Siemens Simatic S7-300 CPU 31xC Series User Manual

Preface
S7-300, CPU 31xC and CPU 31x: Installation
vi Operating Instructions, Edition 08/2004, A5E00105492-05
Additional information required:
Name of the manual Description
Reference Manual
System software for S7-300/400 system and standard
functions
Description of the SFCs, SFBs and OBs.
This manual is part of the STEP 7
documentation package. For further
information, refer to the STEP 7 Online
Help.
Manual
SIMATIC NET: Twisted Pair and Fiber-Optic Networks
Description of Industrial Ethernet
networks, network configuration,
components, installation guidelines for
networked automation systems in
buildings, etc.
Manual
Component-based Automation: Configuring systems with
SIMATIC iMap
Description of the engineering software
iMAP
Manual
Programming with STEP 7 V5.3
Programming with STEP 7
Manual
SIMATIC communication
Basics, services, networks,
communication functions, connecting
PGs/OPs, engineering and configuring in
STEP 7.
S7-300 documentation package: Additional documentation
Recycling and Disposal
The devices described in this manual can be recycled, because their components contain a
minimum of harmful substances. For environment-friendly recycling and disposal of your old
equipment, contact a certified disposal facility for electronic scrap.

Siemens Simatic S7-300 CPU 31xC Series Specifications

General

Series	S7-300 CPU 31xC
Power Supply	24 V DC
Communication Interfaces	MPI, PROFIBUS DP
Programming Languages	LAD, STL, FBD, SCL
Operating Temperature	0°C to +60°C
Memory	48 KB - 512 KB
Dimensions	40 x 125 x 130 mm (varies by model)