FB_BA_ShortLongPress
The function block FB_BA_ShortLongPress is used to differentiate between short and long button presses. In contrast to the function block FB_BA_ShortLongClick, the bLongPress output remains set as long as the bSwi input is TRUE when the long button press is detected.
When a short button press is detected (the bSwi input is not set for longer than nSwiOvrTi [ms]), the bShortClick output is issued for one PLC cycle.
This function block is therefore suitable for switching and dimming processes.
Syntax
FUNCTION_BLOCK FB_BA_ShortLongPress
VAR_INPUT
bSwi : BOOL;
nSwiOvrTi : UDINT := 500;
END_VAR
VAR_OUTPUT
bShortClick : BOOL;
bLongPress : BOOL;
END_VAR
Inputs
Name | Type | Description |
|---|---|---|
bSwi | BOOL | Input signal. |
nSwiOvrTi | UDINT | Time duration in milliseconds after which the input signal is interpreted as a long button press. Preset to 500 ms |
Outputs
Name | Type | Description |
|---|---|---|
bShortClick | BOOL | Signals a short button press for a PLC cycle. |
bLongPress | BOOL | Signals a long button press that is held as long as bSwi is pressed. |
Requirements
Development environment | Required PLC library |
|---|---|
TwinCAT from v3.1.4024.62 | Tc3_BA2 from v5.5.25.0 |