Merk: Siemens
Model: 275159593
Beschikbaarheid: C - Geen voorraad artikel
Prijs: €159,00
incl. BTW €192,39
Aantal:     - of toevoegen aan -   Verlanglijst
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  • Digital inputs as supplement to the integral I/O of the CPUs
  • For flexible adaptation of the controller to the relevant task
  • For subsequent expansion of the system with additional inputs


Digital input modules allow the connection of the controller to digital signals of the process.

This provides users with the following advantages:

  • Optimum adaptation:
    With signal modules which can be mixed as desired, users can adapt their controllers exactly to the relevant task. This avoids superfluous investments. Modules with 8, 16, and 32 input/output channels are available.
  • Flexibility:
    If the task is expanded subsequently, the controller can be upgraded. Updating of the user program is extremely simple.


The SM 1221 digital input signal modules convert the level of the external digital signals from the process into the internal signal level of the S7-1200.

More information


Information material for downloading can be found in the Internet:

Datasheet Datasheet
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