Description

• Unmanaged switch for connecting a SIMATIC S7-300 with integral PROFINET interface or an Industrial Ethernet CP or SIMATIC ET 200M to an Industrial Ethernet in an electrical line, tree or star structure
• As many as three additional nodes can be connected
• As an unmanaged switch, the CSM 377 is used for integrating small machines into existing automation networks or for the stand-alone operation of the machines
• Simple, space-saving attachment to SIMATIC S7-300 DIN rail due to design as single-width module in SIMATIC S7-300 format
• Low-cost solution for implementing small, local Ethernet networks
• Rugged, industry-standard node connections with PROFINET-compliant RJ45 plug connectors that latch onto the enclosure to offer additional strain and bending relief

Benefits

• Quick and easy connection of a SIMATIC S7-300 or ET 200M to electrical Industrial Ethernets in linear, tree or star structures by means of three additional RJ45 ports
• Ideal solution for the implementation of small local Ethernets with a SIMATIC S7-300 station
• Secure data communication by means of industry standard device connection with PROFINET-compliant connector IE FC RJ45 Plug 180 and latching of the connector to the enclosure to provide additional strain relief
• Low-maintenance operation thanks to fanless construction
• Quick and easy diagnosis by means of LEDs on the device
• Use of uncrossed connection cables possible by means of integrated autocross over function

Application

For the economical construction of small, electrical Industrial Ethernets with star, tree and linear structures using a SIMATIC S7-300 or ET 200M

Design

The compact switch module CSM 377 features all the advantages of the SIMATIC S7-300 design:

• Compact construction;

the rugged plastic enclosure features the following on the front panel:

4 x RJ45 ports for the connection to Industrial Ethernet (retaining collar)

1 x 2-pin pluggable terminal strip for the connection of the external 24 VDC power supply

LEDs for diagnostics and for status display of the Industrial Ethernet ports

• 10/100BaseTX;

automatic detection of the data rate with autosensing and autocross over function for the connection of IE FC cables by means of IE FC RJ45 Plug 180 up to 100 m

• Simple mounting;

the CSM 377 switch module is mounted on the mounting rail of the S7-300. As it has no connection to the backplane bus of the S7-300 or ET 200M, it must either be inserted at the beginning (first module to the left of the CPU) or at the end (last module on far right) of the S7-300 station. The connection to the CPU of the S7-300 is either by means of an Industrial Ethernet cable or an Industrial Ethernet twisted pair cord.

• Three further Industrial Ethernet interfaces (TP ports) are available for the connection of additional Ethernet nodes such as HMI panels or ET200
• The CSM 377 can be operated without a fan and no backup battery is necessary
• The module can be replaced without a programming device

Function

• 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 Fast Connect cable and IE FC RJ45 Plug 180; of which no more than 10 m by means of patching with TP cord

You can place an order for the SIEMENS CSM 377 Compact Switch Module, which is applicable in the Factory Automation, Marine industries, online via one of our Middle East branches (Dubai/ Oman/Saudi Arabia) and get it delivered at a low cost at a specific time.