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RS485 8 Channel Relay Controller, ModBus RTU

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC.
  • Code: SS_RS485MODBUS_BOX
  • Manufacturer:
  • In stock: 4961

Price: €44.00

Board number manually through a DIP Switch placed near RS485 connector.


User Manual:


Required power:
from 9 to 24V DC
Maximum current drawn by digital circuitry at 9V 500 mA
Maximum current drawn by digital circuitry at 12V 350 mA
Maximum current drawn by digital circuitry at 24V 200 mA


Relays have Normally Open (NO) and Normally Closed (NC) Contacts each capable of switching max:
- 12VDC/15A
- 24VDC/15A
- 125VAC/15A
- 250VAC/10A

Communication Parameters:
8 Data, 1 Stop, No Parity
Baud rate : 9600

MODBUS Commands:
01 (0x01) Read Coils
05 (0x05) Write Single Coil

Coil 0000: Relay 01
Coil 0001: Relay 02
Coil 0002: Relay 03
Coil 0003: Relay 04
Coil 0004: Relay 05
Coil 0005: Relay 06
Coil 0006: Relay 07
Coil 0007: Relay 08

RS485 BUS example:

USB to RS485 BUS


USB to RS485 BUS



More information:





Additonal information

  Payment accepted:
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We ship WORLDWIDE through TNT.

  Import duties, taxes and charges are not included in the item price or shipping charges. These charges
are the buyer's responsibility. Please check with your country's customs office to determine what these additional
costs before you purchase.

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