DeviceNet Troubleshooting
DeviceNet troubleshooting from the design rules out: 121 ohm termination at each trunk end, one grounding point, and a supply sized for the drops.
DeviceNet Scanner
DeviceNet Scanner IDLE Mode Issue
DeviceNet scanner IDLE mode means the scanner still reads its inputs but stops writing outputs. What puts it there, and how to get the outputs back.
Bus-Off Error 91 on a DeviceNet Network
DeviceNet error 91 is a bus-off, and it points at cabling or noise. How to read the scanner display, find the bad drop and get the network back.
DeviceNet Scanner Error Codes
DeviceNet scanner error codes with their causes and the fix for each. Find the code in the table, then work the action it points at on the scanner.
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