Siemens SIMATIC NET S7-300 Operating Instructions

3.6 Technical speci󹪝cations
Technical speci󹪝cations of the CSM 377
Connectors
Attachment of end devices or network components
over twisted pair
4 x RJ-45 sockets with MDI-X pinning 10/100 Mbps
(half/ full duplex), 󹪞oating
Connector for power supply 2-terminal plug-in block
Electrical data
Power supply Infeed 19.2 to 28.8 V DC
Safety extra-low voltage (SELV)
Power loss at 24 V DC 1.6 W
Current consumption at rated voltage 70 mA
Overvoltage protection at input PTC resettable fuse (0.5 A / 60 V)
Permitted cable lengths
Connection over Industrial Ethernet FC TP cables
0 – 100 m
0 – 85 m
Industrial Ethernet FC TP standard cable with IE FC
RJ45 plug 180
or
over Industrial Ethernet FC outlet RJ45 with 0 -
90 m Industrial Ethernet FC TP standard cable +
10 m TP cord
Industrial Ethernet FC TP marine/trailing cable with
IE FC RJ45 plug 180
or
0 - 75 m Industrial Ethernet FC TP marine/trailing
cable + 10 m TP cord
learnable MAC addresses / Aging Time
learnable MAC addresses 1024
Aging time 300 seconds
Permitted ambient conditions
Operating temperature 0 °C to +60 °C
Storage/transport temperature -40 °C to +70 °C
Relative humidity in operation ‹ 95% (no condensation)
Operating altitude 2000 m at max 56 °C ambient temperature
3000 m at max. 50 °C ambient temperature
Immunity EN 61000-6-2
Emission EN 61000-6-4
Degree of protection IP20
MTBF
MTBF 144 years
Construction
Dimensions (W x H x D) in mm 40 x 125 x 118
Product properties
3.6 Technical speci󹪝cations
Compact Switch Module CSM 377
Operating Instructions, 06/2022, A2B00073499-02 17

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)