6-channel analog acquisition module
Introduction: ZHC4661 is an industrial-grade 4G DTU that provides 4-channel AI, 2-channel AO and 1-channel RS485 interfaces. It supports Modbus RTU/TCP adaptation, automatic collection and active reporting, 4~20mA analog control collection, and automatic calibration threshold reporting. Other special functions include one-to-one and many-to-one networks, and