FC_GetVectorElement

FC_GetVectorElement - General Information

Overview

Type:	Function
Available as of:	V1.0.3.0
Versions:	Current version

Task

Read vector components.

Description

Returns the vector components that are located in line i_diRow of a vector. The pointer i_plrVectorStart must point to the start of the storage area in which the vector is stored. i_diRow starts at 0.

Interface

Input	Data type	Description
i_plrVectorStart	POINTER TO LREAL	Pointer to the start address of the vector to be processed
i_diRow	DINT	Line containing the vector element to be read

Output	Data type	Description
q_etDiag	GD.ET_Diag	General library-independent statement on the diagnostic. A value not equal to ET_Diag.Ok corresponds to an diagnostic message.
q_etDiagExt	ET_DiagExt	POU-specific output on the diagnostic. q_etDiag = ET_Diag.Ok -> Status message q_etDiag <> ET_Diag.Ok -> Diagnostic message

Output

Data type

Description

q_etDiag

GD.ET_Diag

General library-independent statement on the diagnostic.

A value not equal to ET_Diag.Ok corresponds to an diagnostic message.

q_etDiagExt

ET_DiagExt

POU-specific output on the diagnostic.

q_etDiag = ET_Diag.Ok -> Status message

q_etDiag <> ET_Diag.Ok -> Diagnostic message

Return Value

Data type	Description
LREAL	Value of the vector element which was to be read.

Diagnostic Messages

q_etDiag	q_etDiagExt	Enumeration value	Description
OK	Ok	0	Ok

Enumeration name:	Ok
Enumeration value:	0
Description:	Ok

The vector element has been read out successfully.