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Industrial Modbus RTU 8-ch Relay Module with RS485 Interface

  • $60.00
  • Save $20
  • (Exc. GST)


  • Available in stock

  • $ We Ship from our stock in AU (Perth) with pickup option, and Prices are Exc. GST
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    Industrial Modbus RTU 8-ch Relay Module with RS485 Interface

    Industrial Modbus RTU 8-Ch Relay Module (B) With RS485 Interface, Multi Isolation Protection Circuits, 7~36V Power Supply

     

    Features:

    This is an industrial 8-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, magnetical isolation, TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay (B) is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipment and/or applications with high communication requirements.

    • Configurable device address (1~255), multi-devices can be cascaded on RS485 bus
    • Features flash-on, and flash-off functions, by passing an 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 needs no extra power supply for the isolated terminal
    • Onboard unibody magnetical isolation, allows signal isolation, high reliability, strong anti-interference, low power consumption
    • Onboard resettable fuse and TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, provides over-current/over-voltage proof, lightning proof & anti-electrostatic
    • Onboard Optocoupler isolation, prevent the relay from being interfered by high-voltage circuit
    • Adopts dedicated relay driver chip, with built-in flyback diode protection, for stronger and more stable driving ability
    • Reverse-proof circuit, prevents the circuit from being damaged accidentally by incorrect connection
    • High-quality relay, contact rating: ≤10A 250VAC/30VDC
    • Rail-mounted ABS plastic enclosure, easy to install, safe to use
    • 3 LEDs for indicating the MCU status and signal transceiving status

    Specifications

    PRODUCT Modbus RTU Relay Modbus RTU Relay (B)
    POWER SUPPLY 5V 7~36V
    COMMUNICATION INTERFACE RS485
    BAUDRATE 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
    DEFAULT COMMUNICATION FORMAT 9600, N, 8, 1
    RELAY CHANNELS 8
    CONTACT FORM 1NO 1NC
    CONTACT RATING ≤10A 250VAC/30VDC
    COMMUNICATION PROTOCOL Standard Modbus RTU protocol
    RS485 ADDRESS 1~255
    LED INDICATORS STA: MCU indicator, keeps flashing when the MCU normally working
    TXD: TX indicator, lights up when sending data
    RXD: RX indicator, lights up when receiving data

    Hardware Analysis

    Multiple Protections For Safer And More Reliable Use

    Enclosure Design

    Rail-mounted ABS Plastic Enclosure, Easy To Install, Safe To Use

    RS485 Communication

    Configurable Device Address (1~255), Multi Devices Can Be Cascaded On RS485 Bus

    In Case Many Devices Are Cascaded, Or the Communication Distance Is Quite Long, It Is Necessary To Use RS485 Repeaters

    Relay Connection

    Contact Rating Of The Onboard Relay Up To 10A 250VAC/30VDC
    Directly Controlling 220VAC Home Appliances, Or Devices Below 30VDC

    Applications

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