Vector VEC-VA Series, Programming Manual

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VA Motion Controller Programming Manual
223
10.4.6 LIMIT_STRING (set string limit)
IL programming language LD, FBD programming language
Function: The LIMIT_STRING instruction is used to limit the range of characters or strings
entered by the upper and lower limits.
LD IN1
LIMIT_ STRING IN, IN2
ST OUT
ST
programming language
OUT:=LIMIT_ STRING ( IN1 , IN, IN2 )
Note : IL, ST language programming needs to insert variables IN1, IN, IN2 and OUT or use
constants in the current
POU
variable worksheet

LIMIT_STRING
instruction processing data types
Input and
output
type of
data
description
IN1 ( MN ) STRING
Lower limit of characters
IN STRING Enter a character or string
IN2
(
MX
)
STRING Upper limit of characters
OUT STRING Output, the upper and lower limits of the input value will
be equal to the upper and lower limits respectively ; the size of
the characters will be judgeDAccording to the size of
the
ASCII code value ; when the string is input, only the first
character participates in the comparison, that is, if When a
character is in the upper and lower limits, the string is all
output, otherwise only the upper or lower limit is output.

Funtion and Action examples
Qualified string output description
When
the
contact
C 194
is
O N
, executing
the instruction, when the
address
V 397
string length in the
address V 396 , V 398 is between
the output itself, whether those
output upper and lower limits.
Execution
result:
shenzhen-shen