Siemens SINUMERIK 840D

1
Flexible NC Programming 04.00
1.6 Arithmetic o
p
erations/functions
1
840D
NCU 571
840D
NCU 572
NCU 573
FM-NC 810D 840Di

Siemens AG 2000. All rights reserved
1-40
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
Programming examples
R1=R1+1
New R1 = old R1 +1
R1=R2+R3 R4=R5-R6 R7=R8*R9
R10=R11/R12 R13=SIN(25.3)
R14=R1*R2+R3
Multiplication and division have priority over
addition and subtraction
R14=(R1+R2)*R3
Parentheses are calculated first
R15=SQRT(POT(R1)+POT(R2))
Inner parentheses are solved first
R15 = square root of (R1
2
+R2
2
)
RESFRAME= FRAME1:FRAME2
FRAME3=CTRANS(…):CROT(…)
The chain operator combines frames in a
resulting frame or assigns values to the
frame components
Arithmetic function ATAN2( , )
The function calculates the angle of the resulting
vector from two vectors at right angles to each other.
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.
80.1
30.5
-80
30
R3=ATAN2(30.5,80.1)
R3=ATAN2(30,-80)
1st vector
2nd vector
2nd vector
1st vector
Angle=20.8455°
Angle=159.444°