Two Mesa 5I20

Hello
Would like to use two 5I20.
Can I choose in the PNCONF or what I have to write in the HAL itself the card?
Does anyone have an example?

MfG Dirk

You can use as many PCI cards as you have PCI slots. They will have pins with names like hm2_5i20.0 and hm2_5i20.1

But, why are you using the 5i20? There are cheaper cards from Mesa with the same capabilities. (the 5i24, for example)

linuxcnc.org/docs/2.7/html/config/pnccon..._machine_information

PnCConf appears to understand how to configure 2 cards. If you need more than 2 then you would need to hand-edit.

Why do you need 2 cards? A single 5i20 (or 5i23, 5i24..) can handle 1152 IO pins using the smart-serial daughter cards.

Hello
Have a 7I33TA and two 7I37 turn it is not enough I / O for my machine

You could swap one 7i37 for a 7i44 + any combination of up to 8 of these boards:
store.mesanet.com/index.php?route=product/category&path=83_88

If you want to use more 7i37 cards, it would be sensible to use a 5i24 rather than another 5i20, in any case.