FB_xL3403_TcPfw()

This function block processes the data (voltage, line) determined by an xL3403 and makes it available to the application.

	The FB_PowerMeasurement_TcPfw() function block should be called by the application. This function block calls FB_xL3403_TcPfw() internally.

Syntax

VAR_INPUT
    I_ratio     : LREAL:=1.0;
    CycleTime   : LREAL:=0.025;
    ReadVoltage : BOOL:=FALSE;
    Using_EL    : BOOL:=FALSE;
END_VAR
VAR_IN_OUT
    Input       : ST_TcPfw_xL3403_Input;
    Output      : ST_TcPfw_xL3403_Output;
    State       : ST_TcPfw_xL3403_State;
END_VAR

Inputs

Name	Type	Description
I_ratio	LREAL	The ratio of the current transformers must be entered here.
CycleTime	LREAL	Cycle time with which this function block is called.
ReadVoltage	BOOL	A TRUE causes the currently measured voltage to be read out instead of the power.
Using_EL	BOOL	A TRUE tells the function block that it is an EL terminal.

Inputs/outputs

Name	Type	Description
Input	ST_TcPfw_xL3403_Input	Provides the input data of the terminal.
Output	ST_TcPfw_xL3403_Output	Provides the output data of the terminal.
State	ST_TcPfw_xL3403_State	Returns the state of the terminal and the processed data to the application.

Behavior of the function block:

If the terminal does not report an error, the prepared input data are provided in each cycle.

	When measuring power with the EL3403, the increased filter time must also be taken into account.