Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

Modbus RTU 32-Ch Relay Module, RS485 Interface, With Multiple Isolation Protection Circuits

This product is an industrial 32-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 32-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.

User Manual / Datasheet / Example Codes Etc.

Features

• Configurable device address (1~255), multi devices can be cascaded on RS485 bus
• Features flash-on, flash-off function, it is possible to turn on the relay for a while and then close it automatically via the command
• Onboard voltage regulator chip, supports 7~36V wide voltage power 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
• 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 :7~36V
• Communication Interface : RS485
• Baudrate : 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000
• Defualt  Communication Format : 9600, N, 8, 1
• Relay Channels : 32
• Contact Form : 1NO 1NC
• Contact Rating : ≤10A 250VAC/30VDC
• Communication Protocal : 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

RS485 32-Ch Relay Module

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

Onboard Multiple Isolation Protection Circuit

Multiple Protections, More Safe And Reliable

RS485 Communication

* for reference only, the USB to RS485 is NOT included.

Relay Connection

Dimensions