Event Counting Mode Principle Description
The Event Counting mode allows you to count the number of events that occur during a given period of time.
The counter assesses the number of pulses applied to the input for a predefined period of time. At the end of each period, the counting register is updated with the number of events received.
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.
|
Stage |
Action |
|---|---|
|
1 |
When Enable condition = 1, 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 relevant. |
|
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 1. The counting restarts for a new period of time. |
|
3 |
On the rising edge of the Sync condition: othe accumulated 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 0: the current counting is aborted and CurrentValue is maintained at the previous valid value.
oSet to 1: the accumulated value is reset to 0, the CurrentValue remains unchanged, and the counting restarts for a new period of time.
