The IT8000-**-E-Ex2/22 (panel-mount version) has screw clamps to fix the terminal in the cutout ofthe switch cabinet. To connect the bonding conductor, an M5 stud is provided at the rear or bottom ofthe housing. Use serrated washers to prevent the nuts from becoming loose.

The permissible temperature range is –10°C to +40°C at a max. of 95% relative humidity (noncondensing). Direct exposure to ultraviolet radiation must be avoided.

For wall-mount installation the unit can be fixed at the wall first and then the cables can be installedwith the front lid open.

Before the device is put into operation, the housing must be closed and tightened securely with thehexagonal srews provided. The screws must be tightened with a torque of 1.1Nm.


6 Installation

6.1 General

This apparatus must only be installed by qualified personnel who are familiar with all regulationsapplicable to the different types of protection and the methods of installation, as well as thegeneral principles for the classification of zones. This level of competence must correspond tothe work that is to be carried out and appropriate training should be provided on a regular basis.

When the weighing terminal is to be installed in Ex zone 2 / 22 the regulations as perEN 60079-14 must be adhered to.


It must be made sure during installation of the weighing terminal that all power to theinstrument is disconnected and that no potentially explosive atmosphere can be present at anytime.

Installation must be carried out in compliance with applicable DIN/VDE regulations. Also, allcountry-specific regulations must be observed. Connection of supply volatage must be made incompliance with VDE 0100 and VDE 0160.

Ex

When the instrument is permanently connected to the power supply, an easily accessibleseparator must be included in the supply circuit! It must either be located in safe area or -ifinstalled in Ex area- have appropriate Ex protection for the place of installation.

All cables are led into the housing through Ex cable glands. Strip cable jacket only as long asrequired for the wires to reach the screw terminals. Use wire end ferrules with plastic collar onstranded cable and avoid protruding wires. When assembling the cable glands make sure thatshield of cable is connected inside the cable gland. Observe instructions in section 'Connectionof cables'.

Ex

Before the device is put into operation, make sure that the housing is closed and tightenedsecurely with all hexagonal srews provided. The screws must be tightened with a torque of1.1Nm.

6.2 Equipotential Bonding

Ex

In compliance with EN 60079-14 the apparatus must be integrated into the equipotentialbonding system of the installation. The bonding conductor must have a cross section of min.4mm². To connect the bonding conductor, an M5 stud with serrated washer is provided at therear or bottom of the housing.

6.3 Shielding

Ex

Use only shielded connection cables. The shield must be connected at both sides in the cableglands. It is mandatory to additionally install equipotential bonding as per EN60079-14paragraph 12.2.2.3 exception b). The bonding conductor must have a cross section of min.4mm².


6.4 Connection Of CablesAll cables are led into the housing through cable glands.

Cable jacket Shield Compression nut Plastic insert Bushing Counter nut

Cable connection via cable glands:

1. Slide compression nut over cable jacket;

2. Slide plastic insert (retainer) over cable jacket until inner end is aligned with cut end of jacket;

3. Unravel shield, bend over retainer and push into retaining comb. Cut wires of shield to length ofcomb, avoid protruding wires;

4. Insert retainer with cable into bushing;

5. Screw compression nut onto bushing and use wrench to tighten securely.

Permissible diameter of cables and torque for cable glands:

Wrench size ofcounter nut

Permissiblediameter of cable

Torque to tightencounter nut

17 mm 4 – 8 mm 6 Nm

20 mm 5 – 10 mm 5 Nm

22 mm 6 – 12 mm 8 Nm

Contact SysTec service for different cable diameters.

Ex

Use crimped wire end ferrules with plastic collar on stranded cable and avoid protruding wires.

Ex

All connecting cables must be firmly installed to avoid tension load at the cable glands and tocomply with the requirements of EN60079-14 paragraph 9.3.1.


7 Installation Of External Connections With Type OfProtection 'Ex-nA'

7.1 Connection Of Power Supply To IT8000-AC-*-Ex2/22IT8000-AC-*-Ex2/22 (article-No. X8SYS0x1) is supplied with a line cord with free ends to connect thesupply voltage.The power supply unit is soldered to the main board CPU8000-230V-Ex2/22. The linecord is connected to screw terminal KL6 of the CPU8000-230V-Ex2/22.

The power supply has a fused input (2A T). The fuse cannot be replaced.

Terminal KL6110-240 VAC

PE L1 N

Ex

The connection of the supply voltage at the free cable end of the weighing terminalIT8000-AC-*-Ex2/22 is designed for type of protection Ex-nA. The listed nominal connectionvalues must be adhered to.

For the connection of the line cord in hazardous area a suitable method must be chosen incompliance with EN60079-0 (e.g. Ex-e, Ex-d). A suitable protection against overload and shortcircuit in compliance with VDE regulations must be provided.

Nominal voltage UN 110 - 240VAC –15%/+10%

Nominal current IN 300 mA

Frequency range 47 - 63 Hz

Type of protection Ex-nA

Color code free end of cable

brown L

blue N

green/yellow PE


7.2 Connection Of Power Supply To IT8000-DC-*-Ex2/22The weighing terminal IT8000-DC-*-Ex2/22 is intended for power supply with 12 – 30 VDC. Theconnecting terminal KL6 is located on the main board CPU8000-24VDC (for article-No. X8SYS0x5)and on the CPU8000-NTP-Ex2/22 (for article-No. X8SYS0x6).

A diode is provided as protection against reverse polarity. The power supply of the CPU8000-24VDC-Ex2/22 has a fused input (2A T). For replacing the fuse see chapter 'Replacing the fuse'.

Terminal KL612-30 VDC

PE L1 N

Ex

The connection of the supply voltage to the weighing terminal IT8000-DC-*-Ex2/22 isdesigned for type of protection Ex-nA. The listed nominal connection values must be adheredto.

For the connection of the supply cable in hazardous area a suitable method must be chosen incompliance with EN60079-0 (e.g. Ex-e, Ex-d). A suitable protection against overload and shortcircuit in compliance with VDE regulations must be provided.

Nominal voltage UN: 12 – 30 VDC +10% / –15%

Nominal current IN: 1.5 – 0.5 A

Cross section (rigid wires): 0.75 – 1.5 mm2

Cross section (flexible wires with insolated wire end ferrule): 0.75 – 1.5 mm2

Length of stripped insolation: 6 mm

Fastening torque screw terminal: 0.5 – 06 Nm

Ex type of protection: Ex-nA

Terminal assignment CPU8000 terminal KL6

+ V Supply voltage (+)

0 V Supply voltage (—)


7.2.1 Connecting Cable With Ex Plug For Battery Operation

The weighing terminal IT8000-DC-*-Ex2/22 (article-No. X8SYS0x6) with CPU8000-NTP-Ex2/22 issuitable for connection to an external rechargeable battery box. To this effect the instrument issupplied with an assembled connecting cable with ex plug. The following notes must absolutely beobserved:

Absolutely adhere to operating instructions 'Ex-connector mini Clix Reihe 8591'.

Components must have identical coding to avoid damages to connector/socket.

The supply cable to the plug-and-socket connection must be firmly installed and sufficientyprotected against mechanical damage. Cables must comply with the thermic and mechanicalrequirements of the location of installation.

When connectors are not connected correctly, protection against risk of explosion is no longerwarranted. Strictly follow the instructions!

After separating, immediately cover components of the plug-and-socket connection conductingvoltage with protective cap!

Ex

For the supply of the weighing terminal the following rechargeable batteries can be used:

1) AkkuBox Ex; 12VDC for use in Ex zone 2 and 22; article-No. E3AKK001

2) Equivalent 12V rechargeable batteries may be used. When a rechargeable battery is usedin hazardous area a suitable type of protection must be provided. Compliance with therequirements of EN 60079-14 is mandatory.

Observe the operating instructions for the rechargeable battery.

7.2.2 Coding And Pin Assignment Ex Connectors

No. ofpins

Coding Female connector / sockete.g. AkkuBox Ex

Male connector

IT8000-DC-*-Ex2/22(article-No. X8SYS0x6)

2 + PE 12 h

Assignment

Pin Voltage

1 12VDC

2 not used

3 GND

PE Shield


7.2.3 Instructions For Connecting And Separating Coupler

Before plugging in check connectors for any damages.

Align male/female connectors along groove (1).

Push components together up to stop position (2).

Twist right approx. 30° up to stop (3).

Push connectors together completely (4).

Fasten coupling ring tightly (5). This procedure provides for mechanical connection, electricalcontact and IP protection.

Disconnect in reverse order.


7.3 Connection Of Analog Scale To ADM / ADCThe ADM or ADC provides connection for one weighing platform with strain gauge loadcell(s). Asecond weighing platform can be connected using a second ADM or ADC board. The modules areplugged into sockets ADC1 / ADC2 on the CPU8000 main board.

ADM2 ADM1 Jumper W1

Ex

The connection is designed compliant to type of protection 'Ex-nA'. If the loadcell is to beinstalled in hazardous area, compliance with the applicable Ex regulations is mandatory. Thefollowing connection values must be observed:

ADM/ADCTerminal KL1

Signal Description Nominal value

1 +Excitation Output 5 V / 240 mA

2 – Excitation Output 5 V / 240 mA

3 +Sense Input 5 V / 1 mA

4 – Sense Input 5 V / 1 mA

5 +Signal Input 5 V / 1 mA

6 – Signal Input 5 V / 1 mA

Cross section rigid wire: 0.25 – 1.5 mm2

Cross section flexible wirewith insolated wire end ferrule:

0.25 – 1.5 mm2


Fastening torque screw terminal: 0.5 – 0.6 Nm



Connection of weighing platforms and loadcells is to be made as specified below:

Max. 16 strain gauge loadcells 350 each

Overall impedance 21.5 ...4500

W&M approved resolution of 6000d at a max. preload of 80%, internal resolution 524,000d

Smallest permissible input signal for approved applications: 0.33 µV / e

Update rate 50 updates / second

Loadcell excitation: 5 V ±5%, gated power supply (ADM), DC (ADC)

Connection in 4- or 6-wire mode.

Principal schematics of 6-wire and 4-wire strain gauge loadcell:

6-wire loadcell 4-wire loadcell

Connection of 6-wire loadcell to ADM or ADC:

Terminal Assignment

1 +Excitation

2 – Excitation

3 +Sense

4 – Sense

5 +Signal

6 – Signal

Connection of 4-wire loadcell to ADM or ADC:

To connect loadcells without sense lines (4-wire connection), two jump leads must be connected atterminal row KL1 between terminal 1 and 3, and between terminal 2 and 4.

