Terms
04.07
B-195
© Siemens AG 2007 All rights reserved
SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) -- 04.07 Edition
Machine coordinate
system
System of coordinates based on the axes of the machine tool.
Machine zero A fixed point on the machine tool which can be referenced by all
(derived) measurement systems.
Machining channel A channel structure makes it possible to reduce downtimes by
allowing sequences of motions to be executed in parallel. For
example, a loading gantry can execute its movements during a
machining operation. In this case, a CNC channel ranks as an
autonomous CNC control complete with decoding, block preparation
and interpolation.
Macros Multiple programming language instructions can be combined in a
single statement. This abbreviated sequence of instructions is called
in the CNC program under a user--defined name. The macro
executes the instructions sequentially.
Main block A block prefixed by ”:” containing all the parameters required to start
execution of a --> part program.
Main program --> Part program identified by a number or name in which other main
programs, subroutines or --> cycles may be called.
Main run Part program blocks which have been decoded and prepared by the
preprocessor are executed during the ”main run”.
MDA Control system operating mode: 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.
To Next Page
Loading...
