need to turn on & off, a physical pin with one of the un- unused M code.

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davidcnc
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23 Mar 2018 17:21 #107761 by davidcnc

need to turn on & off, a physical pin with one of the un- unused M code. was created by davidcnc

Need additional M code to operate a hydraulic cylinder valve. Already using M3 & M5 also M7 & M9. need a third on/off M code.
Using Jon Elsons stepper board.
davidcnc thanx

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Todd Zuercher
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23 Mar 2018 17:35 - 23 Mar 2018 17:36 #107762 by Todd Zuercher

Replied by Todd Zuercher on topic need to turn on & off, a physical pin with one of the un- unused M code.

Is there a reason you can't setup and use a couple of the user definable M-codes (M100-199)
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m100-m199

Last edit: 23 Mar 2018 17:36 by Todd Zuercher.

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rodw
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23 Mar 2018 19:57 #107768 by rodw

Replied by rodw on topic need to turn on & off, a physical pin with one of the un- unused M code.

M62/M63 and M64/M65 by default provide 4 digital outputs you can turn on and off but this can be extended to up to 64.
linuxcnc.org/docs/html/gcode/m-code.html#mcode:m62-m65
The link in that section tells you how to extend the number of pins that can be controlled.

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