NAiS GT Series Technical Manual page 179

Problem
Screen 1) No screen number has been written to
doesn't the screen setting area (the first word in
switch the basic communication area word
device) from the PLC.
2) The screen number to which you are
attempting to switch has already been
written from the PLC to the screen
setting area (the first word in the basic
communication area word device.)
Screen is 1) The power voltage may be low.
dim 2) the contrast is set too low.
3) The backlight is off due to the
[Backlight Auto-off] setting in the [Setup]
of the GT configuration settings in
GTWIN.
Backlight 1)The backlight auto-off timer setting is
goes off too too short.
quickly
Date/time 1) The PLC's internal calendar timer
display is used as a reference is incorrect.
incorrect
Touch panel 1) Valid conditions have been set for the
doesn't work switch par, but those conditions have not
been met.
No operating 1) The [Switch Sounds] setting under
sounds are [Options] in the switch part attributes is
heard when set to [Disabled].
the touch 2)The [Touch Sounds] setting under
panel is [Setup] in the GT configuration settings
pressed. in GTWIN is set to [Disabled].
Nothing Communication conditions of GT (COM.
happens for port) and PLC differ.
about 10
seconds
after turning
on power.
Cause Solution
1) Specify correct screen number.
2) Refer to [If the screen does not
change as expected] in 6.1.2. (Do not
use the basic communication area with
ladder programs.)
1) Check the capacity of the power
supply unit if it is enough for the GT's
power consumption.
2) Bring up the system menu and adjust
the contrast.
3) Touching any area of the screen lights
that area. If a switch part is set on the
touched area, the area will not light even
if touched. To change the setting,
change the content of the backlight auto-
off settings.
1) Change the backlight auto-off timer
setting.
1) Adjust by rewriting the value in the
PLC's internal calendar timer.
1) Check that the device status
conditions on the PLC side are valid.
1) Change the setting to [Enabled].
2) Change the setting to [Enabled].
Verify communication settings of GT and
PLC and then make them the same.
Related
→6.1
→1.1
→5.2.7
→5.2.5
→5.2.5
→All PLC
manuals
→GTWIN
HELP
→GTWIN
HELP
→5.2.5
→5.2.2
8-3