The following conditions must be satisfied before a time-delay interrupt OB may becalled:n The time-delay interrupt OB must have been started(using the SFC 32).n The time-delay interrupt OB must not have been de-selected.n The time-delay interrupt OB must exist in the CPU.ParametersParameter Declaration Data type Memory block DescriptionOB_NR INPUT INT I, Q, M, D, L,constantNumber of the OB, that must be cancelled(OB 20, OB 21).RET_VAL OUTPUT INT I, Q, M, D, L The return value contains an error code if anerror is detected when the function is being pro-cessed.STATUS OUTPUT WORD I, Q, M, D, L Status of the time-delay interrupt.RET_VAL (Return value)Value Description0000h No error has occurred.8090h OB_NR parameter errorSTATUSBit Value Description0 0 The operating system has enabled the time-delay interrupt.1 0 New time-delay interrupts are not discarded.2 0 Time-delay interrupt has not been activated and has not expired.3 - -4 0 Time-delay interrupt-OB has not been loaded.5 0 An active test function disables execution of the time-delay interrupt-OB.14.1.26 SFC 36 - MSK_FLT - Mask synchronous errorsThe SFC 36 MSK_FLT (mask synchronous faults) is used to control the reaction of theCPU to synchronous faults by masking the respective synchronous faults.The call to the SFC 36 masks the synchronous faults of the current priority class. If youset individual bits of the synchronous fault mask in the input parameters to "1" other bitsthat have previously been set will remain at "1". This result in new synchronous faultmasks that can be retrieved via the output parameters. Masked synchronous faults areentered into an error register and do not issue a call to an OB. The error register is readby means of the SFC 38 READ_ERR.ConditionsDescriptionVIPA SPEED7Integrated StandardSystem Functions > SFC 36 - MSK_FLT - Mask synchronous errorsHB00 | OPL_SP7 | Operation list | en | 18-30676
