192 Diagnostics
WAGO-I/O-SYSTEM
750
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
Table 61: Blink code- table for the I/O LED signaling, error code 1
Error code 1: "Hardware and configuration error"
Error
Argument
Error Description
Solution
1
Overflow of the
internal buffer
memory for the
attached I/O
modules.
1. Turn off the power for the node.
2. Reduce the number of I/O modules and turn the power
supply on again.
3. If the error persists, replace the fieldbus controller.
2
I/O module(s) with
unknown data type
1. Determine the faulty I/O module by first turning off the
power supply.
2. Plug the end module into the middle of the node.
3. Turn the power supply on again.
4. - LED continues to flash? -
Turn off the power supply 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).
5. Turn the power supply on again.
6. Repeat the procedure described in step 4 while halving
the step size until the faulty I/O module is detected.
7. Replace the faulty I/O module.
8. Inquire about a firmware update for the fieldbus
controller.
3
Invalid check sum in
the parameter area of
the fieldbus
controller.
1. Turn off the power supply for the node.
2. Replace the fieldbus controller.
3. Turn the power supply on again.
4
Fault when writing in
the serial EEPROM.
1. Turn off the power supply for the node.
2. Replace the fieldbus controller.
3. Turn the power supply on again.
5
Fault when reading
the serial EEPROM
1. Turn off the power supply for the node.
2. Replace the fieldbus controller.
3. Turn the power supply on again.
6
The I/O module
configuration after
AUTORESET
differs from the
configuration
determined the last
time the fieldbus
controller was
powered up.
1. Restart the fieldbus controller by turning the power
supply off and on.
7
Invalid hardware-
firmware
combination.
1. Turn off the power supply for the node.
2. Replace the fieldbus controller.
3. Turn the power supply on again.