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 Project Details
 Domain  Oil & Gas
 Project Name  Liquid N2 Plant Automation
 Client  Siemens, Kalwa
 Project Highlights S7 400 H System With IO Redundancy for Liquid Nitrogen Plant.
System Configuration
1 PLC/Drives : CPU: 414-H, CP443-1, CP341.
2 HMI : WinCC .
3 Communication Protocol : PROFIBUS, MODBUS,.
4 IO Count : 704 DI/DO, 72 AI/AO.
5 Software : Step 5, WinCC.
Project Synopsis

This is a redundant system (IO level redundancy) used for storage and control of Liquid Nitrogen Plant at IOCL Panipat. It also controls the compression and distribution system. The system consists of control and monitoring of air compressor, refrigeration unit, air dryers, nitrogen compressor, cold box, air turbine, waste nitrogen expansion turbine, nitrogen storage tank, nitrogen pumping and vaporization system, gaseous distribution system and Derming heater.

The scope of work included:

  1. Design of control systems.
  2. Software development
  3. Commissioning