Omron NT620C, Operation Manual

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4-3 Section Screen Display
129
4-3 Screen Display
This section describes the screen information required for the operation with the
NT620S/620C.
For the actual method used to change the displayed screen, see “Switching the
Screen Display” (page 191).
For the actual method used determine the screen number of a displayed screen,
see “Notifying the Display Screen to the PC (To display the Number of Currently
Displayed Screen)” (page 195).
4-3-1 Classification of Screens
The NT620S/620C is provided with the following types of screens which are clas-
sified by the display method.
- Normal screen
- Overlapping screen
- Continuous screen
The screen type is set with each screen in the “Screen Selection” screen of the
support tool. Select a screen type according to the purpose, and create charac-
ters and figures on the screen. The details of each screen type are given below.
Normal Screen A normal screen is the basic screen of the NT620S/620C. It is not necessary to
select a screen type (overlapping or continuous) when to create the screen data
on a normal screen.
When a normal screen is selected, existing screens will be erased and a normal
screen will be displayed.
Overlapping Screen Several normal screens can be overlapped and displayed as one screen. A
group of overlapped screens is called an “overlapping screen”.
Several normal screens are displayed in the order of screen numbers which have
been designated to each screen and form an overlapping screen. Up to eight
screens can be overlapped to form one overlapping screen. The base screen
used for making an overlapping screen is called a “parent screen”, and a bunch
of screens which are laid over the parent screen are called “child screens”.
With the child screens of an overlapping screen, all display elements can be reg-
istered. The parent screen is used to register the child screens, and so display
elements cannot be registered.
The screen attributes such as a buzzer attribute set in the parent screen become
effective in an overlapping screen.
[Example overlapping screen]
(1)
(2)
(3)
Screen No. 8
Screen No. 10
Screen No. 7
Screen No. 25
This is an
overlapping
screen.
This is an
overlapping
screen.