maxDNA
• maxDNA is name of control system. • maxDNA is developed by Metso Automation USA.• maxDNA widely used for power plant automation.• First maxDNA control supplied to RRVUNL Kota Unit-6.• All the modules supplied to Kota unit were imported from USA.• From then all the modules are being manufactured at our EDN
Bangalore unit.• maxDNA control system is customized for specific application.
maxDNA CONTROL SYSTEM
maxDNA - BASIC COMPONENTS
MAXNET Network
MAXSTATION
Remote Processing Unit
IO
SIGNALS
DPU
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
DPU
DPU
Switch A
Switch B
maxDNA THE REMOTE PROCESSING UNIT
(Control Cabinet)
The equipment includes
DPUsField I/O modulesField terminationsCommunication networksPower supply unit
240V AC to 24V DC converter
Cooling Fan Rack
Rack 1
Rack 2
Rack 3
Primary DPU
Sec. DPU
IO modules
Connectors
CONTROL PANEL HARDWARES
Power Supply Module
Network A port
Network B port
DPU Backup Cable
Network Healthy
Backup Indication
Reset Button
Takeover Button
Mode Switch
Run - F
DPU 4F
DPU,WKS & N/W SWITCHES ADDRESS
Control Panel ( Rear View)
Terminal Block
maxDNA RPU COMPONENTS
•The Distributed Processing Unit (DPU4F) is the process controller.
•The Model 4F Distributed Processing Unit (DPU) is a multifunction controller and data acquisition processor that executes
control algorithms, sequence logic, sequence of events time tagged to 1 ms
resolutiondata acquisition.
maxDNA DPU4F (CONT.)• The heart of the DPU is a database called
the Distributed Point Management System (DPMS). The DPMS is fully aware of the tag names, hierarchy, and other text attributes of its configured points. It is loaded with a configuration created by the Systems engineer and executes that configuration to provide the control and data acquisition functions required.
• The DPU 4F resides directly on the MAXNET communications network without the need for servers.
PS
PS
PS
PS
PS
PS
DPU
I/OI/OI/OI/OI/OI/O
I/OI/OI/OI/OI/OI/O I/OI/O
DPU
I/OI/OI/OI/OI/OI/O
Switch
Switch
I/OI/OI/OI/OI/OI/O I/OI/O
Schematic arrangement of RPU Cabinet
IOP382 eight pack rack
I/O Bus Connector
Field 24V
Field 48V
System 24V
I/O Bus Connectors
maxDNA RPU Cabinet
IO Racks
Use a ribbon cable to interconnect in daisy chain style two or more adjacent I/O chassis assemblies in the same I/O cabinet group. One end of the ribbon cable plugs into P10 of the first I/O in the string. The other end of the ribbon cable connects to P9 of the next I/O in the string. Continue this P10 to P9 sequence until the last I/O in the string is reached. See Figure.
Terminator
P9
P10
P11
P9
P10
P11
P9
P10
P11
P9
P10
P11P9
P10
P11
P9
P10
P11
P9
P10
P11
P9
P10
P11
maxDNA RPU Cabinet
Ribbon Cable
I/O Connector
Backplane Rack
maxDNA I/O Modules
Analog Input Digital Input
Part Number Description Part Number Description
IOP301 Isolated analog input; 16 channels IOP330 24 Vdc common input; 16 channels
IOP302 4-20mA common input; 16 channels IOP334 24 Vdc isolated input; 16 channels
IOP303 3-wire RTD input; 8 channels IOP351 Form A/B relay; 16 channels
IOP304 Thermocouple/emf input; 16 channels
IOP305 Voltage common input; 16 channels
Analog Output
Part Number Description
IOP320 4-20 mA common output, 8 channels
• Bus address 00 to FF (256) • DI module address – 0 to 31• AO & DO module address – 32 to 252• DI Module – one bus address• DO module – one bus address• AI module – two bus address• AO module – eight bus address
TYPES OF I/O MODULES USED
I/O Module
Address Switches
Dongle Card
DONGLE CARD
• LICENCE KEY TO USE MAX DNA SOFTWARE
• INSTALLED ON COM PORT WORK STATIONS
• DIFFERENT SOFTWARE FOR EWS/OWS DONGLE
COMMISSIONING SEQUENCE
A- PANEL POWER-UP• Check cabinet installation as per drawing( system O&M manuals).
• Check for any physical damage.
• Checking of hardwares as per configuration diagram.
• Verify I/O module addresses.
• Verify that modules are properly inserted in back plane.
• Ensure that DPU mode switch is kept at F.
• Verify that all backplanes are connected with ribbon cable and terminator is put to last backplane slot.
• Remove all P2/P3 connectors from the I/O modules to isolate field terminations.
• Ensure the panel electronic & power supply ground earthing.
• Ensure that no wirings are loose terminated.
• Check for power supply before power-up.
• Ensure that power supply connectors are properly connected to backplanes.
• Switch on power supply and check for 24VDC supply.
• Observe that DPUs boot-up and LED indications.
B-COMMUNICATION WITH EWS• Set the EWS and connect the peripherals including respective dongle card.• Boot-up the EWS• maxStartup program automatically start and minimizes.• maxStartup software version is 4.2.1.SP-2• Without dongle card maxStartup program can not be started.• Power on network switches• Connect the network cable as per layout• Establish the communication with EWS.• Verify the DPU address at EWS.• Load the application software and verify the “ACTIVE” LED of I/O module are
green. ACTIVE indication should not blink.• Unfreeze the outputs. All the outputs freezed when full application software is
loaded to DPU.• Connect P2/P3 connectors sequentially and proceed for loop checking.