Siemens SIMATIC S7-400 Manual page 109

Blocks
SFC 71
Query the slot belonging to a
logical address
The following table provides an overview of the system and standard functions for SIMATIC,
whose functionality must be implemented by other functions when converting from
PROFIBUS DP to PROFINET IO.
Table 6-2
Blocks
SFC 54
Read predefined parameters
SFC 55
Write dynamic parameters
SFC 56
Write predefined parameters
SFC 57
Assigning module parameters
You cannot use the following SIMATIC system and standard functions with PROFINET IO:
● SFC 7 Trigger hardware interrupt on DP master
● SFC 11 Synchronize groups of DP slaves
● SFC 72 Read data from a communication partner within local S7 station
● SFC 73 Write data to a communication partner within local S7 station
● SFC 74 Abort an existing connection to a communication partner within local S7 station
● SFC 103 Determine the bus typology in a DP master
Comparison of the Organization Blocks of PROFINET IO and PROFIBUS DP
The following table lists the changes at OBs 83 und OB 86:
Table 6-3
Blocks
OB 83
Removing and inserting
modules during operation
OB 86 Rack failure
S7-400 Automation System, CPU Specifications
Manual, 10/2006, 6ES7498-8AA04-8BA0
PROFINET IO
Yes
System and Standard Functions in PROFIBUS DP that must be Implemented with
Different Functions in PROFINET IO
PROFINET IO
No
Replacement: SFB 81
No
Replicate via SFB 53
No
Replicate via SFB 81 and SFB
53
No
Replicate via SFB 81 and SFB
53
OBs in PROFINET IO and PROFIBUS DP
PROFINET IO
New error information
New error information
PROFINET
6.4 Blocks in PROFINET IO
PROFIBUS DP
Yes
PROFIBUS DP
Yes
Yes
Yes
Yes
PROFIBUS DP
Unchanged
Unchanged
6-7