Vector VEC-VA Series User Manual

VA Motion Controller Programming Manual
46
select
IF
IF a<b THEN
c:=1;
ELSIF a=b
THEN c:=2;
ELSE c:=3;
END_IF:
When the expression
'
a<b
' after
IF
is
TRUE
, execute a
statement after
THEN
( with a semicolon
as the boundary ) , otherwise the
statement after
THEN is
not executed ,
and continue to judge
ELSIF
or
ELSE
.
CASE
CASE f OF
1:a:=3;
2: a:=4;
3: a:=2;
ELSE
a:=0;
END_CASE;
According to CASE value of the
expression after the keyword, a group of
statements. The variable or expression
' f ' must be an INT data type.
cycle
FOR
FOR a:=1 TO
10 BY 3 DO
f[a] :=b;
END_FOR;
The variable ' a ' starts at 1 , and the
statements of FOR and END_FOR are
executed repeatedly . For
each execution, a increases
by 3 and ends with 10 . All values  
must have an ANY_INT data type.
WHILE
WHILE b>1
DO
b:=b/2;
END_WHILE;
When the value of the
expression
`b>1
' is
TRUE
, the statements
of
WHILE
and
END_WHILE
are executed
repeatedly until the value
of '
b>1 '
is
FALSE
.
REPEAT
REPEAT
a:=a*b;
UNTIL
a <10000
END_REPEAT;
The statements
of
REPEAT
and
END_REPEAT
are executed
repeatedly until the value of the
expression '
a<10000
' is
TRUE
.
End of cycle
EXIT
FOR a:=1 TO
2 DO
IF flag THEN
EXIT;
END IF
SUM:=
SUM+a
END_FOR
An exit statement can be used to
abort the execution of a loop statement.
End of
statement
;
Putting it after the statement
indicates the end of the statement, or it
can exist separately.
ST
language common keywords

Vector VEC-VA Series Specifications

General

Brand	Vector
Model	VEC-VA Series
Category	Controller
Language	English