Compact Switch Modules (CSM)

More connectivity to SIMATIC at a low cost


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Increase the number of interfaces directly on the SIMATIC S7, ET 200M or LOGO! logic modules at low cost: integrate machines into existing plants with the aid of the unmanaged Compact Switch Modules (CSM).

The unmanaged CSM in the respective design of the LOGO!, SIMATIC S7-1200/S7-300 or ET 200M expand the connection options thanks to their additional interfaces.


  • LOGO! CSM for LOGO! logic modules with industrial Ethernet interface

  • CSM 1277 for SIMATIC S7-1200

  • CSM 377 for SIMATIC S7-300, S7-mEC or ET 200M


  • Low-cost installation of small, local Industrial Ethernet networks

  • Fast and simple connection of SIMATIC S7 ET 200M or LOGO! logic modules to electrical industrial Ethernet networks

  • Flexible expansion of the network thanks to simple connection of the CSM

  • Space-saving design of each SIMATIC or LOGO! terminal device

  • Support of stand-alone use as unmanaged 4-port switch for industrial Ethernet networks