5.6.7 Diagnostics and interruptGSDMLn Edge at an digital interrupt inputVia the hardware configuration you can define the following trigger for a hardware inter-rupt that can trigger a diagnostics interrupt:n Reaching the comparison valuen Overflow respectively at overrun upper counter limitn Underflow respectively at underrun lower counter limitn Opening the HW gate with open SW gate - except for counter 3n Closing the HW gate with open SW gate - except for counter 35.7 Frequency measurement5.7.1 Propertiesn In this operating mode the CPU counts the incoming pulses during a specified inte-gration time and outputs them as frequency value.n Integration time 10ms ... 10000ms in steps of 1ms configurablen Control by the user program via SFB 48More information about the usage of this block may be found in themanual "SPEED7 Operation List" from VIPA.1 Integration time2 Counting pulse3 SW gate4 Frequency measurement start5 Frequency measurement stopn The measurement is carried out during the integration time and is updated after theintegration time has expired.n If the period of the measured frequency exceeds the assigned integration time, thismeans there was no edge 0-1 during the measurement, the measurement value 0 isreturned.n The calculated frequency value is supplied in "mHz" units.n The measurement value can be read with MEAS_VAL from SFB 48.n As long as the SW gate is open, you can request the calculated frequency.n The number of activated channels does not influence the max. frequency, which isdefined in the technical data.OverviewMeasuring procedureVIPA System SLIODeployment I/O peripheryFrequency measurement > PropertiesHB300 | CPU | 013-CCF0R00 | en | 19-30148
