Siemens SIMATIC NET S7-300 User Manual

A-46
S7-CPs for Industrial Ethernet Configuring and Commissioning
Release 01/2007
C79000-G8976-C182-07
2 Characteristics of the Ethernet CPs
2.1 Communications Processors for S7-300
The modules are designed to match the components of the S7-300/C7-300
programmable logic controller and have the following features:
 Compact modules (single or double width) for simple installation on the S7
standard rail
 Can be used in central or expansion racks
 The operator controls and displays are all located on the front panel
 No fan necessary
 Direct backplane bus connection via the supplied bus connector
 Wide design: 8-pin RJ-45 female connector for connecting the CP to twisted
pair Ethernet
 Narrow design: 2 x 8-pin RJ-45 jacks as 2-port switch for connecting the CP to
twisted pair Ethernet
 The project engineering of the CP is possible over MPI or LAN/Industrial
Ethernet. The version of STEP 7 released for the device type is necessary.
TP port:
2 x 8-pin RJ-45 socket
(beneath the front panel)
LED displays
X = Placeholder for hardware
version
Figure 2-1 Example: Front View of the CP 343-1 Lean

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)