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  1. Smilymiley

    PLC multi linking to DCS

    Thanks Jmancan. Lead you up the garden path there a bit. All critical control is to be hardwired. Just one more point, What would be the position with the time delays that this setup will introduce? Isn't there a chance that events may be recorded 'out of sequence' if the PLC's are wired in...
  2. Smilymiley

    PLC multi linking to DCS

    We are currently supplying a client with 2 PLC's, one for system management and one for system control. The control PLC incorporated all the shutdown signals. Our client is requesting that we serial link the 2 PLC's together with an onward serial link to their overall control DCS system. Serial...

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