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R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V

R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V

$8.42 USD
$8.42 USD $8.42 USD
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R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V


1 Working voltage: DC5V/DC 12V (6-25V)

2 Working current: 8-14MA

3 MODBUS RTU function codes: Write 05/06/15/16, Read 01/02/03

4 5 function IO modes can be selected by jumper: 8DI/8DO/4DI-4DO/2DI-6DO/6DI-2DO

5 By modifying the 0X00F5/0X00F6 register, the input and output levels (NPN/PNP) can be switched

6 Input mode: Support 3.3V/5V TTL level input, there are two input modes of low level input (default) and high level input

7 Output mode: 5V TTL level, low level (default) / high level output

8 In MODBUS command mode, it can support up to 247 devices in parallel

9 Input port status supports query (default) and automatic reporting

10 BaudRate:1200 2400 4800 9600(default) 19200 38400 57600 115200, None/Odd/Even Parity

11 Use the ZH1.5MM Connector to make the board small and thin

12 Size: 44*20*5(Very Small and Very Thin)

13 Weight: 2.8grams(Very Light)

Packing list:

1 PCS 8ch DC 5-24V RS485 Multifunctional DI-DO Module









This module is a multi-function board, you can select various function modes through jumpers.
The jumper uses 0603 0Ω resistor (or wire)







Different Versions of Pin Definitions



For MODBUS RTU command details, see:''R4IOH08 MODBUS RTU Commamd''







By modifying the 0X00F5/0X00F6 register, various input and output levels (NPN/PNP) can be switched

NPN Input & NPN Output(Register 0X00F5=0,0X00F6=0,Default)
PNP Input & NPN Output(Register 0X00F5=1,0X00F6=0)
NPN Input & PNP Output(Register 0X00F5=0,0X00F6=1)
PNP Input & PNP Output(Register 0X00F5=1,0X00F6=1)













Note: The board does not include the ZH1.5mm terminal wire, which needs to be purchased separately























































































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Variant Variant total Quantity Price Variant total
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DI no Ter / DC 12VR4IOH08_NO_8DI_12V
8DI no Ter / DC 12VR4IOH08_NO_8DI_12V
$8.42
$8.42/ea
 $0.00
$8.42
$8.42/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DI no Ter / DC 5VR4IOH08_NO_8DI_5V
8DI no Ter / DC 5VR4IOH08_NO_8DI_5V
$8.39
$8.39/ea
 $0.00
$8.39
$8.39/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
2DI-6DO / DC 12VR4IOH08_PIN_2DI-6DO_12V
2DI-6DO / DC 12VR4IOH08_PIN_2DI-6DO_12V
$8.43
$8.43/ea
 $0.00
$8.43
$8.43/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
2DI-6DO / DC 5VR4IOH08_PIN_2DI-6DO_5V
2DI-6DO / DC 5VR4IOH08_PIN_2DI-6DO_5V
$8.40
$8.40/ea
 $0.00
$8.40
$8.40/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
4DI-4DO / DC 12VR4IOH08_PIN_4DI-4DO_12V
4DI-4DO / DC 12VR4IOH08_PIN_4DI-4DO_12V
$8.43
$8.43/ea
 $0.00
$8.43
$8.43/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
4DI-4DO / DC 5VR4IOH08_PIN_4DI-4DO_5V
4DI-4DO / DC 5VR4IOH08_PIN_4DI-4DO_5V
$8.39
$8.39/ea
 $0.00
$8.39
$8.39/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
6DI-2DO / DC 12VR4IOH08_PIN_6DI-2DO_12V
6DI-2DO / DC 12VR4IOH08_PIN_6DI-2DO_12V
$8.45
$8.45/ea
 $0.00
$8.45
$8.45/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
6DI-2DO / DC 5VR4IOH08_PIN_6DI-2DO_5V
6DI-2DO / DC 5VR4IOH08_PIN_6DI-2DO_5V
$8.40
$8.40/ea
 $0.00
$8.40
$8.40/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DI / DC 12VR4IOH08_PIN_8DI_12V
8DI / DC 12VR4IOH08_PIN_8DI_12V
$8.42
$8.42/ea
 $0.00
$8.42
$8.42/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DI / DC 5VR4IOH08_PIN_8DI_5V
8DI / DC 5VR4IOH08_PIN_8DI_5V
$8.39
$8.39/ea
 $0.00
$8.39
$8.39/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DO / DC 12VR4IOH08_PIN_8DO_12V
8DO / DC 12VR4IOH08_PIN_8DO_12V
$8.42
$8.42/ea
 $0.00
$8.42
$8.42/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
8DO / DC 5VR4IOH08_PIN_8DO_5V
8DO / DC 5VR4IOH08_PIN_8DO_5V
$8.37
$8.37/ea
 $0.00
$8.37
$8.37/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
Matching cables / DC 12VZH15P10_ZH15P04
Matching cables / DC 12VZH15P10_ZH15P04
$6.42
$6.42/ea
 $0.00
$6.42
$6.42/ea
 $0.00
R4IOH08 Mini 8CH RS485 Multifunction DI-DO Module – 5 Modes NPN/PNP Configurable Digital IO Board Modbus RTU for PLC Expansion DC 5V/12V/24V
Matching cables / DC 5VZH15P10_ZH15PO4
Matching cables / DC 5VZH15P10_ZH15PO4
$6.42
$6.42/ea
 $0.00
$6.42
$6.42/ea
 $0.00
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