HEIDENHAIN iTNC 530 (60642x-03) ISO programming - Manual (Page 34)

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9.1 Principle and overview ..... 278
Programming notes ..... 280
Calling Q-parameter functions ..... 281
9.2 Part families—Q parameters in place of numerical values ..... 282
Function ..... 282
9.3 Describing contours through mathematical operations ..... 283
Function ..... 283
Overview ..... 283
Programming fundamental operations ..... 284
9.4 Trigonometric functions ..... 285
Definitions ..... 285
Programming trigonometric functions ..... 286
9.5 If-then decisions with Q parameters ..... 287
Function ..... 287
Unconditional jumps ..... 287
Programming if-then decisions ..... 288
9.6 Checking and changing Q parameters ..... 289
Procedure ..... 289
9.7 Additional functions ..... 290
Overview ..... 290
D14: ERROR: Displaying error messages ..... 291
D15 PRINT: Output of texts or Q parameter values ..... 295
D19 PLC: Transfer values to the PLC ..... 296
9.8 Entering formulas directly ..... 297
Entering formulas ..... 297
Rules for formulas ..... 299
Programming example ..... 300
9.9 String parameters ..... 301
String processing functions ..... 301
Assigning string parameters ..... 302
Chain-linking string parameters ..... 303
Converting a numerical value to a string parameter ..... 304
Copying a substring from a string parameter ..... 305
Copying system data to a string parameter ..... 306
Converting a string parameter to a numerical value ..... 308
Checking a string parameter ..... 309
Finding the length of a string parameter ..... 310
Comparing alphabetic priority ..... 311
9 Programming: Q parameters ..... 277