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opc tags

Hello, I have the labview 8.6.1 installed in my pc with DSC module, and to communicate with a PLC through shared variables engine, sometimes there are variables that do not update their status. Thus, I decided to make a very simple test, which consisted of placing a timer and write information in tags after the timer done,  PLC side, the labview to interpret the value of the tags are different from a default value,  increment a counter, and put back the default values in the tags, the PLC start a new count when the variabes have the default value. What succede is that information arrives at manager variable, but the variables inside the vi, do not update their status.

I do not know what to do to resolve this situation, anyone have any idea?

 

Thanks 

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