Modbus RTU 16-Ch Relay Module, RS485 Interface

Modbus RTU 16-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

SKU:  24921
Part Number:  Modbus RTU Relay 16CH
Brand:  Waveshare

RS485 16-Ch Relay Module

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

Features At A Glance  

This product is an industrial 16-ch relay module controlled via RS485 bus, adopts Modbus RTU protocol, built-in protection circuits such as power supply isolation, ADI magnetical isolation, resettable fuse, and TVS diode, etc. It also comes with an ABS case.

The Modbus RTU 16-Ch Relay 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 requirements.

• 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 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
• Onboard dedicated relay driver chip, with built-in freewheeling diode protection, the driving ability is stronger and more stable
• Reverse-proof circuit, prevent the circuit from being damaged accidentally by incorrect connection
• High quality relay, contact rating: ≤10A 250VAC/30VDC
• Rail-mounted ABS case, easy to install, safe to use
• 3 LEDs for indicating the MCU status and signal transceiving status

Specifications  

OPERATING VOLTAGE 5V

COMMUNICATION INTERFACE RS485

BAUDRATE 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000

DEFAULT COMMUNICATION FORMAT 9600, N, 8, 1

RELAY CHANNELS 16

CONTACT FORM 1NO 1NC

COMMUNICATION PROTOCOL Standard Modbus RTU protocol

RS485 ADDRESS 1~255

LED INDICATORS

STA: MCU indicator, keep flashing when the MCU normally working
TXD: TX indicator, lights up when sending data
RXD: RX indicator, lights up when receiving data

Onboard Multiple Isolation Protection Circuit

Multiple Protections, More Safe And Reliable

Rail-Mount Case Design

Rail-Mounted ABS Protective 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 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

Wiki:  www. waveshare. com/wiki/Modbus_RTU_Relay_16CH

PACKAGE CONTENT

Weight:  0.556 kg

1. Modbus RTU Relay 16CH                                                        x1
2. US plug 5V 2A Power supply (with EU head adapter)             x1

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