Installation manual
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Check the Scanner Configuration
Verify the scanlist
Baud Rate
Node Address
Series/Revision of the 1747/1771-SDN scanner
Refer to Knowbase for documents on factory defaulting DeviceNet Scanners
Check the Nodes
Cycle power to the 24V supply, this will reset the scanner to initialize the network
Examine the scanner display codes to identify problem nodes.
( Reference the SDN manual for a description of these codes )
At problem nodes
Blinking GREEN means the node is not being allocated by the scanner
Check that the node is in the scan list
Check that the scanner is not bus off
Check if connection is timing out
Blinking RED means no communication
Check for missing power on all nodes
Check if all other nodes are disconnected
Check node baud rate ( Bad baud rate does not always cause buss off )
Check scanner, if a code 91 is displayed then the communications connection with the node
has timed out.
Recycle 24V supply and then reset scanner.
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