1 Publication 1771-6.5.132 - June 2000
Chapter
7
Troubleshooting
What This Chapter Contains
This chapter describes the diagnostics provided by the LED diagnostic
indicators on the 1771-SDN module’s front panel.
Module Status Indicator
The bicolor (green/red) Module Status LED indicates whether the
1771-SDN module has power and is functioning properly.
For information about the See page
Module Status Indicator 7-1
Network Status Indicator 7-2
Node/Error Code Indicator 7-2
Module Status Indicator
If the indicator
is
Then Take this action
Off There is no power applied to the
module.
Verify power connections and
apply power.
Green The module is operating normally. No action required.
Flashing Green The module is not configured. Configure the module.
Flashing Red There is an invalid configuration. Verify DIP switch settings. Check
configuration setup.
Red The module has an unrecoverable
fault.
Replace the module.
Module Status
Indicator
Network Status
Indicator
op Part of Module
