HEIDENHAIN TNC 320 User Manual page 38

Contents
9 Programming Q parameters........................................................................................................313
9.1 Principle and overview of functions................................................................................................. 314
Programming notes...............................................................................................................................316
Calling Q parameter functions.............................................................................................................. 317
9.2 Part families—Q parameters in place of numerical values............................................................. 318
Application............................................................................................................................................. 318
9.3 Describing contours with mathematical functions......................................................................... 319
Application............................................................................................................................................. 319
Overview............................................................................................................................................... 319
Programming fundamental operations..................................................................................................320
9.4 Angle functions................................................................................................................................... 322
Definitions............................................................................................................................................. 322
Programming trigonometric functions.................................................................................................. 322
9.5 Calculation of circles...........................................................................................................................323
Application............................................................................................................................................. 323
9.6 If-then decisions with Q parameters................................................................................................ 324
Application............................................................................................................................................. 324
Unconditional jumps..............................................................................................................................324
Abbreviations used:...............................................................................................................................324
Programming if-then decisions............................................................................................................. 325
9.7 Checking and changing Q parameters............................................................................................. 326
Procedure.............................................................................................................................................. 326
9.8 Additional functions............................................................................................................................328
Overview............................................................................................................................................... 328
FN 14: ERROR: Displaying error messages......................................................................................... 329
FN16: F-PRINT – Formatted output of text and Q parameter values.................................................... 333
FN 18: SYSREAD – Reading system data............................................................................................ 338
FN 19: PLC – Transfer values to the PLC.............................................................................................347
FN 20: WAIT FOR – NC and PLC synchronization............................................................................... 347
FN 29: PLC – Transfer values to the PLC.............................................................................................348
FN 37: EXPORT.....................................................................................................................................348
FN 38: SEND – Send information from NC program............................................................................348
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HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016