Dataq DI-159, User Manual

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StickOS DI-159 PLC Hardware Manual
Variable Assignments
Simple variables are assigned with the following statement:
let
variable = expression
If the variable represents an output "pin variable", the corresponding DI-159 PLC output pin is
immediately updated.
Similarly, array variable elements are assigned with the following statement:
let variable [ expression ] = expression
Where the first expression evaluates to an array index between 0 and the length of the array
minus one, and the second expression is assigned to the specified array element.
String variables are assigned with the following statement:
let variable $ = string
Multiple variables may be assigned in a single statement by separating them with commas:
let
var1 = expr1 , var2 = expr2 , ...
Examples
> 10 dim simple, array[4]
> 20 while simple<4 do
> 30 let array[simple] = simple*simple
> 40 let simple = 1
> 50 endwhile
> 60 for simple = 0 to 3
> 70 print array[simple]
> 80 next
> run
0
1
4
9
> new
> 10 dim a$[20]
> 20 let a$="hello"+" "+"world!"
> 30 print a$
> run
hello world!
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