5238-E P-302
SECTION 12 USER TASK
5-3.
Types/Operation Rules of Variables and Evaluation of Their Values
5-3-1. Variable type and evaluation
When setting a variable, an assignment statement is used:
Example:
V = e
where,
V = variable name
e = constant, variable name, expression, and function
With this setting, the value of "e" is evaluated, and the value of "V" is changed according to the rule.
Abbreviations:
LE33013R0301400460001
Variable Name of V
Unit System
Type of "e"
Evaluation of Value
System variables
1 mm
1/10000 inch
[I]
Not changed
[R]
[R]
→
[I]
(inch system value is converted
into metric system value)
(rounding of fractions)
mm inch
[I]
[I] * 1000 (metric system)
[I] * 10000 (inch system)
[R]
[R] * 100
→
(metric system)
(rounding off fractions)
[R] * 10000
→
(inch system)
(rounding off fractions)
Common variables
-
[I]
[I]
→
[R]
[R]
Not changed
Local variables
-
[I]
[I]
→
[R]
[R]
Not changed
Extended address
character
-
[I]
[I]
→
[R]
[R]
Not changed
I/O variable
-
[I]
Not changed
[R]
[R]
→
[I] (rounding off fractions)
[I]
⋅⋅⋅⋅⋅⋅⋅⋅⋅
Integer type
[R]
⋅⋅⋅⋅⋅⋅⋅⋅⋅
Real type
[I] [R]
⋅⋅⋅⋅⋅⋅⋅⋅⋅
Change to real type
[R]
[I]
⋅⋅⋅⋅⋅⋅⋅⋅⋅
Change to integer type
