A2: Various NC/PLC interface signals and functions
1.3 Functions
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
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1.3.5
Access protection via password and keyswitch
1.3.5.1
Access protection via password and keyswitch
Access authorization
Access to functions, programs and data is useroriented and controlled via 8 hierarchical protection levels. These
are subdivided into:
• Password levels for Siemens, machine manufacturer and end user
• Keyswitch positions for end user
Multi-level security concept
A multi-level security concept to regulate access rights is available in the form of password levels and keyswitch
settings.
Protection level
Type
User
Access to (examples)
0
Password
Siemens
All functions, programs and
data
1
Password
Machine manufacturer:
Development
defined functions, programs
and data;
for example: entering options
2
Password
Machine manufacturer:
Startup engineer
defined functions, programs
and data;
for example: Bulk of machine
data
3
Password
End user: Service
Assigned functions,
programs and data
4
Keyswitch position 3
End user: Programmer,
machine setter
less than the protection level
0 to 3; established by the
machine manufacturer or
end user
5
Keyswitch position 2
End user: Skilled operator
without programming
knowledge
less than the protection level
0 to 3; established by the
end user
6
Keyswitch position 1
End user: Trained operator
without programming
knowledge
Example:
Program selection only, tool
wear entry, and work offset
entry
7
Keyswitch position 0
End user: Semi-skilled
operator
Example:
no inputs and program
selection possible,
only machine control panel
operable
