4. Troubleshooting (DeviceNet)
4.1.2.2 Master: Busoff Detection
Green
Light ON
148
Master Unit LED
MS
NS
Red Light
Busoff detection
ON
Duplicate MAC ID
Error
Communication stopped due to critical
error.
The MAC ID configuration was
duplicated. (This error occurs only
during unit start-up)
RC620 Option Fieldbus I/O Rev.8
Description