Write a value to Master UDT Parameter

Ignition
1

Hi All,

I am using Ignition Version 8.0.15.

I want to write a Value to a Master UDT parameter from a Tag.

Thanks in Advance,
Suresh

2

Hi.
Did you find a way to do it?
Thanks.

3

Hi Edward,

I have used the Tag Event Script to write the value to UDT parameter.

system.tag.write("[.]/Parameters.Value_Change", "5.5")

Thanks,
Suresh

4

Hi Suresh,
Thank you for the reply.
It seems like you're writing to an instance parameter. I'm actually trying to write to the data type parameter. I can do that, but I can't seem to get a value from it in the instance.
I'll keep hacking away at it :slight_smile:
Regards,
Ted.

1 Like
5

Hi Ted,

system.tag.write("[.]/Parameters.Value_Change", "5.5"). This code I have written in the UDT Definition. The Value 5.5 varies for me instance to instance. So I use system.tag.write("[.]/Parameters.Value_Change", pvvalue)

Are you trying to push the value in UDT definition parameter and that reflects to all the instances? I hope I understand the requirement correctly.

If not, share some examples with screenshot, it will be helpful to understand.

Thanks,
Suresh

1 Like
6

Hi Suresh,
Yes, I am, and its working. The only thing is the parameter values in the tag browser don't update for the instances.

1 Like