HEIDENHAIN TNC 620 User Manual page 27

8 Programming: Q Parameters.........................................................................................................239
8.1 Principle and overview of functions.................................................................................................. 240
Programming notes................................................................................................................................241
Calling Q parameter functions............................................................................................................... 242
8.2 Part families—Q parameters in place of numerical values.............................................................. 243
Application.............................................................................................................................................. 243
8.3 Describing contours with mathematical functions.......................................................................... 244
Application.............................................................................................................................................. 244
Overview................................................................................................................................................ 244
Programming fundamental operations...................................................................................................245
8.4 Angle functions (trigonometry).......................................................................................................... 246
Definitions...............................................................................................................................................246
Programming trigonometric functions................................................................................................... 246
8.5 Calculation of circles............................................................................................................................247
Application.............................................................................................................................................. 247
8.6 If-then decisions with Q parameters................................................................................................. 248
Application.............................................................................................................................................. 248
Unconditional jumps...............................................................................................................................248
Programming if-then decisions.............................................................................................................. 248
Abbreviations used:................................................................................................................................249
8.7 Checking and changing Q parameters...............................................................................................250
Procedure............................................................................................................................................... 250
8.8 Additional functions.............................................................................................................................252
Overview................................................................................................................................................ 252
FN 14: ERROR: Displaying error messages...........................................................................................253
FN 16: F-PRINT: Output of formatted texts and Q parameter values.....................................................257
FN 18: SYS-DATUM READ: Reading system data................................................................................. 261
FN 19: PLC: Transfer values to PLC...................................................................................................... 270
FN 20: WAIT FOR: NC and PLC synchronization.................................................................................. 270
FN 29: PLC: Transfer values to the PLC................................................................................................272
FN 37: EXPORT......................................................................................................................................272
TNC 620 | User's Manual
HEIDENHAIN Conversational Programming | 5/2013
27