Attribute: Access Rights (Apr, Apw, Aprp, Apwp, Aprb, Apwb) - Siemens SINUMERIK 840D sl Programming Manual

Note
Level overflow due to format conversion
The internal storage format for all user variables (GUD/PUD/LUD) with physical units of
length is metric. Excessive use of these types of variable in the NCK's main run, e.g in
synchronized actions, can lead to a CPU time overflow at interpolation level when the
measuring system is switched over, generating alarm 4240.
NOTICE
Compatibility of units
When using variables (assignment, comparison, calculation, etc.) the compatibility of the
units involved is not checked. Should conversion be required, this is the sole responsibility
of the user/machine manufacturer.
1.1.10

Attribute: Access rights (APR, APW, APRP, APWP, APRB, APWB)

The following protection levels, which have to be specified during programming, correspond
to the access rights:
Access right
System password
Machine manufacturer password
Service password
End user password
Key-operated switch position 3
Key-operated switch position 2
Key-operated switch position 1
Key-operated switch position 0
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Flexible NC programming
1.1 Variables
Protection level
0
1
2
3
4
5
6
7
41