Vector VEC-VA Series

VA Motion Controller Programming Manual
213
L
output
0~2,147,483,647
, input and
increase output
is
2,147,483,647;
input
-1~-2,147,483,648
,
output
4,294,967,295~2,147,483,648
,
input and then reduce output is
still
2,147,483,648;
accuracy will decrease
LREAL_TO_LREAL
LREA
L
REAL
Input equals output, accuracy is
reduced
usage (take LREAL_TO_BYTE as an example)
IL
programming language
LD, FBD
programming language
LD IN
LREAL_TO_BYTE
ST OUT
ST
programming language
OUT:=LREAL_TO_BYTE
(
IN
)
Note : IL, ST language programming needs to insert variables IN and OUT or use
constants in the current POU variable worksheet
Funtion and Action examples
Long floating point
number
10.0
rpm
BYTE
description
When the contact
C095
is
ON
, the execution of
the instruction, the address
of
V182
in the long floating-point number
10.0
revolut
ions of
BYTE
, stored in the
V183
in ;
Execution of results :
10.0
(
the LREAL
)
switch
16 # 0A
(
BYTE
)
10.3.17 TRUNC decimal rounding
Type conversion FU
Features
TRUNC
decimal rounding
The TRUNC
fraction has
four
instructions, which can convert
floating-point data to
SINT
,
INT
,
DINT,
and so on.
RUNC
decimal rounding instruction