Delta Electronics DVP15MC11T, Руководство по эксплуатации

Страница: 239 / 601

DVP15MC11T Operation Manual
_8
8.12.4 Real numbers_TO_***
FB/FC
Explanation Applicable model
FC
Real numbers_TO_*** instructions convert real numbers into the data of
basic data types. “***” can be any basic data type.
DVP15MC11T

Parameters
Parameter
name
Meaning
Input/
Output
Description Valid range
In Data to convert Input Data to convert
Depends on the data type of the variable that
the input parameter is connected to.
Out Conversion result Output Conversion result
Depends on the data type of the variable that
the output parameter is connected to.
B
ool
ean
Bit string Integer
Real
number
Time, date
St
rin
g
B
O
O
L
BYT
E
WO
RD
D
WO
R
D
L
W
O
R
D
U
SI
N
T
U
IN
T
U
DI
NT
U
L
INT
SI
N
T
IN
T
D
IN
T
L
IN
T
R
EAL
L
R
EAL
T
IM
E
D
AT
E
TOD D
T
ST
R
IN
G
In
● ●
Out The data type of Out must be the same as “***” of the instruction name.
Note:
The symbol
●
indicates that the parameter is allowed to connect to the variable or constant of the data type.

Function Explanation

Real Number to BOOL

Relevant instructions:

The real numbers are converted into the Boolean data as the following table shows. If the real
number is 0, the conversion result is FALSE. If the real number is not 0, the conversion result is
TRUE. For details on the rule, see the table as follows.
Data type The value of In corresponds to the value of Out
In Out In Out
REAL BOOL
-3.38~-1.175495E-38 TRUE
0 FALSE
1.175495E-38~3.38 TRUE
LREAL BOOL
-1.79769313308~
-2.22507385850721E-308
TRUE
0 FALSE
2.22507385850721E-308~
1.79769313308
TRUE
Re al numbe rs _TO_* **
EN ENO
O ut In
REA L_TO_BO OL
EN ENO
O ut In
LREAL_TO_ BOO L
EN ENO
O ut In
8-168