Siemens SINUMERIK 840D SL Operating Manual page 54

Introduction
1.4 User interface
Diagnostics operating area
Start-up operating area
54
Protection level
Keyswitch 3
(protection level 4)
User
(protection level 3)
User
(protection level 3)
Manufacturer
(protection level 1)
User
(protection level 3)
Service
(protection level 2)
Protection levels
End user
(protection level 3)
Keyswitch 3
(protection level 4)
Keyswitch 3
(protection level 4)
Keyswitch 3
(protection level 4)
Keyswitch 3
(protection level 4)
Service
(protection level 2)
End user
(protection level 3)
End user
(protection level 3)
Operating Manual, 02/2012, 6FC5398-7CP40-3BA0
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