Siemens SINUMERIK 840D Programming Manual page 303

04.00
A
Main program
MDA
Messages
Metric measurement
system
Mirroring
Module
N
NC
NCK
O
Oriented spindle stop
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SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Cycles (PGZ) - 04.00 Edition
-> Part program identified by a number or name in which further main
programs, subroutines or -> cycles may be called.
A mode in the control: Manual Data Automatic: In the MDA mode,
individual program blocks or block sequences with no reference to a
main program or subroutine can be input and executed immediately
afterwards through actuation of the NC start key.
All messages programmed in the part program and -> alarms detected
by the system are displayed on the operator panel in plain text with
date and time as well as the appropriate symbol for the reset criterion.
Alarms and messages are displayed separately.
Standardized system of units: for lengths in millimeters (mm),
meters (m), etc.
Mirroring exchanges the leading signs of the coordinate values of a
contour in relation to an axis. Mirroring can be performed
simultaneously in relation to several axes.
"Module" is the term given to any files required for creating and
processing programs.
Numerical control: It incorporates all the components of the of the
machine tool control system: -> NCK, -> PLC, -> MMC, -> COM.
Note CNC (computerized numerical control) would be a more
appropriate description for the SINUMERIK FM-NC, 810D or 840D .
Numeric Control Kernel: Components of the NC control which
executes
-> part programs and essentially coordinates the movements on the
machine tool.
Stops the workpiece spindle with a specified orientation angle, e.g. to
perform an additional machining operation at a specific position.
This function is used in some drilling cycles.
Appendix
A
Terms
A-303