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I am building an application using the Siemens S7 PLC and the West Instruments MLC 9000 temperature controller. The system is controlled by LabVIEW on a PC with an OPC server, over RS232. I would like to know whether I would do better to control the MLC 9000 from the PC via the PLC over profibus or go straight from the PC to the MLC 9000 using a 485 connection.
I am also interested to hear any problems from people have had with the MLC 9000.
I am also interested to hear any problems from people have had with the MLC 9000.