Error Diagnostics - Siemens SIMATIC KP8 Operating Instructions Manual

Determining passivation
If you want to determine if the HMI device is passive or not, address the "PASS_OUT"
variable of the F-I/O. The variable can be assigned the following values:
● 0 = HMI device not passive
● 1 = HMI device passive
Reintegrating KP8F
After passivation of the HMI device, the fault must be diagnosed and rectified. Afterwards,
the HMI device can be reintegrated.
7.3

Error diagnostics

Diagnostic functions
Diagnostic functions , in other words displays and messages, are not critical to safety and
therefore are not designed to be safety-related functions. They are therefore not tested
internally.
Diagnostic function the HMI device
The fail-safe HMI device includes a non-configurable diagnostic function. The diagnostics
are always activated and are automatically made available by the HMI device in STEP 7 and
passed on to the controller in the event of a fault.
The diagnostics function passes the following diagnostics information to the controller:
● Communication error
● Configuration error
Reading diagnostic information
If you wish to locate the cause of an error, open the module diagnostics in STEP 7. You can
find detailed information in the online help for STEP 7.
The following table shows the diagnostic functions of the HMI device. The diagnostic
functions are assigned either to one channel or to the entire module.
KP8, KP8F
Operating Instructions, 10/2010, A5E03284305-01
The communication between the HMI device as the IO-device and the controller as the
IO-controller is disrupted.
Error in the PROFIsafe configuration
Operating KP8F in a fail-safe manner
7.3 Error diagnostics
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