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

The following analog input modules are available:

• AI 4xU/I/RTD/TC ST;
  analog input module with 4 channels; 16 bit resolution; accuracy +/-0.3 %; one potential group; 10 V common mode voltage; parameterizable diagnostics; hardware interrupts (two upper and lower limit values); calibration during runtime.
  Module width 25 mm
• AI 8xU/I/RTD/TC ST;
  analog input module with 8 channels; 16 bit resolution; accuracy +/-0.3 %; one potential group; 10 V common mode voltage; parameterizable diagnostics; hardware interrupts (two upper and lower limit values); calibration during runtime.
  Module width 35 mm
• AI 8xU/I HS;
  Analog input module with 8 channels; 16-bit resolution; accuracy +/-0.3%; one potential group; 10 V common mode voltage; parameterizable diagnostics; hardware interrupts (two upper and lower limit values); high-speed module with 8 channels in 125 µs; isochronous mode; calibration during runtime.
  Module width 35 mm
• AI 8xU/R/RTD/TC HF;
  Analog input module with 8 channels; 16-bit resolution; accuracy +/-0.1%; one potential group; 30 V AC / 60 V DC common-mode voltage; parameterizable diagnostics; hardware interrupts (two upper and lower limit values); calibration during runtime; characteristic linearization according to GOST 9. Channel for TC compensation or "real" measurement channel; fast mode.
  Module width 35 mm
• AI 8xU/I HF;
  Analog input module with 8 channels; 16-bit resolution; accuracy +/-0.1%; one potential group; 30 V AC / 60 V DC common mode voltage; parameterizable diagnostics; hardware interrupts (two upper and lower limit values); calibration during runtime.
  Module width 35 mm