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6.3.7 Diagnosis
The diagnosis for the safety-related application process is almost the same as for the non-safety-
related application process, see Chapter “Warnings, errors, diagnosis” from Page 70. Both application
processes initiate their own diagnostic alarm, each using their own alarm channel.
Errors or warnings, whose cause affects both application processes, are therefore reported once via
the non-safety-related alarm channel and once via the safety-related alarm channel.
The measuring system always transmits diagnostic information as a channel-related diagnosis to the
F Host.
Up to four application relationships can be established if the measuring system operates in the
“shared device mode”. For each of these application relationships, a separate alarm channel is
supported for each F Host in this case, see also Chapter “Shared Device applications” on Page 138.
A number of diagnostic mechanisms are available for monitoring the measuring system functions. The
following table shows an overview of the various options:
Acyclic diagnosis parameters
– PNU 65100, Subindex 2 “Error”
Channel-related control via the alarm channel
Evaluation of status bits in the
F status word 1 S_ZSW1_ENC
Chapter 4.2, Page 30
Chapter 9.1, Page 140
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