Материал: m083300e
62 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.9.6Channel 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 organisation.
Byte |
Information |
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Meaning |
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22 |
1 |
0 |
x |
x |
x |
x |
x |
x |
Header channel based diagnosis |
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(x: 1 to 63, slots of the module) |
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23 |
a |
a |
x |
x |
x |
x |
x |
x |
Channel type (a) and |
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channel number x: 0 to 3 |
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0 |
1 |
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Input channel |
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1 |
0 |
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Output channel |
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1 |
1 |
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Input / output channel |
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24 |
t |
t |
t |
x |
x |
x |
x |
x |
Channel type (t) and |
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fault type (x) |
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0 |
0 |
0 |
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No allocation |
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0 |
0 |
1 |
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1 Bit |
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0 |
1 |
0 |
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2 Bit |
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0 |
1 |
1 |
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4 Bit |
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1 |
0 |
0 |
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1 Byte |
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1 |
0 |
1 |
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1 Word |
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1 |
1 |
0 |
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2 Words |
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25-27 |
Next channel based diagnosis message (as byte 22 – 24) |
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28-30 |
Next channel based diagnosis message (as byte 22 – 24) |
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... |
... |
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61-63 |
Last displayable channel based diagnosis message (such as byte 22 – 24) |
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D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |
Fieldbus coupler / controller |
• 63 |
Fieldbus coupler 750-333 |
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3.1.9.6.1Fault types of I/O modules with diagnostic capability
The fault types refer to standardised types.
Fault |
Meaning |
type |
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0 |
Not specified |
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1 |
Short circuit |
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2 |
Low voltage |
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3 |
High voltage |
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4 |
Overload |
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5 |
Over temperature |
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6 |
Line break |
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7 |
Upper limit value exceeded |
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8 |
Lower limit value exceeded |
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9 |
Fault |
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10 ... 15 |
Reserved |
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16 ... 31 |
Manufacturer specific |
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17 |
Field voltage fault |
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18 |
Fuse fault |
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19 |
Buffer overflow |
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20 |
Check sum fault |
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21 |
Parity fault |
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22 |
Receive Timeout (partner) |
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23 |
Receive Timeout |
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26 |
SSI_IN fault |
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27 |
SSI FRAME fault |
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31 |
I/O module fault |
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WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
64 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.9.6.2I/O modules fault cases
Article number |
Channel |
Fault type |
Meaning |
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type |
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750-418, 750-419, |
'001 |
0.1001' |
Fault (line break, overload or short |
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750-507, 750-522 |
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circuit) |
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750-506 |
'001 |
0.0001' |
Short circuit |
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0.0010' |
Lower voltage |
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0.0110' |
Line break |
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0.1001' |
Error |
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750-461, 750-469 |
'101 |
0.0110' |
Line break |
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0.1000' |
Lower limit value gone below |
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1.0000' |
Parameterisation fault |
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1.1111' |
I/O module fault |
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750-462, 750-465, |
'101 |
0.0111' |
Lower limit value gone below |
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750-466, 750-472, |
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0.1000' |
Upper limit value exceeded |
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750-474, 750-479, |
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1.0000' |
Parameterisation fault |
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750-480 |
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1.1111' |
I/O module fault |
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750-610, 750-611, |
'001 |
1.0001' |
Field voltage fault |
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1.0010' |
Fuse fault |
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750-630 |
'110 |
1.1010' |
SSI_IN fault (external fault) |
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1.1011' |
SSI FRAME fault |
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1.0000' |
Parameterisation fault |
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1.1111' |
I/O module fault |
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750-635, 750-637 |
'110 |
0.1001' |
Error |
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1.0000' |
Parameterisation fault |
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1.1111' |
I/O module fault |
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750-650, 750-651, |
'110 |
0.1001' |
Buffer overflow |
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750-653, 750-654 |
('000) |
1.0000' |
Parameterisation fault |
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1.1111' |
I/O module fault |
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D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |
Fieldbus coupler / controller |
• 65 |
Fieldbus coupler 750-333 |
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3.1.10LED signalling
The coupler possesses several LED’s for on site signalling of the coupler operating status or the complete node
PROFIBUS |
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RUN |
A |
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C |
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BF |
B |
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D |
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DIA |
24V |
0V |
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BUS |
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I/O |
+ |
+ |
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Fig. 3-10: Display elements 750-333 |
g012106x |
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3.1.10.1Blink code
Detailed fault messages are displayed with the aid of a blink code. A fault is cyclically displayed with up to 3 blink sequences.
•The first blink sequence (approx. 10 Hz) starts the fault display.
•The second blink sequence (approx. 1 Hz) following a pause. The number of blink pulses indicates the fault code.
•The third blink sequence (approx. 1 Hz) follows after a further pause. The number of blink pulses indicates the fault argument.
WAGO-I/O-SYSTEM 750 |
D R A F T |
PROFIBUS |
2001-02-27 |
66 • Fieldbus coupler / controller
Fieldbus coupler 750-333
3.1.10.2Fieldbus status
The upper four LED´s signal the operating conditions of the PROFIBUS communication.
LED |
Colour |
Meaning |
RUN |
green |
The 'RUN' LED indicates to the user if the fieldbus coupler is per- |
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fectly initialised. |
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BF |
red |
The 'BF' LED indicates that the communication functions via the |
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PROFIBUS. |
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DIA |
red |
The 'DIA' LED indicates an external diagnosis. |
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BUS |
red |
The 'BUS' LED signals a projecting fault. |
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RUN |
BF |
DIA |
BUS |
Meaning |
off |
off |
off |
off |
No operating voltage to the coupler (status LED of |
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the bus coupler supply does not light up) or a |
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hardware fault is present. |
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on |
on |
* |
off |
PROFIBUS interface started, baud rate was not yet |
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recognised. |
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on |
blinks |
* |
off |
Baud rate recognised, station not yet parameterised |
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and configured. |
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on |
blinks |
on |
blinks |
Slave was incorrectly projected. |
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cycli- |
Fault message via blink code |
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cally |
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on |
off |
* |
off |
The coupler is exchanging data. |
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on |
* |
on |
* |
The coupler signals an existing diagnosis. |
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* Not relevant |
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D R A F T |
WAGO-I/O-SYSTEM 750 |
2001-02-27 |
PROFIBUS |