5.6.7 Diagnostics and interrupt
GSDML
n Edge at an digital interrupt input
Via the hardware configuration you can define the following trigger for a hardware inter-
rupt that can trigger a diagnostics interrupt:
n Reaching the comparison value
n Overflow respectively at overrun upper counter limit
n Underflow respectively at underrun lower counter limit
n Opening the HW gate with open SW gate - except for counter 3
n Closing the HW gate with open SW gate - except for counter 3
5.7 Frequency measurement
5.7.1
Properties
n 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 configurable
n Control by the user program via
SFB 48
More information about the usage of this block may be found in the
manual "SPEED7 Operation List" from VIP
A.
1 Integration time
2 Counting pulse
3 SW gate
4 Frequency measurement start
5 Frequency measurement stop
n The measurement is carried out during the integration time and is updated after the
integration time has expired.
n If the period of the measured frequency exceeds the assigned integration time, this
means there was no edge 0-1 during the measurement, the measurement value 0 is
returned.
n The calculated frequency value is supplied in "mHz" units.
n The measurement value can be read with MEAS_V
AL from SFB 48.
n The number of activated channels does not influence the max. frequency, which is
defined in the technical data.
Overview
Measuring procedure
VIPA System MICRO
Deployment I/O periphery
Frequency measurement > Properties
HB400 | CPU | M13-CCF0000 | en | 16-47 117
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