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Communication
3.3 S7 connections
3.3.4
Connection resources for routing
Number of connection resources for routing
The CPUs with DP interface provide a different number of connection resources for the
routing function:
Table 3-12
CPU
31xC, CPU 31x
317-2 DP
31x-2 PN/DP
319-3 PN/DP
Example of a CPU 314C-2 DP
The CPU 314C-2 DP provides 12 connection resources (refer to Table 3-11):
• Reserve two connection resources for PG communication.
• Reserve three connection resources for OP communication.
• Reserve one connection resource for S7-based communication.
This leaves six connection resources available for other communication service, e.g. S7
communication, OP communication, etc.
In addition 4 routing connections via the CPU are possible.
3-32
Number of routing connection resources (for DP/PN CPUs)
As of firmware version
2.0.0
2.1.0
2.2.0
2.4.0
Number of connections for routing
Max. 4
Max. 8
Interface X1 configured as:
MPI:Max. 10
•
DP master: Max. 24
•
DP slave (active): Max. 14
•
Interface X2 configured as:
PROFINET: Max. 24
•
Interface X1 configured as:
MPI: Max. 10
•
DP master: Max. 24
•
DP slave (active): Max. 14
•
Interface X2 configured as:
DP master: Max. 24
•
DP slave (active): Max. 14
•
Interface X3 configured as:
PROFINET: Max. 48
CPU 31xC and CPU 31x, Technical Data
Manual, 01/2006 Edition, A5E00105475-06
- Quick Links:
- Status and Error Indicators: Cpu 31Xc
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