User Manual Manual

Publication 1734-UM008B-EN-P - August 2005
5-2 Diagnostics
Indication Probable Cause
Module Status
Off No power applied to device
Alternating Red/Green LED powerup test (module self-test)
Flashing Red Recoverable fault has occurred:
Firmware (NVS) update
MAC ID changed
CPU load exceeded
Solid Red Unrecoverable fault has occurred:
self test failure (checksum failure at powerup, ramtest
failure at powerup)
firmware fatal error
Flashing Green Waiting for connection or ControlNet cable break
Solid Green Module is operating correctly (normal mode)
Indication Probable Cause
ControlNet A/B Status
Viewed Together
Both Steady Off Reset, no power or entire network interface deactivated
Alternating
Red/Green
Self test mode
Alternating Red/Off Bad/invalid node configuration (such as duplicate MAC ID)
Both Steady Red Failed link interface
Viewed Individually
Steady Off Channel disabled or channel not supported
Flashing Red/Green Invalid link configuration
Flashing Red/Off Severe Link error - link fault or no MAC frames received
Flashing Green/Off Temporary channel error or listen-only
Steady Green Normal operation - MAC frames are being received without
detected errors