Terminal Assignment

1 +Excitation

2 – Excitation

3

4

5 +Signal

6 – Signal


7.3.1 Connection Cables For Analog Weighing Platforms

For the installation of connection cables for analog weighing platforms please follow the recommen-dations listed below:

Only use suitable loadcell cable, (e.g. SysTec order-No. 10KAB214 (3 x 2 x 0,75mm², shielded)Nominal voltage of cable ±250V.Unsuitable loadcell cable may affect accuracy.

The shield of the loadcell cable must be connected all around the cable in the cable gland of theweighing terminal (see also chapter 'Installation' / 'Connection Of Cables'). Loadcells, platformsjunction boxes and the weighing terminal must be integrated into the equipotential bonding ofthe sytem. Depending on the situation on site this may require the installation of a separate earthlead of appropriate diameter (e.g. 16mm²) in parallel to the loadcell cable. If the junction box isinstalled in hazardous area it must be designed with appropriate type of protection.

To extend the loadcell cable only use metal junction boxes and connect shield of cable on bothsides inside cable gland.

Distance between loadcell cables and power lines min. 0.5m. Loadcell cables to be installed ingrounded metal conduits, metal hoses or metal cable trays.

Maximum length of connection cable between weighing platform and weighing terminal: 200m.

If tension load is applied to loadcells instead of compression load, connection for +Signaland –Signal must be transposed.

7.3.2 Sealing Of Calibration Parameters

By means of the jumper W1 the calibration parameters stored in EEPROM can be protected againstunauthorized modifications:

ADM in IT8000-Ex2/22 Calibration parametersprotected

Calibration parametersaccessible

ADC im IT8000-Ex2/22 Calibration parametersprotected


If required for W&M approved and stamped systems, the position of the jumper W1 can be sealed withthread and lead seal:

For a description of the calibration mode refer to the 'Calibration Manual IT8000 ADM and ADC'.


7.4 Connection Of IDNet Scale Base To IDNThe IDN module (IDNet interface module) permits the connection of one Mettler-Toledo understructurewith IDNet interface. It supports IDNet understructures which operate on 12VDC power supply (e.g.PikBrick). Understructures which require an additional 32VDC supply cannot be connected.

Only one IDN interface (for 1 understructure) may be installed, which is either inserted in socket ADC1(if the only scale is an understructure with IDNet interface) or ADC2 (for a mixed setup with digital andanalog scale base). In this case (one ADM/ADC and one IDN) the ADM board must always be installedin the first socket ADC1, the IDN is then installed in socket ADC2.

In a mixed setup, one analog scale base with up to 8 x 350 loadcells can be connected to theADM/ADC interface.

The FBM or ECM module must not be used when an IDN board is in place, because the internalcommunication with the IDN module is made via COM4, i.e. this interface is not available for thefieldbus or Ethernet interface or an additional SIM module.

The IDN module provides a maximum of 12VDC / 150mA as supply for the IDNet scale base.

Ex

W A R N I N GWhen an IDN module is installed the the auxiliary voltage (10VDC on CPU8000, terminal KL4)must not be used.

IDN interface module

IDN

Ex

The connection is designed compliant to type of protection 'Ex-nA'. If the force transducer is tobe installaed in hazardous area, compliance with the applicable Ex regulations is mandatory.The following connection values must be observed:


IDNTerminal KL1

Signal Description Nominal value

1 TxD— — Transmit line 20 mA CL 12 V / 20 mA

2 TxD+ + Transmit line 20 mA CL 12 V / 20 mA

3 RxD— — Receive line 20 mA CL 12 V / 20 mA

4 RxD+ + Receive line 20 mA CL 12 V / 20 mA

5 0 V 0 (12 V) Supply voltage 0 (12 V) / 150 mA

6 +12 V (150mA) +12V Supply voltage 12 V / 150 mA

For a description of the calibration mode refer to theMultiRange Calibration Manual, Order-No.: ST.2309.0057


Cross section flexible wire with insolated wire end ferrule: 0.25 – 1.5 mm2




7.4.1 Connection Cables For IDNet Scale Bases

Unsuitable cable may cause loss of data. For the installation of connection cables for IDNet scale basesplease note

Only use suitable connecting cable (data cable), e.g. 6 x 0.25 mm² shielded, SysTec order-No.10KAB216, or data cable supplied by the manufacturer of the scale base.

Nominal Voltage of cable 250V.

Connect shield of cable at both sides, at cable gland of weighing terminal and at understructureand/or extension cable. If a difference between potentials is experienced, an appropriate potentialequalization must be installed.

Distance between loadcell cables and power lines: 0.5m. Loadcell cables to be installed ingrounded metal conduits, metal hoses or metal cable trays.

Maximum length of connection cable between weighing platform and weighing terminal: 15m.


7.5 Connection Of Digital Scale Bases With RS485 Interface To DWMThe DWM module (Digital Weighing Module) permits the connection of digital force transducers(loadcells) operating on 12VDC power supply and communicating with the IT8000-Ex2/22 via RS4852-wire or 4-wire network.

Scale bases and loadcells are supported as follows:

Sartorius series IS weighing platforms

Digital HBM series C16i loadcells

Revere series SLC loadcells.

Calibration data can be stored powerfail safe in a serial EEPROM on the DWM module. By means of thejumper W1 these data can be protected against unauthorized modification.

Only one DWM interface (for 1 understructure) may be installed, which is either inserted in socketADC1 (if the only scale is a digital understructure) or ADC2 (for a mixed setup with digital and analogscale base). In this case (one ADM/ADC and one DWM) the ADM board must always be installed in thefirst socket ADC1, the DWM is then installed in socket ADC2.

In a mixed setup one analog scale base with up to 4 x 350 loadcells can be connected to theADM/ADC interface.

The FBM or ECM module must not be used when an DWM board is in place, because the internalcommunication with the DWM module is made via COM4, i.e. this interface is not available for thefieldbus or Ethernet communication or an additional SIM module.

The DWM supplies a max. of 12V / 320mA for the digital force transducer(s).

Ex

W A R N I N G

When a DWM module is installed, the following restrictions apply:

The auxiliary voltage (10VDC on CPU8000, terminal KL4) must not be used.

If the current consumption of the digital force transducers exceeds 210mA, the interfaceextension socket X8 - X11 must not be used.

If the current consumption exceeds 320mA, an external power supply is required which musthave appropriate type of protection when installed in hazardous area.

DWM Interface module

DWM Jumper W1


Ex

The connection is designed compliant to type of protection 'Ex-nA'. If the digital scale base isto be installaed in hazardous area, compliance with the applicable Ex regulations is mandatory.The following connection values must be observed:

DWMTerminal

KL1

AssignmentRS4854-wire

AssignmentRS4852-wire

Description Nominal value

1 Tx A (Tx+) A (Tx+ / Rx+) + Transmit line RS485 5 V

2 Tx B (Tx—) B (Tx— / Rx—) — Transmit line RS485 5 V

3 Rx A (Rx+) — + Receive line RS485 5 V

4 Rx B (Rx—) — — Receive line RS485 5 V

5 0 V 0 (12 V) Supply voltage 0 (12 V) / 320 mA

6 +12 V (320mA) +12V Supply voltage 12 V / 320 mA







7.5.1 Connection Cables For Digital Scale Bases With RS485 Interface

Unsuitable cable may cause loss of data. For the installation of connection cables for digital scale basesplease note:

Only use suitable connecting cable (data cable), e.g. 6 x 0.25 mm² shielded, SysTec order-No.10KAB216, or data cable supplied by the manufacturer of the scale base.

Nominal Voltage of cable 250V.

Connect shield of cable at both sides, at cable gland of weighing terminal and at understructureand/or extension cable. If a difference between potentials is experienced, an appropriate potentialequalization must be installed.

Distance between loadcell cables and power lines: 0.5m. Loadcell cables to be installed ingrounded metal conduits, metal hoses or metal cable trays.

The permissible cable length depends on conductor cross section of the chosen data cable andthe current consumption of the connected force transducers. Make sure that excitation voltageat loadcells does not fall below the minimum excitation voltage as specified by manufacturer.

DWM in IT8000-Ex2/22 Calibration parametersprotected


If required for W&M approved and stamped systems, the position of the jumper W1 can be sealed withthread and lead seal:


7.6 Connection Of Serial Interfaces SIMThe three serial interfaces on the CPU8000 as well as the fourth interface on the FBM board can beindividually configured as RS232, RS485 4-wire, RS485 2-wire, RS485 2/4-wire optoisolated or 20mACL interfaces by means of SIM plug-on modules.

Please note: When a 20 mA CL interface is used, receiver and transmitter of the IT8000 are alwayspassive, i.e. supply voltage for the current loops must be provided by the connected peripheral device.

Assignment of serial interfaces on the CPU8000

Insert with notchpointing to top KL3 KL2 KL1

Assignment of serial interfaces on the FBM board

Insert with notchpointing to right hand side KL1

Ex

Peripheral devices are connected at CPU8000 screw terminals KL1, 2, 3 and FBM modulescrew terminal KL1. The connection is designed compliant to type of protection 'Ex-nA'. Thefollowing connection values must be observed:


SIM-RS232:

CPU8000 Terminal KL1, 2, 3FBM Terminal KL1


1 TxD ±12 VDC

2 RTS ±12 VDC

3 RxD ±12 VDC

4 CTS ±12 VDC

5 GND ±12 VDC

SIM- RS485 2-wire:



1 A (TxD+/ RxD+) 5 VDC

2 B (TxD– / RxD–) 5 VDC

3 A (TxD+/ RxD+) 5 VDC

4 B (TxD– / RxD–) 5 VDC

5 – –

SIM-RS485 4-wire / SIM-RS485 Opto:



1 TxA (TxD+) 5 VDC

2 TxB (TxD–) 5 VDC

3 RxA (RxD+) 5 VDC

4 RxB (RxD–) 5 VDC

5 – –

SIM-20mA:



1 TXIN 12 VDC / 20 mA

2 TXOUT 12 VDC / 20 mA

3 RXIN 12 VDC / 20 mA

4 RXOUT 12 VDC / 20 mA

5 – –


The following connection values must also be adhered to:






Principal circuit diagram of the 20mA current loop interface:


Principal connecting diagram RS485 network:

Terminal assignment: Some manufacturers of components with RS485 interface do not refer to theterminals TX+ and RX+ as 'A', but 'B' instead (correspondingly, the terminals TX– and RX– are notreferred to as 'B', but 'A').

