call subroutine

[PHoskins]

When I call a sub routine in ladder it appears it only scans it once. is this correct?  Is there a way to call a sub routine and have it scan till it sees its return?

 

 

 

Thanks Paul

[PHoskins]

I see my issue I had it tied to a button so it called the routine only while the button was held down.  Changed it to a bit that gets turned on and off when the routine is done.  Still figuring this stuff out but I'm getting there.

[Flex727]

I strongly recommend that you do not do conditional subroutine calls. Write your logic so that the subroutine will always be called continuously. Coils in an uncalled subroutine are in limbo and can give you unexpected results. Under normal circumstances, a well-written program avoids conditional subroutine calls.