What is the meaning of the error message "The back-end PLC2-M7000-starts to detect that there is material in the work area, please confirm the status of the work area machine code of KM-ASSYH2-05 error id of 161
The solution for the error would be to visually inspect the work area to confirm if there is any material present. Once the area is clear, the PLC can be restarted, and the error should no longer occur.