Termination resistors: In order to prevent reflection (baud rate 19200 Baud or higher, and/or cablelonger than 20 m) it is recommended to install termination resistors RTerm = 150 on both ends of thecable. Use only twisted pair cables with a characteristic impedance of approx. 150 .

Pull-up / pull-down resistors: When termination resistors are used, also 390 pull-up and pull-downresistors must be installed at the master (see also following schematic).

Ex

If termination and pull-up / pull-down resistors are to be used in hazardous area, specificrequirements apply. Contact SysTec service for details.

RS485 network with termination, pull-up and pull-down resistors


For the installation of connection cables for serial interfaces please follow the recommendations listedbelow:

Install data cables to prevent capacitive or inductive interference from other cables, machinesand/or electrical devices that could interrupt data transmission and lead to loss of data.

Non-factory made cables must comply with the following specification:

Shielded twisted pair, e.g. LIYCY 3 x 2 x 0.25mm²,shield to be grounded on both sides.

Resistance 125 /km

Cross section 0.25 mm2 - 0.5 mm2

Capacitance 130 nF/km

Cable length 20mA max. 100 m

Cable length RS232 max. 15 m

Cable length RS485 max. 1200 m

Impedance RS485 ca. 150

Nominal voltage 250 V

7.7 Connection Of Parallel I/Os PIMThe parallel input/outputs on the CPU8000 can be activated by inserting plug-on modules. Each moduleprovides drivers for two optoisolated inputs and two optoisolated outputs.

Principal schematics

Parallel output Parallel input


Position and assignment of parallel inputs/outputs on CPU8000 board

Insert with notchpointing to top KL5 KL4

Ex

Peripheral devices are connected to the CPU8000 at screw terminals KL4 and KL5. Theconnection is designed compliant to type of protection 'Ex-nA'. The following connectionvalues must be observed:

Terminal assignment

KL4 / 5: parallel inputs and outputs 0 - 3

Terminal 4 Terminal 5 Signal Function Nominal value

1 0V 0V Auxiliary voltage 10 VDC / 100 mA

2 +10V +10V Auxiliary voltage 10 VDC / 100 mA

3 IN0 Input 0 24 VDC / 7 mA




1 In– Gnd for inputs 24 VDC / 28 mA

2 OUT0 Output 0 24 VDC / 100 mA




6 OUT+ External supply foroutputs

24 VDC / 400 mA

Note: The internal 10 VDC supply (terminal row KL4, terminal #2) may be used to connect switchesand push buttons to the digital inputs (100 mA max.). If an interface board to connect digital forcetransducers (IDN, DWM) is installed, this auxiliary voltage is not available. External devices connectedto the digital outputs must always be supplied from an external 24 VDC power supply. If connectedcomponents are installed in hazardous area, they must comply with appropriate type of protection, e.g.'Ex-d'.








For the installation of cables for digital I/Os please note:

Install I/O cables to prevent capacitive or inductive interference from other cables, machines and/orelectrical devices that could affect input/output signals and lead to malfunction and/or dangerousoperational conditions.

Cables must comply with the following specification:

Shielded multicore cables, shield connected to ground on both sides

Flexible wires with wire end ferrules

Resistance 125 /km

Cross section 0.25 mm2 bis max. 0.5mm2

Capacitance 130 nF/km

Nominal voltage 250 V

Legth of cabble max. 15m

Note:

To achieve maximum suppression of all coupled frequencies, the shield should be connected onboth sides.

If fluctuation of the earth potential is experienced, this can cause an equalization current flowingover the shield. In this case a separate earth lead of appropriate diameter for potentialequalization is required.


7.8 Connection Of Fieldbus Module FBMThe FieldBus extension Module can be inserted in socket X8-X11 of the main board and provides afourth serial interface. To this effect a SIM interface module is plugged into the corresponding socket.Connection of the serial interface is made at screw terminal KL1 of the FBM board.

Ex

For connection of a serial inteface to SIM4 on the FBM board refer to chapter 'Connection ofserial interfaces'.

Ex

The use of a fieldbus module in the socket 'Fieldbus controller' on the FBM board is notpermitted for IT8000Ex2/22. This socket must remain free.

KL1FBM SIM4

Main board


7.9 Connection Of Profibus DP Module PCMWith the Profibus Controller Module the IT8000-Ex2/22 operates as a Profibus DP slave, with an I/Ointerface (64 inputs and outputs) or a data interface with 32 input words and 32 output words. ThePCM module is designed for transmission speeds of 12 MBit/s. The definition of the individual datawords depends on the application and is specified in the Installation Instructions pertaining to therespective product.

The PCM interface is inserted in socket X8-X11 on the main board.

KL1PCM Profibus DP

Main board

The Profibus address is set in Service Mode, Group 4 'Configure Application' (see also InstallationInstructions of the applicable program). To set parameters of the Profibus master, the GSD file -included in the supply- is used.

Data transmission is made over an isolated RS485 interface complying with the Profibus DPspecification. Connections to the Profibus DP interface are made at terminal KL1 on the PCM board.Correct operation is indicated with the LED on the board.

If the terminal is connected to a physical end of the Profibus DP bus, the jumpers W1, W2 and W3must be set to terminate the bus.

Ex

The connection of external Profibus DP participants is made at terminal KL1 of the PCM. Theconnection is designed compliant to type of protection 'Ex-nA'. The following connectionvalues must be observed:


Terminal assignment Profibus DP interface

Terminal KL1: Profibus DP

Terminal # Profibus DP signal Nominal values

1 RTS 5 VDC

2 Gnd 5V 0 (+5 VDC) / 100 mA

3 +5V +5 VDC / 100 mA

4 / 6 B Line 5 VDC

5 / 7 A Line 5 VDC







Function of jumpers

Jumper Profibus DP interface

W1 Pull-up resistor

W2 Termination resistor

W3 Pull-down resistor

The line is terminated when the jumpers are closed.

For the configuration of the Profibus master, a GSD file is required that you can download from ourwebsite 'www.systecnet.com'.

Follow the link 'Service' and from there to 'download software'.

Download the file 'GSD.ZIP' (click right on the link and choose 'Save Target As...).

Unpack the ZIP file on your hard disk.


7.10 Connection Of Ethernet Module ECMWith the Ethernet Controller Module the IT8000-Ex2/22 terminal can be connected to Ethernetnetworks. The ECM module is plugged into sockets X8-X11 on the CPU8000 board. Connection to theLAN is made via a prefabricated cable.

The ECM module supports the TCP/IP protocol. Data can be transferred from the nework to the serialinterface COM4 via the port #1234 without change of contents.

The ECM module is configured with the PC program EtherPort Tool which is used to identify themodule in the network and to assign an IP address with the pertaining parameters. Each ECM boardhas its unique MAC address which is printed on the side of the Xport module.

IT8000 Service Mode settings for COM4 are as follows: 9600 Baud, format 8N, no handshake (---).The choice of the transmission protocol depends on the application program on the PC.

The ECM module must not be used when an IDN or DWM board is in place, because these modulesuse COM4 for the internal communication with the CPU8000, i.e. COM4 is not available for theEthernet interface.

RJ45 connectorECM for network cable

Main board

Ex

The connection is designed compliant to type of protection 'Ex-nA'. The connection values ofthe Ethernet standard (IEEE 802.3) must be adhered to:


ECMRJ45 socket

Signal Description Nominal values (Ex-nA)

1 Tx+ Transmit Data + IEEE 802.3

2 Tx- Transmit Data - IEEE 802.3

3 Rx+ Receive Data + IEEE 802.3

4 Rx- Receive Ata - IEEE 802.3

5 Not used Not used IEEE 802.3




Shield Chassis Ground Chassis Ground IEEE 802.3

The 'EtherPort Tool' can be downloaded from our website 'www.systecnet.com'.

Follow the link 'Service' and from there to 'download software'.

Download the file 'EtherPort_Tool.ZIP' (click right on the link and choose 'Save as...).

Unpack the ZIP file on your harddisk. Start 'Setup.exe'.

7.10.1 Ethernet Cable With RJ45 Connector

IT8000-Ex2/22 with ECM module is supplied ex factory with a firmly connected Ethernet cable of 5 mor 10 m length with RJ45 connector to connect to a local area network.

Ex

If the RJ45 connector of the Ethernet cable is to be connected to the network inside thehazardous area, an appropriate method of protection in compliance with EN60079-0 (e.g. Ex-e,Ex-d) must be chosen for the connection. The RJ45 connector itself does not have any Exprotection and must not be connected/disconnected when a potentially explosive atmosphere ispresent!


7.11 Connection Of 15-Bit Analog Output DAU15For the output of gross or net weight as analog 15-bit signal a plug-on module (DAU15) can beinserted instead of a parallel driver module in the PIM socket. The output signal has a resolution of 15bit (32768 steps). The module can be configured in group 4 'Configuration Of DAU15 Analog Output'of the Service Mode to 0/2 - 10V or 0/4 - 20mA. The output of the DAU15 module is active andpotential free.

Position and assignment of analog output module DAU15 on CPU8000 board

Insert with notchpointing to top KL5 KL4

Ex

Peripheral devices are connected to the CPU8000 at screw terminals KL4 and KL5. Theconnection is designed compliant to type of protection 'Ex-nA'. The following connectionvalues must be observed:

Terminal assignment KL4 and KL5:

DAU15 plugged into socket PIM1 or PIM2

KL4 KL5 Signal Description Socket Nominal values

1 -

2 -

3 I+ + Current output 0/4 - 20mA PIM1 10 V / 20 mA

4 I— — Current output 0/4 - 20mA PIM1 10 V / 20 mA

5 I+ + Current output 0/4 - 20mA PIM2 10 V / 20 mA

6 I— — Current output 0/4 - 20mA PIM2 10 V / 20 mA

1 -

2 U+ + Voltage output 0/2 - 10V PIM1 10 V / 20 mA

3 U— — Voltage output 0/2 - 10V PIM1 10 V / 20 mA

4 U+ + Voltage output 0/2 - 10V PIM2 10 V / 20 mA

5 U— — Voltage output 0/2 - 10V PIM2 10 V / 20 mA

6 -








Example for current output 0/4 - 20 mA (DAU15 in socket PIM1):

Example for voltage output 0/2 - 10 V (DAU15 in socket PIM2):


8 Commissioning

8.1 GeneralPrior to start up follow the check list below:

Check to make sure that during commissioning no potentially explosive atmosphere can bepresent.

