Siemens SINUMERIK 840DE

Fundamental Principles of NC Programming
2.2 Language elements of the programming language
Fundamentals
2-8 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
RND Round the contour corner fixed
RNDM Round contour corner (modally) fixed
S... Spindle speed fixed
T... Tool number fixed
U... Axis variable
V... Axis variable
W... Axis variable
X...
X=AC(...)
X=IC(...)
Axis
" absolute
" incremental
variable
Y...
Y=AC(...)
Y=IC(...)
Axis variable
Z...
Z=AC(...)
Z=IC(...)
Axis variable
AR+=... Aperture angle variable
AP=... Polar angle variable
CR=... Circle radius variable
RP=... Main block fixed
:... variable
"fixed"
These address names are available for a specific function.
Machine manufacturer
"variable"
The machine manufacturer may assign another name to these addresses via machine data.
Modal/non-modal addresses
Modal addresses remain valid with the programmed value (in all subsequent blocks) until a
new value is programmed at the same address.
Non-modal addresses only apply in the block, in which they were programmed.
Example:
N10 G01 F500 X10
N20 X10 ;Feedrate remains operative until a new feed value is entered
Addresses with axial extension
In addresses with axial extension, an axis name is inserted in square brackets after the
address. The axis name assigns the axis.