Programmable Field Bus Controller 750-833
•
109
LED Signaling
WAGO-I/O-SYSTEM 750
Bus System
3.11 LED Signaling
For the on-site diagnostics the coupler has several LEDs, which display the
operating status of the coupler or the complete node.
Fig. 3.10.2-14: Display element 750-833
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The upper four LEDs (RUN, BF, DIA, BUS) display the state of the
PROFIBUS communication.
The lower LED (I/O) displays the internal state of the complete node.
The LEDs A and C or B display the status of the supply voltage.
3.11.1 Blink Code
A blink code displays detailed fault messages. A fault is cyclically displayed
using up to 3 different blink sequences.
•
The first blink sequence (approx. 10 Hz) indicates the fault display.
•
After a pause a second blink sequence appears (approx. 1 Hz). The number
of blink impulses gives the
fault code
.
•
The third blink sequence (approx. 1 Hz) appears following a further pause.
The number of blink pulses indicates the
fault argument
.