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Why is TagDebug always reading zero in Powerlogic Scada?

Issue
TagDebug is always reading zero.

Product Line
Powerlogic Scada 7.x

PowerScada Expert 8.x

Environment
Reading tags.

Cause
If you are using TagDebug in Powerlogic Scada to read the real time values for one of your variable tags and you see that the value is zero, then can mean 1 of 2 things:
1- The real time value for this tag is zero.
2- The tag is not communicating which will result a value of zero as well.

Resolution
TagDebug doesn't return the error of #COM when the tag is not reading in PowerLogic Scada, instead it will return zero. To check if the tag is actually in communications,
you can try to put the tag as a numeric value on the screen. This will show you if the actual value for the tag is zero or #COM.

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