High-speed IO module based on EtherCAT bus

The invention provides a high-speed IO module based on an EtherCAT bus. The high-speed IO module comprises a communication unit (1), a CPU unit (2), an input unit (3), an interface unit (4) and an output unit (5). The communication unit (1) is integrated with the EtherCAT, and the CPU unit (2) achieves interaction with process data of a far-end main controller through the communication unit (1) via an EtherCAT network. The CPU unit (2) inputs an input signal through the input unit (3); the CPU unit (2) outputs an output signal through the output unit (5); the interface unit (4) provides a physical connector for input signals and output signals. The multi-path high-speed IO expansion device can be connected with a remote controller, so that multi-path high-speed IO can be effectively expanded; according to the invention, real-time process control and high-speed data acquisition can be carried out simply and reliably; according to the invention, the field wiring of the system is simplified, and the convenience