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• Open communications services (SEND/RECEIVE interface) over FDL connections of the
following type:
– Specified FDL connections
– Free layer 2 connections (SDA, SDN)
– Broadcast
– Multicast
The services of the CP listed above can be used independently at the same time.
1.4
Performance data and behavior in operation
1.4.1
Transmission speeds supported
The transmission speed is set with the SIMATIC STEP 7 configuration software. For permitted
values, refer to Technical specifications (Page 45).
Note
Remember the cable length
The permitted cable length must be kept to depending on the transmission speed. Refer to
the information in /3/ (Page 54).
1.4.2
Characteristic data of the DP interface / DP master
General characteristic data
When operating the CP as a DP master, the following characteristic data is significant:
Characteristic
Number of operable DP slaves
Total number of operable slots
Size of the DP data areas (total):
•
•
Size of the DP data areas (per DP slave):
•
•
Size of the DP diagnostics data:
PROFIBUS address range for DP master mode
CP 342-5
Equipment Manual, 01/2023, C79000-G8976-C146-11
DP input area
DP output area
DP input area
DP output area
Application and functions
1.4 Performance data and behavior in operation
Explanation / values
124 max.
1024 max.
2160 bytes max.
2160 bytes max.
244 bytes max.
244 bytes max.
240 bytes per DP slave
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