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Showing results for tags 'call'.
Found 4 results
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Cant call a STL written add-on instruction from an SFC main program
Radu Babau posted a topic in Allen Bradley / Rockwell Automation
Hello folks, I am a rookie, self-training in PLC programming. I have written an SFC exercise (attached ACD file). I also try to call STL written subroutines and add-on instructions, from within the SFC main program. Calling the created subroutine works fine, but calling the add-on instruction fails from a reason which is above my level. I tried, tried and tried different solutions, with no avail. I am either wrong in writing the add-on (perhaps some missing but missing tag ?), or wrong is calling it. Can someone please give me a hint on what I do wrong ? Thank you, Radu PS . I use Studio 5000 v24, combined with RSLogix 5000 Emulator. SFC_trial.ACD -
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PLC trainee View File SFC test file; cant call an STL written add-on from SFC main program Submitter Radu Babau Submitted 02/04/19 Category PLC Sample Code
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So I'm new to PLC programming and to mitsubishi in particular. I found in my software a lot of ECALL and EFCALL insctructions. Same condition activates an ECALL and then and EFCALL of the same Subroutine P1. Can someone explain the differences because i don't understand what Mitsubishi mean by "Performs non-execution processing of subroutine program Pn" and " Executes subroutine program Pn from within designated program name" in their description. Thank you :)
