ODOT B series integrated I/O module consists of communication board (COMM board) module and extended IO module. The COMM board could select the corresponding bus module according to the communication interface of the controller system. The mainstream industrial communication protocols include Modbus, Profibus-DP, Profinet, EtherCAT, EtherNet/IP, CANopen, CC-Link, PowerLink, etc. The extended I/O module is divided into six categories: digital input module, digital output module, analog input module, analog output