NAiS GT Series Technical Manual page 183

Problem
Buzzer Bit F of the first word in the basic
sounds communication area bit device is set to
continuously ON.
Backlight Bits C and D, of the first word (backlight
color flashes flashing setting) in the basic
communication area bit device are set to
ON.
Cannot 1) The screen transfer cable is not
transfer data connected.
from GTWIN 2) The PC and GT30 COM. port are
connected.
- Screen is
An error has occurred in the GT system.
blank (power
supply and
substitution
settings
noted above
do not
apply)
- An
incorrect
screen is
displayed
(error codes
and
erroneous
date and
time items
noted above
do not
apply)
- Switch
doesn't work
(grid and
validity
settings
noted above
are correct)
Nothing Communication conditions of GT30
happens for (COM. port) and PLC differ.
about 10
seconds
after turning
on power.
Cause Solution
Set the F bit to OFF on the PLC side.
(Do not use the basic communication
area with ladder programs.)
Perform correct bit operations on the
PLC side. (Do not use the basic
communication area with ladder
programs.)
1) Confirm that the screen transfer cable
is correctly and firmly connected.
2) Connect to TOOL port with screen
transfer cable.
1) After confirming the safety of the
device, etc., turn off the power supply
and then turn it on again. The GT30 CPU
will be reset.
2) If 1) produces no change, bring up the
system menu and initialize the memory
(F-ROM), then transfer data again from
GTWIN to the GT30.
NOTE:
When doing this, all base screen data,
GT30 setting data, keyboard screen
data, and bitmap data will be lose.
Before doing this, make sure all data has
been backed up.
3) If 2) produces no change, set the
operating mode setting switches 2, 3 and
4 on the GT30 to ON and reset the
power supply.
NOTE:
When doing this, all of the contents will
revert to those in effect at the time of
shipping, and all of the GT30 memory
contents will be cleared. Before doing
this, make sure all data has been backed
up.
Verify communication settings of GT30
and PLC and then make them the same.
Related
→6.2
→6.2
→GTWIN
HELP
→5.2.2
8-7