Preface   
 
  CPU 31xC and CPU 31x: Installation  
4  Operating Instructions, 03/2011, A5E00105492-12 
 
CPU  Convention: 
CPU designations: 
Order number  As of firmware version 
CPU 312  6ES7312-1AE14-0AB0  V3.3 
CPU 314  6ES7314-1AG14-0AB0  V3.3 
CPU 315-2 DP  6ES7315-2AH14-0AB0  V3.3 
CPU 315-2 PN/DP  6ES7315-2EH14-0AB0  V3.2 
CPU 317-2 DP  6ES7317-2AK14-0AB0  V3.3 
CPU 317-2 PN/DP  6ES7317-2EK14-0AB0  V3.2 
CPU 319-3 PN/DP 
CPU 31x 
6ES7318-3EL01-0AB0   V3.2 
 
All CPUs with PROFINET properties are grouped under the designation CPU 31x PN/DP, as 
the following table shows: 
 
CPU  Convention: 
CPU designations: 
Order number  As of firmware version 
CPU 314C-2 PN/DP  6ES7314-6EH04-0AB0  V3.3 
CPU 315-2 PN/DP  6ES7315-2EH14-0AB0  V3.2 
CPU 317-2 PN/DP  6ES7317-2EK14-0AB0  V3.2 
CPU 319-3 PN/DP 
CPU 31x PN/DP 
6ES7318-3EL01-0AB0   V3.2 
 
 
 
 
Note 
A description of the special features of the failsafe CPUs of the S7 product range is available 
in the product information at the following Internet address 
(http://support.automation.siemens.com/
WW/view/en/11669702/133300). 
 
 
Note 
We reserve the right to include a product Information containing the latest information on 
new modules or modules of a more recent version.