
Publication DNET-UM004A-EN-P - March 2004
Troubleshoot a DeviceNet Network 12-17
81 Controller has set the scanner to the faulted
mode.
See if the following bit of the command register for the scanner is
on:
…O.CommandRegister.Fault
82 Error detected in sequence of fragmented I/O
messages from device.
• Check scan list device to make sure that its input and output
data sizes are correct.
• Check the configuration of the device.
83 Device returns error responses when the
scanner attempts to communicate with it.
• Check the accuracy of the scan list.
• Check the configuration of the device. The device may be in
another scanner’s scan list.
• Cycle power to the device.
84 Scanner is initializing the DeviceNet network. None. This code clears itself once the scanner attempts to initialize
all the devices on the network.
85 During runtime, the device is sending the wrong
size of data.
Contact Rockwell Automation support. See the back of this
publication.
86 Device is in idle state/mode (not producing
data) while the scanner is in run mode.
• Check the configuration and status of the device.
• If you set up an interlock between 2 scanners (controllers),
make sure both scanners are in run mode.
88 In shared inputs, the I/O parameters (polled,
strobed, etc.) do not match between the
scanners.
Use the same I/O parameters for the device in both scanners.
89 Scanner failed to configure a device using the
Automatic Device Recovery (ADR) parameters
• Make sure that you installed a compatible device.
• The offline configuration for the device does not match the
actual (online) configuration of the device.
90 Controller has set the scanner to the disabled
mode.
See if the following bit of the command register for the scanner is
on:
…O.CommandRegister.DisableNetwork
91 Bus-off condition (communication problem) • Cycle power to the device.
• Make sure all devices are at the same baud rate.
• Make sure there is no short circuit between a CAN line (blue
or white) and a power or shield line (black, red, shield).
• Check for any of the following sources of noise:
• Close proximity to a high voltage power cable
• Improper or no termination resistor
• Improper grounding
• Check for a device that is producing noise or inappropriate
data on the network.
92 The DeviceNet cable is not supplying power to
the communication port.
• Make sure the network has 24V dc power.
• Check the connection to the device.
95 The firmware of the device is currently being
updated.
None. Do not disconnect the device while the update is in progress.
You will lose any existing data in the device’s memory.
96 Communication port is in test mode. None.
Status code
(decimal)
Description Action
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