Siemens Simatic S7-300 Technical Data Manual page 49

Comparison of the System and Standard Functions of PROFINET IO and PROFIBUS DP
For CPUs with an integrated PROFINET interface, the table below provides you with an
overview of:
• System and standard functions for SIMATIC that you may need to replace when
• New system and standard functions
Table 3-6
Blocks
SFC13 (read diagnostic data of
a DP slave)
SFC58/59 (write/read data
record in I/O)
SFB52/53 (read/write data
record)
SFB54 (evaluate alarm)
SFC102 (read predefined
parameters)
new:
SFB81 (read predefined
parameters)
SFC5 (query start address of a
module)
new:
SFC70 (query start address of a
module)
SFC49 (query the slot belonging
to a logical address)
new:
SFC71 (query the slot belonging
to a logical address)
CPU 31xC and CPU 31x, Technical data
Manual, Edition 08/2004, A5E00105475-05
converting from PROFIBUS DP to PROFINET IO.
New System Standard Functions of PROFINET IO and PROFIBUS DP and Those That
Must Be Replaced
PROFINET IO
No
Substitute:
event-related: SFB 54
•
state-related: SFB 52
•
No (replacement: SFB53/52)
Yes
Yes
No (replacement: SFB81)
Yes
No (replacement: SFC70)
Yes
No (replacement: SFC71)
Yes
Communication
3.2 Communication services
PROFIBUS DP
Yes
yes (but should already have
been replaced by SFB53/52 in
DPV1)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
3-21