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BYTE_TO_DWORD

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Block that performs the conversion of a BYTE value into a DWORD value.

 

Ladder Representation

 

BYTE_TO_DWORD_block

 

Block Structure

 

Variable Type

Name

Data Type

Description

VAR_INPUT

EN

BOOL

Block enabling

Value

BYTE USINT SINT

Value in BYTE

VAR_OUTPUT

ENO

BOOL

End of operation

Result

DWORD UDINT DINT

Value in DWORD

 

Operation

 

When this block has a TRUE value in EN, it interprets the Value value as BYTE and converts it into DWORD, 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

 

BYTE_TO_DWORD_flowchart

 

Example in Ladder

 

BYTE_TO_DWORD_example01

 

The examples above perform the conversion of variable VALUE, in BYTE, 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

   VALUE : SINT := 100;

   RESULT : DINT;

END_VAR

 

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