Re: [foxboro] Read back feature of FBM233 with OPC
- From: "Doucet, Terrence" <tdoucet@xxxxxxxxxxxxxxxxxx>
- To: <foxboro@xxxxxxxxxxxxx>
- Date: Fri, 17 Oct 2008 18:00:01 -0400
When you use an IA output, it will write to the entire word in the PLC that it
is connected to. The PLC word must be under the control of one MASTER only. If
the PLC must write to bits in this word, you must send the state to an IA input
block and then connect the IA bit in the input parameter of the IA output block.
I do not believe that multiple MASTER's are permitted.
Terry
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