Variable Unreadable in runtime

Variable Unreadable in runtime

Hi,
Do i need to put my Box in
either
Project Properties->Graphical Design->Start Screens
OR
one of the screens specified by AUTOSTART script in function
in order for values to be readable ? because if i don't do that, I will get

when i launch my program in runtime and no values can be read from the variable ( snmp OID)

This is a migrated post! Originally posted on 06.05.2011 by user whitetaru. Please be aware that information can be outdated.