Clear; Quick Clear; Precautions - Mitsubishi Electric MELSEC iQ-R Series User Manual

Clear

The following data of the Motion module is deleted after the reboot is carried out.
• User drive (/rom) storage data
• Latch drive (/lch) storage data
• Security information
• A part of system drive (/sys) storage data
• RAM drive (/ram) storage data
• Write required data such as the add-on libraries, the parameters, and the programs after clear is completed.
• Since the password and key information related to security which are registered in the motion system are
also deleted, set them again in needed.
It may take some time to carry out a low-level format of the drive.
While the clear is executed, the RUN LED is flashing (every 500 ms).
After the clear is completed, the RUN LED turns ON. The system starts with the parameters, the programs, and the backup
data, etc. deleted.
When the clear is failure, the ERR LED is flashing (every 200 ms). In this case, execute clear again.

Quick clear

• The data of the Motion module is deleted after the reboot is carried out. That data is the same as the data from the time of
"Clear".
• The drive carries out quick format. Quick format can clear the data faster than low-level format ("Clear" is at run time).
However, if an access to the file can not be performed normally after quick clear by reason of file system damage, etc.,
execute a low-level ("Clear") format.
• While the quick clear is executed, the RUN LED is flashing (every 500 ms).
• After the quick clear is completed normally, the RUN LED turns ON. The system starts with the parameters, the programs,
and the backup data, etc. deleted.
• When the quick clear is failed, the ERR LED is flashing (every 200 ms). In this case, execute quick clear or clear again.

Precautions

• It is recommended to execute the software reboot during the PLC READY [Y0] OFF.
• When data reset by the software reboot is executed, the variables and status of the slave device change.
• During software reset of the motion area, the communication with the engineering tool and the dedicated instruction issued
from the CPU module may be completed with an error.
• Do not execute hardware reboot while clear or quick clear is executed.
3 BASIC FUNCTIONS
101
3.4 Software Reboot
3