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 Project Details
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 Domain  Power Transmission
 Project Name  2250 MW TPS-II Expansion Project
 Client  Siemens, Kalwa
 Consultant  TCE, Bangalore
 Project Highlights S7417H PLC is acting as Gateway to AB PLC, Simocode Pro-V & 7SJ relays through Modbus
System Configuration
1 PLC/Drives : S7 417H, Y-Coupler, CP341, Simocode Pro-V, 7SJ relays.
2 HMI :
3 Communication Protocol : Profibus, Modbus RTU Slave.
4 IO Count :198 Simocode Pro-V, 15 7SJ6 relays on 22 Y-Links.
5 Software : Step 7, SIMOCODE ES, DIGSI.
Project Synopsis

This Project is Part Of 2X250 MW TPS-II Project Of Neyveli Lignite Corporation. The system uses a redundant S7-417H System to control & monitor status of various Feeders, Incomers, Bus-Couplers and Power relays of MCC & PMCC areas.

The MCC & PMCC are controlled through latest state of art switch gear devices such as Simocode PRO-V & 7SJ series of relays which communicate on Profibus with S7 417H system. This controls 198 Simocode Pro-V and 15nos 7SJ series relays of MCC , PMCC area , S7417H PLC sends all collected electrical data & status from Simocode PRO-V and 7SJ series relays to AB PLC through CP341 MODBUS link. It also sends commands from the AB PLC to the devices.

The scope of work includes:

  1. Design and supply of control systems and cabinets.
  2. Software development & Commissioning