Siemens SIMATIC NET S7-300 User Manual

2 Characteristics of the Ethernet CPs
A-51
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
 Twisted pair attachment using RJ-45 jack
In areas with little EMI such as in offices and wiring closets, the CP can be
attached to Ethernet using twisted pair and the RJ-45 jack.
e.g. Optical Switch
Module (OSM)
CP
CP
CP
CP
Figure 2-6
2.3.2 Optical Ind. Ethernet with AUI Attachment
*)
The CP can also be attached to Industrial Ethernet using an optical transceiver
and the AUI port.
FO cable
Optical
module
CP
Star coupler
Drop cable 727-1
Figure 2-7
*)
The AUI attachment does not exist on all CPs for S7-300/S7-400; Please
note the information in the manual.

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)