HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 315)

HEIDENHAIN CNC PILOT 4290 315
4.34 Pr
ogr
amming with V
a
ri
ables
4.34 Programming with Variables
The CNC PILOT supports NC programs before the program run. The
system therefore differentiates between two types of variables:
„ # variables are evaluated during NC program interpretation.
„ V variables (or events) are evaluated during NC program run.
These rules apply during calculation:
„ Multiplication/division before addition/subtraction
„ Up to 6 bracket levels
„ Integer variables (only for V variables): Integer values between
–32767 .. +32768
„ Real variables: Floating point numbers with max. 10 integers and
7 decimal places
„ The variables are retained even if the control has been switched off
in the meantime.
„ See the table for the available mathematical operations
Syntax Mathematical functions
+ Addition
– Subtraction
* Multiplication
/ Division
SQRT(...) Square root
ABS(...) Absolute amount
TAN(...) Tangent (in degrees)
ATAN(...) Arc tangent (in degrees)
SIN(...) Sine (in degrees)
ASIN(...) Arc sine (in degrees)
COS(...) Cosine (in degrees)
ACOS(...) Arc cosine (in degrees)
ROUND(...) Round
LOGN(...) Natural logarithm
EXP(...) Exponential function ex
INT(...) Truncate decimal places
Only with # variables:
SQRTA(.., ..) Square root of (a
2
+b
2
)
SQRTS(.., ..) Square root of (a
2
–b
2
)
Program NC blocks containing variable calculations with
slide code $.. if your lathe has more than one slide.
Otherwise, the calculations are repeated.