Description
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Modbus RTU 8/16/32-channel RS485 interface relay module with multiple isolation protection circuits
Features：
This series of products is a relay module controlled by an industrial RS485 interface. The number of relays can be 8/16/32, using Modbus RTU protocol, with built-in power isolation, ADI magnetic coupling isolation, self-recovery fuse and TVS protection circuits, ABS DIN rail shell design. This product is easy to operate, has the characteristics of fast communication speed, stability, reliability, safety, etc., and can be applied to various industrial control equipment or applications with high communication requirements.
Support setting the device address (1~255), in order to cascade multiple devices through the RS485 bus, with flash open and flash off functions, and the onboard integrated power isolation can be automatically closed by commanding the relay to open for a period of time, which can provide stable Isolation voltage, no additional power supply is required for the isolation end. Onboard integrated ADI magnetic coupling isolation can perform signal isolation, with high reliability, strong anti-interference and low power consumption.
On-board self-recovery fuse and TVS (transient voltage suppressor), which can effectively suppress surge voltage and transient peak voltage in the circuit, prevent overcurrent and overvoltage, lightning protection and anti-static on-board optical isolation, and avoid relay high-voltage circuit interference
Using a dedicated relay drive chip, built-in freewheeling diode protection, stronger and more stable drive capability, on-board anti-reverse connection circuit, to avoid reverse connection of positive and negative poles to burn out the circuit
Using high-quality relays, allowing access to loads: ≤10A250VAC or ≤10A 30V DC rail-mounted ABS protective shell, easy to install and use, safer with a shell
There are 3 external LED indicators for easy viewing of MCU status and signal transceiver status. Only the 32-channel version has an onboard voltage regulator chip and supports 7~36V wide voltage power supply.
Specifications:
Product model: Modbus RTU Relay 8CH/Modbus RTU Relay 16CH/Modbus RTU Relay 32CH
Working voltage: 5V/7-36V
Communication interface: RS485
Communication baud rate: 4800.9600, 19200, 38400, 57600, 115200, 128000, 256000
Default communication format: 9600,N8,1
Number of relay channels: 8 channels/16 channels/32 channels
Contact type: one normally open, one normally closed
Contact load: ≤10A250VAC or ≤10A30VDC
Modbus protocol: standard ModbusRTU protocol
RS485 address setting: 1-255
Indicator light:
STA: MCU indicator light, flashes when the MCU is working normally
TXD: Send indicator light, the light is on when sending data
RXD: receiving indicator light, the light is on when receiving data
Package Included:
Option1:
1x 32-way relay module [power supply not included]
Option2:
1x 16-way relay [EU power supply]
Option3:
1x 16-way relay [US power supply]
Option4:
1x 8-way relay [EU power supply]
Option5:
1x 8-way relay [US power supply]
Warranty:
Returns: Customers have the right to apply for a return within 60 days after the receipt of the product
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