1 Publication 2711P-UM001A-EN-P
Chapter
8
Troubleshooting and Maintenance
Chapter Objectives
This chapter provides information on how to isolate and correct
common operating problems with system components.
• general troubleshooting
• troubleshooting individual components (display, touch screen,
keypad, attached keyboard or mouse)
• Ethernet
• startup
• advanced troubleshooting
• system error messages
• system identification errors
• restarting in configuration mode
• startup problems
• restarting in safe mode
• LED indicators
• firmware upgrade
• cleaning the display window
General Troubleshooting
This section provides a list of general troubleshooting steps to follow
when trying to isolate problems.
• Check for adequate power. The PanelView Plus terminal
requires 24V dc at 1.5 A minimum. An under-powered unit
could result in unpredictable behavior.
The AC Power Supply (2711P-RSACDIN) meets Class 2/SELV
requirements, and is approved for the PanelView Plus terminal.
• Check LED indicators on the Logic Module. Is power on? Is
the unit attempting to start? The red LED should be Off, except
for a few brief flashes, and the green LED should be On. If the
LEDs remain Off, the power supply or Logic Module has failed.
Check the power cable. Replace the Logic Module if the power
is within range; if not, replace the power supply.
AB PLCs
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