If the system, which this controller (NOVA series) adapted, has
troubles (if you used DI2~DI4), the page appear also display WARN
at the item state as picture
You must solve the error before reusing the controller, otherwise you
are reach error again. The controller is being the STOP mode
automatically when error occur
4.5 TROUBLE SHOOTING
Ref 4.4.8 DI NAME for change TROUBLE(DI ERROR) NAME
?
NOTE