Rockwell Automation 1769-SDN Compact I/O DeviceNet Scanner Module Installation Instructions User Manual
Page 20
 
20 Compact I/O DeviceNet Scanner Module
Publication 1769-IN060C-EN-P - May 2002
82
Fragmentation 
Error
Error detected in sequence of 
fragmented I/O messages from 
device.
Check scan list table entry for slave 
device to make sure that input and 
output data lengths are correct. Check 
slave device configuration.
83
Slave Init Error
Slave device is returning error 
responses when the
module
attempts to communicate with it.
Check slave device’s configuration. 
Reboot slave device.
84
Not Yet 
Initialized
Module has not completed its initial 
attempt to establish 
communications with its slaves.
None. This code clears itself once the 
module properly
initializes all slave
devices on the network.
85
Receive Buffer 
Overflow
Data size returned is larger than 
expected. 
Configure the slave
device for a smaller
data size.
86
Device Went 
Idle
Device is producing Idle state.
Check the device configuration and 
slave node status.
89
Auto Device 
Replacement 
(ADR) Error
Slave device responded with an 
error to the initialization data sent 
to it by the scanner; or the 
configuration table in the scanner’s 
flash memory is not valid for a slave 
node.
Try the ADR download again. If it still 
fails, try clearing the ADR flash by 
downloading an empty ADR 
configuration to the scanner and then 
try the ADR configuration again.
90
Disabled 
Network
DeviceNet Port is Disabled
Check for the disable being set in the 
module command array.
91
Bus Off
Bus off condition detected on 
integral DeviceNet port. 
Check the DeviceNet connections and 
physical media integrity. Check system 
for failed slave devices or other 
possible sources of network 
interference. Check the Baud Rate.
92
No DeviceNet 
Power
No network power detected on 
DeviceNet port.
Provide network power. Make sure the 
module drop cable is providing the 
proper power to the DeviceNet port.
95
FLASH Update
Flash Update In Progress
None. DO NOT disconnect the module 
from the network while a flash update 
is in progress. 
98
Firmware 
Corrupted
Firmware is corrupted.
Reflash module firmware. DO NOT 
power cycle the module. Doing so may 
cause the module to become 
inoperable If the problem persists 
contact Rockwell Automation Technical 
Support.
99
Hard Fault
Cycle Power. Reflash module firmware. 
Contact Rockwell Automation Technical 
Support.
Code
(decimal)
Name
Description
Recommended Action