Mitsubishi Electric 09R927, Руководство по структурному программированию

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5 Applied Functions
5.1 Type Conversion Functions
66
FXCPU Structured Programming Manual
(Application Functions)
5.1.16 DINT_TO_WORD(_E)
Outline
This function converts double word [signed] data into word [unsigned]/bit string [16-bit] data, and outputs the
data obtained by conversion.
1. Format
*1. Output variable
2. Set data
In explanation of functions, I/O variables inside ( ) are described.
Explanation of function and operation
This function converts double word [signed] data stored in a device specified in into word [unsigned]/bit
string [16-bit] data, and outputs the data obtained by conversion to a device specified in .
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)
FX
3G
FX
2N(C)
FX
1N(C)
FX
1S
FX
U
/FX
2C
FX
0N
FX
0(S)
Function name
Expression in each language
Structured ladder ST
DINT_TO_WORD
DINT_TO_WORD(_DINT);
Example:
D10:=
DINT_TO_WORD(Label);
DINT_TO_WORD
_E
DINT_TO_WORD_E(EN,_DINT,
Output label);
Example:
DINT_TO_WORD_E(X000, Label,
D10);
Variable Description Data type
Input
variable
EN Execution condition Bit
_DINT ( )
Conversion source double word [signed] data Double Word [signed]
Output
variable
ENO Execution status Bit
*1 ( )
Word [unsigned]/bit string [16-bit] data after conversion
Word [unsigned]/
Bit String [16-bit]
DINT_TO_WORD
_DINT *1 Label D10
DINT_TO_WORD_E
EN ENO
*1 D10
X000
Label _DINT
s
d
s
d
1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 0
12345678 614EH
Double word [signed] data
The information stored in high-order 16 bits is discarded.
Word [unsigned]/
bit string [16-bit] data
12345678
614E
0 0 0 0 0 0 0 0 0
1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0