S7-300, CPU 31xC and CPU 31x: Installation 
Operating Instructions, Edition 08/2004, A5E00105492-05 
iii 
Preface 
Purpose of the manual 
This manual contains all the information you need to configure, install, wire, address and 
commission an S7-300. 
In addition, you will become familiar with the tools you can use to diagnose and eliminate 
errors in hardware and software. 
Basic knowledge 
To understand this manual, you require a general knowledge of automation engineering. You 
should also be accustomed to working with STEP 7 basic software. For further information, 
refer to the Programming with STEP 7 V5.3 manual. 
Area of application 
 
as of version CPU  Convention:  
CPU designation 
Order number 
Firmware  Hardware 
CPU 312C  6ES7312-5BD01-0AB0  V2.0.0  01 
CPU 313C  6ES7313-5BE01-0AB0  V2.0.0  01 
CPU 313C-2 PtP  6ES7313-6BE01-0AB0  V2.0.0  01 
CPU 313C-2 DP  6ES7313-6CE01-0AB0  V2.0.0  01 
CPU 314C-2 PtP  6ES7314-6BF01-0AB0  V2.0.0  01 
CPU 314C-2 DP 
CPU 31xC 
6ES7314-6CF01-0AB0  V2.0.0  01 
CPU 312  6ES7312-1AD10-0AB0  V2.0.0  01 
CPU 314  6ES7314-1AF10-0AB0  V2.0.0  01 
CPU 315-2 DP  6ES7315-2AG10-0AB0  V2.0.0  01 
CPU 315-2-PN/DP  6ES7315-2EG10-0AB0  V2.3.0  01 
CPU 317-2 DP  6ES7317-2AJ10-0AB0  V2.1.0  01 
CPU 317-2 PN/DP 
CPU 31x 
6ES7317-2EJ10-0AB0  V2.3.0  01 
 
 
Note 
The special features of the 315F-2 DP and CPU 317F-2 DP CPUs are described in their 
Product Information, available on the Internet at 
http://www.siemens.com/automation/service&support, article ID 17015818.