Siemens SIMATIC ET 200AL System Manual page 764

Diagnostics alarms
5.1 Status and error displays
LED displays
The following figure shows the LED display of the CM 4xIO-Link 4xM12 communication
module.
①
②
③
④
Figure 5-1
Meaning of the LEDs
The following tables set out the meaning of the status and error displays. Corrective
measures for diagnostics alarms can be found in the section Diagnostics alarms (Page 32).
CM 4xIO-Link 4xM12 (6ES7147-5JD00-0BA0)
Equipment Manual, 04/2021, A5E32352322-AE
Diagnostics (DIAG)
Port status / IO-Link status (Cn)
Load voltage 2L+ (PWR)
Channel status in SIO mode (Qn)
LED displays
(green/red)
(green)
(green)
(green)
5
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