The following table describes the start information of the OB 57 with default names of thevariables and its data types:Variable Data type DescriptionOB57_EV_CLASS BYTE Event class and identifiers:11h: incoming eventOB57_STRT_INF BYTE 57h: Start request for OB 57OB57_PRIORITY BYTE Configured priority class:Default value: 2OB57_OB_NUMBR BYTE OB number (57)OB57_RESERVED_1 BYTE reservedOB57_IO_FLAG BYTE Input module: 54hOutput module: 55hOB57_MDL_ADDR WORD Logical base address of the module that triggers the inter-ruptOB57_LEN BYTE reservedOB57_TYPE BYTE reservedOB57_SLOT BYTE reservedOB57_SPEC BYTE reservedOB57_DATE_TIME DATE_AND_TIME Date and time of day when the OB was calledYou can obtain the full additional information on the interrupt from theframe by calling SFB 54 "RALRM" in OB 57.6.5 Time delay Interrupts6.5.1 OB 20, OB 21 - DEL_INTx - Time-delay InterruptA time-delay interrupt allows you to implement a delay timer independently of thestandard timers. The time-delay interrupts can be configured within the hardware configu-ration respectively controlled by means of system functions in your main program at runtime.For the activation no hardware configuration is necessary. The time-delay interrupt isstarted by calling SFC 32 SRT_DINT and by transferring the corresponding OB to theCPU. Here the function needs OB number, delay time and a sign. When the delay intervalhas expired, the respective OB is called by the operating system. The time-delay interruptthat is just not activated can be cancelled with SFC 33 CAN_DINT respectively by meansof the SFC 34 QRY_DINT the status can be queried. It can be blocked with SFC 39DIS_IRT and released with SFC 40 EN_IRT. The priority of the corresponding OBs arechanged via the hardware configuration. For this open the selected CPU with Edit >Object properties > Interrupts. Here the corresponding priority can be adjusted.Local dataDescriptionActivationVIPA SPEED7 Organization BlocksTime delay Interrupts > OB 20, OB 21 - DEL_INTx - Time-delay InterruptHB00 | OPL_SP7 | Operation list | en | 18-30 77
