Defining an expression tag expression from a UDT parameter

Ignition
,
1

Hello,

I am using Ignition Vision 8.1.25 and was curious if anyone has ever set up a UDT where you define an expression in a parameter and then use that parameter to define the expression in an expression tag. simple example:

image
image1348×189 17.1 KB

I have to OPC tags with live data, I want to be able to write an expression in the parameter and then use that parameter to define my expression on the expression tag.

image
image1346×443 42.8 KB

Any input would be greatly appreciated.

2

Hi @apmalone1983 I am also working on something similar, but referencing the parameter within a opc tag for the OPC source tag path. I was wondering if you made any progress with this?

3

The progress I made was they determined it can't be done at this point. Because the way the parameter is read in it won't calculate.

1 Like