102
• Feldbus Coupler/Controller
Fieldbus Controller 750-806
WAGO-I/O-SYSTEM 750
DeviceNet
Fault code 5: Register communication fault
n*
Internal bus fault during register communication with the I/O mod-
ule n
Fault code 7: I/O module not supported
n*
I/O module not supported at position n
* The number of blink pulses (n) indicates the position of the I/O module. I/O modules
without data are not counted (i.e. supply module without diagnosis)
Example: the 13
th
I/O module is removed.
1.
The "I/O" LED generates a fault display with the first blink sequence (approx. 10 Hz).
2.
The first pause is followed by the second blink sequence (approx. 1 Hz). The "I/O"
LED blinks four times and thus signals the fault code 4 (internal bus data fault).
3.
The third blink sequence follows the second pause. The "I/O" LED blinks twelve
times. The fault argument 12 means that the internal bus is interrupted after the 12
th
I/O module.
3.2.10.2.2
Supply Voltage Status
LED
Color
Meaning
A
green
Status of the operating voltage – system
C
green
Status of the operating voltage – power jumper contacts
There are two green LED’s in the Coupler supply section to display the supply
voltage. The left LED (A) indicates the 24 V supply for the Coupler. The right
hand LED (C) signals the supply to the field side, i.e. the power jumper con-
tacts.
