enable external pin with input toggle switch
- Piton4ik
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02 Feb 2025 17:36 - 02 Feb 2025 17:41 #320433
by Piton4ik
enable external pin with input toggle switch was created by Piton4ik
hi, i am studying Linuxcnc and I need to enable coolant on my lathe with an external switch,
my external switch connected to pin as:
an output coolant pin connected as:
how connect toogle to run flood?
i find this code but understand how it works in linuxcnc
and I find this lesson but don't understand how edit button code to google switch
all my attempts led to errors,
but this code is work good to spindle
and my copy to coolant show error...
And I have a pneumatic spindle chuck and need connect 3 state toggle to open chuck and close chuck,
to open chuсk I receive input but need run 2 step(enable relay(M64 P0) and disable after 3 second(M65 P0))
to close chuсk I receive input and need run 2 step (enable relay(M64 P1) and disable after 3 second(M65 P1))
Maybe this type of chuck is turned on and off differently?
thank you
my external switch connected to pin as:
net flood-switch <= [HMOT](CARD0).7i76.0.0.input-19 an output coolant pin connected as:
# --- COOLANT-FLOOD ---
net coolant-flood => [HMOT](CARD0).7i76.0.0.output-10how connect toogle to run flood?
i find this code but understand how it works in linuxcnc
net coolant-mist => hm2_7i76e.0.7i76.0.0.output-14
net coolant-flood <= iocontrol.0.coolant-floodand I find this lesson but don't understand how edit button code to google switch
all my attempts led to errors,
but this code is work good to spindle
net spindle-manual-cw <= [HMOT](CARD0).7i76.0.0.input-20and my copy to coolant show error...
net coolant-mist <= [HMOT](CARD0).7i76.0.0.input-14And I have a pneumatic spindle chuck and need connect 3 state toggle to open chuck and close chuck,
to open chuсk I receive input but need run 2 step(enable relay(M64 P0) and disable after 3 second(M65 P0))
to close chuсk I receive input and need run 2 step (enable relay(M64 P1) and disable after 3 second(M65 P1))
Maybe this type of chuck is turned on and off differently?
thank you
Last edit: 02 Feb 2025 17:41 by Piton4ik.
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- andypugh
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09 Feb 2025 18:24 #321085
by andypugh
Replied by andypugh on topic enable external pin with input toggle switch
I am not completely clear what you want to configure, but my own lathe has a three-position switch for coolant on, off and auto (in "auto" mode it runs according to the G-code flood coolant command)
I use a "mux" component. Specifically an 4-way bit-type mux_generix:
linuxcnc.org/docs/stable/html/man/man9/mux_generic.9.html
Basically if no sel inputs to the mux are set the it passes-through coolant-flood.
If the force-on input is set then hard-coded to on input 01 is used
force-off uses a hard-coded off.
The switch isn't capable of sending both force-on and force-off inputs, but I set that combo to 0 just to be tidy.
I use a "mux" component. Specifically an 4-way bit-type mux_generix:
linuxcnc.org/docs/stable/html/man/man9/mux_generic.9.html
loadrt mux_generic config=bb4
net coolant-force-on hm2_{card}-in-NN => mux_gen.0.sel-bit-00
net coolant-force-off hm2_{card}-in-MM => mux_gen.0.sel-bit-01
net coolant-flood mux_gen.0.in-bit-00
setp mux_gen.0.in-bit-01 1
setp mux_gen.0.in-bit-02 0
#should not be possible to have both sel inputs true, but...
setp mux_gen.0.in-bit-03 0
Basically if no sel inputs to the mux are set the it passes-through coolant-flood.
If the force-on input is set then hard-coded to on input 01 is used
force-off uses a hard-coded off.
The switch isn't capable of sending both force-on and force-off inputs, but I set that combo to 0 just to be tidy.
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