Siemens SINUMERIK 802D sl Programming Manual page 184

Terms
B
B spline
Back up
Backlash
compensation
Backup battery
Base axis
Basic coordinate
system
Baud rate
Blank
Block
Block
B-184
The programmed positions for the B spline are not interpolation
points, but merely "check points". The curve generated does not
pass directly through these check points, but only in their vicinity
(1st, 2nd or 3rd degree polynomial).
A copy of the memory contents (hard disk) stored on an external
device for data backup and/or archiving.
Compensation of a mechanical machine backlash, e.g. backlash
due to reversal of leadscrews. The backlash compensation can be
entered separately for each axis.
The backup battery provides non--volatile storage for the --> user
program in the --> CPU and ensures that defined data areas and
flags, timers and counters are retentive.
Axis whose setpoint or actual value is employed in calculating a
compensatory value.
Cartesian coordinate system, is mapped onto machine coordinate
system by means of transformation.
In the --> part program, the programmer uses the axis names of the
basic coordinate system. The basic coordinate system exists in
parallel to the --> machine coordinate system when no -->
transformation is active. The difference between the systems relates
only to the axis identifiers.
Rate at which data transmission takes place (bit/s).
The unmachined workpiece.
A section of a --> part program terminated with a line feed. A
distinction is made between --> main blocks and --> subblocks.
All files required for programming and program execution are known
as blocks.
SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) - - 04.07 Edition
© Siemens AG 2007 All rights reserved
04.07