As a communication terminal board, CTB810 is installed on the left side of the MB810 substrate and is mainly responsible for handling the connection of communication interfaces.

Core function: It serves as the "communication gateway" for data exchange between the HPC800 controller and external networks (such as engineer stations, operator stations, other PLCs). CTB810 provides physical connection points and converts the signals of the internal bus of MB810 into standard industrial communication interfaces, such as RS-232, RS-485 or Ethernet.

Specific uses:

Protocol conversion and connection: Supports various protocols such as Modbus RTU and Modbus TCP/IP, facilitating connections with upper computers, touch screens, frequency converters, intelligent instruments, etc.

Simplified wiring and maintenance: Concentrates the complex communication cables on the terminal board, making the system layout clearer and facilitating future maintenance and replacement.