Logical base address for the module14.1.8 SFC 6 - RD_SINFO - Read start informationThe SFC 6 RD_SINFO (read start information) retrieves the start information of the lastOB accessed and that has not yet been processed completely, as well as the last startupOB. These start information items do not contain a time stamp. Two identical start infor-mation items will be returned when the call is issued from OB 100.Parameter Declaration Data type Memory block DescriptionRET_VAL OUTPUT INT I, Q, M, D, L The return value contains an error code ifan error is detected when the function isbeing processed.TOP_SI OUTPUT STRUCT D, L Start information of the current OBSTART_UP_SI OUTPUT STRUCT D, L Start information of the last OB that wasstartedThis refers to two identical structures as shown below.Structure element Data type DescriptionEV_CLASS BYTE Bits 3 ... 0: event identifierBits 7 ... 4: event class1: Start events of standard-OBs2: Start events of synchronous-error OBs3: Start events of asynchronous-error OBsEV_NUM BYTE event numberPRIORITY BYTE Structure element PRORITY shows the priority class of the cur-rent OB.NUM BYTE Structure element NUM contains the number of the current OB orof the last OB startedTYP2_3 BYTE Data identifier 2_3: identifies the information entered into ZI2_3TYP1 BYTE Data identifier 1: identifies the information entered into ZI1ZI1 WORD Additional information 1ZI2_3 DWORD Additional information 2_3The content of the structure elements shown in the table above corre-sponds exactly with the temporary variables of an OB. It must be remem-bered, however, that the name and the data type of the temporary varia-bles in the different OBs might differ. Furthermore, the call interface of theOBs also contains the date and time at which call to the OB wasrequested.LADDRDescriptionParametersTOP_SI and START_UP_SIVIPA SPEED7Integrated StandardSystem Functions > SFC 6 - RD_SINFO - Read start informationHB00 | OPL_SP7 | Operation list | en | 18-30650
