Equipments (Devices) > SCA06 > Ladder > Conversion > DWORD > WORDS_TO

Block that performs the conversion of two 16 bits (WORD) values into a 32 bits (DWORD) value.

Ladder Representation

WORDS_TO_DWORD_block

Block Structure

Variable Type	Name	Data type	Description
VAR_INPUT	EN	BOOL	Block enabling
	Value1	WORD UINT INT	1st WORD (Less Significant Word)
	Value2	WORD UINT INT	2nd WORD (More Significant Word)
VAR_OUTPUT	ENO	BOOL	End of operation
VAR_OUTPUT	Result	DWORD UDINT DINT	Value in DWORD

Operation

When this block has a TRUE value in EN, it interprets the Value1 and Value2 values as WORD and converts it into a DWORD variable, storing in Result.

When EN has FALSE value, Result remains unchanged.

The ENO value forwards to the next Ladder block the EN value after the operation is completed.

Block Flowchart

WORDS_TO_DWORD_flowchart

Example in Ladder

WORDS_TO_DWORD_example01

WORDS_TO_DWORD_example02

The examples above perform the conversion of two variable VALUE1 and VALUE2, in WORD, into a DWORD value storing the final result in RESULT. The block ends with success and ENO output is activated.

Example in ST

The example below displays the instructions for applying the example above in the ST language.

VAR

VAL1 : INT := 4;

VAL2 : INT := 1;

RESULT : DINT;

END_VAR

RESULT := FB_WORDS_TO_DWORD(

EN:=DI1,

Value1:=VAL1,

Value2:=VAL2,

ENO=>DO1);