Query tag referencing separate tags

Ignition
1

I have a string containing the date and time in a format that is able to be compared to the Unix time of t_stamp for Historian tags. I want to use the same query tag to run the same query every couple hours with only the t_stamp being referenced changing. I’m having an issue running a query while referencing an Ignition tag with {[.]Tag Name} even though {[.]Tag Name} is grabbed from the tag icon available in the expression editor.

Is a query tag able to reference an Ignition tag, and if not, what would be the best way to run a dynamic query and store that value in a tag?

2

Did you find a solution to this?

3

This is possible, one thing that is easily missed is that if your query doesnt return a result set, you will get the "Error_ExpressionEval". So make sure that the query that is running is indeed returning good data.