Analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF (6ES7136-6AA00-0CA1) 
Manual, 08/2018, A5E41448857-AB 
53 
  Interrupts/diagnostic messages 
 
Status and error display 
LED display 
The following figure shows the LED display of the F-AI 4xI 0(4)..20mA 2-/4-wire HF. 
 
Figure 6-1  LED display 
Meaning of the LED displays 
The following tables show the meaning of the status and error displays. Remedies for 
diagnostics alarms can be found in section Diagnostic messages (Page 58). 
 
The DIAG LED and the channel status and channel fault LEDs of the outputs are not 
designed as safety-related LEDs and therefore may not be evaluated for safety-related 
activities.