The Siemens S7 PAC and KTP600 operator panel were configured using the newly released Siemens programming tool TIA Portal. Case Study - Control, Rubber Cure s The S7 required a comms module to be fitted to allow a connection to the existing Modbus RTU comms network. The Siemens S7 based system replaced two AB PLC500 PLCs. The sophisticated control strategy was developed by reverse engineering a Eurotherm PC3000 system that Arun Control Systems had been developing on this site for a number of years. integrated control and monitoring systems go to paperless chart recorders go to paperless chart recorders go to instrumentation go to instrumentation go to instrumentation go to instrumentation go to instrumentation go to instrumentation go to instrumentation go to instrumentation go to instrumentation