Short summary

Name	`TO_LITTLE_ENDIAN`
→POU type	→function
Category	IEC-block, Convert
Conform to →IEC-standard	currently restricted (IEC additionally demands the `WCHAR`, array and structure data types for the input and the return value. Currently, these data types are not supported for the block.) and more possible than defined in IEC-standard (IEC demands `ANY_INT` , `ANY_BIT`, `ANY_REAL`, `WCHAR`, `TIME`, array and structure data types for the input and the return value . Hence, IEC does not demand the data types `DATE_AND_TIME`, `TIME_OF_DAY` and `DATE`, but they are supported in logi.CAD 3.)
Graphical interface
Available since	version 1.35.0 (for logi.CAD 3)

Functionality

The block converts a value (entered at input IN and existing in the appropriate →endian format of the target system) into the little-endian format .

Special case: The conversion result for the data types TIME, DATE, TIME_OF_DAY and DATE_AND_TIME depends on the timer frequency of the target system

(see under "Properties and restrictions specific to the target system")
. Therefore, different values might be returned on different target systems.

Inputs, return value

	Identifier	→Data type	Description
Inputs:	`IN`	`REAL`, `LREAL`, `USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT`, `LINT`, `TIME`, `BOOL`, `BYTE`, `WORD`, `DWORD`, `LWORD`, `DATE_AND_TIME`, `DATE` or `TIME_OF_DAY`	input value
Return value:	–	`REAL`, `LREAL`, `USINT`, `UINT`, `UDINT`, `ULINT`, `SINT`, `INT`, `DINT`, `LINT`, `TIME`, `BOOL`, `BYTE`, `WORD`, `DWORD`, `LWORD`, `DATE_AND_TIME`, `DATE` or `TIME_OF_DAY`

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: INT;
		result2: DINT;
		result3: LWORD;
	END_VAR
	result1 := TO_LITTLE_ENDIAN(IN := INT#16#1234);                 (* The variable 'result1' evaluates to 'INT#16#1234' (decimal: 4_660). *)
	result2 := TO_LITTLE_ENDIAN(IN := DINT#16#12345678);            (* The variable 'result2' evaluates to 'DINT#16#12345678' (decimal: 305_419_896). *)
	result3 := TO_LITTLE_ENDIAN(IN := LWORD#16#1234567890ABCDEF);   (* The variable 'result3' evaluates to 'LWORD#16#1234567890ABCDEF' (decimal: 1_311_768_467_294_899_695). *)
END_PROGRAM

When creating your application within the ST-editor, enter a call of a block by typing the text as requested by the syntax or use Content Assist.