Troubleshooting, Module status led (mod led) – Rockwell Automation 1761-NET-DNI DeviceNet Interface (DNI) User Manual
Page 63

Publication 1761-UM005B-EN-P - October 2006
Setup, Programming, and Troubleshooting 63
Troubleshooting
The DeviceNet Interface has three LED indicators.
LED Indicators
Module Status LED (MOD LED)
The module status LED provides information specific to the DNI.
LED
Color
Module Status LED
bicolor - red/green
Network Status LED
bicolor - red/green
RS-232 LED
green
Module Status LED
LED Condition
DNI State
Problem/Indication
Off
Not Powered
The device may not be powered or
firmware unable to run.
Green
(1)
(1)
Normal condition.
DNI Series A: Device
Operational
DNI Series B:
Device Scanning
The device is operating in a normal
condition.
Flashing Green
(1)
DNI Series A:
Device in Standby
DNI Series B:
Device Not Scanning
For DNI Series A only, the device may be
in Standby Mode; set to operational.
For DNI Series B, I/O Scan (Polling
Enable) may need to be set (1).
Flashing Red
Minor Fault
Recoverable fault.
DNI may need to be commissioned (the
DNI will not operate when set to the
out-of-box defaults).
The device needs commissioning due to
missing, incomplete, or incorrect
configuration.
EEPROM may be corrupt, re-commission
the DNI.
Red
Unrecoverable Fault
The device has an unrecoverable fault
which requires the power to be cycled, or
the DNI may need to replaced.
Flashing Red-Green Device Self Testing
The device is in self test and should occur
only at power up or reset.