LED Status Displays

LED	Color	Status	Meaning
PWR	green	ON	Voltage is present
		OFF	Voltage is missing
RDY	yellow	ON	Communication Module is ready
		Flashes cyclically	Event queue blocked (slave devices only)
		OFF	Hardware defective
RUN	green	ON	Normal operation
		Flashes cyclically	Protocol error occurred
		OFF	No communication
STA	yellow	Flashes	Traffic detected
ERR	red	ON	Error
		OFF	No error