Waveshare® Modbus RTU 8 Channel Relay Module Industrial Grade RS485 Interface with Multiple Isolation Protection Circuit

Features Support setting device address 1 255 to cascade multiple devices via RS485 busWith flash on and flash off function you can bring parameters in the command the operation relay will turn off automatically after a period of timeOnboard integrated power supply isolation can provide stable isolation voltage without additional power supply at the isolation endOnboard integrated ADI magnetic coupling isolation signal isolation high reliability strong anti interference low power consumptionOnboard TVS transient voltage suppression tube which can effectively suppress surge voltage and transient spike voltage in the circuit lightning protection and static electricity protectionOnboard optocoupler isolation to avoid interference from relay high voltage circuitsOnboard anti reverse connection circuit to avoid reverse connection of the positive and negative electrodesAdopt high quality relays allowing access to load ≤10A 250V AC or ≤10A 30V DCGuide rail type ABS plastic shell easy to install and use more secure with shellThree external LED indicators for easy viewing of MCU status and signal sending and receiving statusParameter Power supply voltage 5VCommunication interface RS485Communication baud rate 4800 9600 19200 38400 57600 115200 128000 256000Default communication format 9600 N 8 1Number of relays 8Contact type one normally open and one normally closedCommunication protocol Standard Modbus RTU protocolRS485 address setting 1 255RS485 inte