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To list all mesa hardware pins:

Run LinuxCNC

Then in a a terminal type:

halcmd show all hm2

On a 7I96S the outputs 0..3 are SSRs and the outputs 4,5 are OUTMs

Note that if you created a hal/ini file set with one of the  the GUI configurators,
They "know" the output names:


 

Aciera,

Okay, I just messed with the machine for over an hour and I am more confused now than at the beginning.  I assume you are trying to get me to find the correct pin using the hal configuration tool.  Well.  I could not find the pin.  The only place that seemed reasonable was under GPIO.  I set all these pins to high using hal configuration.  Nothing I did turned my pump relay on (I was also checking with a multimeter). Btw, I got to hal configuration from the GUI, not from terminal, I assume this wouldn't change anything.. It is frustrating that there is not a document somewhere that shows the names of the pins as LinuxCNC has them named...

I am not surprised that my mcode does not make sense, are you saying that I need to remove "chmod x M101"?

Thank you. 

Best,
-Dylan