Allen-Bradley devicenet modules in logix5000 control systems ユーザーズマニュアル

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Publication DNET-UM004A-EN-P - March 2004
12-18        Troubleshoot a DeviceNet Network
97
Controller has set the scanner to the halted 
mode.
1. See if the following bit of the command register for the 
scanner is on:
…O.CommandRegister.HaltScanner
2. Cycle power to the scanner.
98
General firmware error.
Replace device.
99
System failure.
Replace device.
Status code 
(decimal)
Description
Action