S7 control how does it works?

Industrial
1

Can some one give me an example of how works the node s7 control?
I have read the documentation but I still don't understand how to use it, for a while it worked but now it doesn't work anymore.
This is my use case

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EDIT: I need to read the variables only on trig

2

Which kind of errors are you getting on your debug window?

3

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