Check whether the conditions concerning the intended use are fulfilled (see section 'Intendeduse').

Check assembly as described in 'Assembly'.

Check of installation (equipotential bonding, connection of external components) as describedin chapter 'Installation'.

Check installation as to compliance with EN 60079-14.

Check whether housing is thoroughly closed with all hexagonal srews tightly fastened.

Check to make sure that the components connected to the outputs and interfaces (valves,movable parts) cannot cause any damage.

Switch on supply voltage.

Configure weighing terminal (interface parameters...) in the Service Mode as described insection 'Service Mode'.

Calibrate scale as described in Calibration Instructions.

Ex

Test inputs/outputs, serial interface and scale function in Service Mode as described insection 'Hardware Test'.


9 Installation ExamplesShown below are three typical system configurations with the weighing terminal IT8000-Ex2/22.These are principal schematics depicting the options to connect peripheral devices and the connectionsin hazardous area as well as in safe area. All devices installed in hazardous area must be designedcompliant to an appropriate type of protection. All sections of this manual and the installation standardEN 60079-14 must be complied with in full detail.

9.1 Installation Example IT8000-AC-*-Ex2/22


9.2 Installation Example IT8000-DC-*-Ex2/22


9.3 Installation Example IT8000-DC-*-Ex2/22 With Akku-Box


10 Service Mode

10.1 GeneralThe Service Mode is a program for the configuration and the hardware test of the IT8000-Ex2/22weighing terminal. Additionally, a tool is implemented to back up and restore data when connected to aPC. The following sections give an introduction on how to operate the terminal via keyboard anddisplay and describe the individual functions of the Service Mode.

Notes:

IT8000-Ex2/22 and its associated equipment must be installed, adjusted and maintained byqualified personnel only!

Before accessing the Service Mode all peripheral devices must be installed and configured!

Access to the Service Mode is protected by the Service Password.

Inappropriate changes of Service Mode settings may lead to malfunction and errors in theoperating sequence!


10.2 Display And Keyboard

Upper display line: Gross or net weight or headline of special functions *)

Lower display line: Prompts, left justified, or parameter entry, right justified *)

Info Forward scrolling

Backwards scrolling

Info Access to Service Mode

Pressed simultaneously with alpha key: upper case letter

Pressed simultaneously with alpha key: lower case letter

Press three times: activate contrast adjustment, increase contrast

Special keys:

Press three times: activate contrast adjustment, reduce contrast

F1 - F4 Functions depending on application program

F5 (Print) Print F6 (Find) Search entryFunction keys:

F7 (Delete) Delete entry F8 (Esc) Abort function

Clr Clear entryClear keys:

Delete last character

Cursor key: Return to previous program step

Enter key: Confirm entry, continue with next program step

X Show net weight with tenfold resolution for 5 sec (only in tarestep of operating mode Simple Weighing, if enabled in ServiceMode)

Automatic taring, if scale is tared: clear tare

Set selected scale to zero

Scale keys:

Select scale (applicable only if two scales installed)

*) Depending on the application program the display may be subdivided in a different way (e.g. 4lines).


10.3 Operator PromptingThe following sections describe the operating sequence with operator prompts and the requestedentries. In the Service Mode only two out of the maximum of 4 lines are used.

The content of the terminal display is shown in a frame on the left hand side. Next to the display thepossible operator entries are listed, on the right hand side comments and explanations are shown.

Example:

Service ModePassword ????

Entry of the 4-character service password

Return to normal operation

Prompts or entries that apply only under certain conditions are shown in an extra frame. The conditionis shown in bold face in the upper left hand corner of the frame.

Example:

If detail ident data is specified:

Detail Ident DataDelete after print Y

1,Y

0,N

ID is cleared after printing.

ID data is not cleared.

This display appears only if ID has been specified.

Enter Key and -Key

In all program steps, unless otherwise specified, the Enter-key leads to the next step. Pressing the -key leads to the previous step.

Parameter Choice, e.g. 'Product No. 99':

In program steps that require the selection of a parameter, the options can be displayed by means ofthe Info-key (scrolling). By pushing the Enter-key the displayed parameter is selected. The selectioncan be exited via the -key.

Select Functions, e.g. 'Select Function 1-2':

In program steps that require the selection of a function, the options can be displayed by means of theInfo-key (scrolling). By pressing the Enter-key the displayed function is selected. Alternatively, thefunction can also be started directly by entering the corresponding number in the step 'Selectfunction'. Function selection can be exited by pressing the -key.

Confirmation with Y (1) or N (0):

A prompt such as 'Save parameters? Y' is confirmed by pressing the key #1 and subsequently the -key. By pressing key #0 and -key the proposed action is rejected and in this example the parametersare not saved.

Numeric Entries (Numerals Only):

A requested numeric entry is depicted by '99999'. The length of the string corresponds to themaximum length of the entry, (e.g.: 99 = 2 digits, numeric).

Numeric entries are made from right to the left. As defined in the program, entry of decimal point andminus sign may be accepted. Fixed point data entries already show the right number of decimals.


Alphanumeric Entry (Letters and Numerals):

A requested alphanumeric entry is depicted by 'XXXXXXX'. The number of x characters correspondsto the length of the entry. Alphanumeric data entry is made from left to right. If the number ofcharacters to be entered is greater than the number of characters that can be shown on the display,the content of the display is shifted to the left by one position for every newly entered character. Bypressing the key the entry can be scrolled to the left - simultaneously pressing the and keysscrolls the entry to the right.

Adjusting the contrast of the display:

As of version RTP 6.06 of the operating system and IT8000-CPU Index 006, the contrast of thedisplay can be adjusted via the keyboard. Press the key or three times to activate the adjustment.Then press the or key again to increase or reduce the contrast in steps. Press any other key to exitadjustment.

10.4 OverviewAfter the power up messages with display of program version, date and time, the scale is started andthe program proceeds to the initial step.

W1 0 kgIT8000 XXXXX V9.99

While program name and version number is displayedService Mode can be accessed by simultaneouslypressing the shift and Info keys.

Info Call up Service Mode

Service ModePassword ????

Entry of the 4-character service password


Service ModeSelect Group 1-7

1 Interface configuration

2 Header ident data

3 Detail ident data

4 Application setup

5 Data backup

6 Hardware test

7 S5 Data block

Info Scrolling

F5 Print Setup and configuration data

Backwards scrolling


When Service Mode is exited, the entered or modified parameters are stored. Parameters of the groups1 and 4 (and the factory setting of the device assignment) are stored in Flash-EPROM, whereas allother parameters are stored in RAM. While Flash-EPROM is updated, a corresponding message isdisplayed:

Storing ParametersPlease Wait...

Display while Flash-EPROM is updated


CAUTIONBy no means switch off power during this operation, because that will inevitably destroy thecontents of the Flash-EPROM and thus the program.

Note: If the Info-key is pressed on power up, the version and the checksum of the RTP operatingsystem are temporarily displayed.

RTP7.2 ID:9999999999

Version and checksum of RTP operating system.

10.5 Interface Configuration


1 Interface configuration

Serial InterfacesScale 1 ADC

Select scale driver for first scale

ADC = Analog L/C connected to ADM/ADCMettler = Mettler IDNet protocol 1)Sartorius = MC1 compatible protocol (SBI) 2)Summing = Summing scale ADM1 + ADM2

or ADC1 + ADC2IS Scale = Sartorius IS platformHBM C16i = Digital HBM loadcellREVERE SLC= Digital Revere SLC loadcellDisabled = Scale temporarily out of operationoff = No scale

F1 ADC selected: Adapt Mode provides options tooptimize the digital filtering of the captured weight,refer to the ADM / DUAL-ADM / ADM8000-ExiCalibration Manual, Order-No.: ST.2309.0688

1) Intended for Mettler-Toledo scale bases with IDNet interface and 12VDC power supply.2) Parameters of the Sartorius scale must be set to:

MC1 protocol (SBI), 7 bit, odd parity, 1200 baud, RTS/CTS, streaming mode, 16-character datastring.

ADC selected and F1 pressed:

Serial InterfacesFilter Size: 99

Info Select Filter Size to overwrite setting in calibration; 1(light) to 20 (strong) filtering, 'OFF' and 'CAL' (resetto value of calibration)

ADC selected:

Serial InterfacesScale 1 Intern

Info Select interface for scale 1:Intern = socket ADC1 or ADC2COM1...COM4 = external ADCBox

If ADC and COMx is selected:

Serial InterfacesExtern I/O Module 9

Number of relay and/or transistor modules that arealso connected to the same serial interface. MAImodules are not counted.


Mettler, Sartorius MC1 (SBI), HBM C16i or REVERE SLC selected:

Serial InterfacesScale 1 COM1

Info Select interface:COM1 = Interface #1COM2 = Interface #2COM3 = Interface #3Intern = IDN or DWM module in socket ADC1

or ADC2 3)

3) Since IDN or DWM modules use interface COM4 for the internal communication, the FBM or ECMboards cannot be used together with digital scale bases. Only one IDN or DWM board can beinstalled.

Please note! If scales with analog loadcells are used together with scales connected to serial interfaces,the analog (internal) scales must be configured first.

Continue with next scale.

After selecting 'off' or after scale #8:

Serial InterfacesCom1 Baudrate 99999

Info Select baud rate for serial interface #1:

300, 600, 1200, 2400, 4800, 9600, 19200

Return to 'Select Group'

Serial InterfacesCom1 Data Format XX

Info Select data format for serial interface #1:

7N = 7 data bits, no parity7E = 7 data bits, even parity7O = 7 data bits, odd parity8N = 8 data bits, no parity8E = 8 data bits, even parity8O = 8 data bits, odd parity

Always 1 stop bit is transmitted.

