Is anyone able to tell me why I am getting this error and what I should do to remedy it? I am trying to send a pulse to a button on our machine in order to get it to start the cycle. I created a test program with only the set command in order to see if it would work. The only reason I can think of that would be causing this error is that maybe I don't have the digital output connected to the machine in the right way, but maybe there is something else I am missing.

Yes, you are calling that set command more than once, can you send a picture of your polyscope program? Each time you call the set for pulsing it creates a new thread to control the output. 

@matthewd92 I figured it out. I had forgotten to turn off the loop forever setting. Thanks!

Hi!

But what if my robot cell execution runs in a loop indefinetly, for example a whole shift. Then I'd like the thread or the main program with "loop forever" checked. How can I overcome this? Thanks!