Waveshare Industrial Modbus RTU 8 ch Relay Module with RS485 Interface Multi Isolation Protection Circuits Comes an ABS Enclosure

This industrial 8-ch relay module controls via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diode, etc. Due to its fast communication, stability, reliability, and safety, it is ideal for industrial control equipments and/or applications with high communication requirement. It also comes with an Rail-mounted ABS enclosure, easy to install, safe to use Configurable device address (1~255), multi devices can be cascaded on RS485 bus. Features flash-on, flash-off function, by passing argument to the command, it is possible to turn on the relay for a while and then close it automatically Onboard unibody power supply isolation. Onboard unibody ADI magnetical isolation. Onboard TVS (Transient Voltage Suppressor). Onboard Optocoupler isolation High quality relay, contact rating: ≤10A 250VAC/30VDC. 3 LEDs for indicating the MCU status and signal transceiving status. Provide online user manual, please refer to while using