334 Diagnostics
WAGO-I/O-SYSTEM 750
750-8207 PFC200 CS 2ETH RS 3G
Manual
Draft version 1.2.1 from 2017-09-13, valid from FW Version 02.06.20(09)
Table 237: Error Code 4, Explanation of Blink Codes and Procedures for Troubleshooting
Error
Argument Cause
Solution
--
Maximum permissible
number of I/O modules
exceeded.
- Switch off the power to the controller.
- Reduce the number of I/O modules
to an acceptable value.
- Switch the power back on.
n*
Internal data bus
disruption after the n
th
process data module.
- Switch off the power to the controller.
- Replace the (n+1)
th
process data
module.
- Switch the power back on.
I/O modules that do not provide any data
are ignored (e.g., supply module without
diagnostics).
Table 238: Error Code 5, Explanation of Blink Codes and Procedures for Troubleshooting
Error
Argument Cause
Solution
n*
Register communication
error during internal data
bus initialization
- Switch off the power to the controller.
- Replace the (n+1)
th
process data
module.
- Switch the power back on.
I/O modules that do not provide any data
are ignored (e.g., supply module without
diagnostics).
Table 239: Error Code 9, Explanation of Blink Codes and Procedures for Troubleshooting
Error
Argument Cause
Solution
1
Invalid program statement Malfunction of the program sequence.
- Please contact WAGO Support.
2
Stack overflow
Malfunction of the program sequence.
- Please contact WAGO Support.
3
Stack underflow
Malfunction of the program sequence.
- Please contact WAGO Support.
4
Invalid event (NMI)
Malfunction of the program sequence.
- Please contact WAGO Support.