Wago 750-333 PROFIBUS DP/V1 FIELD BUSCOUPLER 12 MBaud 750-333 Datenbogen

58  •

2001-02-27

see EN 50170

The PROFIBUS-DP master address is located in byte 3 of the slave diagnosis
and includes the address of the master which has parameterised the station and
which has read and write access.

The manufacturer’s identification is located in byte 4 and 5 and includes a 16
bit code, which serves for the identification of the device or the device class.

The identification based diagnosis comprises of a bit field, which contains one
bit of information for each connected module. The individual bit provides evi-
dence about the current operating status. A 0 means no fault, a 1 indicates a
faulty module condition. The bus coupler can be equipped with up to 63 mod-
ules, so that the identification based diagnosis including the header covers 9
bytes from byte 6 to byte 14.

0

1

0

0

1

0

0

1

Header  byte
(9 byte identification based diagnosis
incl. header)

7

6

5

4

3

2

1

0

15 14 13 12 11 10 9

8

23 22 21 20 19 18 17 16 Diagnosis allocation to

31 30 29 28 27 26 25 24 I/O module n (n=1 ... 63)

39 38 37 36 35 34 33 32 Coupler (n=0)

47 46 45 44 43 42 41 40

55 54 53 52 51 50 49 48

63 62 61 60 59 58 57 56