HEIDENHAIN TNC 620 (340 56x-03) - Manual (Page 24)

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8.10 Entering Formulas Directly ..... 275
Entering formulas ..... 275
Rules for formulas ..... 277
Programming example ..... 278
8.11 String Parameters ..... 279
String processing functions ..... 279
Assigning string parameters ..... 280
Chain-linking string parameters ..... 281
Converting a numerical value to a string parameter ..... 282
Copying a substring from a string parameter ..... 283
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
Reading machine parameters ..... 288
8.12 Preassigned Q Parameters ..... 291
Values from the PLC: Q100 to Q107 ..... 291
Active tool radius: Q108 ..... 291
Tool axis: Q109 ..... 292
Spindle status: Q110 ..... 292
Coolant on/off: Q111 ..... 292
Overlap factor: Q112 ..... 292
Unit of measurement for dimensions in the program: Q113 ..... 293
Tool length: Q114 ..... 293
Coordinates after probing during program run ..... 293
Deviation between actual value and nominal value during automatic tool measurement with the TT 130 ..... 294
Tilting the working plane with mathematical angles: rotary axis coordinates calculated by the TNC ..... 294
Measurement results from touch probe cycles (see also User’s Manual for Touch Probe Cycles) ..... 295
8.13 Programming Examples ..... 297