Rockwell Automation 20-COMM-S RS-485 DF1 Adapter - Manual (Page 36)

5-4 Troubleshooting
Net B Status Indicator
Status Cause Corrective Actions
Off The adapter is not
receiving data over the
network. • Place the controller in RUN mode, or apply
power to the peer device that will send I/O.
• Program a controller or peer device to
recognize and transmit I/O to the adapter.
• Configure the adapter for the program in the
controller or the I/O from the peer device.
Flashing
Green The adapter is receiving
data over the network. • No action required.