Index - Siemens SIMATIC S7-400H Manual

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 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 diagnostic buffer entries
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"
H-specific LEDs
LEDs REDF, IFM1F, IFM2F, MSTR, RACK0 and RACK1 show the response
specified in the following table.
LED
REDF
IFM1F
IFM2F
MSTR
RACK0 RACK0
RACK1 RACK1
S7-400H Programmable Controller Fault-Tolerant Systems
A5E00068197-04
Function Standard S7-400 CPU
No data records for the
No data record for the
redundancy error OBs
No data record for the
CPU 417-4H in Separate
No
Data records for all LEDs
H-specific LEDs
(OB70, OB72)
W#16#00
No
Data records for all LEDs
H-specific LEDs
No
Yes Cannot be configured in
Yes
Yes
Yes No: neither cyclically, nor
by means of SFC60
"GD_SND" and SFC61
"GD_RCV"
Yes
No
Response
Dark
Dark
Dark
Lights
Lights Lights
Dark Dark
Separate Operation
Operation
Yes
Data records for all
interrupt OBs
W#16#F8
Yes
Yes
STEP 7
No
No
No
Yes
B-3