Technical data

Table Of Contents
System Status Lists (SSL)
System Software for S7-300/400 System and Standard Functions - Volume 2/2
33-46
A5E00739858-01
Contents Meaning
INDEX For the partial list extract with SSL-ID W#16#0C91:
- S7-400:bits 0 to 14: logical base address of the module
Bit 15: 0 = input, 1 = output
- S7-300:bits 0 to 14: any logical base address of the module
Bit 15: 0 = input, 1 = output
For the partial list extract with SSL-ID W#16#4C91 (S7-400 only):
Bits 0 to 14 : logical base address of the module
Bit 15 : 0 = input, 1 = output
For the partial list extract with SSL-IDs W#16#0091,
W#16#0191,W#16#0291, W#16#0391, W#16#0491, W#16#0591,
W#16#0A91, W#16#0E91,W#16#0F91:
INDEX is irrelevant, all modules (in the rack and in the distributed I/Os)
For the partial list extract with SSL-IDs W#16#0991 (S7-400 only)
- W#16#xx00: all modules of a DP master system (xx contains
the DP master system ID)
For the partial list extract with W#16#0D91:
- W#16#00xx: all modules and interface modules of a rack (xx
contains the number of the rack)
- W#16#xxyy: all modules of a DP station or all IO devices of a
PROFINET IO station (PROFIBUS DP: xx contains the DP
master system ID, yy the station number; PROFINET IO: bits
0 to 10: station number, bits 11 to 14: the last two places in
the PNIO subsystem ID, Bit 15: 1 (see third illustration below
for adr1)
LENTHDR W#16#0010: One data record is 8 words long (16 bytes)
N_DR Number of data records. Depending on the product the number of records
transferred in the SFC 51 can be lower
In the case of W#16#0091, W#16#0191 and W#16#0F91 two additional data
records are supplied per rack:
A record for the power supply in as far as it exists and has been planned and
A record for the rack.
The sequence of the records in case of a centralized structure is: PS, Slot 1,
Slot 2, ..., Slot 18, rack.