Siemens SIMATIC ET 200AL Manual - Page 20

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Siemens SIMATIC ET 200AL Manual
Meaning of the LEDs
The following tables set out the meaning of the status and error displays. Remedial measures
for diagnostic reports can be found in chapter Diagnostics alarms (Page 20).
DIAG LED
Table 5- 1
LED channel status
Table 5- 2
LED channel status
PWR LED
Table 5- 3
IO-Link digital input/digital output module DIQ 16x24VDC/0,5A 8xM12 (6ES7143-5AH00-0BL0)
Equipment Manual, 08/2021, A5E47926885-AB
Error display of the DIAG LED
DIAG LED
Meaning
No supply voltage 1L+
Off
•
No data exchange with the IO-Link Master (e.g. wire break)
Flashes
•
Firmware is loading
Module is currently exchanging data with the IO-Link master and no module
diagnostics
On
Module is currently exchanging data with the IO-Link master and module
diagnostics
Flashes
LED channel status display
Meaning
Process signal = 0
Off
Process signal = 1
On
Status display of the PWR LED
PWR LED
Meaning
Load voltage 2L+ is missing or too low
Off
Load voltage 2L+ present
On
Interrupts/diagnostic alarms
5.1 Status and error displays
19