Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module User Manual - Manual (Page 141)

Publication 1769-UM009E-EN-P - August 2009 141
CompactLogix Backup on the DeviceNet Network Appendix B
Using Indicators to
Check Status The 1769-SDN scanner module’s status indicators provide useful information
(for example, determining which scanner module is primary) about backup
scanner module status.
Module Status Indicator
This table lists the indicators to monitor when checking backup status.
Module Status Indicator Behavior
If this indicator Exhibits this behavior This condition exists
Module status (MS) Flashing red • Recoverable Fault - Memory has
been erased or is being
programmed.
• Bad firmware in module.
Module Status
Indicator
Network Status
Indicator
Node Address and
Status Display