Omron CX-PROGRAMMER V8.1, Operation Manual

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154
Statement Descriptions
Section 5-5
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Examples
Example 1: If variable A is 1, variable X is substituted with numerical value 1.
If variable A is 2, variable X is substituted with numerical value 2. If variable A
is 3, variable X is substituted with numerical value 3. If neither of these cases
matches, variable Y will be substituted with 0.
CASE A OF
1:X:=1;
2:X:=2;
3:X:=3;
ELSE Y:=0;
END_CASE;
Example 2: If variable A is 1, variable X is substituted with numerical value 1.
If variable A is 2 or 5, variable X is substituted with numerical value 2. If vari-
able A is a value between 6 and 10, variable X is substituted with numerical
value 3. If variable A is 11, 12, or a value between 15 and 20, variable X is
substituted with numerical value 4. If neither of these cases matches, variable
Y will be substituted with 0.
CASE A OF
1:X:=1;
2,5:X:=2;
6..10:X:=3;
11,12,15..20:X:=4;
ELSE Y:=0;
END_CASE;
FOR Statement
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Summary
This statement is used to execute a specified expression repeatedly until a
variable (referred to here as an iteration variable) reaches a specified value.
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Reserved Words
FOR, TO, (BY), DO, END_FOR
Note BY can be omitted.
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Statement Syntax
FOR
< iteration_variable >
:=
< initial_value >
TO
< final_value_equation >
BY
< increment_value_equation >
DO
< expression >
;
END_FOR;