WAGO-I/O-SYSTEM 750 XTR Diagnostics 135
750-352/040-000 FC ETHERNET G3 XTR
Manual
Version 1.3.0
Table 50: Blink Code Table for the 'I/O' LED Signaling, Error Code 4
Error code 4: "Physical error, internal bus"
-
Local bus data
transmission error or
interruption of the
local bus at the
fieldbus coupler
1. Turn off the power supply to the node.
2. Plug in an end module behind the fieldbus coupler.
3. Turn the power supply on.
4. Observe the error argument signaled.
--- Is no error argument indicated by the I/O LED? ---
5. Replace the fieldbus coupler.
--- Is an error argument indicated by the I/O LED? ---
5. Identify the faulty I/O module by turning off the power
supply.
6. Plug the end module into the middle of the node.
7. Turn the power supply on again.
8. --- LED continues to flash? ---
Turn off the power and plug the end module into the
middle of the first half of the node (toward the fieldbus
coupler).
--- LED not flashing? ---
Turn off the power and plug the end module into the
middle of the second half of the node (away from the
fieldbus coupler).
9. Turn the power supply on again.
10. Repeat the procedure described in step 6 while halving
the step size until the faulty I/O module is detected.
11. Replace the faulty I/O module.
12. If there is only one I/O module on the fieldbus coupler and
the LED is flashing, either the I/O module or fieldbus
coupler is defective. Replace the defective component.
n*
local bus behind the
nth bus module with
1. Turn off the power supply to the node.
2. Replace the (n+1) I/O module containing process data.
3. Turn the power supply on.
* The number of light pulses (n) indicates the position of the I/O module.
I/O modules without data are not counted (e.g., supply modules without diagnostics)
Table 51: Blink Code Table for the 'I/O' LED Signaling, Error Code 5
Error code 5: "Initialization error, internal bus"
n*
communication
during local bus
1. Turn off the power supply to the node.
2. Replace the (n+1) I/O module containing process data.
3. Turn the power supply on.
* The number of light pulses (n) indicates the position of the I/O module.
I/O modules without data are not counted (e.g., supply modules without diagnostics)
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