A2: Various NC/PLC interface signals and functions
1.3 Functions
Basic Functions
64 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Access features
• Protection level 0 provides the greatest number of access rights, protection level 7 the least.
• If certain access rights are granted to a protection level, these protection rights automatically apply to any
higher protection levels.
• Conversely, protection rights for a certain protection level can only be altered from a higher protection level.
• Access rights for protection levels 0 to 3 are permanently assigned by Siemens and cannot be altered
(default).
• Access rights can be set by querying the current keyswitch positions and comparing the passwords entered.
When a password is entered it overwrites the access rights of the keyswitch position.
• Options can be protected on each protection level. However, option data can only be entered in protection
levels 0 and 1.
• Access rights for protection levels 4 to 7 are only suggestions and can be altered by the machine tool
manufacturer or end user.
1.3.5.2 Password
Set password
The password for a protection level (0 – 3) is entered via the HMI user interface.
Example:
DIAGNOSTIC operating area, softkey: SET PASSWORD
References:
Commissioning Manual SINUMERIK 840D sl base software and HMI sl
Delete password
Access rights assigned by means of setting a password remain effective until they are explicitly revoked by
deleting the password.
Example:
DIAGNOSTIC operating area, softkey: DELETE PASSWORD
References:
Commissioning Manual SINUMERIK 840D sl base software and HMI sl
Note
Access rights and password status (set/deleted) are not affected by POWER OFF/ON!
Maximum number of characters
A password may contain up to eight characters. We recommend that you confine yourself to the characters
available on the operator panel front when defining the password. Where a password consists of less than eight
characters, the additional characters are interpreted as blanks.
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