trying to find expression to read an application property

mike_yung

posted Mar 14 '23 at 2:18 pm

I've added a custom property to my application which I'd like a VTScada I/O & calculation tag to know about. It's in the Application Section, named BarHistLenth, & has a numeric value.

Can't find a valid expression for my I/O & calc tag. Figured I better ask 'cause trying to do something that can't be done takes forever.

I've added a custom property to my application which I'd like a VTScada I/O & calculation tag to know about. It's in the Application Section, named BarHistLenth, & has a numeric value. Can't find a valid expression for my I/O & calc tag. Figured I better ask 'cause trying to do something that can't be done takes forever.

Dave - VTScada

posted Mar 15 '23 at 1:08 pm

To reference your property, simply call it in an expression using the \ prefix. ie:

\BarHistLenth

To reference your property, simply call it in an expression using the \ prefix. ie: ```` \BarHistLenth ````

Trihedral Engineering Ltd.

edited Mar 15 '23 at 1:08 pm

mike_yung

posted Mar 16 '23 at 2:53 pm

I tried the \ prefix but was told my expression is invalid. Perhaps my question was confusing. Please refer to the screengrab below. I'm looking for an expression which will read the value 12345 from my Application's Configuration.

edited Mar 16 '23 at 8:18 pm

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