Omron NT31 Operation Manuals page 292

Areas for Control/Notification
Reference
Functions of the Window Control Area
- Local window can be also opened, closed or moved by the operation of touch
switch (page 491, 492). In addition, by setting the attribute of the screen (base
screen) to be displayed, local window pops up at the same time the screen is
displayed (refer to page 257).
- Global window can be controlled only by writing to the window control area from
the host.
- Window position (coordinate) can be specified by 20 dot unit. (Y coordinate =
multiple of 20-1, because of the bottom–left coordinate specification)
Window can not be controlled and the contents of the window remains un-
changed when the number other than multiple of 20 is specified for X coordinate
or when the number other than multiple of 20-1 is specified for Y coordinate.
However, when opening a new window, the window is displayed at the position
which was specified when the window screen was created using the Support
Tool.
If the NT31/NT31C is currently operating, the status of the window is always writ-
ten to the window control area. The contents of the window control area depends
on the window type (global window/local window) and the circumstances as fol-
lows.
S When the window is opened by touch switch operation (local window only):
Window screen which is set for a touch switch pops up at the position which was
specified when the window was created using the Support Tool. At this time, the
status of the window is written to the "screen No.", "X coordinate" and "Y coordi-
nate" of window control area (corresponding window type).
S When the window is closed by touch switch operation (local window only):
The "screen No.", "X coordinate" and "Y coordinate" of window control area (cor-
responding window type) are all cleared to "0".
S When the window screen No. is specified for "screen No," of window control
area:
The specified window is opened as the corresponding window type. The window
position follows the contents of "X coordinate" and "Y coordinate" of window con-
trol area. However, in the following cases, the window is opened at the position
which was specified when the window was created using the Support Tool. (Win-
dow move operation is not performed and the X, Y coordinates return to the ex-
isting value when the incorrect "X coordinate" and "Y coordinate" are specified
without changing the "screen No.".)
- When the contents of X coordinate is not multiple of 20, or when the contents
of Y coordinate is not multiple of 20-1
- When the window will extend out of the screen with the specified value (ex.
When X coordinate: 300, Y coordinate: 199 are specified for the window
screen of 100 100 dots).
S When 0 is written to the "screen No." of window control area:
Window of the corresponding type is closed. The contents of "X coordinate" and
"Y coordinate" is retained.
Section 7-2
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