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VEGA MINITRAC 31 Profibus PA User Manual

Page 87

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87

11 Supplement

MINITRAC 31 • Profibus PA

43836-EN-131119

Byte n

Byte n+1

Bit

7

VZ

Exponent

Bit

6
2

Bit

5
2

Bit

4
2

Bit

3
2

Bit

2
2

Bit

1
2

Bit

0
2

Bit

7
2

Bit

6
2

Bit

5
2

Bit

4
2

Bit

3
2

Bit

2
2

Bit

1
2

Bit

0
2

Sign

Bit

Significant

7

6

5

4

3

2

1

0

-1

-2

-3

-4

-5

-6

-7

Byte n+2

Byte n+3

Bit

7
2

Significant

Bit

6
2

Bit

5
2

Bit

4
2

Bit

3
2

Bit

2
2

Bit

1
2

Bit

0
2

Bit

7
2

Bit

6
2

Bit

5
2

Bit

4
2

Bit

3
2

Bit

2
2

Bit

1
2

Bit

0
2

Significant

-9

-10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21 -22 -23

-8

Value = (-1)

VZ

2

(Exponent - 127)

(1 + Significant)

Fig. 27: Data format of the measured value

Coding of the status byte associated with the PA output value

You can find further information for the coding of the status byte in the Device Description 3.02 on

www.profibus.com.

Status code

Description according to

Profibus standard

Fault description

0 x 24

bad

(F) Failure

0 x 3C

bad

(C) Function Check

0 x 78

uncertain

(S) Out of Spec

0 x A4

good

(M) Maintenance required

0 x A8

good

(M) Maintenance demanded

0 x 00

good

(G) Good

Mapping - User error codes

Priority

Description according to

Profibus standard

User Error Codes

NE-107 status

31

Hardware Failure

40, 41

FAILURE

30

Memory Failure

34, 35, 36, 37

FAILURE

29

Software Failure

80

FAILURE

28

Parameterization corrupt

72

FAILURE

27

Undefined 27

-

-

26

Undefined 26

-

-

25

Parameterization Error

16, 17, 25, 52, 53, 57, 66,

117, 120

FAILURE

24

Conflict in MGC

121, 122, 141

FAILURE

23

Communication Error in

MGC

8

FAILURE

22

MGC-Slave reports Error

38

FAILURE

21

Undefined 21

-

-

20

Undefined 20

-

-

19

Undefined 19

-

-

18

Detector Temperature

critical

125

OUT_OF_SPEC