The following documentation describes the CFLink protocol for MOD4/DIN-MOD4 devices.

The MOD4/DIN-MOD4 uses the module protocols for all interactions with the plugged in modules.

• Input/Output ports: Follow documentation for IO Modules
• Relay ports: Follow documentation for Relay Modules
• Infrared ports: Follow documentation for IR Modules
• On-board RS232 port: Follow documentation for On-Board RS232