Problem
Cause
Solution
Screen
doesn’t
switch
1) No screen number has been written to
the screen setting area (the first word
in the basic communication area word
device) from the PLC.
1) Specify correct screen number.
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.)
2) Refer to Reference Manual.
Screen is
dim
1) The power voltage may be low. 1) Check the capacity of the power supply unit if it is
enough for the GT’s power consumption.
2) The contrast is set too low. 2) Bring up the system menu and adjust the contrast.
3) The backlight brightness is set too
dark.
3) Bring up the system menu and adjust the
brightness.
4) The backlight is off due to the
[Backlight Auto-off] setting in the
[Setup] of the GT configuration
settings in GTWIN.
4) 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.
Backlight
goes off too
quickly
1)The backlight auto-off timer setting is
too short.
1) Change the backlight auto-off timer setting.
Date/time
display is
incorrect
1) The PLC’s internal calendar timer
used as a reference is incorrect.
1) Adjust by rewriting the value in the PLC’s internal
calendar timer.
Touch panel
doesn’t work
1) Valid conditions have been set for the
switch part, but those conditions have
not been met.
1) Check that the device status conditions on the PLC
side are valid.
No operating
sounds are
heard when
the touch
panel is
pressed.
1) The [Switch Sounds] setting under
[Options] in the switch part attributes
is set to [Disabled].
1) Change the setting to [Enabled].
2)The [Touch Sounds] setting under
[Setup] in the GT configuration
settings in GTWIN is set to [Disabled].
2) Change the setting to [Enabled].
Nothing
happens for
about 10
seconds
after turning
on power.
Communication conditions of GT (COM
port) and PLC differ.
Verify communication settings of GT and PLC and
then make them the same.
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