Rockwell Automation 1791D-N4CV2X CompactBlock I/O for DeviceNet Expansion Module I.I. - Manual (Page 12)

12 CompactBlock I/O Analog Combination Input/Output Expansion Module
Publication 1791D-IN002A-EN-P - June 2003
The DeviceNet Network uses advanced network technology,
producer/consumer communication, to increase network functionality and
throughput. Visit our web site at
http://www.ab.com/networks for producer/consumer technology
information and updates.
Troubleshooting
Refer to the following LED indicators to troubleshoot the module.
Expansion Status Indicator
LED Indicator: Status:
Solid Green/On • Passed internal diagnostics
• Communication over bus
• Analog converter and MPU operating properly
Flashing Red Recoverable fault (no communication)
Solid Red Unrecoverable fault (Hardware error)
Off None of the above conditions is true
Expansion Power Indicator
LED Indicator: Status:
Solid Green Module powered
Off Module not powered
Input Channel Status Indicator
LED Indicator: Status:
Solid Green/On Input channel operating properly
Flashing Red Input channel overrange or open wire @ 4-20mA current mode
Off Neither of the above conditions is true