Siemens SIMATIC NET S7-300 User Manual

2 Characteristics of the Ethernet CPs
A-50
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
 CP with integrated switch - twisted-pair attachment to RJ-45 female
connector
To set up small local area networks or to connect several Ethernet devices a
4-port switch was integrated in the CP 443-1 Advanced and a 2-port switch in
the CP 343-1 and CP 343-1 Lean.
With the autocrossing mechanism integrated in the switch, it is possible to
establish the connection from a laptop or PG directly using standard cables. A
crossover cable is not necessary.
Example of cabling:
S7-300 CP
PC/PG with Ethernet
CP
HMI station with
Ethernet CP
Operator Inter-
face functions
For example:
Optical Switch
Module (OSM)
CP 443-1 advanced
Figure 2-5

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)