Vector VEC-VA Series, Programming Manual

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VA Motion Controller Programming Manual
151
IN2 ANY Second input
OUT BOOL result
When
IN1<=IN2 , OUT is 1
When IN1>IN2 , OUT is 0;

program demonstration
Compare
V480
and
V481
in value
description
When the contact
C300 is ON , the
instruction is executed;
When the address V480 is smaller than the
address V481 the value , V482 output is 1 :
When the address V480 is a value greater
than equal to the
address
V481
the value ,
V482
output is
0
:
Execution result: 1.0<5.0 output 1
10.1.19 LIMIT (limit selection instruction )
IL programming language LD, FBD programming language
Function: The LIMIT instruction is used to limit the input value to the interval determined
by the maximum and minimum values.
LD IN1
LIMIT IN
, IN2
ST OUT
ST
programming language
OUT:= LIMIT ( IN1 , IN,
IN2
)
Note : IL, ST language programming needs to insert variables IN, IN1, IN2 and OUT or use
constants in the current POU variable worksheet

LIMIT instruction processing data type
Input and
output
Operand type description
IN1 ANY_INT Minimum value
IN ANY_INT input value
IN2 ANY_INT Maximum
OUT ANY output value
When
IN1 <=
(
the
IN ) <= IN2 when , OUT = the IN;
When IN<IN1 , OUT=IN1;
When IN>IN2 , OUT=IN2;