Siemens SIMATIC S7-400H Manual page 303

Table B-1 Differences between S7-400 and S7-400H, continued
Function
Specify the rack number
and the CPU in the OB start
information
SSL ID W#16#0019 (status
of all LEDs)
SSL ID W#16#0222 (data
record for the specified
interrupt)
SSL ID W#16#0232 index
W#16#0004 byte 0 of the
word "index" in the data word "index" in the data
record
SSL ID W#16#xy71
fault-tolerant CPU group
information
SSL ID W#16#0174 (status
of a module LED)
Specify the rack number
and the CPU in diagnostics
buffer entries
Multi-DP master mode
Direct communication
between DP slaves
Equidistance of DP slaves
Groups of DP slaves
synchronize with SFC11
"DPSYC_FR"
Global data communication
S7 basic communication
SFC90 "H_CTRL"
Central use of FMs Central use of FMs
Operator panel can be
operated on the MPI
Operator panel can be
operated on the operated on the
PROFIBUS-DP
Automation System S7-400H Fault-tolerant Systems
A5E00068197-07
Standard S7-400 CPU
No
No data records for the
fault tolerant-specific
LEDs
No data record for the
redundancy error OBs
(OB70, OB72)
W#16#00
No
No data record for the
fault tolerant-specific
LEDs
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes Yes
Yes
Yes
H-CPU in single
operation
Yes
Data records for all
LEDs
Data records for all
interrupt OBs
W#16#F8
Yes
Data records for all
LEDs
Yes
Yes
No
No
No
No: neither cyclically,
nor by means of
SFC60 "GD_SND" and
SFC61 "GD_RCV"
No
Yes
Yes Yes
Yes
Yes
Single Operation
H-CPU
redundantsystem
mode
Yes
Data records for all
LEDs
Data records for all
interrupt OBs
Single mode: W#16#F8
or W#16#F9
Redundant: Redundant:
W#16#F8 and
W#16#F1 or W#16#F1 or
W#16#F9 and
W#16#F0
Yes
Data records for all
LEDs
Yes
No
No
No
No
No: neither cyclically,
nor by means of
SFC60 "GD_SND" and
SFC61 "GD_RCV"
No
Yes
No No
Yes
No
B-3