Local double word 8 of OB 40 at frequency measurementLocal byte Bit 7...08 n Bit 0: End of measurement channel 0 (end of the integration time)n Bit 7 ... 1: 0 (fix)9 n Bit 0: End of measurement channel 1 (end of the integration time)n Bit 7 ... 1: 0 (fix)10 n Bit 0: End of measurement channel 2 (end of the integration time)n Bit 7 ... 1: 0 (fix)11 n Bit 0: End of measurement channel 3 (end of the integration time)n Bit 7 ... 1: 0 (fix)5.10.3 Diagnostic interruptAn interrupt for the corresponding channel operating mode can only betriggered if you have additionally parameterized ‘Diagnostics+Process’ at‘Select interrupt’ of the ‘Basic parameters’ .Via the parameterization (record set 7Fh) you may activate a global diagnostic interruptfor the module. A diagnostic interrupt occurs when during a process interrupt execution inOB 40 another process interrupt is thrown for the same event. The initialization of a diag-nostic interrupt interrupts the recent process interrupt execution in OB 40 and branches inOB 82 to diagnostic interrupt processingincoming. If during the diagnostic interrupt pro-cessing other events are occurring at other channels that may also cause a process res.diagnostic interrupt, these are interim stored. After the end of the diagnostic interrupt pro-cessing at first all interim stored diagnostic interrupts are processed in the sequence oftheir occurrence and then all process interrupts. If a channel where currently a diagnosticinterruptincoming is processed res. interim stored initializes further process interrupts, theseget lost. When a process interrupt for which a diagnostic interruptincoming has beenreleased is ready, the diagnostic interrupt processing is called again as diagnostic inter-ruptoutgoing. All events of a channel between diagnostic interruptincoming and diagnostic inter-ruptoutgoing are not stored and get lost. Within this time window (1. diagnostic inter-ruptincoming until last diagnostic interruptoutgoing) the SF-LED of the CPU is on. Additionallyfor every diagnostic interruptincoming/outgoing an entry in the diagnostic buffer of the CPUoccurs.FunctionVIPA System SLIO Deployment I/O peripheryDiagnostic and interrupt > Diagnostic interruptHB300 | CPU | 013-CCF0R00 | en | 19-30 163
