Industrial Modbus RTU 8-ch Relay Module (B)

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

 

 

N0V0

 

 

SKU:  25739
Part Number:  Modbus RTU Relay (B)
Brand:  Waveshare

 

RS485 8-Ch Relay Module (B)

Modbus RTU Protocol, Multi Isolation Protection Circuits, Safe &Stable &Reliable

 

Features At A Glance  

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, and 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 equipments and/or applications with high communication requirement.

 

• 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, provides stable isolated voltage, 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, lightningproof &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, prevent 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 (B)

POWER SUPPLY   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 Of Many Devices Are Cascaded, Or 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

 

 

WIKI:  www. waveshare. com/wiki/Modbus_RTU_Relay

 

 

PACKAGE CONTENT

Weight:  0.244 kg

 

• The power supply of this product is not included, it is recommended to purchase 12V power supply (ID oglasa: #124025132) if you need it.

 

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