Process control system for sewage treatment plant

Renewal of the process control system and replacement of the connections between more than 20 remote stations during ongoing operation. Engineering and delivery of the complete automation technology, software development and commissioning.

Control system:

  • 22 x SIMATIC S7-300; CPU 315-2PN/DP
  • 7 x SIMATIC S7-300; CPU 315-2DP

Operating and monitoring system:

  • WinCC V7.3
    • 2 x redundant WinCC servers
    • 10 x WinCC clients
    • 2 x Remote access/stand-by
    • 3 x Acron operating stations for reporting

Bus systems:

  • Industrial Ethernet:
    • Terminal bus for the connection between the server and clients
      • Plant bus for the connection between the PLC and servers as a redundant, optical ring
      • Remote operator stations via KVMExtender

Noteworthy aspects:

  • Sinaut ST7CC used to connect approx. 25 remote operating stations
  • Implementation of an IT security concept
  • Operational readiness alerts via page control and connection to Telenot
  • Safe migration guaranteed by parallel operation (“old” and “new”)