Siemens SINUMERIK 840DE Programming Manual page 10

Table of contents
3 Positional Data........................................................................................................................................ 3-1
3.1 General notes............................................................................................................................. 3-1
3.1.1 Program dimensions .................................................................................................................. 3-1
3.2 Absolute/relative dimensions ..................................................................................................... 3-2
3.2.1 Absolute dimension (G90, X=AC) .............................................................................................. 3-2
3.2.2 Incremental dimensions (G91, X=IC)......................................................................................... 3-6
3.3 Absolute dimension for rotary axes (DC, ACP, ACN).............................................................. 3-10
3.4 Dimensions inch/metric, (G70/G700, G71/G710) .................................................................... 3-12
3.5 Special turning functions .......................................................................................................... 3-15
3.5.1 Dimensions for radius, diameter, (DIAMON, DIAMOF, DIAM90) ............................................ 3-15
3.5.2 Position of workpiece ............................................................................................................... 3-17
3.6 Zero offset (frame), G54 to G57, G505 to G599, G53, G500/SUPA ....................................... 3-19
3.7 Selection of working plane (G17 to G19) ................................................................................. 3-25
3.8 Working area limitation (G25/G26, WALIMON, WALIMOF) .................................................... 3-28
3.9 Reference point approach (G74) ............................................................................................. 3-32
4 Programming Motion Commands ........................................................................................................... 4-1
4.1 General notes............................................................................................................................. 4-1
4.2 Travel commands with polar coordinates, polar angle, polar radius ......................................... 4-4
4.2.1 Defining the pole (G110, G111, G112) ...................................................................................... 4-4
4.2.2 Traversing commands with polar coordinates, (G0, G1, G2, G3 AP=..., RP=...) ...................... 4-5
4.3 Rapid traverse movement (G0, RTLION, RTLIOF) ................................................................... 4-9
4.4 Linear interpolation (G1) .......................................................................................................... 4-14
4.5 Circular interpolation types, (G2/G3, CIP, CT)......................................................................... 4-16
4.6 Circular interpolation with center point and end point (G2/G3, I=, J=, K=AC...) ...................... 4-20
4.7 Circular interpolation with radius and end point (G2/G3, CR).................................................. 4-24
4.8 Circular interpolation with arc angle and center point (G2/G3, AR=)....................................... 4-26
4.9 Circular interpolation with polar coordinates (G2/G3, AP=, RP=)............................................ 4-28
4.10 Circular interpolation with intermediate and end points (CIP).................................................. 4-30
4.11 Circular interpolation with tangential transition (CT) ................................................................ 4-32
4.12 Helical interpolation (G2/G3, TURN=)...................................................................................... 4-36
4.13 Involute interpolation (INVCW, INVCCW)................................................................................ 4-38
4.14 Contour definitions ................................................................................................................... 4-43
4.14.1 Straight line with angle (X2... ANG...) ...................................................................................... 4-43
4.14.2 Two straight lines (ANG1, X3... Z3... ANG2) ........................................................................... 4-44
4.14.3 Three straight lines (ANG1, X3... Z3... ANG2, X4... Z4...) ....................................................... 4-45
4.14.4 End point programming with angle .......................................................................................... 4-47
4.15 Thread cutting with constant lead (G33) .................................................................................. 4-47
4.15.1 Programmable run-in and run-out paths (DITS, DITE) ............................................................ 4-54
4.16 Linear progressive/degressive thread pitch change (G34, G35) ............................................. 4-56
4.17 Tapping without compensating chuck (G331, G332)............................................................... 4-57
4.18 Tapping with compensating chuck (G63)................................................................................. 4-59
4.19 Stop with thread cutting(LFOF, LFON, LFTXT, LFWP, LFPOS) ............................................. 4-61
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Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals