Technical data

Table Of Contents
System Status Lists (SSL)
System Software for S7-300/400 System and Standard Functions - Volume 2/2
A5E00739858-01
33-11
33.8 SSL-ID W#16#xy14 - System Areas
Purpose
If you read the partial list with SSL-ID W#16#xy14, you obtain information about the
system areas of the module.
Header
The header of partial list SSL-ID W#16#xy14 is structured as follows:
Contents Meaning
SSL-ID The SSL-ID of the partial list extract
W#16#0014: all system areas of a module
W#16#0F14: only for partial list header information
INDEX Not relevant
LENTHDR W#16#0008: one data record is 4 words long (8 bytes)
N_DR Number of data records
You must at least assign a number of 9 data records. If you select a target
area which is too small, SFC51 does not provide a data record.
Data Record
A data record of partial list SSL-ID W#16#xy14 has the following structure:
Name Length Meaning
Index 1 word Index of the system area
W#16#0001: PII (number in bytes)
W#16#0002: PIQ (number in bytes)
W#16#0003: memory (number in bits)
Note:
This index is only provided by the CPU,
where the number of flags can be
shown in one word.
If your CPU does not provide this value,
you must evaluate index W#16#0008.
W#16#0004: timers (number)
W#16#0005: counters (number)
W#16#0006: number of bytes in the logical address area
W#16#0007: local data (entire local data area of the CPU
in bytes)
Note:
This index is only provided by the CPU,
where the number of flags can be
shown in one word.
If your CPU does not provide this value,
you must evil index W#16#0009.
W#16#0008: memory (number in bytes)
W#16#0009: local data (entire local data area of the CPU
in Kbytes)