B&B Electronics VFG3000 - Manual - Manual (Page 125)

C ONFIGURING A V IRTUAL HMI P RIMITIVE D ESCRIPTIONS
R EVISION 1 P AGE 109
The third page contains the label and formatting information for the field...
The properties shown are as described for an integer tag, and you are thus referred to the
earlier section of the manual that refers to Data Tags for more information. Note that the
existence of this primitive explains why one must enter minimum and maximum values for
formulae, when such tags can never be the subject of data entry. If such limits were not
defined, how would Fieldbus Gateway Manager know how to scale the bar?
T HE R ICH S LIDER P RIMITIVES
The Vertical Slider primitive displays a value, typically from an integer tag, as a
slider that can either display a value, or allow it to be manipulated by touching a
specific location on the primitive, or by pressing buttons at either end.
The Horizontal Slider primitive displays a value, typically from an integer tag, as
a slider that can either display a value, or allow it to be manipulated by touching a
specific location on the primitive, or by pressing buttons at either end.
Just as with other rich primitives, the slider primitives are capable of deriving much of the
required formatting information from the tag used as their controlling value. Just as with tag
text primitives, multiple tabbed pages are used to edit the primitives’ properties.