Rockwell Automation 1747-SDN SLC 500 DeviceNet Scanner Module User Manual - Manual (Page 91)

Publication 1747-UM655B-EN-P - June 2007
Troubleshooting 91
Numeric Display
Numeric
Code Description Corrective Action
0…63 Normal operation. The numeric display indicates the
1747-SDN module’s node address on the DeviceNet
network. None.
65 Normal operation when AutoScan is enabled. None.
70 Module failed Duplicate Node Address check. Change the module channel address to another available
one. The node address you selected is already in use on
that channel.
71 Illegal data in scanlist table (node number alternately
flashes). Reconfigure the scanlist table and remove any illegal data.
72 Slave device stopped communicating (node number
alternately flashes). Inspect the field devices and verify connections.
73 Device’s identity information does not match electronic key
in scanlist table entry. Verify that the correct device is at this node number. Make
sure that the device at the scrolling node address matches
the desired electronic key (vendor, product code, product
type).
74 Data overrun on port detected. Modify your configuration and check for invalid data. Check
network communication traffic.
75 No traffic from other modules detected on the network. Check the network configuration. (Scanlist may be empty.)
76 No direct network traffic for module detected. None. The module hears other network communication.
77 Data size expected by the device does not match scanlist
entry. Reconfigure your module for the correct transmit and
receive data sizes.
78 Slave device in scanlist table does not exist. Add the device to the network, or delete the scanlist entry
for that device.
79 Module has failed to transmit a message. Make sure that your module is connected to a valid
network.
Check for disconnected cables.
80 Module is in Idle mode. Put controller in Run mode. Enable Run bit in module
command register.
81 Module is in Fault mode. Check Module Command Register for fault bit set.
82 Error detected in sequence of fragmented I/O messages
from device. Check scanlist table entry for slave device to make sure that
input and output data lengths are correct. Check slave
device configuration.
83 Slave device is returning error responses when module
attempts to communicate with it. Check accuracy of scanlist table entry. Check slave device
configuration. Slave device may be in another master’s
scanlist. Reboot slave device.
84 Module is initializing the DeviceNet network. None. This code clears itself once module attempts to
initialize all slave devices on the network.
85 Data size was incorrect for this device at runtime. Slave device is transmitting incorrect length data.
Verify device is not configured for variable poll connection
size.
Try replacing the device.