Siemens Sinumerik 840D sl Programming Manual page 65

BOUND ()
CTRANS()
CROT ()
CSCALE()
CMIRROR()
Programming
The usual mathematical notation is used for arithmetic functions. Priorities for execution are
indicated by parentheses. Angles are specified for trigonometry functions and their inverse
functions (right angle = 90°).
Examples
Example 1: ATAN2
Job planning
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
Variable value within the defined value range
(see "Variable minimum, maximum and range (MINVAL,
MAXVAL and BOUND) [Page 71]")
Translation
Rotation
Change of scale
Mirroring
Flexible NC programming
1.3 Arithmetic functions
The arithmetic function ATAN2
calculates the angle of the total
vector from two mutually
perpendicular vectors.
The result is in one of four
quadrants (-180° < 0 < +180°).
The angular reference is always
based on the 2nd value in the
positive direction.
65