Technical data

Table Of Contents
System Status Lists (SSL)
System Software for S7-300/400 System and Standard Functions - Volume 2/2
A5E00739858-01
33-13
33.9 SSL-ID W#16#xy15 - Block Types
Purpose
If you read the partial list with SSL-ID W#16#xy15, you obtain the block types that
exist on the module.
Header
The header of partial list SSL-ID W#16#xy15 is structured as follows:
Contents Meaning
SSL-ID The SSL-ID of the partial list extract
W#16#0015: Data records of all block types of a module
INDEX Not relevant
LENTHDR W#16#0006: one data record is 5 words long (10 bytes)
N_DR Number of data records
Data Record
A data record of partial list SSL-ID W#16#xy15 has the following structure:
Name Length Meaning
Index 1 word Block type number
W#16#0800: OB
W#16#0A00: DB
W#16#0B00: SDB
W#16#0C00: FC
W#16#0E00: FB
MaxAnz 1 word Maximum number of blocks of the type
OBs: max. possible number of OBs for a CPU
DBs: max. possible number of DBs including DB0
SDBs: max. possible number of SDBs including
SDB2
FCs and FBs: max. possible number of loadable blocks
MaxLng 1 word Maximum total size of the object to be loaded in Kbytes
Maxabl 2 words Maximum length of the work memory part of a block in bytes