MPG config

bevins wrote: Does this look right? I am going to connect mpg on bench to test but would ;like a lookover.

linuxcnc 2.9
Linuxmint 18.3

I got this off my VM-40 I did 5 years ago and cant remember what I did......lol
custom.hal

Warning: Spoiler!

Code:

# custom.hal # #***************************************** # MPG Jog Select #***************************************** #net jog.x.pos hm2_7i92.0.7i76.0.0.input-20 #net jog.x.neg hm2_7i92.0.7i76.0.0.input-21 #net jog.y.pos hm2_7i92.0.7i76.0.0.input-22 #net jog.y.neg hm2_7i92.0.7i76.0.0.input-23 #net jog.z.pos hm2_7i92.0.7i76.0.0.input-24 #net jog.z.neg hm2_7i92.0.7i76.0.0.input-25 #***************************************** #***************************************** # JOG Velocity Mode #***************************************** setp axis.x.jog-vel-mode 0 setp axis.y.jog-vel-mode 0 setp axis.z.jog-vel-mode 0 #***************************************** #***************************************** # Jog Scale #***************************************** setp mux4.0.in0 0.0001 setp mux4.0.in0 0.01 setp mux4.0.in0 0.001 #***************************************** #******************************************** # Inputs to mux component, scale and counts #******************************************** net scale1 mux4.0.sel0 <= hm2_7i92.0.7i76.0.0.input-26 net scale2 mux4.0.sel1 <= hm2_7i92.0.7i76.0.0.input-27 net pend-scale axis.x.jog-scale <= mux4.0.out net pend-scale axis.y.jog-scale net pend-scale axis.z.jog-scale net mpg-x axis.x.jog-enable <= hm2_7i92.0.7i76.0.0.input-28 net mpg-y axis.y.jog-enable <= hm2_7i92.0.7i76.0.0.input-29 net mpg-z axis.z.jog-enable <= hm2_7i92.0.7i76.0.0.input-30 net joint-select-count <= hm2_7i92.0.7i76.0.0.enc0.count net joint-select-count axis.x.jog-counts net joint-select-count axis.y.jog-counts net joint-select-count axis.z.jog-counts #*****************************************

PCW wrote: You have set the same mux input multiple times

setp mux4.0.in0 0.0001
setp mux4.0.in0 0.01
setp mux4.0.in0 0.001

probably should be

setp mux4.0.in0 0.0001
setp mux4.0.in1 0.01
setp mux4.0.in2 0.001

PCW wrote: if you are not getting any counts it may be a signal level issue
or perhaps a grounding issue since the field inputs have an
isolated ground

You should be able to check this by looking at the signal levels of the
MPG pins relative to field GND with a DVM

PCW wrote: 2.5V swing is not enough
(inputs must be >3V for high and less than 2V for low)

You may need pullup resistors on the A,B signals to get sufficient swing