Having just got V_ARMED working as I want I notice that when a node presents itself and children that the V_ARMED setting seems to be disabled by default.
So a node with child sensor V_TRIPPED and V_ARMED will only display V_TRIPPED as default. You have to go through the menus to enable V_ARMED and that could be an issue for many people who are new to this.
Once found and enabled though, it does do what I want
@ThomasDr I checked mixed sensor and it works as expected.
As you have grouping similar type of sensor data(volt parameter) you can use Grouped sensors graph will be more meaningful in this place. Update here if you still face issue.
@hoegaarden_bier MyController searching in the database for that gateway from 1-254, will give first available id.
@danilosouto You mean dashboard widgets update time? For dashboard we can configure refresh time. Sensor action default refresh time 30 seconds. you can change this under Setting-->System--> global page refresh