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Technical Questions
1

I’m trying to write a new Program for pick & place. When I add a Thread and try to run the code I get an error popup

Thread alarm
Thread alarm732×326 62.5 KB

I’m only trying to use 1 thread so can’t understand how the message thinks I’m using 50!
If I remove the Thread the program runs Ok.

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2

If you don’t mind sharing, what does the program look like. Are you running a check continuously if-statement? Do you have some URscript you are executing?

3

Thanks for the response.
I’ve found the problem myself.

I had a Script file (Get_Task() used to decide what action to do next) that was returning a value. There was a syntax error on the return command (which Polyscope didn’t notice (and neither did I !!!).

The alarm message I think is misleading although it did identify that it was Get_task() that was causing the problem.
but why that would suggest a problem with the thread is confusing.

4

If you have any URCaps installed on your robot, some of them might contribute threads to Polyscope. Confusingly, no more than 50 threads can even be declared in a program, even if only 50 intend to run at once. We have had this problem with our URCaps in the past, where we try and contribute more than 50 threads to a program, despite only ever needing to run 1 at once.

Why the syntax error lead to this popup I have no idea!