Siemens SINUMERIK 828D Programming Manual page 7

Table of contents
Preface ...................................................................................................................................................... 3
1 Fundamental Geometrical Principles ....................................................................................................... 13
1.1 Workpiece positions.....................................................................................................................13
1.1.1 Workpiece coordinate systems ....................................................................................................13
1.1.2 Cartesian coordinates ..................................................................................................................15
1.1.3 Polar coordinates .........................................................................................................................18
1.1.4 Absolute dimensions....................................................................................................................19
1.1.5 Incremental dimension.................................................................................................................21
1.2 Working planes ............................................................................................................................23
1.3 Zero points and reference points .................................................................................................25
1.4 Coordinate systems .....................................................................................................................27
1.4.1 Machine coordinate system (MCS)..............................................................................................27
1.4.2 Basic coordinate system (BCS) ...................................................................................................30
1.4.3 Basic zero system (BZS) .............................................................................................................32
1.4.4 Settable zero system (SZS) .........................................................................................................33
1.4.5 Workpiece coordinate system (WCS)..........................................................................................34
1.4.6 What is the relationship between the various coordinate systems? ............................................34
2 Fundamental Principles of NC Programming ........................................................................................... 35
2.1 Name of an NC program..............................................................................................................35
2.2 Structure and contents of an NC program ...................................................................................37
2.2.1 Blocks and block components .....................................................................................................37
2.2.2 Block rules....................................................................................................................................39
2.2.3 Value assignments.......................................................................................................................41
2.2.4 Comments....................................................................................................................................42
2.2.5 Skipping blocks ............................................................................................................................43
3 Creating an NC program.......................................................................................................................... 45
3.1 Basic procedure ...........................................................................................................................45
3.2 Available characters.....................................................................................................................47
3.3 Program header ...........................................................................................................................49
3.4 Program examples.......................................................................................................................51
3.4.1 Example 1: First programming steps ...........................................................................................51
3.4.2 Example 2: NC program for turning .............................................................................................52
3.4.3 Example 3: NC program for milling ..............................................................................................54
4 Tool change............................................................................................................................................. 57
4.1 Tool change without tool management........................................................................................58
4.1.1 Tool change with T command......................................................................................................58
4.1.2 Tool change with M6....................................................................................................................59
4.2 Tool change with tool management (option)................................................................................61
4.2.1 Tool change with T command with active tool management (option)..........................................61
4.2.2 Tool change with M6 with active tool management (option)........................................................64
4.3 Behavior with faulty T programming ............................................................................................66
Fundamentals
Programming Manual, 07/2010, 6FC5398-1BP40-0BA0
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