Vector VEC-VA Series User Manual

VA Motion Controller Programming Manual
154
Function: The
LT
instruction is used to compare the size of two values. When the first input is
less than the second, the output is
1
and the others are
0.
LD IN1
LT IN2
ST OUT
ST
programming
language
OUT:=IN1<IN2
Note : IL, ST language programming needs to insert variables IN1, IN2 and OUT or use
constants in the current POU variable worksheet
Data type processed by
LT
instruction
Input and
output
Operand type
description
IN1
ANY
First input
IN2
ANY
Second input
OU T
BOOL
Result :
When
IN1 < IN2
,
OUT
is
1;
When
IN1 >= IN2
,
OUT
is
0;
Funtion and Action examples
Comparative V491 ( 10.0 )
and V492 ( 100.0 ) of the value
description
When the contact is ON when the instruction
is executed, when the address V491 is a
value smaller than V492 the value , the
address V493 the output 1
Execution result: 10.0< 100.0 =
V493 output 1
10.1.23 MAX (Maximum Instruction )
IL programming
language
LD, FBD programming language
Function: The
MAX
instruction is used to determine the maximum value of two values.
LD IN1
MAX IN2
ST OUT
ST
programming
language

Vector VEC-VA Series Specifications

General

Brand	Vector
Model	VEC-VA Series
Category	Controller
Language	English