Waveshare Modbus RTU 8-Channel RS485 Relay Module With Digital Input Multi Isolation Protection Circuits, 7~36V Power Supply

This product is an industrial-grade 8-channel relay module controlled by RS485 interface, featuring 8-channel switch input, adopting Modbus RTU protocol, and equipped with built-in power isolation, magnetic coupling isolation, and TVS protection circuits

1. Relay Channels: 8 channels. Contact Type: One normally open, one normally closed. Contact Load: Less than or equal to 10A 250V AC or less than or equal to 10A 30V DC. Digital Input: 8DI, 5 - 36V, passive input/active input (NPN type or PNP type), built-in bidirectional optocoupler. Modbus Protocol: Standard Modbus RTU protocol. RS485 Address Setting: 1 - 255. Indicator Lights:. --STA: MCU indicator light, flashes when MCU is working normally. --TXD: Transmission indicator light, lights up when data is being sent. --RXD: Reception indicator light, lights up when data is being received