Appendix
B
B-1
Troubleshooting
This appendix describes how to diagnose and solve problems regarding the
operation of a PanelView 1200 terminal.
To view the I/O racks and block transfer settings as defined in
PanelBuilder software, select Rack Assignments from the PanelView 1200
terminal’s Configuration Mode Menu.
The following table lists the most common major fault messages that can
appear on a PanelView 1200 terminal.
Major Fault Message
Cause
What to do
Stuck Cell detected or Stuck Button detected.
A touch cell or Keypad button has been
depressed for longer than the Stuck Button
Timeout setting allows.
Restart the terminal. If this problem occurs
repeatedly due to an operator holding the button
down for too long, increase the Stuck Button
Timeout setting in the Configuration menu.
If a button or cell is permanently stuck, call your
AB representative.
Watchdog Test Failed. Unit is disabled.
Watchdog circuit is unable to reset the machine. Servicing by AllenBradley is required.
System ROM corrupted. Unit is disabled.
The ROM containing the system firmware is
defective.
Servicing by AllenBradley is required.
RAM TEST failed. Unit is disabled.
The nonbackedup RAM used by the terminal
firmware is defective.
Servicing by AllenBradley is required.
Video hardware initialization failed. Unit is
disabled.
There is a video hardware problem.
Servicing by AllenBradley is required.
Mismatched application file. Unit is disabled.
1.) The application file is for the wrong type, i.e.,
a Keypad file on a Touch Screen terminal.
2.) The jumper settings are wrong.
1.) Download an application file of the
appropriate type.
2.) Check the setting of JP5:
FB = Keypad
TS = Touch Screen
Failed to configure the Comm card. Unit is
disabled.
The Communication circuitry is faulty.
Servicing by AllenBradley is required.
Failed to stop PLC communication. Unit is
disabled.
The Communication circuitry is faulty.
Servicing by AllenBradley is required.
Application file corrupted.
The system has not stored the file correctly.
Download the file again or install new EEPROM.
Verifying Configuration
Settings
PanelView 1200 Major Fault
Error Messages
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