Hardinge HC Bandit Retrofit

or use the

sudo mesaflash --device 5i24 --reload

option

I had done a power down before flashing, and verified the flash.
I swapped the ribbon cables between the 7I37 and the 7I42, and now I am getting encoder pins!!
Apparently it did not want to assign any encoder pins to the 7I37.

One issue is that my 7I49 is plugged into P1 on the 5I24 and the file shows it as P4 and the others as P3 and P2. The board drawing doesn't show a P2. Should I move the 7I49 cable?

The 7I49 is on the GPIO 0..23 pins (P4)
The 7I42/encoder is on the GPIO 24..47 pins = middle connector (P3)
and the 7I37COM should be on the GPIO 48..71 pins (P2 on a a 5I24, P1 on a 6I24)

After some delay, I finally made some more progress on this retrofit.

I bought an electrical box, and machined the door to fit the touch screen, and controls.
I needed labels on the panel, so I bought an anodized aluminum sheet, and engraved into it. The controls are mounted, and I started the wiring.



Now I have some basic questions on connecting to the Mesa boards. This is probably so basic, that I haven't been able to find any discussion on it.

How do I wire the control switches to the boards? Can I wire 5V to all the far sides of the switches, and the other side of each switch directly to the + input terminal? Do I need to add pull up resistors?

What about wiring relays? Does the ground side of the coil wire directly to the + I/O terminal on the board?

If I use the 5V power connection to the boards does it need to be from a separate power supply than the voltage on the switches to prevent defeating the isolation?

Thanks

Thanks Andy.

That helps. I am planning to use the 7I37 with 24V for everything on the machine, relays/ limit switches/ etc. Then for the control panel switches and encoders use the 7I42 with 5v. I assume these would wire the same way?

The 7I42 would connect to the spindle encoder, the MPG encoder, and all the panel switches.