110 • Fieldbus Controller
Fieldbus Controller 750-872/020-000
WAGO-I/O-SYSTEM
750
ETHERNET TCP/IP
“I/O”-LED is blinking
Test o.k.?
No
Yes
“I/O”-LED is shining
ready for operation
2nd break
1st break
“I/O” LED
1st flash sequence
(Introduction of the
error indication)
“I/O” LED
2nd flash sequence
Error code
(Number of flash cycles)
“I/O” LED
3rd flash sequence
Error argument
(Number of flash cycles)
Coupler/Controller starts up
Switching on
the power supply
Fig. 3.1-16:
Signalling of the LED for indication of the node status
g012111e
After clearing a fault, restart the controller by cycling the power.
Fault message of the 'I/O' LED
1
st
blink sequence: Start of the Fault message
2
nd
blink sequence: Fault code
3
rd
blink sequence: Fault argument
Fault code 1: " Hardware and configuration fault "
Fault argument
Fault description
Trouble shooting
1
Overflow of the internal buffer
memory for the inline code
Turn off the power supply of the
node, reduce number of I/O
modules and turn the power supply
on again. If the error still exists,
exchange the bus coupler.