HEIDENHAIN TNC 620 (340 56x-02) - Manual (Page 24)

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8.10 Entering Formulas Directly ..... 269
Entering formulas ..... 269
Rules for formulas ..... 271
Programming example ..... 272
8.11 String Parameters ..... 273
String processing functions ..... 273
Assigning string parameters ..... 274
Chain-linking string parameters ..... 275
Converting a numerical value to a string parameter ..... 276
Copying a substring from a string parameter ..... 277
Converting a string parameter to a numerical value ..... 278
Checking a string parameter ..... 279
Finding the length of a string parameter ..... 280
Comparing alphabetic priority ..... 281
8.12 Preassigned Q Parameters ..... 282
Values from the PLC: Q100 to Q107 ..... 282
Active tool radius: Q108 ..... 282
Tool axis: Q109 ..... 283
Spindle status: Q110 ..... 283
Coolant on/off: Q111 ..... 283
Overlap factor: Q112 ..... 283
Unit of measurement for dimensions in the program: Q113 ..... 284
Tool length: Q114 ..... 284
Coordinates after probing during program run ..... 284
Deviation between actual value and nominal value during automatic tool measurement with the TT 130 ..... 285
Tilting the working plane with mathematical angles: rotary axis coordinates calculated by the TNC ..... 285
Measurement results from touch probe cycles (see also User’s Manual for Touch Probe Cycles) ..... 286
8.13 Programming Examples ..... 288