Status LEDs

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Position of the LEDs

LED Color Status Meaning
PWR Green On Power supply available
Blinking
Off Power supply not available or defective hardware
RDY Yellow On Boot procedure
Blinking Boot failure
Off
RUN Green On Communication Module is operational
Blinking
Off Communication Module is not operational
STA1 PNIO Red On In incorporation with STA2 PNIO: License fault
Blinking System error
Off No system error
STA2 PNIO Red On No connection; in incorporation with STA1 PNIO: License fault
Blinking Configuration fault: some configured IO Devices are not connected
Off No bus error, communication is running

The RJ45 Ethernet connector contains two LEDs showing the current Ethernet port connection state. The following figure and table show the position and function of the LEDs:

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Position of the LEDs in the RJ45 connectors

LED Color Status Meaning
PNIO1 LED “Link” Green On Ethernet connection established
Off No Ethernet connection
PNIO1 LED “RX/TX” Yellow On
Blinking Device sends/receives frames
Off
PNIO2 LED “Link” Green On Ethernet connection established
Off No Ethernet connection
PNIO2 LED “RX/TX” Yellow On
Blinking Device sends/receives frames
Off