17 SSL System status list
17.1 Overview SSL
This chapter describes all the partial lists of the system status list, readable via SFC 51
RDSYSST or via Hardware configurator. SSL partial lists, which are only for internal
usage, are not described here.The SSL (system status list) describes the current status
of a automation system. It contains the following information:
n System data
– These are fixed or assigned characteristics data of a CPU as configuration of the
CPU, status of the priority classes and communication.
n Module status data in the CPU
– This describes the current status of the components monitored by system diag-
nostic functions.
n Diagnostics data
– The diagnostics data of modules with diagnostic capabilities assigned to the CPU.
n Diagnostics buffer
– Diagnostic entries of the diagnostic buffer in the order in which they occur.
n Only partial lists of the SSL may be accessed. The partial lists are virtual list, this
means, they are only created by the operating system of the CPUs when specifically
requested and my only be read.
n A partial list or a list extract may be read e.g. by means of the SFC 51 RDSYSST.
n Here with the parameters SSL_ID and INDEX you define the kind of information to
read.
A partial list always has the following structure:
n Header
– SSL-ID
– Index
– Length of the record set in byte
– Number of record sets of the partial list
n Record sets
– A record set of a partial list has a certain length, depending on the information of
the partial list. It depends on the partial list as the data words are used in a record
set.
Structure
SSL-ID
High byte Low byte
Bit number 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Module class:
CPU: 0000
IM: 0100
FM: 1000
CP: 1100
Number of the partial list
extract:
Definition of the subset
of the partial list
Number of the partial list:
Definition of the partial list of the SSL
SSL
SSL partial list
SSL-ID
VIPA SPEED7
SSL System status list
Overview SSL
HB00 | OPL_SP7 | Operation list | en | 18-30 932
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