Led Indication; Blink Code - WAGO 750-370 Manual

3.1.11 LED Indication

For on-site diagnostics, the coupler has several LEDs that indicate the
operational status of the coupler or the entire node.
PROFINET IO
Fig. 3.1.11-14: Indicates 750-370
The upper four LEDs (LNK/ACT 1, LNK/ACT 2, BF, DIA) indicate the state
of the PROFINET IO communication.
The lower LED (I/O) displays the internal state of the complete node.
The LEDs A and B display the status of the supply voltage.
3.1.11.1

Blink Code

Detailed error messages are indicated by means of blinking codes. An error is
indicated cyclically by up to 3 blinking sequences.
• The error display starts with the first blinking sequence (approx. 10 Hz).
• After a short break, the second blinking sequence starts (approx. 1 Hz).
• After another break, the third blinking sequence starts (approx. 1 Hz). The
WAGO-I/O-SYSTEM 750
PROFINET IO
LINK
A
ACT1
A
C
LINK
B
ACT2 B
D
BF
DIA
I/O
The number of light pulses indicates the Error Code.
number of light pulses indicates the Error Argument.
PROFINET IO 750-370
LED Indication
• 117
g037002x