Modbus module with 8 digital inputs and 4 digital outputs

With the EX9043 Modbus module, the inputs and outputs of M2M control telecontrol systems can be expanded easily and completely transparent for the application.


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The EX9043 has 8 digital inputs and 4 digital open-collector outputs.

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 equipment is required.

Technical Data

  • 8 digital inputs
  • Log 0: 0..1 V; Log 1: 4..30 V
  • Input resistance: 3 kΩ
  • open-Collector
  • max Load: DC 100 mA / 30 V
  • Modbus (slave)
  • EIA RS-485
  • Expanded temperature range (-25...+70°C)
  • Expanded temperature range (-25...+70°C)
  • Operating voltage: 10-30 Vdc
  • Power consumption: 1,2 W
  • Expanded temperature range (-25...+70°C)

Mechanical data

  • Dimensions (mm, without terminals): 70 (W) x 100 (L) x 20 (H)
  • Robust plastic housing
  • DIN-rail or wall mounting (exchangeable holders)