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5.2 What to DO If Something Unusual Occurs
(GT02/GT02L/GT03-E/GT05/GT12/GT32/GT32-R/GT32-E)
Problem
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.
Error code
An error has occurred in communication
[ER****] appears
between the GT and an external device
at the top right of
(e.g. PLC).
the screen
Screen displays
There is no base screen data in the GT.
[No Screen data]
(Appears even when GT configuration
data exists.)
Screen displays
1) Screen settings from the PLC, the GT's
[Screen No.
switch part or the auto-paging indicate
Error]
an unregistered screen number.
2) When bringing up the keyboard screen
during data input, an unregistered
keyboard screen number was specified.
3) GT configuration data and keyboard
screen data exist in the GT, but there is
no base screen data.
Screen displays
The total capacity of transferred base
[Memory is Full]
screen data exceeds the memory capacity
of the GT.
An unspecified
1) The screen specification in the PLC
screen
screen setting, the GT switch part or
appeared/there
the auto-paging is wrong.
is trouble when
2) The startup screen is specified in the
switching
GT configuration settings (GTWIN).
screens.
3) An erroneous device or value is
specified in the first word of the basic
communication area word device.
Screen doesn't
1) No screen number has been written to
switch
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 the screen
setting area (the first word in the basic
communication area word device.)
Cause
-
Solution
1) Supply the power supply to unit as per
specifications.
2) Check the address of the substitute reference
device and the device values on the PLC side.
Refer to <Troubleshooting Error Codes>.
Transfer base screen data from GTWIN.
1) Create and register screen content or specify
the correct screen number.
2) Create and register keyboard screen or specify
the correct keyboard number.
3) Transfer base screen data from GTWIN.
4) Press [ESC] button to return to the previous
screen.
Delete part of the base screen data so that the
capacity doesn't exceed the total capacity.
Data capacity can be checked by going to [View
(V)][Memory Usage Conditions] on GTWIN
menu bar. When the data capacity is not over the
limit, invalid data could possibly be remaining in
the GT. When transferring data, do so after
deleting the screen.
1) Specify the correct screen number.
2) Check the start-up screen setting for the GT
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.)
1) Specify correct screen number.
2) Refer to Reference Manual.
5-5
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