Enable: Authorize Counting Operation
The enable function is used to authorize the counting operation.
The enable function is available in the following HSC modes:
oHSC Main Single Phase (One-shot)
oHSC Main Single Phase (Modulo Loop)
oHSC Main Dual Phase (Modulo Loop)
oHSC Main Dual Phase (Free Large)
oFrequency Meter
oPeriod Meter
It is not available in Event Counting mode.
This function is used to authorize changes to the counter value depending on the status of the optional EN physical input and the function block inputs F_Enable and EN_Enable.
The following diagram illustrates the enable conditions:
EN_Enable input of the HSC function block
F_Enable input of the HSC function block
EN physical input Enable
As long as the function is not enabled, the counting pulses are ignored.
NOTE: Enable condition for a Simple type corresponds to the function block input Enable.
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Step |
Action |
|---|---|
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1 |
In the Devices tree, double-click MyController > IO_Bus > Module_x > Counters. |
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2 |
Select the Counters tab. |
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3 |
Select a Counting function that supports the Enable function: oHSC Main Single Phase (One-shot or Modulo-loop) oHSC Main Dual Phase (Modulo-loop or Free-large) oFrequency Meter oPeriod Meter |
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4 |
Set the value of the Control inputs > EN input > Location parameter. |
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5 |
Select the value of the Control inputs > EN input > Filter parameter to reduce the bounce effect on the input. The filtering value determines the counter maximum frequency as shown in the Bounce Filter table. |
