Siemens SIMATIC ET 200eco PN - Diagnostics by means of LED display

Interrupt, error, and system messages
7.3 Diagnostics by means of LED display
ET 200eco PN
Operating Instructions, 08/2016, A5E01250250-AJ
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7.3
Diagnostics by means of LED display
7.3.1
Diagnostics using the LED display on the I/O devices
LED display
The figure below shows the position and arrangement of the LED display on the
ET 200eco PN I/O devices:
①
SF/MT: (red/yellow LED)
②
BF: Bus monitoring (red LED)
③
ON: Electronic/sensor/load supply 1L+ non-switched (green LED)
④
DC 24V: Load voltage supply 2L+ switched (green LED), only for digital output device
⑤
P1 LK: Port1 Link (green LED)
⑥
P2 LK: Port2 Link (green LED)
⑦
Channel status, channel fault (green/red LED)