Omron NS Series Setup Manual page 216

Errors during PT Operation
Symptoms at
PT
RUN indicator Power is not being
does not light. supplied to the PT.
The fuse is broken.
The screen is The PT is in system
blank. startup waiting
status.
The screen saver
function is operat-
ing.
The backlight is
OFF.
The backlight has
malfunctioned.
The display Screen switching,
update is slow. opening and closing
pop-up screens,
and switching
frames are being
performed fre-
quently.
The message com-
munications interval
is too long.
Screens are Communications
slow to are not possible
change. with the host.
The touch PT has malfunc-
panel does not tioned due to exter-
respond. nal noise.
The touch panel is
damaged.
The display is The brightness set-
dark. ting is too low.
The backlight is
faulty or its service
life has expired.
Causes
Check the connection points and supply power to the PT
correctly. (Refer to 3-1 Installing the PT.)
Contact your nearest OMRON representative.
This is not an error. Information will be displayed when the
waiting time has lapsed.
This is not an error. Touch the screen, or operate the sys-
tem memory for switching the screen from the host to
switch the screen as follows:
•
Set the screen number in $SW0.
•
Set the pop-up screen number in $SW1, 4 and 7.
(Refer to 2-4 System Memory in the PT Programming Man-
ual for details on the system memory.)
Turn ON the backlight by setting system memory bits $SB6
to 8 for adjusting backlight brightness to ON. (Refer to 2-4
System Memory in the PT Programming Manual for details
on the system memory.)
The backlight must be replaced. Contact your nearest
OMRON representative.
If screens are opened and closed frequently, the display
update may take some time and communications may be
delayed.
Adjust the interval between screen switches so that the
system is not overloaded.
In the CX-Designer, select PT - Communication Setting,
click the Comm-All Tab, and set a shorter communications
interval. (For details, refer to System Settings and Project
Properties in the CX-Designer's Online Help.)
If a communications error is displayed, refer to 5-2-7 Com-
munication Errors and Countermeasures in the NS Series
Programmable Terminals PROGRAMMING MANUAL
(Cat. No. V073)
Communications errors will not be displayed if automatic
recovery is set for communications. If automatic recovery is
set, check if communications with the host are possible
using the communications test on the System Menu. If
more than one host is registered, test communications with
all of the hosts.
Reset the PT, and wire it according to noise prevention
measures.
Test the touch panel using the hardware check in the Sys-
tem Menu. If an error has occurred, contact your nearest
OMRON representative.
Increase the backlight brightness in the PT Tab Page of the
System Menu.
The backlight must be replaced. Contact your nearest
OMRON representative.
7-3 Troubleshooting and Maintenance
Measures
7-11