Vision. Binding to not existing Tag

Ignition
1

Ignition v8.1.4 (b2021040109)

Hi,

I can’t figure out one thing.
When I have a TagPath to not existing Tag, so in the Vision I get Value = 2
Is it a BUG or what?

image

Binding on alarm:

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image1057×322 22.8 KB

As I understand, I have to get 0 in result

PS! The TRY function returns the same value

2

What if you use an indirect tag binding?

4

The same situation.

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image1057×718 45.2 KB

result:
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PumplaPath (is a String of Data Type):
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5

What’s the quality of it?

6

image

If I type a space in alarm_TagPath, so it’s Bad of Quality

7

I don’t know what’s going on with your system. Are you sure you don’t have a script writing that 2 or something?

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image1214×372 27 KB

8

this is a new window and there is no scripts which are writting to it…
just this expression binding to this customized parameter…

9

Can you try setting all the expression related loggers to TRACE in the designer and triggering the binding?
image

10

Can't figure out how to trigger it :thinking:

11

it's strange... but when I open this Window, so nothing's happen..
When I open other Windows, I get messages...