Change a label text based on multiple dynamic tag

Ignition
1

Hello everyone,

I’m making a perspective view of an analog signal which shows the value, the engineering units and the status of the 4 alarm level (High, HighHigh, Low, LowLow).

In this view I created a Parameter called TagPath where I set the path of the UDT “Analog_Signal” that contains all the tag mentioned before and many others.

My problem is that I have a single label where I want to show the text of the 4 alarm with the format “HH,H,L,LL” based on which alarm is active (with priorities on the HH and LL) but I can’t find a way to check all the 4 bits (which are created dynamically since the use the parameters “TagPath”).

Any idea if it’s possible to do without using 4 different labels on top of each other?

2

I would suggest that you would set up alarms on the analog signal that correspond to the setpoints for the H, HH, L,LL levels on the value. Then you can make a simple tag/Alarms/HighestActivePriority binding that changes the status based on that highest priority alarm.

3

All the things you mentioned are new to me, I’ll try them and let you know if it works.

Thank you so much

1 Like
4

What David suggests is probably the best way to do it.

But for future reference, the way you could do it that you were trying to do it:
Create custom props on your view: 1 for each alarm level. Place an indirect tag binding on each of them that yields a Boolean. Then in your label, create an expression binding that references those custom props instead of the tags themselves.