Vector VEC-VA Series, Programming Manual

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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