Table 58: Blink Code Table For The I/O Led Signaling, Error Code 4; Table 59: Blink Code Table For The I/O Led Signaling, Error Code 5; 750-370 Profinet Io Fieldbus Coupler - WAGO 750-370 Manual

WAGO-I/O-System 750

750-370 PROFINET IO Fieldbus Coupler

Table 58: Blink Code Table for the I/O LED Signaling, Error Code 4

Error code 4: "Physical error, internal bus"
Error
Argument
-
n*
* 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 59: Blink Code Table for the I/O LED Signaling, Error Code 5

Error code 5: "Initialization error, internal bus"
Error
Argument
n*
* 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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Manual
Version 2.0.0
Error Description Solution
1. Turn off the power supply to the node.
2. Plug the 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
6. Plug the end module into the middle of the node.
7. Turn the power supply on again.
8. - LED continues to flash? -
Internal bus data
transmission error or
interruption of the
internal data bus at
the fieldbus coupler
9. Turn the power supply on again.
10. Repeat the procedure described in step 6 while halving
11. Replace the faulty I/O module.
12. If there is only one I/O module on the fieldbus coupler
13. If the LED continues to flash, the fieldbus coupler is
Interruption of the
internal data bus 1. Turn off the power supply to the node.
behind the nth I/O 2. Replace the (n+1) I/O module containing process data.
module with process 3. Turn the power supply on.
data
Error Description Solution
Error in register
1. Turn off the power supply to the node.
communication
2. Replace the (n+1) I/O module containing process data.
during internal bus
3. Turn the power supply on.
initialization
supply.
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).
the step size until the faulty I/O module is detected.
and the LED is flashing, either the I/O module or fieldbus
coupler is defective. Replace the I/O module with a
pretested, properly functioning I/O module. If the LED
no longer flashes, the replaced I/O module was faulty.
Replace this I/O module.
faulty. Replace the fieldbus coupler.
Diagnostics 123