MES PI4 Machine Connection

PI4 connection boxes can be used on all machines to capture different signals off electrically.

The LOOMDATA PI4 module

Recording of signals

PI4 modules are used for capturing or controlling signals of a machine electrically.

  • digital keys
  • signals for material change
  • direction of rotation


The PI4 modules are integrated in a transparent polycarbonate housing. This protective shell allows an easy control of function and wiring at any time.
The inputs and outputs are protected against overvoltage and have a current limit.

Connection of the PI4 to the machine station

1 to 16 PI4s max can be connected to a machine station (MS7, MS4). The PI4 is placed and wired in the machine. The communication between PI4 module and machine station is made via the IOBus (cable: 4×0.34mm, shielded).

Connection variants

Digital inputs:

  • Galvanically isolated
  • Up to 60V (AC/DC)
  • Overvoltage protection
  • Direct connection of 2-wire sensors
  • Application: recording of run and stop signals

Digital outputs:

  • Galvanically isolated
  • Up to 60V (AC/DC), 160mA
  • Application: control of signal lamps, alarm signals for external systems, stop and/or block machine

Analog inputs:

  • Galvanically isolated to Bus interface
  • Input area +/- 0..1V (0..10V), 12 Bit
  • Application: recording of analog signals such as temperature, pressure, concentration and more

Module variants


  • 4 digital inputs
  • 0 digital outputs


  • 4 digital inputs
  • 4 digital outputs


  • 4 analog inputs
  • 4 digital outputs

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