Here’s what more than 2,500 business decision-makers around the world say.Download the report
...with the Facility Hero app in hand! Discover how you can optimize your maintenance efforts today.Learn more
Access tailored services, 24/7 self-service and expert help. Anywhere, anytime, any project.Discover now
Don’t miss the latest events, videos, or articles. It’s all in our news bulletin.Sign up now
Schneider Electric Global Website×
Explore our global offerings or select your country from one of our five regions.Global
Découvrez nos offres globales ou sélectionnez votre pays dans l’une de nos cinq régions.
Goals and Symptoms
When the EN input of a function block goes low Unity is designed to zero-out the outputs of blocks where links are attached, or maintain the last value if a variable is attached. Former users of Concept will be accustomed to the outputs remaining at their last state irrespective of whether a link or a variable is attached to the output.
Causes and Fixes
In the image below an ADD_INT block is being fed by a link in one example and a variable in another with the EN input high.
When the EN input drops low the link value is set to zero and the variable maintains it's last value.