Event Counting Mode Principle Description
The Event Counting mode allows you to count a sequence of events during a given period of time.
The counter assesses the number of pulses applied to the input for a predefined period of time. The counting register is updated at the end of each period with the number of events received.
The synchronization can be used over the time period. This restarts the counting event for a new predefined time period. The counting restarts at the edge Sync condition
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Stage |
Action |
|---|---|
|
1 |
When Enable condition = TRUE, the counter accumulates the number of events (pulses) on the physical input during a predefined period of time. If Validity = 0, the current value is not used. |
|
2 |
Once the first period of time has elapsed, the counter value is set to the number of events counted over the period and Validity is set to TRUE. The counting restarts for a new period of time. |
|
3 |
On the rising edge of the Sync condition: othe accumulated input pulse value is reset to 0 othe current value is not updated othe counting restarts for a new period of time |
|
4 |
Once the period of time has elapsed, the counter value is set to the number of events counted over the period. The counting restarts for a new period of time. |
NOTE:
On the Main type, when the Enable condition is:
oSet to FALSE: the current counting is aborted and CurrentValue is maintained to the previous valid value.
oSet to TRUE: the accumulated value is reset to 0, the CurrentValue remains unchanged, and the counting restarts for a new period of time.
