Humungousaur

Hi all, Looks like using wait on notifications from multiple vi is the answer. I have been using wait on notification vi manually indexing the notification reference in the for loop. But wait on notifications from multiple vi is the correct vi to be used. Found another thread discussing the same issue. http://lavag.org/topic/4028-notifier-signals-missed/ Thanks, Nanda

Ignore previous boolean is set to false in the wait on notification vi. It is supposed to receive notification, even if the it is set in the past. How do we explain adding a wait in the first loop (while creating notifier) solves the issue?. Adding a delay of just 1 ms solves the problem. How do we explain that? I tried enabling iteration parallelism. And wired the notifier array size to the P terminal. It didn't helped.

Hello, I am trying to use notifier for synchronization within my code. My project requires sender program to send a command to multiple receiver programs. The sender program has to wait for response from all the receiver programs to proceed. I am using user event to send the command from sender program to the receiver programs. And receiver program has to set the notifier after it receives the command. Sender program will wait on notifier. If I don't have any delay between subseqent notifier create vis, my wait on notifier always results in timeout for some of the receiver programs. But when I include a small delay between subsequent create notifier vis, then wait on notifier receives all the notification without timeout. For me it looks like a LabVIEW issue, but I wanted to hear from others, that is there anything wrong in the implementation?. I have attached a small sample program for reference. Open up the sender program, configure no of receivers and run the program. Click the send and receive button to send user events and wait on notifiers. Thanks in advance, Nanda Notifier Prototypes.zip