Analog input modules record process signals such as pressure or temperature and forward them in digitalized 16-bit format to the control. They are suitable for measuring voltage, current (2-wire and 4-wire transducers), and resistance, as well as for the connection of resistance thermometers.

Analog output modules convert a 16-bit digital value into a current or a voltage and output this to the process. They are suitable, for example, for controlling proportional valves or small servo drives.

The 30 mm wide I/O modules are especially suitable for use in extremely confined spaces, have settable parameters and diagnostic functions and can thus be adapted flexibly to the respective process requirements.

The following analog I/O modules are available:

• Analog input module AI 4XU/I/RTD, 4XM12
• Analog output module AQ 4xU/I, 4xM12