In our application, I wish to use the RS485 ports on an 9871 C-series module plugged into a cRio-9066 chassis.
I had this working; the ports showed up with names like /dev/ttyNIRIOslot6port2. (I have another set of questions about how one could set the wiremode from within a program - we keep having to do a manual step everytime the box is booted. Also, how to close the port, since everytime the program is stopped, I have to boot the cRio to use that port again.)
But the more immediate problem is that we re-loaded the SW on the cRio, and can no longer get the ports to show up (neither in the /dev directory, nor in any of the VISA interfaces). I've tried all sorts of combos but can't get them to reappear. I'll admit confusion as to whether it could be the case that adding some module would move them from local to the RT Linux system, to being available, instead, as a networked interface (but have never seen them anywhere else).
I'm attaching a screenshot of the current S/W selection. I do have the 9870 and 9871 Scan Engine Support in.
Thanks,
Andy S.