Siemens SIMATIC Distributed I/O ET 200eco PN Operating Instructions Manual page 82

LED
IO-L
flashes at 2 Hz
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.
①
②
③
④
⑤
⑥
⑦
⑧
ET 200eco PN
Operating Instructions, 06/2022, A5E01250250-AN
Meaning
• during startup or continuously if no operational IO-Link device as found.
SF/MT: Group fault/Maintenance (red/yellow LED)
BF: Bus monitoring (red LED)
ON: Electronics/sensor/load voltage 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)
Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
83