ST_PMA_Scaling_InitPars

Function block-specific structure with initialization parameters which are evaluated when the function block FB_PMA_Scaling is initialized.

Syntax

Definition:

TYPE ST_PMA_Scaling_InitPars :
STRUCT
    nOversamples              : UDINT := 10;      // Oversampling factor
    nResolutionVoltage        : UDINT := (1..32); // in bit
    fMaxVoltage               : LREAL;            // Max input amplitude
    fOffsetVoltage            : LREAL := 0;       // Output = (input * gain) + offset
    fGainVoltage              : LREAL := 1;       //  ||
    nResolutionCurrent        : UDINT := (1..32); // in bit
    fMaxCurrent               : LREAL;            // Max input amplitude
    fOffsetCurrent            : LREAL := 0;       // Output = (input * gain) + offset
    fGainCurrent              : LREAL := 1;       //  ||
    fFactorCurrentTransformer : LREAL := 1;       // Factor of current transformer (input / output)
END_STRUCT
END_TYPE

Parameter

Name	Type	Parameter
nOversamples	UDINT	Oversampling factor
nResolutionVoltage	UDINT	Resolution of the voltage in bits. Range of values: 0-32
fMaxVoltage	LREAL	Indicated the maximum amplitude of the input voltage.
fOffsetVoltage	LREAL	Indicates a user-defined offset for the voltage scaling.
fGainVoltage	UDINT	Indicates a user-defined gain factor for the voltage scaling.
nResolutionCurrent	LREAL	Resolution of the current in bits. Range of values: 0-32
fMaxCurrent	LREAL	Indicates the maximum amplitude of the input current.
fOffsetCurrent	LREAL	Indicates a user-defined offset for the current scaling.
fGainCurrent	LREAL	Specifies a user-defined gain factor for the current scaling.
fFactorCurrentTransformer	LREAL	Current transformer factor. This is calculated from the input current and output current.

Requirements

Development environment	Target platform	PLC libraries to include
TwinCAT v3.1.4024.0	PC or CX (x86, x64)	Tc3_PowerMonitoring