17 SSL System status list17.1 Overview SSLThis chapter describes all the partial lists of the system status list, readable via SFC 51RDSYSST or via Hardware configurator. SSL partial lists, which are only for internalusage, are not described here.The SSL (system status list) describes the current statusof a automation system. It contains the following information:n System data– These are fixed or assigned characteristics data of a CPU as configuration of theCPU, 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, thismeans, they are only created by the operating system of the CPUs when specificallyrequested 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 toread.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 listn Record sets– A record set of a partial list has a certain length, depending on the information ofthe partial list. It depends on the partial list as the data words are used in a recordset.StructureSSL-IDHigh byte Low byteBit number 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Module class:CPU: 0000IM: 0100FM: 1000CP: 1100Number of the partial listextract:Definition of the subsetof the partial listNumber of the partial list:Definition of the partial list of the SSLSSLSSL partial listSSL-IDVIPA SPEED7SSL System status listOverview SSLHB00 | OPL_SP7 | Operation list | en | 18-30932
