8-channel industrial relay module with RS485 interface, Modbus RTU protocol, optocoupler isolation-SSZFV

1. This relay is designed for industrial applications. It uses the Modbus RTU control protocol and the 485 signal as its operating mode. It supports the control of multiple devices by the same host and is ideally suited for industrial automation. Its ABS housing and rail mounting system ensure greater resistance to real-world operating conditions. 2. The board is equipped with a stable 8-bit microcontroller and an SP3485 level converter chip. 3. Wiring instructions: The relay can be assigned an address on the 485 bus, from 1 to 255. The corresponding instructions can be sent to this address, allowing the relay to control the opening and closing of the circuit. 4. Note: When the relay is powered, the COM and NO terminals are connected and disconnected from the NC terminal, respectively. In other words, load 1 is active and load 2 is inactive. When the relay is not powered, the COM and NC terminals are respectively connected and disconnected from the NO terminal. In other words, load 2 works and load 1 does not. Supply voltage: 5-32V (6V is recommended for better stability). Communication protocol: Compatible with the standard Modbus RTU protocol. Communication interface: Compatible with the RS485 interface, with a 120Ω resistor DIP switch. Baud rate: 4800/9600/19200/38400, 9600 bps default, with power failure backup. Output signal: Relay switching signal. Due to different batches, the product's appearance and markings may vary, without affecting its use. Color: See image. Material: ABS. Package contents: 1 x 8-way relay. Only the above-mentioned contents are included. Note: The color of the item in the photo may be slightly different. The actual product may differ from reality due to light reflection and your screen settings. A margin of error of +/- 1 to 3 cm is possible.Please pay attention to the model and size when purchasing.