Waveshare Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators

Waveshare Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators

$201.12

$201.12 $0.00

Description

SPECIFICATIONS

Battery Included: no

Baudrate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000

Brand Name: Waveshare

Communication interface: RS485

Default communication format: 9600, N, 8, 1

High-concerned chemical: none

Model Number: Modbus RTU Relay 4CH

Origin: Mainland China

Power supply: 7~36V

Relay channels: 4

Typical Application Fields: Education and Learning

Industrial Modbus RTU 4-ch Relay Module with RS485 Interface, 30A High Current, Onboard LED Indicators, Multi Isolation Protection Circuits, Industrial Grade Rail-Mount Case

RS485 4-ch High Current Relay Module

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

Features At A Glance

This is an industrial 4-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS enclosure. The Modbus RTU Relay 4CH 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 arguments to the command, it is possible to turn on the relay for a while and then close it automatically
Onboard voltage regulator, supports 7V~36V wide voltage supply
Onboard unibody power supply isolation, provides stable isolated voltage, needs no extra power supply for the isolated terminal
Onboard unibody ADI 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: ≤30A 250V AC or ≤30A 28V DC
Rail-mounted ABS plastic enclosure, easy to install, safe to use
3 LEDs for indicating the MCU status and signal transceiving status

Specifications

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	4
Contact form	1NO 1NC
contact rating	≤30A 250V AC or ≤30A 28V DC
Communication protocol	Standard Modbus RTU protocol
RS485 address	1~255
LED indicators	STA: MCU indicator, keeps flashing when the MCU is normally working TXD: TX indicator, lights up when sending data RXD: RX indicator, lights up when receiving data

Interfaces & Indicators

With Multiple LED Indicators, Easy To Monitor The Operating Status

High Current Screw Terminals

30A high current relay, Onboard high quality screw terminals with covers, more convenient for high current wiring

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

for reference only, the USB TO RS232/485/TTL converter is Not included

Relay connection

Contact rating of the onboard relay up to 30A 250V AC or 30A 28V DC

Applications

Product show

Outline dimensions

Resources & Services

WIKI: www.waveshare.com/wiki/Modbus_RTU_Relay_4CH

* Resources for different product may vary, please check the wiki page to confirm the actually provided resources.

Package Content

Weight: 0.278 kg

The power supply of this product is not included, it is recommended to purchase 12V power supply if you need it.
It is also recommended to purchase USB TO RS232/485/TTL or USB TO RS485 at the same time for easy testing.

Modbus RTU Relay 4CH x1