Is it possible to define which pins on a 7i92 an encoder uses?

For a MPG, you would probably want a INM module, as this supports the
1x mode that gets you one count per detent

Do you have a 7I92 or 7I92T?

Thanks PCW!

I have the 7i92M (not T, this is a few years old). I don't mind getting a quad signal per detent, I have my hal set up to adjust the scaling by dividing by 4.

I don't know what INM is and google is failing me, could you explain?

INM is the input module and it has up to 4 MPG encoders built in

Its described in the hostmot2 manual page

Also what firmware are you using currently?
 

I'm using the firmware you provided for me in this thread. I'll have a read through the man page.

EDIT: it's interesting that none of the writeups or documentation I could find (other than the man page for hostmot2 as mentioned) actually use the inm module, they always use the raw encoders from the mesa cards. Is there any particular reason for that other than people not being aware of the inm modules?

So if put a G540 on P1 +some MPG inputs on P2 that would work?

First, sorry for my consistently delayed responses. For some reason I can't actually post to this forum from any of my computers or phones except for my linux pc in my basement that is running linuxcnc.

I don't think I fully understand what you're saying. Currently my G540 is on P1 and the 7i75 is on P2, and unfortunately that is really the only realistic configuration for them due to control cabinet layout. The problem I have is that encoder0 is also on P1 according to mesaflash when I run --readhmid, but those pins are already in use by my limit switches. I can't move my limit switches to the 7i75 because they are running on 12V and the manual for that card specifically states NOT to connect continuous 12V to the inputs.