[Cause]
The signal required for the unit has not yet been set.
[Countermeasure]
In the error history, the preceding error-log entry shows the incorrect signal name. Correct that I/O signal setting and perform a cold start.
Loading fault information
The signal required for the unit has not yet been set.
In the error history, the preceding error-log entry shows the incorrect signal name. Correct that I/O signal setting and perform a cold start.