Enable / disable a data type tag according to a datatype parameter

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1

hello,
How can I enable / disable a data type tag according to a datatype parameter?
for example if my_parameter = 1 deactivate tag_A.
if my_parameter = 2
deactivate tag_A and tag_B

Thanks a lot

2

This isn’t possible as far as I know.

But maybe you shouldn’t ask your question geared towards a certain solution, but consider the actual problem you have.

I believe you have two structs that are very similar devices, but with a small difference. In that case, you could work with datatype inheritance: create a parent datatype that has all the common tags, and create two child datatypes that add specific tags.

https://docs.inductiveautomation.com/display/DOC80/UDT+Inheritance

3

thanks for your answer.
I wanted to avoid creating several datatype.
I think I can do something with parameter binding

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4

Hi, I'm having this issue too, where it seems I can't programatically enable/disable a tag within a UDT. The enable binding doesn't appear to resolve the parameters at runtime. I've also tried to link it to a tag within the UDT (as pictured) with no success. Has anyone had success with this?

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5

...and the version where I'm trying to use parameters

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6

Have you tried just writing the simple python True or False values? (I don't think you can programmatically create bindings--at least, not with any write operation. Perhaps with system.tag.configure.)

7

Hey Phil,

Yep the old true or false works a treat, I was just trying to be a bit smarter.. perhaps I will just need to cut my losses and script it.

Cheers

8

Seems like it will only resolve for single property bindings - as soon as there is an expression or tag binding via expression - it stops working.