Unable to write OPC Value

[Dons]

I have configured the opc server correctly but I can only read the values.
When I try to write values, Scada Communicator gives me an error.
In the log file the error shown is “Illegal Command”.
What can be the mistake?

In the following link there is the image of the Scada Communicator.

Image

Thanks in advance for the help.

• This topic was modified 2 years, 10 months ago by Mikhail.

[Mikhail]

Please check the error details in communication line log.

[Dons]

The communication log tell me only “Illegal Command”.

You can read the log file at this Link

[Mikhail]

So, what is the configuration of the OPC driver related to writing tags?

[Dons]

I found the problem. If I am connected to the opc server with more than 1 client, the second client is unable to send the commands. This is an opc server problems.

[Mikhail]

Thanks for the info. If possible, move from classic OPC to OPC UA.

[Author]

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