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Posted

Yes, but it's been 5 years since anyone made me use DirectLogic PLCs.

I found it in the user manual on the CD. If I remember correctly they did not call them subroutines but that's the way it worked.

Posted (edited)

The subroutines are written after the main code - after the first END instruction. Each subroutine begins with a SBR box in the left rail. It is identified by a constant (eg K1) and that constant is used in the calling GTS in the main part of the program (no nicknames). The subroutine is ended with a no conditioned RT command in the output column. If you need a conditioned return (RTC) that is allowed before the RT rung but the RT rung must exist. No parameters are passed in the JSR or the RT.

Edited by b_carlton
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