SmartIO Modbus 8R4D4A
Industrial Automation

SmartIO Modbus 8R4D4A

Modbus-enabled smart I/O module. Remote control and monitoring solution with 8 relay outputs, 4 digital inputs and 4 analog inputs.

  • I/O8R / 4D / 4A
  • CommunicationRS485 Modbus RTU
  • Power supply24 VDC
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About the Product

SmartIO Modbus 8R4D4A is a smart I/O module designed for remote control and monitoring needs in industrial automation systems. Working over Modbus RTU it integrates easily into your existing systems; you control loads with its 8 relay outputs while monitoring system parameters with 4 digital and 4 analog inputs.

Powerful Relay Outputs

8 × 10 A SPDT relay outputs, AC/DC resistive and inductive load control

Digital Inputs

4 × 24 VDC digital inputs, NPN/PNP sensor support

Analog Inputs

4 × 0-30 V analog inputs, 16-bit resolution, ±0.1% FS accuracy

Contact

Modbus RTU support over RS485

DIN Rail Mounting

Compact design, easy in-panel mounting on a 35 mm DIN rail

Technical Specifications

Relay Outputs

Number of channels8
Contact typeSPDT
Contact rating10 A @ 250 VAC / 30 VDC
Load typeAC/DC resistive, inductive
Mechanical life10 million operations
Electrical life100,000 operations

Digital Inputs

Number of channels4
Input type24 VDC
Signal typeNPN / PNP
Response time< 10 ms

Analog Inputs

Number of channels4
Signal type0-30 V
Resolution16-bit (0-65535)
Accuracy±%0,1 FS
Sampling rate100 samples/s (adjustable)

Power and Communication

Power supply24 VDC (±%20)
Power consumption (relays de-energised)3 W
Power consumption (all relays active)12 W
Reverse polarity protection
RS485 / Modbus RTU

Environment and Mechanical

Operating temperature-20 °C ~ +70 °C
Storage temperature-30 °C ~ +80 °C
Relative humidity5-95% (non-condensing)
Mounting35 mm DIN rail
Dimensions159 × 87 × 60 mm

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