Siemens SIMATIC NET S7-1200 - Application and properties; Communications services

Network topologies
2
2.1 Network topologies
Switching technology allows extensive networks to be set up with numerous nodes and
simpli󹪝es network expansion.
Which topologies can be implemented?
Linear (bus) and star topologies can be implemented with the compact switch module
CSM 1277.
Note
Make sure that the maximum permitted cable lengths for the relevant devices are not exceeded.
You will 󹪝nd the permitted cable lengths in the technical speci󹪝cations.
Bus topology
Figure 2-1 Bus topology with the CSM 1277
Compact Switch Module CSM 1277
Compact Operating Instructions, 06/2022, A2B00079397-02 9