What is the difference between the MVI56-MCM and the MVI56-MCMR?

What is the difference between the MVI56-MCM and the MVI56-MCMR?

1. MCM-I/O mapping (250 input words and 248 output words)
2. MCMR-I/O mapping (84 input bytes and 84 output bytes)
3. MCM-Config by CLX ladder logic
4. MCMR-Config by a configuration file (text file) to download through the Debug port using Hyper Terminal

By reducing the size of the I/O image map, the backplane communication time is reduced, therefore reducing ControlNet bandwidth requirements for the MVI56 module.

If the MVI56-MCM module is to be installed in a remote ControlNet chassis, then the MVI56-MCMR is recommended.