WORD_TO_DWORD

The WORD_TO_DWORD block converts a WORD value to DWORD.

Ladder Representation

Variable Type	Name	Data Type	Description
VAR_INPUT	EN	BOOL	Block enable.
VAR_INPUT	Value	WORD / UINT / INT	WORD value.
VAR_OUTPUT	ENO	BOOL	End of operation.
VAR_OUTPUT	Result	DWORD / UDINT / DINT	DWORD value.

When EN is TRUE, the block interprets Value as a WORD value, converts it to DWORD, and stores the result in Result.

When EN is FALSE, Result remains unchanged.

The ENO output passes the EN state to the next Ladder block after the operation is finished.

WORD_TO_DWORD execution flowchart

The Ladder examples convert VALUE from WORD to DWORD, store the final value in RESULT, and activate ENO when the block finishes successfully.

WORD_TO_DWORD Ladder example

WORD_TO_DWORD Ladder example result

The following Structured Text code applies the same logic shown in the Ladder example.

Structured Text
VAR
    VALUE : INT := 562;
    RESULT : DINT;
END_VAR

RESULT := FB_WORD_TO_DWORD(EN:=DI1, Value:=VALUE, ENO=>DO1);