parameter

carmila

hi, i heve a problem using parameter. I use then num type for save  my parameter, but the value that I save to this num is gone when I start the program from main.

Can I save a parameter always exist, wheter i move the PP to main or not? What data type that I should use?

 

Thanks before

Carmila

j_proulx

Hello,

You should make sure your num data is declared as a PERS persistant and not a VAR variable.

Variable characteristics
A variable contains a data value. If the program is stopped and started the variable keeps its
value, but if the program pointer is moved to main the variable data value is lost.

What is a persistent variable
A persistent variable is basically the same as an ordinary variable, but with one important
difference. A persistent variable remembers the last value it was assigned, even if the program
is stopped and started from the beginning again.

BR Jim Proulx

carmila

Dear Jim,

 

Thank you for your reply. it's work. thank you. Finally I know the differences between var and pers (I don't know the differences before).

 

Thank you

 

Carmila