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4. Troubleshooting (DeviceNet)
4.1.2.2 Master: Busoff Detection
Master Unit LED
MS NS
Error Description
Busoff detection Communication stopped due to critical
error.
Green
Light ON
Red Light
ON
Duplicate MAC ID The MAC ID configuration was
duplicated. (This error occurs only
during unit start-up)
86 Fieldbus I/O Rev.6