Feldbus-Koppler/-Controller • 99
Fieldbus Controller 750-806
3.2.10LED Display
The Controller possesses several LEDs for on site display of the Controller operating status or the complete node.
DeviceNet |
01 |
02 |
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OVERFL |
A |
C |
C |
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MS |
B |
A |
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RUN |
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D |
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BUS OFF |
24V |
0V |
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NS |
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CONNECT |
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I/O |
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USR |
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Fig. 3-34: Display elements 750-806 |
g080602x |
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The module status (MS) and the network status (NS) can be displayed by the top 4 LED’s. They react as described in the following tables.
Module status (MS)
OVERFL |
RUN |
State of device |
Meaning |
(red) |
(green) |
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off |
off |
no power |
No power supply to the device. |
off |
on |
device operational |
The device operates correctly. |
off |
blinking |
device in standby |
The device needs to be configured or has been partly |
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configured. |
blinking |
off |
minor fault |
A minor fault has occurred. It exists a diagnostics. |
on |
off |
unrecoverable fault |
The device is defective, needs to be serviced or |
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replaced. |
blinking |
blinking |
device self testing |
The device performs a built-in check. |
Table 3-3: Fault and status displays: MS |
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Network status (NS) |
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BUSOFF |
CONNECT |
State of device |
Meaning |
(red) |
(green) |
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off |
off |
not powered, not online |
No power supply to the device / fieldbus supply / |
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DeviceNet cable not connected and „Duplicate MAC |
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ID detection“ is not yet completed. |
off |
blinking |
online, not connected |
The device operates correctly at the fieldbus. How- |
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ever, it has not yet been integrated by the scanner. |
off |
on |
link ok online, connec- |
The device operates correctly at the fieldbus. At |
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ted |
least one connection to another device has been |
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established. |
blinking |
off |
connection time out |
A minor fault has occurred (e.g. EPR is unequal 0 |
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during a polling connection, slave is not polled any |
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longer). |
on |
off |
critical link failure |
The device has detected a fault (duplicated MAC ID |
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check error). It is unable to perform any more func- |
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tions in the network. |
Table 3-4: Fault and status displays: NS
WAGO-I/O-SYSTEM 750
DeviceNet
100 • Feldbus Coupler/Controller
Fieldbus Controller 750-806
3.2.10.1.1Node Status
LED |
Color |
Meaning |
IO |
red /green |
The 'I/O' LED indicates the node operation and signals faults occur- |
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/ orange |
ring. |
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The Controller starts after switching on the supply voltage. The "I/O" LED flashes red. Following an error free start up the "I/O" LED changes to green steady light.
In the case of a fault the "I/O" LED continues blinking red. The fault is cyclically displayed with the blink code.
Versorgungsspannung
einschalten
Koppler-Hochlauf
“I/O”-LED blinkt
Fehler |
Ja |
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Nein |
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“I/O”-LED
1. Blinksequenz
(leitet opt. Anzeige eines Fehlers ein)
1. Pause
“I/O”-LED
2. Blinksequenz
Fehlercode (Anzahl Blinkimpulse)
2. Pause
“I/O”-LED
“I/O”-LED an 3. Blinksequenz
Fehlerargument (Anz. Blinkimp.)
Feldbusstart |
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Fig. 3-35: Signalling the LED's node status |
g012111d |
After overcoming a fault, restart the Controller by cycling the power.
I/O |
Meaning |
green |
Data cycle on the internal bus |
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off |
No data cycle on the internal bus |
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red |
Coupler hardware defective |
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red |
When starting: internal bus is initialized |
blinks |
During operation: general internal bus fault |
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red |
Fault message during internal bus reset and internal fault: |
blinks cyclically |
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orange |
MAC-ID is changed via SW and is different to the DIP switch setting |
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WAGO-I/O-SYSTEM 750
DeviceNet