Wago 750-333 PROFIBUS DP/V1 FIELD BUSCOUPLER 12 MBaud 750-333 Datenbogen
Produktcode
750-333
62 •
Fieldbus coupler / controller
Fieldbus coupler 750-333
Fieldbus coupler 750-333
D R A F T
WAGO-I/O-SYSTEM 750
2001-02-27
PROFIBUS
3.1.9.6
Channel based diagnosis
The channel based diagnosis is intended for detailing the identification based
diagnosis. A structure is appended to each device status per faulty slot which
comprises of a header byte, a byte, the channel type supplying the channel
number and a third byte, which describes the fault type and the channel organi-
sation.
diagnosis. A structure is appended to each device status per faulty slot which
comprises of a header byte, a byte, the channel type supplying the channel
number and a third byte, which describes the fault type and the channel organi-
sation.
Byte
Information
Meaning
22
1
0
x
x
x
x
x
x
Header channel based diagnosis
(x: 1 to 63, slots of the module)
(x: 1 to 63, slots of the module)
23
a
a
x
x
x
x
x
x
Channel type (a) and
channel number x: 0 to 3
channel number x: 0 to 3
0
1
Input channel
1
0
Output channel
1
1
Input / output channel
24
t
t
t
x
x
x
x
x
Channel type (t) and
fault type (x)
fault type (x)
0
0
0
No allocation
0
0
1
1 Bit
0
1
0
2 Bit
0
1
1
4 Bit
1
0
0
1 Byte
1
0
1
1 Word
1
1
0
2 Words
25-27
Next channel based diagnosis message (as byte 22 – 24)
28-30
Next channel based diagnosis message (as byte 22 – 24)
...
...
61-63
Last displayable channel based diagnosis message (such as byte 22 – 24)