From the [Common Settings (R)] menu, point to [Security (Q)] and select [Security Password (P)] or click 
on the toolbar.
The password setting screen will open. Select the [Enable Security Function] check box, and type the password for each level of user.
Set a password up to eight single-byte characters long.
Select the [Add User ID] check box to add the User ID to the Password. As with the password, User IDs can be up to eight single-byte characters long.
Select [Set up Functions at Each Security Level] and set the level of [Online Logic Editing].
The security level of Online Logic Monitor always needs to be equal to or greater than that of the Logic Monitor. To set security for both of these, be sure to set the level of Online Logic Monitor first.
Set the level of the [Logic Monitor].
