Interrupts/diagnostic messages   
6.3 Diagnostic messages 
  Analog input module F-AI 4xI 0(4)..20mA 2-/4-wire HF (6ES7136-6AA00-0CA1) 
58  Manual, 08/2018, A5E41448857-AB 
 
Diagnostic messages 
Diagnostic messages 
Module faults are indicated as diagnostics (module status). 
Once the fault is eliminated, the F-module must be reintegrated in the safety program. For 
additional information on passivation and reintegration of F-I/O, refer to the SIMATIC Safety 
– Configuring and Programming 
(http://support.automation.siemens.com/WW/view/en/54110126) manual. 
Table 6- 5  Diagnostic messages of the F-AI 4xI 0(4)..20mA 2-/4-wire HF  
Overtemperature  5
H
  The F-module measured an excessively 
high temperature. 
Operate the F-module within the speci-
fied temperature range (see Technical 
specifications (Page 64)) 
Once the temperature has been re-
duced and returns to the specified 
range, the F-module must be removed 
and inserted or the power switched 
Wire break  6
H
  Possible causes: 
•  A cable to the sensor is broken. 
•  Fault at the external circuit 
•  Defective sensor 
•  Wrong sensor type set in the parame-
ters 
•  Input channel not used 
•  Measurement resistance too high 
Check the possible causes and elimi-
nate the fault. 
High limit exceeded  7
H
  The measured value exceeds the meas-
Check the interaction between the 
Low limit violated  8
H
  The measured input value is below a 
Check the interaction between the 
Parameter error  10
H
  Parameter assignment errors include: 
•  The F-module cannot use the param-
eters (unknown, invalid combination, 
etc.). 
•  The F-module parameters have not 
been configured. 
Correct the parameter assignment. 
Supply voltage missing  11
H
  Missing or insufficient supply voltage L+ 
•  Check the supply voltage L+ on the 
BaseUnit. 
•  Check the BaseUnit.