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I'm a bit new to emc and I'm trying to figure out how to turn some extra relays on and off. I wrote a nc file as it says in the manual made it an executable file as it says m101 m102. and it still says undefined M code used . Am I missing something here? So far I have been successful at making the machine do what I want but this has me puzzled. Any help would be great.
Tim

Hello,

You might want to send a copy of the program along for us to view. Also more information such as what you want to do, what version of EMC, etc.

Rick G

Tim,

From the manual:

The error "Unknown M code used" denotes one of the following

* The specified User Defined Command does not exist
* The file is not an executable file

www.linuxcnc.org/docview/html//gcode_mai...ml#sec:M100-to-M199:

What did you name the file? M101 or M101.ngc? It only needs to be named M101. I don't have EMC set up yet on this computer so I can't test is out. As Rick said if you attach the file perhaps someone can verify that the problem is not in your file. Usually it is named wrong or not in the correct directory.

John

I wrote the file word for word as it is in the manual and named it M101 and another M102 and made them executional. they are just on my desk top maybe thats why if so were should I put them I use emc2. I am just trying to open and close four air cylinders. I use the coolant and brake set up for two and need to
activate two others. attached is one of the files
Thanks Tim

Tim,

I am not near my machine however I think you want to put the files in the directory named in your .INI file. PROGRAM_PREFIX =

Rick G

That sounds great only I can't find where that is or how to get it there
THANKS FOR YOUR HELP!!
Tim