Allen-Bradley 1769-SDN, Installation Instructions Manual, Page: 63 / 68

Rockwell Automation Publication DNET-IN001B-EN-P - January 2012 63
1769 DeviceNet Modules Status Indicators and Data Structures Appendix B
1769-SDN Scanner Data
Structures
The scanner uses the input and output data images to transfer data, status, and
command information between the scanner and the controller.
Input Data Image
The input data image is transferred from the scanner module to the controller.
89 The scanner failed to configure a device by using the
Automatic Device Recovery (ADR) parameters. • Make sure that you installed a compatible device.
• If the offline configuration of the device does not match the
actual (online) configuration of the device, change the
offline configuration to match the online configuration.
90 The controller has set the scanner to Disabled mode. If desired, enable the scanner by locating the
O.CommandRegister.DisableNetwork bit on the command
register and turning it off.
91 Indicates a Bus-off condition likely due to cable or signal
errors. • Cycle power to the device.
• Verify that all devices are set to the same communication
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 these noise sources:
– Close proximity to high-voltage power cable
– Incorrect or no termination resistor
– Improper grounding
– Noise produced from another device on the network
– Incorrect data for the network
92 The DeviceNet cable is not supplying power to the device’s
communication port. • Verify that the network’s 24V DC power supply is operating
properly.
• Verify the cable is in good condition.
• Check the 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 because existing data in the device memory will be
lost.
96 The communication port is in Test mode. None.
97 The controller has placed the scanner in Halt mode. If the O.CommandRegister.HaltScanner bit is on, turn it off.
Then cycle scanner power.
98 General firmware error. Replace device.
99 System failure. Replace device.
Table 14 - Status Codes
Status Code Description Recommended Action
Word Description Data Type
0…63 Status Structure 64-word array
64 and 65 Module Status Register 2 words
66…245 Input Data Image 180-word array