HEIDENHAIN iTNC 530 (60642x-04) ISO programming - Manual (Page 36)

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9.1 Principle and overview ..... 284
Programming notes ..... 286
Calling Q-parameter functions ..... 287
9.2 Part families—Q parameters in place of numerical values ..... 288
Application ..... 288
9.3 Describing contours through mathematical operations ..... 289
Application ..... 289
Overview ..... 289
Programming fundamental operations ..... 290
9.4 Trigonometric functions ..... 291
Definitions ..... 291
Programming trigonometric functions ..... 292
9.5 If-then decisions with Q parameters ..... 293
Application ..... 293
Unconditional jumps ..... 293
Programming if-then decisions ..... 294
9.6 Checking and changing Q parameters ..... 295
Procedure ..... 295
9.7 Additional functions ..... 296
Overview ..... 296
D14: ERROR: Displaying error messages ..... 297
D15: Output of texts or Q parameter values ..... 301
D19: Transfer values to the PLC ..... 302
9.8 Entering formulas directly ..... 303
Entering formulas ..... 303
Rules for formulas ..... 305
Programming example ..... 306
9.9 String parameters ..... 307
String processing functions ..... 307
Assigning string parameters ..... 308
Chain-linking string parameters ..... 309
Converting a numerical value to a string parameter ..... 310
Copying a substring from a string parameter ..... 311
Copying system data to a string parameter ..... 312
Converting a string parameter to a numerical value ..... 314
Checking a string parameter ..... 315
Finding the length of a string parameter ..... 316
Comparing alphabetic priority ..... 317
9 Programming: Q Parameters ..... 283