Siemens Simatic S7-300 Operating Instructions page 5

Changes in comparison to the previous version
The following table contains changes from the previous versions of the following
documentation from the S7-300 documentation package:
● Technical specifications manual, version 06/2010
● Operating instructions for installation, version 06/2010
The CPU- 314C-2 PN/DP has been added in delivery stage V3.3. It has the same
functionalities as the CPU 314C-2 DP and also has PROFINET functionalities such as those
of the CPU 315-2 PN/DP.
In delivery stage V3.3, the functionality and performance of all C-CPUs and the CPU 317-2
DP were improved compared to their predecessor versions.
Additional information was taken from the chapter "Information on converting to a CPU 31xC
or CPU 31x". If you required more information, however, please refer to the FAQs () on the
Internet.
CPU 312
Encryption of blocks X
using S7-Block
Privacy
Integration of a X
maintenance LED
Configurable -
increase of control
and monitoring
performance
Improved operational -
limits for PT100
Analog input
Data set routing -
Configurable process X
image
Expansion of the X
block number range
Number of displayed X
diagnostic buffer
entries can be
configured in CPU
RUN mode
Reading out the X
service data
Extension of SFC 12 -
with 2 new modes to
trigger the OB 86
during
enabling/disabling
Copying of 512 bytes X
with SFC 81
CPU 31xC and CPU 31x: Installation
Operating Instructions, 03/2011, A5E00105492-12
312C 313C
X X
X X
1, 2 2 2
- -
- X
- -
X X
1
X X
1
X X
1
X X
1
- -
X X
1
313C-2 313C-2 314
DP PtP
X X X
X X X
2 2 1, 2
- - -
- - -
X - -
X X X
1
X X X
1
X X X
1
X X X
1
X - -
X X X
1
314C-2 314C-2 315-2
DP PtP DP
X X X
X X X
2 2 1, 2
- - X
X X -
X - X
1
X X X
1
X X X
1
X X X
1
X X X
1
X - X
1
X X X
1
Preface
317-2
DP
X
X
2
X
-
X
X
X
X
X
X
X
5