Multiple Maple Systems OITs can communicate to a single GE Fanuc Series 90 PLC through a CMM module. The CMM311 module is available for the Series 90-30 PLC. The CMM711 module can connect to the Series 90-70 PLC.

Each CMM module enables the user to install 2 additional ports running the GE Fanuc SNP Protocol on the PLC, and with this, the ability to connect an OIT to each port