Siemens SIMATIC NET S7-300 Operating Instructions

4.2 Installation
Type of mounting
The Compact Switch Module CSM 377 is intended exclusively for mounting on a SIMATIC S7‑300
mounting rail.
Note
When installing and operating the device, keep to the installation instructions and safety-related
notices as described here and in the manual SIMATIC NET Industrial Ethernet Twisted Pair and
Fiber Optic Networks /1/.
Note
Provide suitable shade to protect the device against direct sunlight. This avoids unwanted
warming of the device and prevents premature aging of the device and cabling.
Installation
4.2 Installation
Compact Switch Module CSM 377
24 Operating Instructions, 06/2022, A2B00073499-02

Siemens SIMATIC NET S7-300 Specifications

General

Product Type Designation	SIMATIC NET S7-300
Mounting	DIN rail mounting
Protection Class	IP20
CPU Models	Various models available (e.g., CPU 312, CPU 314)
Communication Interfaces	MPI, PROFIBUS DP
Power Supply	24 V DC power supply required. Different power supply modules available.
I/O Modules	Digital input modules, digital output modules, analog input modules, analog output modules
Programming	STEP 7 software
Supply Voltage	24V DC or 120/230V AC (depending on model)
Digital Inputs	Available via digital input modules
Digital Outputs	Available via digital output modules
Analog Inputs	Available via analog input modules
Analog Outputs	Available via analog output modules
Communication Functions	MPI, PROFIBUS DP, Ethernet (depending on model)
Protocols	MPI, PROFIBUS DP, TCP/IP (depending on model)
Operating Temperature	0°C to 60°C
Storage Temperature	70 °C
Memory	Depends on CPU model (e.g., 32 KB to 1.5 MB)