Led Indication - WAGO -I/O-SYSTEM 750 Technical Description, Installation And Configuration

96 • PROFINET IO 750-340

LED Indication

3.1.9 LED Indication
For on-site diagnostics, the coupler has several LEDs that indicate the
operational status of the coupler or the entire node.
Fig. 3.1.9-9: Indicators 750-340
The upper four LEDs (LINK, BF, DIA, TxD/RxD) 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.
3.1.9.1 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
3.1.9.2 Fieldbus Status
The upper four LEDs signal the operating status of the PROFIBUS IO
communication.
PROFINET
LINK A
A
C
B
BF
B
D
DIA
24V 0V
TxD/RxD
I/O
+ +
The number of light pulses indicates the Error Code.
number of light pulses indicates the Error Argument.
g034002x
WAGO-I/O-SYSTEM 750
PROFINET IO