The tag({PathToTag}) doesn't work correctly in alarm expression binding

Ignition Early Access
1

Hi

I try to get value of the current tag with tag({PathToTag}) expression binding in the Alarm Display Path, but it always return -1.

As {PathToTag} is always string type and show what is the tag Path it should work with tag() function.

2

Wondering if you need the provider supplied? What version?
Also, if it’s relative, try using relative addressing tag('[.]../tag')

3

I already add provider in tagpath. 8.0.12
Doesn’t work

4

What happens if you add quotes?

'{PathToTag}'
5

@nader.chinichian
Works for me in 8.1.0-STABLE.
I have a UDT called ForumTest with a child tag called RandomDouble2
Here are the following results:

{PathToTag} # gives me ForumTest/RandomDouble2

tag({PathToTag}) # gives me the tag value 86.393

tag('{PathToTag}') # gives me ForumTest/RandomDouble2/Alarm
6

Hi
Thanks it seems you are right in 8.1 release.
By the way isnt it {PathToTag} string? So why we have to add "?

7

{PathToTag} is a string. You don’t have to add “” to get a tags value (Your original code would have worked tag({PathToTag})).

I’m actually not sure why the below returns ForumTest/RandomDouble2/Alarm

 '{PathToTag}'