Siemens SINUMERIK 840D sl Function Manual page 952

Memory Configuration (S7)
Memory organization
15.2 Memory organization
15.2.1 Active and passive file system
The static NC memory contains an active and passive file system.
Active file system
The active file system contains system data used to parameterize the NCK:
● Machine data
● Setting data
● Option data
● Global user data (GUD)
● Tool-offset/magazine data
● Protection zones
● R parameters
● Work offsets/FRAME
● Sag compensations
● Quadrant error compensation
● Leadscrew error compensation
This data represents the current work data of the NCK.
The user's view of the active file system is data-oriented.
Passive file system
The passive file system contains all files loaded onto the NCK:
● Main programs
● Subprograms
● Global-user-data and macro definition files (*.DEF)
● Standard cycles
● User cycles
● Workpieces
● Comments
The user's view of the passive file system is file-oriented.
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Function Manual, 03/2009, 6FC5397-1BP10-4BA0
Extended Functions