“Turbine”, “Boiler” and “Condenser.”
l
Only two tabs are open: “Boiler” and “Boiler_Valve point detail.”
6.
The operator calls up the system trend for the Boiler_Valve point.
l
The System trend display appears in the currently selected tab.
l
The Point detail display for “Boiler_Valve” is no longer open or available in a
tab.
l
The “navigate back” button is still enabled and the history list contains the items
“Turbine”, “Boiler”, “Condenser” and “Boiler_Valve point detail.”
l
Only two tabs are open: “Boiler” and “System trend.”
7.
The operator clicks the tab for “Boiler.”
l
The “Boiler” tab is now selected and shows the “Boiler” display.
l
The “navigate back” button is still enabled and the history list still only shows
“Turbine”, “Boiler”, “Condenser” and “Boiler_Valve point detail.”
l
There are still only two tabs open: “Boiler” and “System trend.”
8.
The operator clicks the “navigate back” button.
l
The “Boiler_Valve point detail” display appears in the currently selected tab
(“Boiler”).
l
The “Boiler” display is closed and no longer available in a tab.
l
The “navigate back” button is still enabled and the history list contains the items
“Turbine”, “Boiler” and “Condenser.”
l
The “navigate forward” button is enabled and the history list shows only
“System Trend.”
l
Two tabs are open: “Boiler_Valve point detail” and “System Trend.”
Using pan and zoom displays
Pan and zoom displays allow you to author a single large display covering all, or a large
portion, of your process in a single display. An example of a display that would benefit from
this functionality is a map of a long pipeline with equipment at various locations.
You open a pan and zoom display the same way as you open any display. You will be able to
recognize a pan and zoom display from the presence of the “thumbnail”. The thumbnail
provides a representation of the entire display as well as an indication of the current
“viewport”. The viewport indicates which portion of the overall display you are currently
viewing.
Using displays
Honeywell 2017 48
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