Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual User Manual
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122
Publication 1769-UM009E-EN-P - August 2009
Chapter 8 Troubleshooting
This table summarizes the meanings of the status indicators and numeric
codes.
Module Indicator
Network Indicator
Node Address and
Status Display
Troubleshooting the Status Indicators and Numeric Display
Indicator
Color/Status
Description
Module
Off
No power applied to module.
Apply power.
Flashing
Green
No bus master (MicroLogix or CompactLogix controller) present.
Verify module connectors are properly seated. If they are, cycle power to the controller. If this does not
correct the problem, replace the controller. If replacing the controller does not correct the problem,
replace the scanner.
Solid Green
Normal operation.
Flashing Red
• Recoverable Fault - Memory has been erased or is being programmed. Complete the flash update or
start a new update.
• Bad firmware in module. Replace firmware.
Solid Red
Unrecoverable fault.
Verify module connectors are properly seated. If they are, verify that bus terminator/end cap is installed.
Cycle power. If still faulted, replace the module.
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