I finally upgraded my CNC6040 to have the proper PLCM-B1 breakout board for the tiny PLCM-E3 controller board.
…that breakout PCB is HUGE!
It fills nearly the entire length and 2/3 of the width of my electronics enclosure!
6 axis, 15 inputs,16 outputs, 6x 250V 6A relays, controlled via Ethernet and with proper optocouplers and galvanic isolation.
I’ll not use the PWM feature as my spindle is controlled via RS485.
28 leds for all axis and inputs can e wired to the front of the enclorure.
ok, both E-Stops and tool-height-probe mounted too.
Sadly #MACH3 only allows 1 input to be an E-Stop.
That board is like Mission Control.
The breakout board is more expensive then the acual USB+Ethernet controller board with it’s Power Over Ethernet, Memory, CPU, …
Note: you can’t use the +5V from the stepper-enable outputs to drive the sensor inputs.
(e.g. for a tool-height probe).
I had to add an extra 5V supply just for that probe.