Hello.

I Did a modification in a Wincc that it working correctly. I introduce 3 variables that are a combination of others. I did it with a Script and I only use the variables in the Script. Then I introduce the variables in TagLogging, and I won´t to put it in a Trend. When I put it in the trend control, it say me that the value is not valid or there isn't a connection.

Do you know what can I do?
It´s necessary that all the variables in the Tag Logging are in the PLC, or the variables can be internal tags

Thank you for the answer, and sorry for my english

 

> I Did a modification in a Wincc that it working correctly. I introduce 3
> variables that are a combination of others. I did it with a Script and I
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I have the same problem