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 Project Details
 Domain  CNG Compressor
 Project Name  Motor Driven CNG Compressor Automation
 Client  Atlas Copco
 Project Highlights Online Scada (WinCC) on GSM Network, HMI Key Operation from External Push Buttons on Flameproof Panel
System Configuration
1 PLC/Drives : S7-315-2DP- system,s7-200,MD-720 Modem for GSM.
2 HMI :  OP-77A.
3 Communication Protocol :  Modbus RTU communication with Emerson Flowmeter.
4 IO Count : 100
5 Software :  Simatic Manager, WinCC, WinCCFlex.
 Project Synopsis
Automation system for Compressed Natural Gas Compressor. This compressor is used at retail distribution centres. A redundant CPU system is used for enhanced availability. PLC and HMI are mounted in a flameproof panel. HMI operation is done using inputs of external keys to PLC, mounted on the flameproof Panel. Online data, trends and alarms are made available on Central WinCC station (SCADA) for 5 Compressor which is on wireless GSM Network. Inlet gas flow and discharge gas flow is provided on local HMI as well as SCADA for observation. The flow meter communicates with PLC using Modbus RTU Protocol.

The scope of work included:

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