Dword_To_Word(_E) - Mitsubishi Electric MELSEC FX Series Structured Programming Manual

FXCPU Structured Programming Manual
(Application Functions)

5.1.33 DWORD_TO_WORD(_E)

Outline
This function converts double word [unsigned]/bit string[32-bit] data into word [unsigned]/bit string [16-bit]
data, and outputs the data obtained by conversion.
1. Format
Function name
DWORD_TO_WO
RD
DWORD_TO_WO
RD_E
*1. Output variable
2. Set data
Variable
EN
Input
variable
_DWORD (
ENO
Output
variable
*1
In explanation of functions, I/O variables inside ( ) are described.
Explanation of function and operation
This function converts double word [unsigned]/bit string [32-bit] data stored in a device specified in
word [unsigned]/bit string [16-bit] data, and outputs the data obtained by conversion to a device specified in
.
d
Double word [unsigned]/
bit string [32-bit] data
1
12345678H
0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0
5678H
The information stored in high-order 16 bits is discarded.
Cautions
1) Use the function having "_E" in its name to connect a bus.
2) When handling 32-bit data in structured programs, you cannot specify 16-bit devices directly, different
from simple projects. Use labels when handling 32-bit data.
You can specify 32-bit counters directly, however, because they are 32-bit devices.
Use global labels when specifying labels.
FX 3U(C)
Expression in each language
Structured ladder
DWORD_TO_WORD
Label _DWORD
X000 DWORD_TO_WORD_E
EN
Label _DWORD
Execution condition
Conversion source double word [unsigned]/bit string [32-bit] data
)
s
Execution status
Word [unsigned]/bit string [16-bit] data after conversion
( )
d
12345678H
2 3 4
FX 3G FX 2N(C) FX 1N(C)
DWORD_TO_WORD(_DWORD);
Example:
D10:=
*1 D10
DWORD_TO_WORD(Label);
DWORD_TO_WORD_E(EN,
_DWORD, Output label);
Example:
ENO
DWORD_TO_WORD_E(X000,
*1 D10
Label, D10);
Description
5678H
Word [unsigned]/
bit string [16-bit] data
5 6 7
0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0
0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0
5 Applied Functions
5.1 Type Conversion Functions
FX 1S FX U /FX 2C FX 0N
ST
Data type
Bit
Double Word [unsigned]
/Bit string [32-bit]
Bit
Word [unsigned]/
Bit String [16-bit]
8
1
FX 0(S)
2
3
4
5
6
into
s
A
101