ProSoft Technology AN-X-AMX - Manual (Page 49)

AN-X-AMXRIO Page 45
Troubleshooting
LEDs
The AN-X-AMXRIO has LEDs that indicate the state of the Ethernet connection, the
connection to the AutoMax remote I/O network, and the overall module state.
Ethernet LEDs
There are two LEDs that indicate the state of the Ethernet connection.
The orange LED, labelled 100, is on if the link is running at 100 Mbits/second and is off
otherwise.
The green Link/Act LED is off if the link is inactive and is on if the link is active. If
activity is detected, the link blinks at 30 ms intervals and continues blinking as long as
activity is present.
SYS LED
The SYS LED indicates the state of operations performed by the application software and
errors it encounters.
Errors or status indication in boot mode cause the LED to flash yellow. Otherwise, the
LED flashes red.
Use the SYS LED in conjunction with the logs to locate the cause of problems.
In the following, red 3 means three red flashes followed by a pause, and so on.
SYS LED State Possible cause
Red 2 AN-X is in config mode
Red 3 DHCP configuration failed
Red 4 Fatal application error, check logs for cause
Red 5 Application memory access violation, check logs
Red 6 Application failed, illegal instruction, check logs
Red 7 Application crashed, unknown cause, check logs
Fast red flash Reconfiguration
Configuration of ControlLogix support failed
Single red flash ControlLogix scheduled data connection problem
Slow red flash script or application problem during startup
At startup, the SYS LED sequence is:
• boot code starts – fast flashing red