The handheld HMI, cMT3106XM, does not connect directly to the PLC, power supply or other equipment. All communication is managed centrally through the connection box. This architecture offers the following advantages:
- Improved system safety: The HMI can be removed or replaced at any time without affecting communication stability.
- Simplified wiring and maintenance: Only the connection box needs to be installed on-site, and the HMI can be plugged or unplugged using a single cable.
- Enhanced waterproof and dustproof protection: Reduced external wiring during operation helps protect equipment
The connection box is the external wiring module of the handheld HMI, handling all power
and communication interfaces. Whether for PLC communication, power supply, or safety
circuits (such as emergency stop switch or 3-position enable switch), all connections are
centralized in the connection box.
Two designs are available:
- Standard Connection Box: Mounts outside control cabinets or on walls, with clear
wiring and easy maintenance. - Compact Connection Box: Houses all terminals and wiring within the control
cabinet for a clean, organized setup
