Rockwell Automation 1788-CN2DN ControlNet-to-DeviceNet Linking Device Installation Instructions User Manual
Page 36

36 ControlNet-to-DeviceNet Linking Device
Publication
1788-IN052D-EN-P - February 2007
91
Bus-off condition likely due to cable
or signal errors.
• Cycle power to the device.
• Verify that all devices are set
to the same baud rate.
• Check DeviceNet cabling to
make sure no short circuits
exist between CAN (blue and
white) wires and power or
shield (black, red, and shield)
wires.
• Check the media system for
the following noise sources:
– Device located near
high-volt power cable.
– Incorrect or no termination
resistor used.
– Improper grounding.
– Device on network
producing noise or
incorrect data for the
network.
92
DeviceNet cable not supplying power
to the device’s communication port.
• Verify the network’s 24V dc
power supply is operating
properly.
• Verify good cable condition.
• Check cable connections to
the device.
95
A device’s firmware is being updated
or a configuration is being
downloaded.
None. Do not disconnect the
device while the update is in
process as existing data in device
memory will be lost.
DeviceNet Status Codes
Status Code Description of Status
Recommended Action