FB_BA_LightingEvt
The function block FB_BA_LightingEvt is used to set the light value and the color temperature at any event. It can be used, for example, to switch the lights during the night watchman tour or for building cleaning.
If the function block is enabled via the input bEn, the active flag in the light control telegram (bActv in stLighting) is set at output stLighting. The values entered at the input variables fLgtVal for the light value [%] and fLgtT for the light temperature [K] are passed on in this telegram. If the function is no longer active by resetting bEn, the active flag in the light control telegram stLighting is reset and the values for brightness and color temperature are set to "0". With a telegram selection block (e.g. FB_BA_LightingTgmSel8) a function of lower priority can take over the control by resetting.
The priority (E_BA_LightingPrio) of the output telegram can be defined via the parameter ePrio (VAR_INPUT CONSTANT PERSISTENT). It is preset to eManualActuator.
Information about inherited elements
The function block inherits from the internal base class FB_BA_BaseLightingEvt, which contains a telegram counter for determining the last command sent.
Inputs
VAR_INPUT
bEn : BOOL;
fLgtVal : REAL;
fLgtT : REAL;
END_VAR
Name | Type | Description |
|---|---|---|
bEn | BOOL | A TRUE signal on this input activates the function block and transfers the entered setpoints together with the active flag in the light setting telegram ST_BA_Lighting. A FALSE signal resets the active flag again and sets the light value to zero. |
fLgtVal | REAL | Light value [%] |
fLgtT | REAL | Light temperature [K] |
Inputs CONSTANT PERSISTENT
VAR_INPUT CONSTANT PERSISTENT
ePrio : E_BA_LightingPrio := E_BA_LightingPrio.eScene1;
END_VAR
Name | Type | Description |
|---|---|---|
ePrio | E_BA_LightingPrio | Priority E_BA_LightingPrio of the telegram, preset to eScene1. |
Outputs
VAR_OUTPUT
stLighting : ST_BA_Lighting;
bActv : BOOL;
END_VAR
Name | Type | Description |
|---|---|---|
stLighting | ST_BA_Lighting | Light setting telegram |
bActv | BOOL | Active |
Requirements
Development environment | Required PLC library |
|---|---|
TwinCAT from v3.1.4024.22 | Tc3_BA2 from v5.2.5.0 |