Do you have the operator's manual that explains all of this? I can send you one if you don't have it. Here's what I found.
"OEM programs
PLC program, MSGFILE program, CFGFILE program, STPFILE, USR* program, PLC
messages and PLC errors.
If any of the programs described is not an OEM program, it will request confirmation to make
it OEM. If you chose not to make it OEM, it will not be saved.
OEM and hidden programs will be saved encrypted. When doing the Backup, OEM and hidden
programs are encrypted based on the OEM password. If the Restore is carried out on a CNC
with a different OEM password, the CNC will issue the error message "the program is protected"
and will not allow restoring it.."
"Passwords:Lets define each of the passwords that the operator must key in before accessing the various CNC
commands.
• General password (MASTERPSW)
It is requested when trying to access this password option.
(Utilities mode / Protections / Passwords).
• OEM password (OEMPSW)
It is requested when trying to access OEM permissions
(Utilities mode / Protections / OEM permissions).
• User password (USERPSW)
It is requested when trying to access user permissions
(Utilities mode / Protections / User permissions).
• PLC access password (PLCPSW)
It is requested in the following cases:
When compiling the PLC program.
When trying to change the status of a resource or execute a program execution controlling
command.
To protect the PLC program, the PLC message program and the PLC error program, modify their
attributes so they are "Non-modifiable".
• Customizing password (CUSTOMPSW)
It is requested when trying to access the Customizing mode or when attempting to erase an OEM
screen.
• Machine parameter access password (SETUPPSW)
It is requested when trying to access the options to modify the table values (Edit, Modify, Initialize,
Delete and Load) except for tables of the serial lines which are not protected."