96
•
PROFINET IO 750-340
LED
Indication
WAGO-I/O-SYSTEM
750
PROFINET IO
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.
24V 0V
+
+
LINK
BF
DIA
TxD/RxD
I/O
PROFINET
C
D
B
A
A
B
Fig. 3.1.9-9: Indicators 750-340
g034002x
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).
The number of light pulses indicates the
Error Code
.
•
After another break, the third blinking sequence starts (approx. 1 Hz). The
number of light pulses indicates the
Error Argument
.
3.1.9.2 Fieldbus
Status
The upper four LEDs signal the operating status of the PROFIBUS IO
communication.