Short summary

Name	`SEL_LREAL`
→POU type	→function
Category	IEC-block, Select
Conform to →IEC-standard	no restrictions
Graphical interface
Available since	version 1.21.0 (for logi.CAD 3) – initial variant version 2.0.4 (for library `Standard`) – changed location (from sub-library `SelectEnh` to `Select`)

Functionality

The block makes a binary selection – analogous to the SEL block. In contrast to that block, SEL_LREAL allows the connection with LREAL only (for IN0 and IN1).

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`G`	`BOOL`	selector
	`IN1`	`LREAL`	1st value
	`IN2`	`LREAL`	2nd value
Return value:	–	`LREAL`

Input EN and output ENO are available when →calling the block. See "Execution control: EN, ENO" for information on input EN and output ENO.

Example for usage within ST-editor

PROGRAM Test
    VAR
        result1 : LREAL;
        result2 : LREAL;
    END_VAR
    result1 := SEL_LREAL(G := FALSE, IN0 := LREAL#1.0, IN1 := LREAL#2.0);   (* The variable 'result1' evaluates to 'LREAL#1.0'. *)
    result2 := SEL_LREAL(G := TRUE, IN0 := LREAL#1.0, IN1 := LREAL#2.0);    (* The variable 'result2' evaluates to 'LREAL#2.0'. *)
END_PROGRAM

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