FB_RandomGenerator - GetDint (Method)

Overview

Task

Creation of a random number

Description

Generates a random number of the DINT type according to the linear congruential method. See FB_RandomGenerator

Interface

Input	Data type	Description
i_diXmin	DINT	Lowest possible value of the random number
i_diXmax	DINT	Highest possible value of the random number

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

General library-independent statement on the diagnostic.

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

q_etDiagExt

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
DINT	Generated random number

Diagnostic Messages

q_etDiag	q_etDiagExt	Enumeration value	Description
OK	Ok	0	Ok
ExecutionAborted	InitMethodNotCalled	93	The Init method has not been called up.

InitMethodNotCalled

Enumeration name:	InitMethodNotCalled
Enumeration value:	93
Description:	The Init method has not been called up.

Issue	Cause	Solution
-	The Init method has not been called up yet.	Before calling up the GetDint method for the first time, the Init method must be called up.

The random value has been calculated successfully.