MC_FunctionGeneratorFD_BkPlcMc (from V3.0.31)
The function block calculates the signals of a function generator.
Inputs/outputs
VAR_INOUT
stTimeBase: ST_FunctionGeneratorTB_BkPlcMc;
stFunctionDef: ST_FunctionGeneratorFD_BkPlcMc;
END_VAR
Name | Type | Description |
|---|---|---|
stTimeBase | ST_FunctionGeneratorTB_BkPlcMc | stTimeBase: A structure with the parameters of the time base of this function generator. |
stFunctionDef | ST_FunctionGeneratorFD_BkPlcMc | stFunctionDef: A structure with the definitions of the output signals of a function generator. |
Outputs
VAR_OUTPUT
Sinus: LREAL;
Cosinus: LREAL;
Rectangle: LREAL;
SawTooth: LREAL;
END_VAR
Name | Type | Description |
|---|---|---|
Sine | LREAL | The output signals of the function generator. |
Cosine | LREAL | |
Rectangle | LREAL | |
SawTooth | LREAL |
Behavior of the function block
The output signals are determined from stTimeBase.CurrentRatio and the parameters in stFunctionDef.
The time base in stTimeBase should be updated with an MC_FunctionGeneratorTB_BkPlcMc() function block.
To change the operating frequency, an MC_FunctionGeneratorSetFrq_BkPlcMc() function block should be used.