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Areas for Control/Notification
Section 7-2
- Screen display (bit 15)
The “screen display” bit displays and clears screens. It is used to prevent the
formation of an afterimage on the display panel, etc. When bit 15 is turned
OFF, the screen is cleared and the backlight also goes off. However, if the
screen saver function is set with the memory switches of the NT31/NT31C, the
screen saver is activated (the operation depends on the setting made for the
screen saver function).
If bit 15 is turned ON (1), or the touch panel is pressed, while the screen is
cleared (or while the screen saver function is working), the screen that was
displayed immediately before the screen was cleared is redisplayed. The
backlight also comes back on (or flashes).
Reference: Even when bit 15 is OFF, the designated screen will be displayed if screen switch-
ing is designated from the host, or the status of bit 7 (backlight mode) changes, or
the touch panel of the NT31/NT31C is pressed.
- Processing priority registration (for NT link 1:N) (bit 14)
One of the PTs connected by the NT link (1:N) method can be registered for
priority processing. The PT for which bit 14 is set to ON (1) is given priority
over the other PTs, and has more rapid response time for screen display, touch
switch operations, etc.
When bit 14 is set to OFF (0), this registration is canceled and the response
speed is returned to normal. If priority registration is set for more than one PT,
the one set last is given priority.
The unit number of the PT given priority registration can be checked by moni-
toring (reading) a word at the CS1G/CS1H, C200HX/HG/HE (-ZE). For details
on the word monitoring operation at a PC, refer to the manual for the PC you
are using.
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