HEIDENHAIN ITNC 530 - 6-2010 DIN-ISO PROGRAMMING User Manual page 27

9 Programming: Q Parameters ..... 253
9.1 Principle and Overview ..... 254
Programming notes ..... 256
Calling Q-parameter functions ..... 257
9.2 Part Families-Q Parameters in Place of Numerical Values ..... 258
Function ..... 258
9.3 Describing Contours through Mathematical Operations ..... 259
Function ..... 259
Overview ..... 259
Programming fundamental operations ..... 260
9.4 Trigonometric Functions ..... 261
Definitions ..... 261
Programming trigonometric functions ..... 262
9.5 If-Then Decisions with Q Parameters ..... 263
Function ..... 263
Unconditional jumps ..... 263
Programming If-Then decisions ..... 264
9.6 Checking and Changing Q Parameters ..... 265
Procedure ..... 265
9.7 Additional Functions ..... 266
Overview ..... 266
D14: ERROR: Displaying error messages ..... 267
D15 PRINT: Output of texts or Q parameter values ..... 271
D19 PLC: Transfer values to the PLC ..... 272
9.8 Entering Formulas Directly ..... 273
Entering formulas ..... 273
Rules for formulas ..... 275
Programming example ..... 276
9.9 String Parameters ..... 277
String processing functions ..... 277
Assigning string parameters ..... 278
Chain-linking string parameters ..... 279
Converting a numerical value to a string parameter ..... 280
Copying a substring from a string parameter ..... 281
Copying system data to a string parameter ..... 282
Converting a string parameter to a numerical value ..... 284
Checking a string parameter ..... 285
Finding the length of a string parameter ..... 286
Comparing alphabetic priority ..... 287
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