Table 62: Blink Code Table For The I/O Led Signaling, Error Code 4; Table 63: Blink Code Table For The I/O Led Signaling, Error Code 5 - WAGO -I/O-SYSTEM 750 Manual

202 Diagnostics

Table 62: 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 63: 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)
Manual
1.5.0
750-882 Media Redundancy ETHERNET Controller
Error Description Solution
1.
2.
3.
4.
- Is no error argument indicated by the I/O LED? -
5.
- Is an error argument indicated by the I/O LED? -
6.
7.
Local bus data 8.
transmission error or 9.
interruption of the
local bus at the
fieldbus controller
10. Turn the power supply on again.
11. Repeat the procedure described in step 6 while halving
12. Replace the faulty I/O module.
13. If there is only one I/O module on the fieldbus controller
14. Replace the defective component.
Interruption of the
local bus behind the
nth bus module with
process data, the 1.
maximum supported 2.
number is reached, 3.
the following
modules are no
longer supported.
Error Description Solution
Error in register
1.
communication
2.
during local bus
3.
initialization
Turn off the power supply to the node.
Plug in an end module behind the fieldbus controller.
Turn the power supply on.
Observe the error argument signaled.
Replace the fieldbus controller.
Identify the faulty I/O module by turning off the power
supply.
Plug the end module into the middle of the node.
Turn the power supply on again.
- 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
controller).
- 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 controller).
the step size until the faulty I/O module is detected.
and the LED is flashing, either the I/O module or fieldbus
controller is defective.
Turn off the power supply of the node.
Reduce number of I/O modules.
Turn the power supply on.
Turn off the power supply to the node.
Replace the (n+1) I/O module containing process data.
Turn the power supply on.
WAGO-I/O-SYSTEM 750