I/O Diagnostic Interface And Diagnostic Memory - Festo CPX Series Manual

4. Faults and diagnostics

4.5.2 I/O diagnostic interface and diagnostic memory

Diagnostic memory data (10 bytes per entry, max. 40 entries)
Byte
Designation
1 Days [day]
2 Hours [h]
3 Minutes [m]
4 Seconds [s]
5 Milliseconds [ms]
6 Module code
7 Module position
[Pos]
8 Channel number
9 Error number [FN]
10 Following channels
1)
d (diagnostic event) [NB] = 0 ... 39 ; most current diagnostic event = 0
Tab. 4/19: Diagnostic memory data of the CMAX
4−48
A range of different diagnostic information is accessible via
the I/O diagnostic interface and the diagnostic memory of the
CPX terminal.
Diagnostic memory data
(CPX−MMI and I/O diagnostic interface)
The representation of diagnostic messages of the CMAX in
the diagnostic memory of the CPX terminal occurs as shown
in Tab. 4/19.
Description
Time information for the reported
error, measured from the point when
the power supply was switched on
(CPX standard).
Module code of the CMAX: 176
Module code of the CPX module that
reported the error.
Bit 7 6 5 ... 0 Description
1 0 0 ... 0 Error in
I−channel 1
CPX error number
(see section 4.2.2)
Always 0 for the CMAX
Instructions on diagnostics with the I/O diagnostic interface
can be found in the CPX system manual.
Function no.
Value 3488 + n
0 ... 255 n = 10 * d + 0
0 ... 23
0 ... 59
0 ... 59
0 ... 999
(128...227)
0 ... 255 n = 10 * d + 5
0 ... 47 n = 10 * d + 6
128 n = 10 * d + 7
(0 ... 255)
90 ... 99 n = 10 * d + 8
(0 ... 255)
0 (0 ... 63) n = 10 * d + 9
Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH
1)