Modbus module with 4 analog inputs

With the MR-AI4 Modbus module, the inputs of the M2M Control telecontrol systems can be extended easily and completely transparent for the application.


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The MR-AI4 has 4 analog inputs that can detect either currents (0/4 .. 20 mA DC) or voltages (0 .. 10 V DC).

The housing is designed for mounting on top-hat rails in electrical distribution boards, supply voltage and Modbus can be simply looped through via a jumper plug when using several modules.

The module is connected via the RS-485 interface and can be easily configured with the integrated development environment (IDE) as an I/O extension. The I/O extension is fully transparent for the application. The inputs and outputs of the Modbus module can be used in the same way as the ones present in the telecontrol unit. No further configuration tool is required.

Technical Data

  • 4 analog inputs
  • Voltage or current (DC)
  • 0 .. 10 V (Fehler 10 mV)
  • 0/4 .. 20 mA (Fehler: 20 μA)
  • EIA RS-485
  • Operating voltage: 24 V AC/DC +- 10%
  • Power consumption: 25 mA (AC) / 20 mA (DC)
  • Temperature range operation (-5...+55°C)
  • Temperature range Storage (-20...+70°C)

Mechanical data

  • Abmessungen (mm): 35 (B) x 70 (H) x 60 (T)
  • Robust plastic housing
  • DIN-rail mounting
  • Protection class housing / terminals: IP40 / IP20


  • Data sheet