Node Status - Blink Code From The 'I/O' Led; Signalling Of The Led For Indication Of The Node Status - WAGO 750 Series Manual

110 • Fieldbus Controller 750-841
LED Display
3.1.9.2 Node Status – Blink code from the 'I/O' LED
LED
IO
The coupler 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.
Detailed fault messages are displayed with the aid of a blink code. A fault is
cyclically displayed with up to 3 blink sequences.
Fig. 3-16: Signalling of the LED for indication of the node status
After clearing a fault, restart the coupler by cycling the power.
Color Meaning
red /green The 'I/O' LED indicates the node operation and signals faults
/orange occurring.
• 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.
Switching on
the power supply
Coupler/Controller starts up
"I/O"-LED is blinking
No
Test o.k.?
Yes
"I/O"-LED is shining
ready for operation
"I/O" LED
1st flash sequence
(Introduction of the
error indication)
1st break
"I/O" LED
2nd flash sequence
Error code
(Number of flash cycles)
2nd break
"I/O" LED
3rd flash sequence
Error argument
(Number of flash cycles)
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