Led Signaling; Blink Code - WAGO I/O SYSTEM 750 750-833 Manual

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
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
• The third blink sequence (approx. 1 Hz) appears following a further pause.
WAGO-I/O-SYSTEM 750
Bus System
of blink impulses gives the fault code.
The number of blink pulses indicates the fault argument.
Programmable Field Bus Controller 750-833 • 109
LED Signaling
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