Application and functions
1.2 Functions and communication services
CP 443-5 Extended
10 Equipment Manual, 01/2023, C79000-G8976-C162-10
DPV1 functionality
S7-compatible
• DP slaves complying with the PROFIBUS DPV0
and DPV1 standard
• Siemens DP slaves
Refer to the information about the required CPU
in:
• Table 1-1 Use with the current CPU types
(Page 13)
• Table 1-3 Use with no longer available CPU
types - part 2 (Page 15)
• DP Slaves complying with the PROFIBUS DPV0
standard (DP slaves complying with the DPV1
standard can only be used with restricted
functionality)
• Siemens DP slaves
(For more information on the topic of DPV1, refer to the STEP 7 online help)
• CiR (Configuration in RUN) - in the standard system
By making a change to the configuration with CiR (Configuration in RUN), it is possible to
put a DP slave / DP slot extension into operation or take it out of operation when
necessary while the system is running.
In other words, you can configure and activate additional DP slaves or DP slots while the
S7 station is in RUN.
• Enabling /disabling DP slave - in the standard system
DP slaves can be activated and deactivated by the user program using system function
SFC12.
• Diagnostics requests
As a DP master (class 1), the CP 4435 supports diagnostics requests of a DP master (class
2).
• Getting the bus topology in a DP master system
The CP 443-5 Extended operating as DP master supports the measurement of the
PROFIBUS bus topology in a DP master system using a diagnostics repeater (DP slave).
System function SFC103 in the user program can instruct diagnostics repeaters to
measure the PROFIBUS BUS topology in a DP master system. When completed, the results
of the measurements made by the diagnostics repeater can then be read in and processed
by the user program.
• Open communications services (SEND/RECEIVE interface) over FDL connections of the
following type:
– Specified FDL connections
– Free layer 2 connections
– Broadcast
– Multicast
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