Serial InterfacesCom1 Handshake XXX

Info Select hardware handshake for interface #1:

CTS = Control via RTS/CTSXON = Control via XON/XOFFHDX = Half duplex (for RS485)4W_XON = Control via XON/XOFF for 4-wire

RS485 connection––– = No handshake

Setting of RS485 interfaces:

RS485 2-wire HDX

RS485 4-wire, MultiDrop HDX

RS485 4-wire,SysTec Multidrop protocol for PC BATCH

RS485 4-wire software handshake 4W_XON


Serial InterfacesCom1 Protcl. XXXXXXX

Info Select protocol for interface #1:

TTY Printer protocol (data only)EPSON Printer protocol EPSON ESC/P

AckNak Standard protocol (see below)No-Ack Standard protocol (see below)Du3964 DUST 3964 (R)RK512 RK512 telegramSinecL1 Sinec L1

(point to point connection for I/Os) 1)Ext.Bus External Bus: DeviceBus for Sinec L2 or

external IT8000 extensions 2)Special (application-specific)

1) The Sinec L1 procedure is only implemented because of compatibility with programs written priorto 1995. Do not use for new applications!

2) By default the interface COM2 is intended for the connection of external IT8000-Ex2/22components and pre-configured for DeviceBus.

If EPSON was selected as transmission protocol:

Serial InterfacesCom1 Remote Prt. N

0,N Standard printer protocol

1,Y Remote printer protocol

If AckNak or No-Ack was selected as protocol:

Serial InterfacesCom1 Start Char. 999

Entry of start character as decimal value(e.g. 2 = STX)

For entry '0' no start character is transmitted.

Serial InterfacesCom1 End Char. 999

Entry of end character as decimal value(e.g. 3 = ETX)

For entry '0' no end character is transmitted.

Serial InterfacesCom1 Checksum XXX

Info Select 1-Byte checksum to be transmitted after theend character:

CPL = Complement of twoXOR = Exclusive-Or checksum––– = No Checksum

Note: For a detailed description of the ACK/NAK protocol see annex.


If a checksum was selected and a start character specified:

Serial InterfacesCom1 With Strt Chr Y

1,Y The start character is included in the checksumcalculation

0,N The start character is not included in the checksumcalculation

If a checksum was selected and an end character specified:

Serial InterfacesCom1 With End Char Y

1,Y The end character is included in the checksumcalculation

0,N The end character is not included in the checksumcalculation

If Du3964 was selected as transmission protocol:

Serial InterfacesCom1 With Checksum Y

1,Y Transmission with checksum (Dust3964R)

0,N Transmission without checksum

If RK512 was selected as transmission protocol:

Serial InterfacesCom1 Device-No. 999

Entry of target device-No.(DB) 0–255

Serial InterfacesCom1 Word-No. 999

Entry of target word-No.(DW) 0–255

If Sinec L1 was selected as transmission protocol:

Serial InterfacesCom1 Inp.Modules 9

Number of 8-bit input modules

Serial InterfacesCom1 Outp.Modules 9

Number of 8-bit output modules

Note: If Sinec L1 is selected, the digital I/Os of an S5 PLC are read and set via the serial interface(point to point connection). In this communication the IT8000-Ex2/22 terminal is themaster. The parallel I/Os of the IT8000-Ex2/22 are disabled.


If DeviceBus was selected as transmission protocol:

Serial InterfacesCom1 I/O-Module 9

Number of 8-bit input/output modules

Serial InterfacesCom1 SinecL2

Info Use Info-key to toggle:

SinecL2 or DeviceBus

Note: External IT8000-Ex2/22 extensions are connected via the DeviceBus protocol (in combinationwith a 2-wire RS485 interface). This applies to RS485 relay or transistor modules (REL485 /TRIO485), analog 12-bit I/O modules and external scale multiplexers. By default theseextensions are assigned to interface COM2, which is configured to 'DeviceBus' and 'Numberof I/O modules = 0'. When a value unequal 0 is entered, the I/Os of an external relay /transistor module are read and set via the serial interface. The parallel I/Os of the IT8000-Ex2/22 are then disabled.

This feature is only available for relay and transistor modules with firmware 2.0 or higher,older versions cannot be connected.

Continued with settings for next interface.

When an IDN or DWM board is installed in socket ADC1 or ADC2, the interface COM4 is not availableany more.

10.6 Header Ident DataIf the application program supports the entry of IDs, they can be defined as 'Header Ident Data' and'Detail Ident Data' in the Service Mode.

'Header Ident Data' are entered once -e.g. at the beginning of an order- and are valid for each item ofthe order. Example: Entry of 'Order-No. ________' for an operating sequence with printout of a

delivery note.

In the Service Mode up to 6 header IDs can be specified, including operator prompts and length ofentry.

Service ModeSelect Groupe 1-7

2 Header Ident Data

Header Ident Data 1XXXXXXXXXXXXXXXXXXXX

Entry of operator prompt for the first header-ID.

The length of the entry is specified by the number ofremaining underline characters on the right hand sideof the display. The length can be adjusted by enteringspace characters behind the operator prompt.

Return to step 'Select Group'


If ID was defined:

Header Ident Data 1Delete After Print Y

1,Y The ID is cleared after printout.

0,N The ID is not cleared after printout.

Continued with next ID.

If no ID was defined, or after the sitxth ID, return to step 'Select Group'.

10.7 Detail Ident DataIf the application program supports the entry of IDs, they can be defined as 'Header Ident Data' and'Detail Ident Data' in the Service Mode.

'Detail Ident Data' are entered at the beginning of each weighing cycle.

Example: Entry of 'Article-No. ________' for an operating sequence with printout of individual

lines per article.

In the Service Mode up to 6 detail IDs can be specified, including operator prompts and length of entry.


3 Detail Ident Data

Detail Ident Data 1XXXXXXXXXXXXXXXXXXXX

Entry of operator prompt for the first detail-ID.

The length of the entry is specified by the number ofremaining underline characters on the right hand sideof the display. The length can be adjusted by enteringspace characters behind the operator prompt.


If ID was defined:

Detail Ident Data 1Delete After Print Y

1,Y The ID is cleared after printout.

0,N The ID is not cleared after printout.

Continued with next ID.

If no ID was defined, or after the sixth ID, return to step 'Select Group'.


10.8 Application SetupThe application setup serves to enter the parameters controlling the basic functions of the program.Listed below are the entries which apply to all application programs. Entry of further parameters maybe required depending on the application program (see also Installation Instructions pertaining toapplication program).


4 Application setup

Application SetupLanguage XXXXXXXX

Info Language for prompts and messages:

German, English, French, Polish, Dutch, Italian,Spanish


Application SetupPC Keyboard DE

Info Select layout for an external PC keyboard:

DE GermanyCH SwitzerlandUK Great BritainUS USA / South AfricaFR FranceES Spain

Application SetupDate Format XXXXXXXX

Info Selection of date format:

DD.MM.YY DD-MM-YY DD/MM/YYMM.DD.YY MM-DD-YY MM/DD/YYYY.MM.DD YY-MM-DD YY/MM/DDD = Day M = Month Y = Year

Application SetupDecimal Char. XXXXX

Info Select character to separate decimals:

Decimal point (e.g. 0.00)Comma (e.g. 0,00)

Please note: With the selected decimal character also the transmitted key code is changed accordingly.

Application SetupApproval Signs Y

1,Y Weights are printed with approval signs in compliancewith former PTB regulations:

Example: Gross/Tare/Net<25.45kg> / <10.00kg> / <15.45kg>

or <25.45kg> / 10.00kgPT / 15.45kgC

0,N Weights are printed in compliance with EC regulations:

Example: Gross/Tare/Net25.45kg / 10.00kgT / 15.45kgN

or 25.45kg / 10.00kgPT / 15.45kgN


Application SetupUnload After Tare N

Configuration of tare function

1,Y Scale must be unloaded before tare can be cleared orchanged.

0,N Tare can be cleared or changed at any time.

Application SetupAllow Expand Mode Y

In the tare step the net weight can be displayed withtenfold resolution for approx. 5 sec after pressing theX-key.

(Function must be supported by the connectedweighing platform.)

1,Y High resolution display enabled

0,N High resolution display disabled

Important Note:

All entries of further parameters in this group depend on the application program and are described inthe Installation Instructions pertaining to the program.

10.8.1 Fieldbus Interface

Application programs supporting the IT8000 COMBUS module request the configuration of thisinterface at this step of the setup sequence.

Application SetupI/O over Profibus N

Enable / disable control of digital I/Os over Profibus DP(PCM) instead of PIM modules.

Y Digital inputs/outputs over Profibus DP

N Digital inputs/outputs over PIM modules

Note: If Profibus DP (COM_BUS) is directly supported by the application program, the function 'I/O overProfibus' must NOT be activated.

I/O over Profibus = Y:

Application SetupSlaveaddress (0-126)

Enter slave address

Application SetupBus Protocol (0-6) _

Select COMBUS protocol:

0 No communication

1 COMBUS DIN 66019

2 Profibus DP

3 Modbus RTU-Format

4 Protocol 3964/3964R

5 Protocol RK512

6 Special Mode


Depending on the selected protocol entry of further parameters is required:

COMBUS DIN 66019 or Modbus RTU selected:

Application SetupSlaveAddress(0-31)__

Enter slave address

Application SetupDebugmode ? N

Enable / disable debug mode

Profibus DP selected:

Application SetupSlaveaddress (0-126)

Enter slave address

DUST 3964 selected:

Application SetupNo.words received __

Number of output words (as seen from master)

Application SetupNo.words transm. __

Number of input words (as seen from master)

Default setting is 16 input and 16 output words. Transmission is made 10 times per second.

RK512 selected:

Application SetupDebugmode ? N

Switch on/off debug mode

If debug mode is switched on, status information on received send and fetch commands is available.

Note: After changing the setting for the protocol all interface parameters are reset to default values.


10.8.2 Configuration Of DAU15 Analog Output

Note: The routine to configure the DAU15 analog output must be implemented in the applicationprogram, it is not included in the default version of the Service Mode.

Only if DAU15 module is installed in PIM socket:

Application SetupDAU15: PIM1

Assign PIM socket for DAU15 module.

Info Select socket (PIM1 or PIM2).

Application SetupDAU15: 0-10V

Operating mode (0-20mA, 4-20mA, 0-10V or 2-10V).

Info Select mode.

Application SetupDAU15: 0V= 6928

Adjust zero.Connect measuring instrument and check value 0/2Vor 0/4mA.

1 Increase analog signal stepwise.

0 Decrease analog signal stepwise.

Application SetupDAU15: 10V= 63575

Adjust range.Connect measuring instrument and check value 10Vor 20mA.

