Waveshare Modbus RTU 8-channel Relay Module RS485
Waveshare Modbus RTU 8-channel Relay Module RS485 This is an industrial 8-channel relay module that is controlled by an RS485 bus and uses the Modbus RTU protocol. It has embedded protection circuits like power isolation, ADI magnetic isolation, TVS diode, and so on. It also includes an ABS enclosure. The Modbus RTU Relay is extremely simple to use. It is an ideal choice for industrial control equipment and/or applications with high communication requirements due to its fast communication, stability, reliability, and safety. A reverse-proof circuit that prevents the circuit from accidentally being damaged by an incorrect connection. The MCU status and signal transceiving status are indicated by 3 LEDs, they are: LED indicators used: STA: MCU indicator, keep flashing when the MCU normally working TXD: TX indicator, light up when sending data RXD: RX indicator, light up when receiving data Also, read our blog on Applications of Relay explaining 8 major applications, what is it, how does it works, its construction, and different types of relays. What’s On Board: Applications: Industrial Control - Valve control, pump station control, unattended industrial control system Smart Home - Controlling appliances like air conditioner, access control, purifier, water heater, and so on Intelligent Agriculture - Controlling door curtain motor, air blower, and so on Breeding And Farming - Controlling ventilator, lighting, water supply, feeding system, and so on Package Includes: 1 x Modbus RTU Relay 1 x Power adapter US plug 5V/2A 5.5/2.1 1 x Power adapter EU head Specifications: Power supply voltage 5V Communication interface RS485 Baudrate 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000 Default communication format 9600, N, 8, 1 Relay channel 8 Contact form 1NO 1NC Communication protocol Standard Modbus RTU protocol RS485 address 1~255 RS485 terminal protection 600W lightning-proof and surge-suppress, 15KV ESD protection (reserved 120R balancing resistor solder pads) Dimensions (mm) 145 x 90 x 40 (L x B x H) Weight (gm) 344
- Configurable device address (1255), cascaded multi-devices on the RS485 bus
- It has a flash-on, and flash-off function, by passing the 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 provides stable isolated voltage and eliminates the need for an additional power supply for the isolated terminal.
- Onboard unibody ADI magnetically isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
- Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge and transient spike voltages in the circuit, lightning-proof and anti-electrostatic.
- Onboard Optocoupler isolation prevents a high-voltage circuit from interfering with the relay.
- High-quality relay with a contact rating of 10A 250VAC/30VDC.
- Rail-mounted ABS plastic enclosure that is simple to install and use.
- 1 x Modbus RTU Relay
- 1 x Power adapter US plug 5V/2A 5.5/2.1
- 1 x Power adapter EU head