Eaton PXR-PCAM, Instruction Leaflet

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Printed in USA
Publication No. 

IL120009EN

 / VCG

March 2017

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Profibus DP-VO diagnostics

Until the PCAM is parameterized and configured by the Profibus 

master, a request for diagnostics by the master will result in the 

PCAM returning only the mandatory 6-byte Profibus diagnostics 

information. Once successfully parameterized and configured, the 

PCAM will append additional device-related diagnostics information 

to the mandatory Profibus diagnostics, as described by 

Table 10

.

Table 10.  DP-VO unit diagnostics definitions

byte

bits

Value

Description

7

08H

Header: device-related 

diagnostics, length = 8 bytes

8

7.0

81H

Type: status message

9

15..8

Slot

10

23..16

00H

Specifier

11

24

1

No communications with trip unit

25

1

Data object 1 invalid

26

1

Data object 2 invalid

27

1

Data object 3 invalid

28

1

Data object 4 invalid

29

1

Data object 5 invalid

30

1

Data object 6 invalid

31

1

Data object 7 invalid

12

32

1

Data object 8 invalid

33

1

Data object 9 invalid

34

1

Data object 10 invalid

35

1

Data object 11 invalid

36

1

Data object 12 invalid

37

1

Data object 13 invalid

38

1

Data object 14 invalid

39

1

Remote open/closed not enabled

13

40

1

EEPROM error alarm

41

1

RAM error alarm

42

1

Setpoints error alarm

43

1

Watchdog alarm

44

1

Check aux. switch alarm

45

1

Breaker mechanism fault

46

1

Breaker shunt trip problem

47

1

Operations count alarm

14

48

1

Earth fault alarm

49

1

Low power factor alarm

50

1

Total harmonic distortion alarm

51

1

Frequency out of bounds alarm

52

1

Historic trip occured

53

1

Breaker in maintenance mode