GT10/GT30
Troubleshooting
158
9.2 What to Do If Something Unusual Occurs (GT30)
9.2 What to Do If Something Unusual Occurs (GT30)
Problem Cause Solution Related
Screen is
blank
1)Power is not on.
2)(When only lamp and message parts
are configured to the base screen)
Value of substitute reference device
value does not exist in substitute data.
1)Supply 24V DC power to unit.
2)Check the address of the substitute
reference device and the device val-
ues on the PLC side.
P.24
GTWIN HELP
Error code
[ER**]
appears at
the top right
of the screen
An error has occurred in communication
between the GT30 and an external de-
vice (e.g. PLC).
[Troubleshooting error codes] are listed
on P.161. Refer to this section for details.
P.161
Screen
displays
[No Screen
data]
There is no base screen data in the
GT30. (Appears even when GT30 con-
figuration data exists.)
Transfer base screen data from GTWIN. GTWIN HELP
Screen
displays
[Screen No.
Error]
1)Screen settings from the PLC, the
GT30’s switch part or the auto-paging
indicate an unregistered screen num-
ber.
2)Whenbringing upthekeyboardscreen
duringdatainput, an unregistered key-
board screen number was specified.
3)GT30configurationdata andkeyboard
screen data exist in the GT30, but
there is no base screen data.
1)Create and register screen content or
specify the correct screen number.
2)Create and register keyboard screen
or specify the correct keyboard num-
ber.
3)Transfer base screen data from
GTWIN.
P.138
GTWIN HELP
GTWIN HELP
Screen
displays
[Memory is
Full]
The total capacity of transferred base
screen data exceeds capacity of the
GT30.
(Monochrome:1.5 M bytes,color:3.25M
bytes)
Delete part of the base screen data so
that the total capacitydoesn’t exceed the
capacity of GT30. Data capacity can be
checked by going to [View (V)] →
[Memory Usage Conditions] on GTWIN
menu bar.
GTWIN HELP
An
unspecified
screen
appeared /
there is
troublewhen
switching
screens
1)The screen specification in the PLC
screen setting, the GT30 switch part
or the auto-paging is wrong.
2)The startup screen is specified in the
GT30 configuration settings (GTWIN).
3)An erroneous device orvalue is speci-
fied in the first word of the basic com-
munication area word device.
1)Specify the correct screen number.
2)Check the start-up screen setting for
the GT30 configuration settings in
GTWIN. Delete unnecessary settings
and re-transfer configuration data.
3)Check the device content specified on
the PLC side in the first word of the
basic communication area. (Do not
use the basic communication area
with ladder programs.)
P.138
P.115
P.42 to P.44
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.
2)The screen number to which you are
attempting to switch has already been
written from the PLC to thescreen set-
ting area (the first word in the basic
communication area word device).
1)Specify correct screen number.
2)Refer to P.139 [If the screen does not
change as expected]. (Do not use the
basic communication area with ladder
programs.)
P.138
P.139
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