How can I see the change of the events?

[Iskander]

Hi all

I learned the DCS.

I created the small VI for the study

I can control the vareables ch02 & ch03 and read inn0

I tried to see the change the boolean  EVENT (alarrm-01). But I  see nothing the change.

And Why did I see only the ch02 & ch03 on the events-01 and don't see the inn0?

Best regards

Iskander

[altenbach]

Are you using "continuous run" mode for this? Please place a while loop around the code! Is this a toplevel VI or a subVI?

I don't know anything about your code, and I don't have the subVIs, but you might have race conditions. You should use the error cluster to enforce correct execution order.

It would seem important that the two "chX" shared variables get written before "read alarms" executes, and reading inn0 should wait until the subVIs have completed. Sorry, I have no idea what else interacts with the shared variables, so you should give us a bit more details about your application.

[Iskander]

Hi

Thanks for the answer and attension

I have the next task: control the variables and receive data  via opc Server.

Opc Server is working

And I received data to my project

But I don't know: what is mean event, ask time and when its are changed?

Best regards

Iskander

[Jeremy_B]

Hi,

Are you asking what the event time is?  It refers to when the event was generated.