MIGRATION OF CEMENT GRINDING MILL

Migration of the complete process control system of a cement grinding mill during ongoing operation.

Control System
6 x SIMATIC S7 400, CPU 416-3DP
1 x SIMATIC S7 300, CPU 315-2DP

Visualisation System
PCS7 V8.1 with CEMAT V8.1
• Before migration: PCS7 V6.1 with CEMAT V6.1
• Redundant PCS7 server system
• PM-Server (Siemens PM-Quality/ PM-Control as Process Management System)
• 6 x PCS7 Clients


1 x PCS7 Engineering Station

Network System
Industrial Ethernet
• connection between the PLCs and the visualization system


Profibus
• local connection of distributed IOs

Speciality
Prior to migration the old SIMATIC S5 control components had to be exchanged with current control components within a very short time


Parallel operation of old/current process control system until all the controls/plant parts had been updated step-by-step to the current PCS7 version


Prevention of prolonged downtimes or loss of production due to step-by-step migration/parallel operation