Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
ET 200eco PN
Operating Instructions, 08/2016, A5E01250250-AJ
89
Status display of the IO-L LEDs
The following table displays the possible status displays of the IO-L LEDs.
Table 7- 3 Status display of the IO-L LEDs
On
• DI/DQ operating mode:
Status when input or output is activated
• IO-Link operating mode:
When communication is running.
flashes at 2 Hz
• during startup or continuously if no operational IO-Link device as found.
LED display IO-Link Master 4 IO-L 4×M12 (6ES7148-6JD00-0AB0)
The figure below shows the position and arrangement of the LED display on the IO-Link
Master 4 IO-L 4×M12.
BF: Bus monitoring (red LED)
ON: Electronic/sensor/load supply 1L+ Non-Switched (green LED)
DC 24V: Load voltage supply 2L+ switched (green LED)
P1 LK: Port1 Link (green LED)
P2 LK: Port2 Link (green LED)
Q 1-4: Status indicator SIO mode (Green LED)
IO-L 1-4: Status display IO-Link communication / channel error (green/red LED)
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