Unlimited custom outputs?
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17 Aug 2026 23:34 #348823
by sticky
Unlimited custom outputs? was created by sticky
I need to setup a machine that will require 200 custom outputs. I was looking at using Mesa cards since I am familiar with them and they will allow me to control that many outputs using a 7i74 and a bunch of 7i73 cards. Will LinuxCNC allow that many custom commands? If so, how would I approach this? I am familiar with the M100-M199 User Defined Commands, is there a way to add more beyond M199?
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- tommylight
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18 Aug 2026 00:42 #348824
by tommylight
Replied by tommylight on topic Unlimited custom outputs?
Do you need to activate them from gcode or from GUI?
Why 7i73? See 7i71 or 7i72 at 48 outputs each.
Not much info to go on, but yes LinuxCNC should have no problems controlling "as many as you can wire in" outputs, granted the hardware is there.
But that will also depend of the first question.
Why 7i73? See 7i71 or 7i72 at 48 outputs each.
Not much info to go on, but yes LinuxCNC should have no problems controlling "as many as you can wire in" outputs, granted the hardware is there.
But that will also depend of the first question.
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18 Aug 2026 01:29 #348826
by PCW
Replied by PCW on topic Unlimited custom outputs?
If you want a lot of TTL level (open drainn) outputs, a 7I90HD in sserial remote mode
will provide 72 outputs (or inputs) per card.
will provide 72 outputs (or inputs) per card.
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