1 Increase analog signal stepwise.

0 Decrease analog signal stepwise.

Note: When the operating mode is changed, the stored values are overwritten

10.9 RAM Data BackupBy means of the PC program Backup & Restore it is possible to backup individual files or all files on aPC and to restore them at a later time.

With the RTG programming environment also the complete contents of the memory can be transmittedfor test purposes.

Data backup is made via the service channel.


5 RAM data backup

RAM Data Backup1=RAM /2=Data Base

1 Transfer complete RAM

2 Data base backup



If complete RAM backup was selected:

RAM Data BackupEnter 1=to/2=from PC

1 Transfer data to PC

2 Load data from PC


If data base backup was selected:

RAM Data BackupPlease Wait ...

Start PC program 'Backup & Restore'


10.10 Hardware TestThe IT8000 Service Mode provides comprehensive test tools for hardware diagnostics.


6 Hardware test

Hardware DiagnosticsSelect Function 1-8

1 Test serial interfaces

2 Test parallel I/Os

3 Test memory

4 Test display

5 Test keyboard

6 Clear memory

7 Terminate application program

8 Assign devices

Info Forward scrolling

Backwards scrolling



10.10.1 Serial Input/Output Test

To test a serial interface, characters are output and read back. This requires jump leads betweentransmitter and receiver (loop back connector).


1 Test serial interfaces

Serial IO TestSelect COM 1-4

Select test serial interfaces with key 1 - 4.

IT8000 terminals without interface extension moduleFBM only support COM1 to 3.

Return to 'Select Function'

Serial IO TestTesting COM 9 ...

Display while interface test is running

Serial IO TestCOM1 is ok

Press any key to continue

If test fails a corresponding message is displayed:'Port X has failed'.

Return to 'Select COM 1-4'

10.10.2 Parallel Input/Output Test


2 Test parallel I/Os

Test of the internal inputs/outputs:

Out: 0000In: 0000

Status information 0 or 1 for outputs in the upper lineof the display (Output 0 to 3 from right to left).

Status information 0 or 1 for inputs in the lowerdisplay line (Inputs 0 to 3 from right to left).


By pressing the 0-key repeatedly the output '0' can be intermittently set or reset. In the same way, thekeys 1 - 3 are used to toggle the outputs 1 to 3. If outputs are wired on inputs, also input test can beperformed.

Test inputs and outputs of external RS485 relay or transistor module:

Only if protocol DeviceBus is selected:

IO Test OUT:00000000Module 1 IN:00000000

Status information 0 or 1 for outputs in the upper lineof the display. (Outputs 0 to 7 from right to left).

Status information 0 or 1 for inputs in the lower lineof the display. (Inputs 0 to 7 from right to left).

F1 - F8 Select relay or transistor module 1 to 8

Return to step 'Select Function'

By pressing the 0-key repeatedly the output '0' can be intermittently set or reset. In the same way, thekeys 1 - 7 are used to toggle the outputs 1 to 7. If outputs are wired on inputs, also input test can beperformed.


10.10.3 Memory Test


3 Test memory

Memory TestTesting EPROM ...

Checksum test over CPU-EPROM

Memory TestTesting RAM ...

Write/read test over CPU-RAM

Memory TestMemory is OK

If a memory error was detected a correspondingmessage is displayed


10.10.4 Display Test


4 Test display

A block of 120 x 8 pixels (full width and a quarter ofheight of the display) is moved from top to bottom todetect defective pixels.


10.10.5 Keyboard Test


5 Test keyboard

Keyboard TestStrike a Key X

The key pressed is displayed



10.10.6 Delete Memory

In this group default setting of configuration parameters (as defined in the initialization part of theapplication program) can be restored, after the RAM memory of the terminal is cleared. This reversesall changes that might have been made in the Service Mode, and it can be required to again configurethe terminal.

The scale calibration is not affected.

Note: After performing the clear memory function all data files are irrevocably lost!


6 Delete memory

Hardware DiagnosticsDelete Memory? N

0,N Return to step 'Select Function'

1,Y Continue

Hardware DiagnosticsFactory Reset N

0,N Do not restore default setting and proceed

1,Y Restore default setting and proceed

Hardware DiagnosticsAre you sure? N

Verification

0,N, Return to step 'Select Function'

1,Y Delete memory

Please note that also the language parameter is reset and that the following prompts appear in German.

Factory Reset = Yes:

Parameter speichernbitte warten...

'Storing Parameters Please Wait'

Display while default setting is restored

Für Neustart Netzaus- und einschalten

'To Restart Program Switch Power off / on'

The terminal must now be switched off and on again.After power up the memory is cleared.

If the Factory Reset was skipped, prompts appear in English again on power up. If a Factory Reset wasperformed, English must be selected again in group 4 of the Service Mode.


10.10.7 Terminate Program

This function can be used when the application program is to be stopped for testing or for download ofa new program. Testing and download require the RTG programming environment.


7 Terminate application program

Hardware DiagnosticsExit program? N

0,N,

1,Y

Return to step 'Select Function'

Continue

Service Channel COM1

Program is halted;Indication of service channnel


10.10.8 Assignment Of Devices

This function allows the assignment of external devices such as printer or host computer to the serialinterfaces.

The application program accesses external devices via symbolic addresses, e.g. 'Host' or 'Prt1'. Thedefault assignment of the serial interfaces of the IT8000-Ex2/22 is shown below:

Peripheral Device Symbolic Interface Physical Interface

Host computer Host COM1 (Interface 1, KL1 on CPU8000)

Printer 1 Prt1 COM2 (Interface 2, KL2 on CPU8000)

Printer 2 Prt2 COM3 (Interface 3, KL4 on CPU8000)

Peripheral device 1 Aux1 COM4 (Interface 4, KL5 on FBM)

Peripheral device 2 Aux2 COM5 *)

Peripheral device 3 Aux3 COM6 *)

Service channel COM1

The assignment of physical interfaces to the symbolic interfaces can be changed here.

*) COM5 and COM6 are wildcards, since the terminals has only a max. of 4 physical interfaces.


8 Assign devices

Device AssignmentHost Channel is COM1

Assignment of the symbolic address 'Host' to channelCOM1; e.g. enter '2' for COM2.


Device AssignmentPrt1 Channel is COM2

Assignment of the symbolic address 'Prt1' to channelCOM2; e.g. enter '3' for COM3.

Continue with Prt2, ...

Note: Support of the channels Host, Prt1, Prt2, Aux1 to Aux3 depends on the application program.


10.11 S5 Data BlockIf parts of the application software are programmed in STEP5, the data words DW0 to DW63 can beentered to preset variables, timers and/or counters.

The data words DW0 and DW1 are reserved as follows:

DW0 = number of scales (0 .. 3) for the PLC taskDW1 = number of 8-bit input / output modules (0 .. 7)

All other data words are defined in the application program.


7 S5 data block

Service ModeDW 0 = K?

Entry of data type for data word DW0:

0: KF = Integer number1: KT = BCD-encoded timer value2: KZ = BCD-encoded counter value


If data type 'number' was selected:

Service ModeDW 0 = KF 9999999

Entry of integer number ranging from–32768 to 32767

Return to previous data word,from DW0 return to 'Select Group'

F7 Return to entry of data type

If data type 'BCD-encoded timer value' was selected:

Service ModeDW 0 = KT 999,9

Entry of time with encoded time base ranging from1,0 to 999,3.

The decimals left to the comma represent the value,the decimal right to the comma is the encoded timebase:

0 = 0,01s 2 = 1s1 = 0,1s 3 = 10s



If data type 'BCD-encoded counter value' was selected:

Service ModeDW 0 = KZ 999

Entry of counter value ranging from0 bis 999



Continue with next data word.


11 Transport, Maintenance And Cleaning

11.1 Transport

Notes:

Transport and storage of electronic components such as boards, EPROMS, etc. must only bemade in suitable anti-static ESD bags or cases.

Do not expose the unit to extreme temperatures, humidity, shocks or vibrations.

Storage temperature –10 to +50°C at 95% max. relative humidity without condensation.

11.2 Maintenance

Ex

Maintenance at regular intervals must be carried out by qualified personnel (see chapter'Installation') authorized by SysTec GmbH. At these inspections first of all it must be made surethat the housing is tight, all cables are undamaged and all screws are securely fastened.

Maintenance of scale platforms is required at regular intervals depending on use and environment. Theaccuracy of scales can be affected by dirt, foreign objects, etc. and appropriate maintenance isstrongly recommended. Also recommended is the calibration with certified test weights at regularintervals.

A function check is possible with the program Service Mode.

11.3 Replacement Of Fuse (Only IT8000-DC-*-Ex2/22)

Ex

The power supply input of IT8000-DC-*-Ex2/22 (article-No. X8SYS0x6) with CPU8000-24VDC-Ex2/22 is protected with the fuse F1. The fuse must only be replaced by qualifiedpersonnel (see chapter 'Installation') authorized by SysTec GmbH. Replacement of the fusemust only be made when all power sources to the instrument are disconnected and when nopotentially explosive atmosphere can be present. Only a fuse of type TR5 2AT may be used.

Position of the fuse F1 (type TR5 2AT) on the CPU8000-24VDC-Ex2/22


11.4 Cleaning

Only permit qualified personnel to operate this unit! Disconnect all power to this unit beforecleaning!

The keyboard overlay is resistant against acetone, trichlorine, alcohol, ether, nitric acid (20%),hexane, sulfuric acid (20%) and all-purpose cleaning agents.

Ex

Clean the keyboard with a soft clean cloth that has been dampened with a mild window typecleaner. Do not spray cleaner directly on the unit. Concentrated leaches or acids or pure alcoholmust not be used. In order to avoid electrostatic charge, do not rub or wipe the keyboard witha dry cloth.

If cleaning agents are used that contain leach, acid or alcohol, pure water must be used towash off any residue.

11.5 Security Check

Ex

Safe operation is no longer warranted if:

housing or keyboard is damaged

connected cables, cable entry or equipotential bonding are damage

the connected power supply unit is damaged

the display remains dark after switching the unit on.

In these cases disconnect all power to the unit and contact your service station authorized bySysTec.

11.6 Functional TestThe functionality of the weighing terminal ist tested during calibration of the scale with test weights.The digital inputs / outputs and the serial interface can be tested in the Service Mode (hardware test).

