Festo CPX-FB38, Электронное руководство

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3. Diagnosis
3−15
Festo P.BE−CPX−FB38−EN en 0804NH
3.4 Diagnostics via the I/O diagnostic interface (STI)
The CPX terminal provides 16 I/O status bits (System table
interface, STI) if you activate this function using DIL switches
(see section 1.2.2).
Detailed diagnostic information can be accessed via the I/O
diagnostic interface. You can ascertain this exactly, e.g. by
noting on which module and channel a fault has occurred.
16input bits and 16 output bits, via which all diagnostic data
can be read, are available for accessing the system diagnosis.
If the I/O diagnostic interface is active, it will occupy the first
16 inputs and outputs in the address range (see Tab.1/2 and
Tab.2/1).
Please note
Note the instructions on addressing and configuration in
the sections 2.3 and 2.4.
The following table provides an overview of the available
diagnostic information.
Diagnostic data Contents/description
Global diagnostic data General overview of faults
Module diagnostic data Detail diagnosis per module
Status of diagnostic
memory Number of entries in the diagnostic
memory
Operation mode
Diagnostic memory data Long−term memory
Detail diagnosis + relative time
stamp per fault event
Tab.3/11: Overview of diagnosis data or I/O diagnostic
interface (optional)