Siemens sinumerik 808d Programming And Operating Manual page 18

Programming principles
1.1 Fundamentals of programming
Address Significance
ACOS() Arc cosine
ATAN2( , ) Arctangent2
SQRT() Square root
POT() Square
ABS() Absolute value
TRUNC() Truncate to integer
LN() Natural logarithm
EXP() Exponential
function
RET Subroutine end
S... Spindle speed
S1=... Spindle speed
for spindle 1
S Cutting rate
with G96 active
S Dwell time
in block with G4
T Tool number
X Axis
Y Axis
Z Axis
AC Absolute
coordinate
axis
ACC[ ] Percentage
acceleration
override
18
Value assignments
0.001 ... 99 999.999
0.001 ... 99 999.999
0.001 ... 99 999.999
0.001 ... 99 999.999
1 ... 32 000
only integer, no sign
±0.001 ... 99 999.999
±0.001 ... 99 999.999
±0.001 ... 99 999.999
-
1 ... 200, integer
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
Information
The angle of the sum vector is
calculated from 2 vectors
standing vertically one on
another. The 2nd vector
specified is always used for
angle reference.
Result in the range: -180 to
+180 degrees
Used instead of M2 - to maintain
the continuous-path mode
Unit of measurement of the
spindle r.p.m.
Unit of measurement of the
spindle r.p.m.
Cutting rate unit m/min with
G96; for spindle only
Dwell time in spindle revolutions
The tool change can be
performed either directly using
the T command or only with M6.
This can be set in the machine
data.
Positional data
Positional data
Positional data
The dimension can be specified
for the end or center point of a
certain axis, irrespective of G91.
Acceleration override for an axis
or spindle; specified as a
percentage
Turning Part 2: Programming (Siemens instructions)
Programming
R20=ACOS(R2) ; R20: ...
Degrees
R40=ATAN2(30.5,80.1) ;
R40: 20.8455 degrees
R6=SQRT(R7)
R12=POT(R13)
R8=ABS(R9)
R10=TRUNC(R2)
R12=LN(R9)
R13=EXP(R1)
RET ;separate block
S...
S1=725 ; speed 725
r.p.m. for spindle 1
G96
S...
G4 S... ;separate block
T...
X...
Y...
Z...
N10 G91 X10 Z=AC(20)
;X -incremental
dimension,
Z - absolute dimension
N10 ACC[X]=80 ;for the X
axis 80%
N20 ACC[S]=50;for the
spindle: 50%