The Compact RIO family from National Instruments has a real-time operating system. Our RMC LabVIEW drivers do not support this real-time operating system.
To communicate with the RMC, options are:
Communicate via Ethernet/IP
NI’s NI-Industrial Communications for Ethernet/IP software allows communication between the RMC and Compact RIO using Ethernet/IP messaging. Use the Ethernet/IP SLC500 Read/Write VIs as shown here .
Communicate via Modbus
The Compact RIO is programmed using the LabVIEW Real-Time Module. I recommend using the Modbus I/O Servers.
This will require sending TCP or UDP packets on the real-time Linux the Compact RIO is operating on. I’m not sure how feasible this is.