Blocks In Profinet Io; Table 8- 1 System And Standard Functions That Are New Or Have To Be Replaced - Siemens SIMATIC S7-400H System Manual

8.3

Blocks in PROFINET IO

Compatibility of the New Blocks
For PROFINET IO, some new blocks were created, among other things, because larger
configurations are now possible with PROFINET. You can also use the new blocks with
PROFIBUS.
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 the following functions:
● System and standard functions for SIMATIC that you may need to replace when
● New system and standard functions
Table 8- 1
Blocks
SFC 13"DPNRM_DG"
Reading diagnostics data of a
DP slave
SFC 58 "WR_REC"
SFC 59 "RD_REC"
Write/read record in the I/O
devices
SFB 52 "RDREC"
SFB 53 "WRREC"
Read/write record
SFB 54 "RALRM"
Evaluating alarms
SFB 81 "RD_DPAR"
Reading predefined parameters
SFC 5 "GADR_LGC"
Determining the start address of
a module
SFC 70 "GEO_LOG"
Determining the start address of
a module
S7-400H
System Manual, 03/2012, A5E00267695-11
migrating from PROFIBUS DP to PROFINET IO.
System and standard functions that are new or have to be replaced
PROFINET IO
No
Replacement:
Event-related: SFB 54

Status-related: SFB 52

No
Replacement: SFB 53/52
Yes
Yes
Yes
No
Replacement: SFC 70
Yes
PROFINET
8.3 Blocks in PROFINET IO
PROFIBUS DP
Yes
Yes, if you will have not already
replaced these SFBs under
DPV 1 by SFB 53/52.
Yes
Yes
Yes
Yes
Yes
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