11.7 Repair

Ex

Immediately disconnect all power to a damaged unit.

Only qualified service personnel (see chapter 'Installation'), authorized by SysTec GmbH, may carry outrepair work using genuine factory supplied spare parts.

11.8 De-Installation

1. Make sure that all power to the weighing terminal and all connected devices isdisconnected and that no potentially explosive atmosphere can be present.

2. Remove cabling.Ex

3. Use suitable tool to de-install weighing terminal.

11.9 DisposalFor the disposal of the weighing terminal all coutry-specific and locally applicable regulations must beobserved!


12 Trouble Shooting

Ex

IT8000-Ex2/22 does not contain any customer servicable parts!

IT8000-Ex2/22 may only be installed, adjusted and serviced by qualified personnel!

Ex

The weighing terminal must only be opened when all power to the unit is disconnected.

Ex

Immediately disconnect defective units from all power sources. Only qualified service personnel(see chapter 'Installation'), authorized by SysTec GmbH, may carry out repair work withgenuine factory supplied spare parts, or serious risks for the user may evolve.

If any problem arises, please follow this check list:

Disconnect the weighing terminal from all power sources.

Check whether all cables including cable glands show any damages.

Check whether housing and keyboard overlay are undamaged.

If operational difficulties are encountered that cannot be rectified by means of this manual, obtain asmuch information as possible regarding the particular trouble.

Ex

Fault finding must not be carried out as long as any potentially explosive atmosphere can bepresent.

If possible, try first to determine the conditions under which the problem occurs. Try to find outwhether the appearance of the difficulties can be reproduced under the same conditions.

For the systematic analysis of an unknown problem the information as listed below is required:

Serial-No. of the unit and its peripheral components.

Exact wording of any error message displayed.

Type and model of peripheral devices related to the problem (e.g. scale, printer, etc.)

To obtain professional assistance contact your service station stating the information listed above.


13 Technical Data

13.1 Basic Units

IT8000-**-W-Ex2/22

Stainless steel wall-mount / desk-top housing,

ingress protection IP65, weight: approx. 4 kg;

Housing

IT8000-**-E-Ex2/22

Stainless steel panel-mount housing,

ingress protection see chapter 'Intended use', weight: approx. 4 kg;

Temperaturerange

Storage: –10 C to +50 C at 95 % max. relative humidity without condensation,operation: –10 C to +40 C at 95 % max. relative humidity without condensation;

IT8000-AC-*-Ex2/22

Supply voltage 110 V (–15%) to 240 V (+10%),frequency: 50 / 60 Hz,current consumption: max. 0.3A,power consumption: max. 25 VA;

Connecting values

IT8000-DC-*-Ex2/22

Supply voltage 12 V (–15%) to 30 V (+10%) DC,current consumption 1.5 – 0.5 A;

Safety Separation between primary and secondary circuits SELV, compliant to EN60950,pollution degree 2 (if not IP65), overvoltage category II;

Ex classification II 3G Ex ic nA IIC T4 Gc

II 3D Ex ic tc IIIB T50°C Dc IP54 or

II 3D Ex ic tc IIIC T50°C Dc IP65;

Display LCD dot matrix display, 120 x 32 pixels,height of characters for weights 19 mm, for IDs 9 mm;

Keyboard Membrane keyboard with tactile feedback, 32 keys incl. numeric keypad, 4 scalefunction keys, 8 function keys, entry of alpha characters via multiple keyassignment;

Data backup Battery backup for data, parameters and files (backup for approx. 1 year withoutpower supply), optional data backup on PC;

Operating system Realtime multitasking operating system, programming with RTG programgenerator;

Main module(CPU8000)

32bit/16MHz mikroprocessor 68HC0001 MByte battery backed data memory,128 kByte memory for application software,battery backed real time clock,

sockets for options:SIM1-3: 3 serial interfaces (SIM)PIM1-2: 4 optoisolated inputs/outputs (PIM) or

1 analog output (DAU15)X8-11: 1 interface extension module (FBM) or

1 Profibus module (PCM)ADM1-2: 2 scale interfaces (ADM) or

1 digital scale interface (DWM) or1 IDNet scale interface (IDN);


13.2 Options

Interface extension moduleFBM

Interface extension module with socket for fourth serial interface;

Profibus DP modulePCM

Interface extension module with Profibus DP interface;

Ethernet moduleECM

Interface extension module with Ethernet interface;

Analog scale interfaceADM / ADC

Connection of a scale base with analog loadcells, 50 opdates / second,overall impedance of all connected loadcells 21

Digital scale interfaceDWM

Weighing module to connect one digital scale base with RS485interface;

IDNet scale interfaceIDN

Weighing module to connect one digital scale base with IDNetinterface;

Serial interfaceSIM-RS232

Baudrate 300 - 19200 Baud,lenght of cable max. 15 m;

Serial interfaceSIM-20mA

Baudrate 300 - 9600 Baud,lenght of cable max. 1000 m (option); transmitter and receiver passive;

Serial interfaceSIM-RS485 2-wire

Baudrate 300 - 19200 Baud,lenght of cable max.. 1200m (option);

Serial interfaceSIM-RS485 4-wire

Baudrate 300 - 19200 Baud,lenght of cable max. 1200m (option);

Serial interfaceSIM-RS485-Opto

Baudrate 300 - 19200 Baud,lenght of cable max. 1200m (option); optoisolated;

Parallel inputs/outputsPIM

2 inputs: 24 VDC / 7 mA,

2 outputs: 24 VDC / 100 mA,

potential separation with opto couplers,external power supply must provide SELV voltages;

Analog outputDAU15

1 analog output for gross or net weight,

selectable 0 - 20 mA, 4 - 20 mA, 0 - 10 V, 2 - 10 V;


13.3 Ex-Relevant Electrical Data For Type Of Protection 'Ex-nA'

13.3.1 Supply Voltage IT8000-AC-*-Ex2/22

ConnectionCPU8000-230V-Ex2/22

Terminal KL6(cable with free ends)

DescriptionNominal connection values

(Ex-nA)

KL6.1

(brown wire)

L

AC supply(cable ends)

KL6.2

(blue wire)

N

110-240 VAC -15%/+10%300 mA

13.3.2 Supply voltage IT8000-DC-*-Ex2/22

ConnectionCPU8000-24VDC-Ex2/22

CPU8000-NTP-Ex2/22Terminal KL6


(Ex-nA)

KL6.1 +VDC supply

KL6.2 0 V

12 - 30 VDC +10% / -15%1,5 – 0,5 A

13.3.3 Serial interfaces SIM1-4

Module(socket SIM1-4)

CPU8000 KL1-3FBM KL1


(Ex-nA)

KLx.1 TxD ±12 VDC

KLx.2 RTS ±12 VDC

KLx.3 RxD ±12 VDC

KLx.4 CTS ±12 VDC

SIM-RS232

KLx.5 GND ±12 VDC

KLx.1 A (TxD+/ RxD+) 5 VDC

KLx.2 B (TxD - / RxD -) 5 VDC

KLx.3 A (TxD+/ RxD+) 5 VDC

KLx.4 B (TxD - / RxD -) 5 VDC

SIM-RS485-2-wire

KLx.5 – –

KLx.1 TxD+ 5 VDC

KLx.2 TxD– 5 VDC

KLx.3 RxD+ 5 VDC

KLx.4 RxD– 5 VDC

SIM-RS485-4-wireSIM-RS485-OPTO

KLx.5 – –

KLx.1 TXIN 12 VDC / 20 mA

KLx.2 TXOUT 12 VDC / 20 mA

KLx.3 RXIN 12 VDC / 20 mA

KLx.4 RXOUT 12 VDC / 20 mA

SIM-20mA

KLx.5 – –


13.3.4 Parallel / Analog Interfaces PIM / DAU15

ModuleCPU8000terminalKL4, KL5

DescriptionModule installed

on CPU8000socket

Nominal connection values(Ex-nA)

KL4.1 OV – 10 VDC / 100 mA

KL4.2 +10V – 10 VDC / 100 mA

KL4.3 IN0 PIM1 24 VDC / 7 mA




KL5.1 IN- – 24 VDC / 28 mA

KL5.2 OUT0 PIM1 24 VDC / 100 mA




PIM

KL5.6 OUT+ – 24 VDC / 400 mA

KL4.1 – – –

KL4.2 – – –

KL4.3 I+ PIM1 10 V / 20 mA

KL4.4 I– PIM1 10 V / 20 mA

KL4.5 I+ PIM2 10 V / 20 mA

KL4.6 I– PIM2 10 V / 20 mA

KL5.1 – – –

KL5.2 U+ PIM1 10 V / 20 mA

KL5.3 U– PIM1 10 V / 20 mA

KL5.4 U+ PIM2 10 V / 20 mA

KL5.5 U– PIM2 10 V / 20 mA

DAU15

KL5.6 – – –

13.3.5 Profibus DP Interface PCM

ModulePCM

terminalDescription

Nominal connection values(Ex-nA)

KL1.1 RTS 5 V / 240 mA

KL1.2 Gnd 5V 5 V / 240 mA

KL1.3 +5 V 5 V / 1 mA

KL1.4 B Line 5 V / 1 mA

KL1.5 A Line 5 V / 1 mA

KL1.6 B Line 5 V / 1 mA

PCM

KL1.7 A Line 5 V / 1 mA


13.3.6 Ethernet Interface ECM

ModuleECM

RJ45 connectorDescription

Nominal connection values (Ex-nA)compliant to IEEE 802.3

1 Tx+ IEEE 802.3

2 Tx– IEEE 802.3

3 Rx+ IEEE 802.3

4 Rx — IEEE 802.3

5 Not used IEEE 802.3




ECM

Shield Chassis Ground IEEE 802.3

13.3.7 Analog Scale Interface ADM / ADC

Module ADM/ADC terminal Description Nominal connection values (Ex-nA)

KL1.1 +Excitation 5 V / 240 mA

KL1.2 – Excitation 5 V / 240 mA

KL1.3 +Sense 5 V / 1 mA

KL1.4 – Sense 5 V / 1 mA

KL1.5 +Signal 5 V / 1 mA

ADM/ADC

KL1.6 – Signal 5 V / 1 mA

13.3.8 Digital Scale Interface IDN

Module IDN terminal Description Nominal connection values (Ex-nA)

KL1.1 TxD— 12 V / 20 mA

KL1.2 TxD+ 12 V / 20 mA

KL1.3 RxD— 12 V / 20 mA

KL1.4 RxD+ 12 V / 20 mA

KL1.5 0 V 0 (12 V) / 150 mA

IDN

KL1.6 +12 V (150mA) 12 V / 150 mA

13.3.9 Digital Scale Interface DWM

Module IDN terminal DescriptionNominal connection values

(Ex-nA)

KL1.1 Tx A (Tx+) 5 V

KL1.2 Tx B (Tx—) 5 V

KL1.3 Rx A (Rx+) 5 V

KL1.4 Rx B (Rx—) 5 V

KL1.5 0 V 0 (12 V) / 320 mA

DWM

KL1.6 +12 V (320mA) 12 V / 320 mA


14 Annex

14.1 ACK/NAK-ProtocolIn group 1 of the Service Mode the transmission protocol for the serial interfaces can be selected. Ifthe ACK/NAK-protocol is selected, data transmission is made as per the following pattern:

IT8000-Ex2/22 PC

Control Character / Data Example Comment

Start character STX can be selected or deselected in Service Mode

Data fields in ASCII-format Consec.-No.

