Table 3-11 Availability Of Connection Resources - Siemens Simatic S7-300 Technical Data Manual

Communication
3.3 S7 connections
Availability of connection resources
Table 3-11 Availability of connection resources
CPU Total number
connection
resources
312C 6
313C 8
313C-2 PtP
313C-2 DP
314C-2 PtP 12
314C-2 DP
312 6
314 12
315-2 DP 16
315-2 PN/DP
317-2 DP 32
317-2 PN/DP
Note
When using a CPU 315-2 PN/DP, you can configure up to 14 connection resources for
S7 communication in NetPro: These connections are then reserved. When using a
CPU 317-2 PN/DP, you can configure up to 16 connection resources for S7 communication
in NetPro.
3-30
Reserved for
PG OP communication
communication
1 to 5, default 1 1 to 5, default 1
1 to 7, default 1 1 to 7, default 1
1 to 11, default 1 to 11, default 1
1
1 to 5, default 1 1 to 5, default 1
1 to 11, default 1 to 11, default 1
1
1 to 15, default 1 to 15, default 1
1
1 to 31, default 1 to 31, default 1
1
Free
S7 connections
S7 basic
communication
0 to 2, default 2 Displays all non-
reserved S7
0 to 4, default 4
connection resources
as free connection
resources.
0 to 8, default 8
0 to 2, default 2
0 to 8, default 8
0 to 12, default 12
0 to 30, default 0
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05