Festo Контроллер позиционирования CPX-CMAX - Manual (Page 168)

4. Faults and diagnostics
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Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
Parameter Description
Active fault level
PNU 225 In this way the FCT can display the current status of the CMAX in accordĆ
ance with the fault level (section 4.2.3). The most serious current fault is
always responsible for the current fault level.
Bit−encoded fault
status PNU 227 The bit−encoded error status allows the FCT to indicate the exact status
of an active fault message. The coding is identical to the coding of the
PNU 203 support information. For the description, see section 4.3.3.
Tab. 4/5: Parameters of the diagnostic memory
4.3.2 Diagnostic memory
The diagnostic memory contains the diagnostic messages of
the last 100 events that occurred. The memory is backed up
in the event of a power failure. If the buffer is full, the oldest
element will be overwritten. When reading, the newest entry
is read first (LIFO principle).
Number (subindex) Diagnostic memory entry
1 Newest (last) diagnostic message.
2 Last but one diagnostic message.
... ...
100 Oldest diagnostic message.
Tab. 4/6: Structure of the diagnostic memory