Siemens SINUMERIK 802D sl Programming Manual page 191

04.07
Global main
run/subroutine
Ground
H
Helical interpolation
High- -speed digital
inputs/outputs
HIGHSTEP
I
Identifier
Inch system of
measurement
Inclined axis
© Siemens AG 2007 All rights reserved
SINUMERIK 802D sl/840D/840D sl/840Di/840Di sl/810D ISO Milling (PGM) - - 04.07 Edition
Each global main run/subroutine can be stored only once under its
name in the directory. However, the same name can be used in
different directories.
"Ground" is the term applied to all the electrically inactive,
interconnected parts of a piece of equipment which cannot carry any
hazardous contact voltage even in the event of a fault.
The helical interpolation function is ideal for machining internal and
external threads using form milling cutters and for milling lubrication
grooves. The helix comprises two movements:
1. Circular movement in one plane
2. Linear movement perpendicular to this plane.
As an example, high--speed CNC program routines (interrupt
routines) can be started via the digital inputs. High--speed,
program--driven switching functions can be initiated via the digital
CNC outputs (SINUMERIK 840D). (SINUMERIK 840D).
Combination of the programming features for the --> PLC in the
S7--300/400 range.
In accordance with DIN 66025, identifiers (names) for variables
(arithmetic variables, system variables, user variables), for
subroutines, for vocabulary words and for words can contain several
address letters. These letters have the same meaning as the words
in the block syntax. Identifiers must be unique. Identical identifiers
must not be used for different objects.
System of measurement that defines distances in "inches" and
fractions thereof.
Fixed angular interpolation with allowance for an inclined infeed axis
or grinding wheel through specification of the angle. The axes are
programmed and displayed in the Cartesian coordinate system.
Terms
B-191