• Connection of a SIMATIC S7-300 to a higher-level electrical network in a linear, tree or point-to-point structure
• Construction of a small local network with one SIMATIC S7-300 and three other Ethernet nodes

Thanks to the switching technology used, the CSM 377 is suitable for use in PROFINET networks, but offers no additional PROFINET functions, i.e. no integration into the PROFINET diagnostics.

Network topology and network configuration

When configuring the network, it is necessary to observe the following boundary conditions:

• Length of the TP cable between two nodes:
  • max. 100 m with Industrial Ethernet FastConnect cable and IE FC RJ45 Plug 180;
    of which no more than 10 m by means of patching with TP cord

Connection of SIMATIC S7-300 with CSM 377 to Industrial Ethernet with linear structure

Construction of a local Industrial Ethernet with SIMATIC S7-300 and CSM 377 in a point-to-point structure

Configuration

The Compact Switch Module CSM 377 is an unmanaged switch and requires no configuration.

Diagnostics

The following information is indicated on the device by means of LEDs:

• Power
• Port status
• Data traffic