- Qinhuangdao Port
- Matilda’s Planet
- Cardiff International Sports Village
- Columbus Stainless (Pty)
- Tata Steel
- Dairy Crest
- Dupont
- Hulamin Rolled Products
- Cardiff Harbour Authority
- Richards Bay Coal Terminal
- Solutia (UK)Ltd
- Shenhuo Aluminium Foil Co.
- Skip hoist drive and control system
- Roll Former 20
- Texaco
- Welton Packaging
- Zodiac Hot Dip Galvanising Process Line Llanwern Works
- Tata steel
Solutia (UK)Ltd
Newport, South Wales.
the project
Alarm monitoring and emergency shutdown controls to the new Consolidated Control Room for six of the manufacturing facilities.
the solution
Each facility is controlled with a Pilz PSS3000 Safety PLC and Siemens S7- 300 Safety PLC to provide diverse and redundant hardware. Each PLC had remote IO connected using SafetyBUS and Profisafe respectively over individual fibre optic networks.
Both PLC systems connected to a Siemens WinCC SCADA package over Ethernet, which presented the alarms with differently shaped and coloured icons depending on the type of alarm. Also included was cross checking of the alarms between the PLCs, and indication if the alarms were different.