FB_BA_SingleDoubleClick
The function block FB_BA_SingleDoubleClick is used to distinguish between a single and double button press.
If the input signal bSwi is switched to TRUE twice within the time nSwiOvrTi [ms], the output bDoubleClick is set for one PLC cycle. Otherwise, the bSingleClick output is set for one PLC cycle.
Syntax
FUNCTION_BLOCK FB_BA_ShortLongClick
VAR_INPUT
bSwi : BOOL;
nSwiOvrTi : UDINT := 500;
END_VAR
VAR_OUTPUT
bSingleClick : BOOL;
bDoubleClick : BOOL;
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
bSwi | BOOL | Input signal. |
nSwiOvrTi | UDINT | Time duration in milliseconds within which two consecutive edges at the input bSwi are interpreted as a double button press. Preset to 500 ms |
Outputs
Name | Type | Description |
|---|---|---|
bSingleClick | BOOL | Signals a single button press. |
bDoubleClick | BOOL | Signals a double button press. |
Requirements
Development environment | Required PLC library |
|---|---|
TwinCAT from v3.1.4024.62 | Tc3_BA2 from v5.5.25.0 |