Estimados Colegas,
As you know there is a new option in the latest 11.1 update, 11.2 etc .. allowing displaying the value when the variable is out for range.
When this option is activates, if the variable quality is NS you will see the variable value in the HMI (instead of the invalidity symbol)
Note: This also work in historical mode (for latest versions too) in trend viewer for example
From Niko Demirdjian



