HEIDENHAIN TNC 620 User Manual page 30

Contents
9 Programming: Q Parameters.......................................................................................................271
9.1 Principle and overview of functions................................................................................................. 272
Programming notes...............................................................................................................................273
Calling Q parameter functions.............................................................................................................. 274
9.2 Part families-Q parameters in place of numerical values............................................................. 275
Application............................................................................................................................................. 275
9.3 Describing contours with mathematical functions......................................................................... 276
Application............................................................................................................................................. 276
Overview............................................................................................................................................... 276
Programming fundamental operations..................................................................................................277
9.4 Angle functions (trigonometry)......................................................................................................... 278
Definitions............................................................................................................................................. 278
Programming trigonometric functions.................................................................................................. 278
9.5 Calculation of circles...........................................................................................................................279
Application............................................................................................................................................. 279
9.6 If-then decisions with Q parameters................................................................................................ 280
Application............................................................................................................................................. 280
Unconditional jumps..............................................................................................................................280
Programming if-then decisions............................................................................................................. 280
Abbreviations used:...............................................................................................................................281
9.7 Checking and changing Q parameters............................................................................................. 282
Procedure.............................................................................................................................................. 282
9.8 Additional functions............................................................................................................................284
Overview............................................................................................................................................... 284
FN 14: ERROR: Displaying error messages......................................................................................... 285
FN 16: F-PRINT: Output of formatted texts and Q parameter values....................................................289
FN 18: SYS-DATUM READ: Reading system data................................................................................ 293
FN 19: PLC: Transfer values to PLC..................................................................................................... 302
FN 20: WAIT FOR: NC and PLC synchronization................................................................................. 302
FN 29: PLC: Transfer values to the PLC...............................................................................................304
FN 37: EXPORT.....................................................................................................................................304
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TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014