Date,

Gross,

Net

sequence of data fields with their length, position ofdecimal point, etc. depends on application program (e.g.IT8000 BASIC, IT8000 COUNT, etc.), see also productrelated Installation Instructions.

End character ETX can be selected or deselected in Service Mode

Checksum XOR can be selected or deselected in Service Mode, options:XOR, compliment of two, no checksum

PC IT8000-Ex2/22

Control Character Comment

ACK positive confirmation for correctly received data string

or

PC IT8000-Ex2/22

Control Character Comment

NAK negative confirmation for not correctly received data string

The IT8000-Ex2/22timeout delay for the reception of ACK or NAK is 6 sec. If a response cannot bereceived within 6 sec or if a negative response is received (NAK), the transmission of the data string isrepeated up to 4 times. If after a total of 5 transmission attempts a response cannot be received or ifonly negative responses are received, an error message is indicated on the display of the IT8000-Ex2/22 terminal which must be acknowledged by the operator. The operator has the choice either tostart the transmission anew (e.g. after rectifying the problem) or switch off the data transmission.

As an alternative to the ACK/NAK protocol, several other transmission protocols can be selected in theService Mode: DUST3964(R), RK512 telegram, and No-ACK (same as ACK/NAK, however withoutconfirmation).


14.2 Exchange Of EPROMs

Ex

W A R N I N G

Before opening the housing to replace EPROMs make absolutely sure that all power sources tothis instrument are disconnected and that no potentially explosive atmosphere can be presentat any time!


Only permit qualified personnel to service this equipment!

Observe precautions for handling electro static sensitive devices!

The program in the IT8000-Ex2/22 terminal resides in 3 EPROMs located on the CPU8000 board. Theoperating system with the basic system functions is contained in 2 EPROMs labelled with 'RTP xxx'and a serial-No. The suffix 'xxx' represents the version (e.g. '5.01'). The labels of the two EPROMsfor the operating system differ in the last character attached to the version-No.: 'L' for 'LOWER' and'H' for 'HIGHER'.

The application program (BASIC, COUNT, etc.) is contained in the third EPROM that is usuallyunlabelled. The application program stored in the third EPROM works only in conjunction with theappropriate version of the RTP operating system! If the version of the operating system supplied isidentical to the version already installed in the IT8000-Ex2/22 (identical serial-Nos.), only the EPROMwith the application program needs to be changed.

Layout of CPU8000 board

EPROM with RTP operating system EPROM withEPROM with suffix 'L' LOW (left) application program

EPROM with suffix 'H' HIGH (right)

Note: Make sure only to insert EPROMs with notch pointing up (to the middle of the board)! EPROMsinserted in the wrong direction are inevitably destroyed on power up!


14.2.1 Replacing A Complete Set Of EPROMs

(New version of operating system and/or new application program)

Open the housing and refer to sketch shown above to locate CPU-board.

If CPU is fitted with piggyback board, remove carefully by lifting it with both hands.

Use small screw driver or other suitable tool and remove EPROMs carefully from sockets.Exercise care not to damage components and printed circuits underneath the EPROMs.

Insert new EPROMs into sockets and make sure that all pins are properly aligned and fit intosocket.

If piggyback board had to be removed, insert it at its old location.

Remove jumper W10, wait approx. 20 sec and put it back in place. This clears the RAM onthe CPU board, and on power up the Service Mode settings are automatically loaded fromFlash-EPROM.

Close housing and fasten all screws tightly. Switch on power and/or plug in line cord.

Immediately after power up enter Service Mode, group 6 (Hardware Diagnostics), subgroup6 (Delete Memory), and choose 'Delete Memory Y' and 'Factory Reset Y'.

Now the terminal carries out a restart and the message 'Save Parameters, Please Wait...'appears on the display while the default settings are loaded into the Flash-EPROM.

Important note: By no means switch off power during this operation, because that willinevitably destroy the contents of the Flash-EPROM and thus the program.

14.2.2 Replacing The CPU Board

(Transfer old EPROMs to new board)

Use PC program 'Backup&Restore' to save settings and volatile data, if that is not possible,at least write down Service Mode settings.



Use small screw driver or other suitable tool and remove EPROMs carefully from sockets.Exercise care not to damage components and printed circuits underneath the EPROMs.

Insert old EPROMs into sockets of new CPU and make sure that all pins are properly alignedand fit into socket.

Install new CPU in weighing terminal, if piggyback board had to be removed, insert it at itsold location.

Remove jumper W10, wait approx. 20 sec and put it back in place. This clears the RAM onthe CPU board, and on power up the Service Mode settings are automatically loaded fromFlash-EPROM.


Restore settings and data with PC program 'Backup&Restore' or enter settings as writtendown. In any case check Service Mode settings.


14.2.3 Replacing The Flash-EPROM

(New version of application program)

Use PC program 'Backup&Restore' to save settings and volatile data, if that is not possible,at least write down Service Mode settings.



Use small screw driver or other suitable tool and remove Flash-EPROMs carefully fromsocket. Exercise care not to damage components and printed circuits underneath theEPROM.

Insert the new Flash-EPROM into socket and make sure that all pins are properly aligned andfit into socket.

If piggyback board had to be removed, insert it at its old location.


On power up the display remains dark for several seconds while the Service Modeparameters are copied from the CPU's RAM into the Flash-EPROM.

Important note: By no means switch off power during this operation, because that willinevitably destroy the contents of the Flash-EPROM and thus the program.

Restore settings and data with PC program 'Backup&Restore' or enter settings as written down.In any case check Service Mode settings.


14.3 Replacing The Battery

Ex

W A R N I N G

Before opening the housing to replace the battery make absolutely sure that all power sourcesto this instrument are disconnected and that no potentially explosive atmosphere can bepresent at any time!


Ex

The battery must only be replaced by qualified personnel (see chapter 'Installation') authorizedby SysTec GmbH. Replacement must only be carried out in a de-energized state and in theabsence of any potentially explosive atmosphere.

Replace only with 3V Lithium battery of type Varta CR ½ AA. Observe correct polarity!Disposal of used batteries only as indicated by manufacturer.

3V Lithium batteryType: Varta CR ½ AA

observe polarity

The life time of the lithium battery that backs up RAM and realtime clock is at least three years innormal operation. Thus, the battery needs to be replaced at 3-year intervals by a trained servicetechnician.

To replace the battery, service kit 16ZUB001 is required. This kit consists of a 3V battery (2 size AAalkaline batteries in row), incorporated in a plastic housing with 2 connecting leads, LED and switch. Ifswitch is on, LED must be lit to indicate that voltage is higher than 2V. If this is not the case batteriesmust be replaced.


To replace the battery proceed as follows:

Disconnect all power to the instrument, unplug line cord.

Open the IT8000-Ex2/22 housing and refer to picture below to locate CPU8000 board.

Use small screw driver or other suitable tool and carefully remove bracket from battery holder.

Switch on service kit, LED must be lit. Connect leads with test clamps at battery holder. Do notshort circuit, observe polarity!

Carefully remove old battery from holder and insert new one. To prevent loss of RAM contentsmake sure that test clamps do not come off.

Remove test clamps, put bracket of battery holder back in place.

Close housing and power the instrument up. Display of IT8000-Ex2/22 shows power upmessage. The unit is operational again.

Connection of service kit for change of battery:

Service kit Lithium batteryArt.-No. 16ZUB001


14.4 Combination Of OptionsThe interface boards to connect digital force transducers (IDN, DWM) as well as the extensions forfieldbus and Ethernet connection (FBM, ECM) use the same serial interface COM4 for the internalcommunication, i.e. it is not possible to use more than one of these options at a time. The rating of theIT8000 power supply is 5V (2A max.). All other voltages are generated from this supply by means ofDC/DC converters. Thus, it must be made sure that the 5V power supply is not overloaded (e.g. by theconnection of digital force transducers). This leads to restrictions for the combination of severaloptions as shown in the following table.

Ex

W A R N I N G

Only the combinations of options shown below must be used. Other combinations may lead tooverheating of the electronics and the risk of explosion.

Scale interfaceADC / IDN / DWM

Analogloadcells

(350 )

OptionFBM or ECM

OptionPCM

Auxiliary voltage10VDC / 100mA

Yes —1 or 2 ADM/ADC

max. 16 inany

combination — YesYes

1 IDN — — Yes —

1 DWM (I 210mA) — — Yes —

1 DWM (210mA I 320mA) *) — — — —

1 IDN1 ADM/ADC

max. 8 — Yes —

1 DWM (I 210mA)

1 ADM or ADCmax. 4 — Yes —

1 DWM (210mA I 320mA) *)

1 ADM or ADCmax. 4 — — —

*) The current consumption depends on type and number of the connected force transducers. A setof 4 digital HBM C16i loadcells -for instance- has a typical power consumption of 200mA.


15 Dimensions

Desk-top installation Wall-mount installation

Holes for wall-mount installation

Panel-mount housing Cutout in front panel

Blackbox housing (type S2)

Date post:	14-Oct-2020
Category:	Documents
Upload:	others
View:	22 times
Download:	0 times

IT8000-AC-W-Ex2/22 IT8000-DC-W-Ex2/22 IT8000-AC-E-Ex2/22...

Documents