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2 i/o diagnostic interface and diagnostic memory, I/o diagnostic interface and diagnostic memory – Festo Контроллер позиционирования CPX-CMAX User Manual

Page 184

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4. Faults and diagnostics

4−48

Festo P.BE−CPX−CMA X−CONTROL−EN en 0908NH

4.5.2

I/O diagnostic interface and diagnostic memory

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.

Diagnostic memory data (10 bytes per entry, max. 40 entries)

Function no.

1)

Byte

Designation

Description

Value

3488 + n

1
2
3
4
5

Days [day]
Hours [h]
Minutes [m]
Seconds [s]
Milliseconds [ms]

Time information for the reported
error, measured from the point when
the power supply was switched on
(CPX standard).

0 ... 255
0 ... 23
0 ... 59
0 ... 59
0 ... 999
(128...227)

n = 10 * d + 0

6

Module code

Module code of the CMAX: 176

0 ... 255

n = 10 * d + 5

7

Module position
[Pos]

Module code of the CPX module that
reported the error.

0 ... 47

n = 10 * d + 6

8

Channel number

Bit 7

6

5 ... 0

Description

1

0

0 ... 0

Error in
I−channel 1

128
(0 ... 255)

n = 10 * d + 7

9

Error number [FN]

CPX error number
(see section 4.2.2)

90 ... 99
(0 ... 255)

n = 10 * d + 8

10

Following channels

Always 0 for the CMAX

0 (0 ... 63)

n = 10 * d + 9

1)

d (diagnostic event) [NB] = 0 ... 39 ; most current diagnostic event = 0

Tab. 4/19: Diagnostic memory data of the CMAX

Instructions on diagnostics with the I/O diagnostic interface
can be found in the CPX system manual.