Dataq DI-159, User Manual

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StickOS DI-159 PLC Hardware Manual
Read/Data Statements
A program can declare read-only data in its code statements, and then consume the data at run-
time.
To declare the read-only data, use the data statement as many times as needed:
data n
data n , n , ...
To consume data values and assign them to variables at runtime, use the read statement:
read variable
read variable , variable , ...
If a read is attempted when no more data exists, the program stops with an "out of data" error.
A line may be labeled and the current data consumer pointer may be moved to a specific
(labeled) line with the statements:
label label
restore
label
Examples
> 10 dim a, b
> 20 data 1, 2, 3
> 30 data 4
> 40 data 5, 6
> 50 data 7
> 60 while 1 do
> 70 read a, b
> 80 print a, b
> 90 endwhile
> 100 data 8
> run
1 2
3 4
5 6
7 8
out of data
STOP at line 70!
> _
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