HEIDENHAIN iTNC 530 User Manual page 32

9 Programming: Q-Parameters ..... 273
9.1 Principle and Overview ..... 274
Programming notes ..... 276
Calling Q-parameter functions ..... 277
9.2 Part Families-Q Parameters in Place of Numerical Values ..... 278
Function ..... 278
9.3 Describing Contours through Mathematical Operations ..... 279
Function ..... 279
Overview ..... 279
Programming fundamental operations ..... 280
9.4 Trigonometric Functions ..... 281
Definitions ..... 281
Programming trigonometric functions ..... 282
9.5 If-Then Decisions with Q Parameters ..... 283
Function ..... 283
Unconditional jumps ..... 283
Programming If-Then decisions ..... 284
9.6 Checking and Changing Q Parameters ..... 285
Procedure ..... 285
9.7 Additional Functions ..... 286
Overview ..... 286
D14: ERROR: Displaying error messages ..... 287
D15 PRINT: Output of texts or Q parameter values ..... 291
D19 PLC: Transfer values to the PLC ..... 292
9.8 Entering Formulas Directly ..... 293
Entering formulas ..... 293
Rules for formulas ..... 295
Programming example ..... 296
9.9 String Parameters ..... 297
String processing functions ..... 297
Assigning string parameters ..... 298
Chain-linking string parameters ..... 299
Converting a numerical value to a string parameter ..... 300
Copying a substring from a string parameter ..... 301
Copying system data to a string parameter ..... 302
Converting a string parameter to a numerical value ..... 304
Checking a string parameter ..... 305
Finding the length of a string parameter ..... 306
Comparing alphabetic priority ..... 307
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