I will sleep on it and have another fiddle tomorrow.
At no time did any error messages come up, or I have any problems with anything else, just the problem with the MPG side of the system. And when the IN4 was used to select Jog rate B, the state of the Y axis changed. Even stranger, the state of IN7, (which I am not even using for anything), also changed state. When IN1 was used to select the Y axis, the state of IN3 (Jog rate A) and IN5 (Jog rate C) changes state too. I used the Hal Config tool to check and watch the states of the pins when twiddling with the switches and wiring, and it just got weirder. I cut the second switch off, and manually joined the wired, one at a time, to the 3.3v supply, and got the same screwy results. (Less than smug look on my face now.) Double-checking, the the wiring and switches were correct. I then notices two axis jogging at the same time. In AXIS, the selected axis jogged at the default rates, but when increased rates were selected with the switch, rate B (0.1mm) moved at the default 0.01mm, and rate C (1.0mm) didn't work. The second switch was then connected to IN3, IN4, IN5, and the same 3.3v supply from pin 29, and and these inputs set up using 'Overrides'/'Jog Incr' A, B, and C' respectively. (At this stage I was quite smug, and showed the wife, who just rolled her eyes and went back upstairs.) In AXIS, this also worked correctly, jogging the selected axis at whatever was set as the default rate in the MPG config area. The first switch was then connected to IN0, IN1, IN2, and 3.3v from pin 29, and these inputs set up using 'Axis Selection'/'Joints A, B, and C' respectively. The MPG was connected as ENC0 to IN8 and IN9, with 5v and Gnd, and set up as a 'Multi Hand Wheel'.
Again, using the PnCConf was fairly straightforward, but after some initial success, a few weird things started happening. These were all connected to the P2 connector on the board.
MASTERCAM X8 IS ACTING WEIRD GENERATOR
Today, I started setting up a 7I73 pendant card with a manual pulse generator (MPG) and two rotary switches to select the axis to jog, and the jog increments. Thanks to the PnCConf, everything was straightforward and went very well. Last month I changed my little router from a parallel port to a Mesa 5I25/7I76 setup.
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