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Donald Pittendrigh

Hi All PLC restart running is not an error message, it is a status message and means the PLC and OP communications is being initialised. The next message would be PC restart completed, but you will only see this when the comms has been successfully initialised, which is presumably not happening. Cheers Donald Pittendrigh

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Donald Pittendrigh

Hi All This solution depends the use of FAP ar Free ASCII Protocol, if you are using Profibus interface for comms, (and I am sorry I missed the earlier posting so I don't know if you told us this) then the problem may lie elsewhere, so lets start by getting the hardware definition straight. Cheers Donald Pittendrigh

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Michael Griffin

At 08:13 30/01/01 +0200, Donald Pittendrigh wrote: <clip> >This solution depends the use of FAP ar Free ASCII Protocol, if you are >using Profibus interface for comms, (and I am sorry I missed the earlier >posting so I don't know if you told us this) then the problem may lie >elsewhere, so lets start by getting the hardware definition straight. <clip> Well, no actually it doesn't. I don't believe I've ever seen FAP used for the connection I described, and this is by far the most common connection I have seen with a 95U. AS511 seems to be the more common selection for this. The original question from "Ronny" didn't mention the type of connection he was using. Going from previous experience though, I would guess that he didn't realise that he had to have a program running with the special function block in the PLC in order to get the OP to talk to it through the program port. This seems to be a common mistake people make when dealing with this for the first time. ********************** Michael Griffin London, Ont. Canada [email protected] **********************

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