Omron NB-series Operation Manual page 88

3 Functions of NB-Designer
As shown above, Sheet Screen can be selected directly from the [Sheet Screen] option. Sheet
Screen is different from the general screen. The components in Sheet Screen will be inserted into
the general screen during the running, and in fact Sheet Screen isn't displayed at all, but the display
and control of its components are similar to that of the components in the general screen.
The Relationship of Screen
One screen can include Common Sheet, Base Screen and Menu Screen while one Common Sheet
or Base Screen can include many pop-up screens. And the relationship between them is shown as
below.
Screen
Base Screen Menu Screen Common Sheet
When the screen-switching command is executed, the PT will clear the current screen (the pop-up
screen attached on the current screen etc included) and switch to the screen to be displayed, but
Common Sheet will always be displayed in the screen. The original contents of Base Screen can't
be changed by the pop-up screen that called by the direct screen or indirect screen, and the pop-up
screen is just attached to Base Screen. In addition, up to 3 sheet screens can be set for each screen
in screen property setup.
When one Base Screen (Screen No. is 0 or ranges from 10 to 32767) is called out, all the
components in this screen will be displayed in the PT. If Base Screen has the Sheet Screen, all the
components defined in its Sheet Screen will be displayed. All of the Touch Trigger components (such
as Bit Button, Function Key etc.) defined in the Sheet Screen are valid in the current screen. If there
are display components in Common Sheet, they will be displayed in the current screen. And all the
Touch Trigger components defined in Common Sheet are valid.
Each project includes 32768 screens (max.) (Base Screen, Common Sheet and Menu Screen etc
included), and only one screen can be used as Menu Screen. But you can use [Change Menu
Screen] function key to make the screen switch to the specified screen as Menu Screen. For details,
refer to 3-7-2 Function Key (Page 3-197).
Each new project has a default initial screen, and the default screen No. is 0 (If you want to change
it, you just need to make changes in [PT Property] in project editing screen.). The valid screen No.
ranges from 0 to 32767.
3-46 NB-series Programmable Terminals NB-Designer Operation Manual(V106)