Change Value of External Tags in WinCC 7.4

2 posts in this topic


Im trying to change the value of my external tag DB31, DW54. My plan is for the user to input the values in the I/O field and click a button to change the value of the external tag. My problem is I can only do it through left click event direct connection on the button but it can only change the value once. How do I do this dynamically in runtime?



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Could you please supply some more information regarding your setup ?

Hardware - PLC type and model, HMI type and model.

Software - Type/types and version.

Then it's much easier to understand your question and give you any assistance.

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