1-4SectionCommunications with the Host
33
Example of PT Status Notify Area Application
When the PT status changes, the change is applied to the PT status notify area
as shown below (page 61).
PC
12345678
1 2 3 4 5 6 7 8
5 6 7 8
1 2 3 4
12345678
8800
0013
PT
Numeral memory table entry 13
PT status notify area
Content upgrade memory table entry
PT status
Allocated word (numeral table entry 13)
Start
Start + 1
7 8 9
4 5 6
1 2 3
0 .
Reference: When the PT is set to NT20S or NT30/620 compatible mode, the word configura-
tion is identical to that of the earlier NT20S, NT30, NT30C, NT620S, NT620C,
and NT625C PTs.
The window control area is used to notify and control the window status. The
window control area has areas that correspond to three windows. Each area
stores the screen number, and the X and Y coordinates of the lower left corner of
the window that is being displayed.
When data is written to this area in the PC, the PT reads the contents and
executes tasks such as switching the windows to be displayed or moving the
position of the windows according to the contents (page 241).
When the window display status changes, the change is written to this area in
the PC. By reading the data from this area, the window display status can be
checked (refer to page 241).
If the window functions are not used, it is not necessary to allocate a window con-
trol area in the host.
Example of Window Control Area Application
When data is written to the window control area, the PT operates as shown be-
low.
Window
(screen No.34)
Opens
X coordinate
Y coordinate
Screen number
PC
PT
0020
0034
0079
WIndow control area
(local window 2)
Bottom left coordinate
(20, 79)
When the window display status changes, the change is notified to the window
control area as shown below (Window’s Opening/Closing status is notified to the
PT status notify area as well).
Move
X coordinate
Y coordinate
Screen No.
Window
(screen No.34)
PC
PT
0140
0034
0119
PT status notify area
(local window 2)
Bottom left coordinate
(140, 119)
WIndow control area
Functions of the Window
Control Area
(PC to and from PT)
To Next Page
Loading...
Need help?
General
