HEIDENHAIN TNC 320 (340 551-02) - Manual (Page 21)

HEIDENHAIN TNC 320 21
10.1 Principle and Overview ..... 334
Programming notes ..... 335
Calling Q parameter functions ..... 335
10.2 Part Families—Q Parameters in Place of Numerical Values ..... 336
Example NC blocks ..... 336
Example ..... 336
10.3 Describing Contours through Mathematical Operations ..... 337
Function ..... 337
Overview ..... 337
Programming fundamental operations ..... 338
10.4 Trigonometric Functions ..... 339
Definitions ..... 339
Programming trigonometric functions ..... 340
10.5 Calculating Circles ..... 341
Function ..... 341
10.6 If-Then Decisions with Q Parameters ..... 342
Function ..... 342
Unconditional jumps ..... 342
Programming If-Then decisions ..... 342
Abbreviations used: ..... 343
10.7 Checking and Changing Q Parameters ..... 344
Procedure ..... 344
10.8 Additional Functions ..... 345
Overview ..... 345
FN14: ERROR: Displaying error messages ..... 346
FN16: F-PRINT: Formatted output of texts or Q parameter values ..... 348
FN18: SYS-DATUM READ Read system data ..... 352
FN19: PLC: Transferring values to the PLC ..... 360
FN20: WAIT FOR: NC and PLC synchronization ..... 361
FN29: PLC: Transferring values to the PLC ..... 363
FN37:EXPORT ..... 364
10.9 Accessing Tables with SQL Commands ..... 365
Introduction ..... 365
A Transaction ..... 366
Programming SQL commands ..... 368
Overview of the soft keys ..... 368
SQL BIND ..... 369
SQL SELECT ..... 370
SQL FETCH ..... 373
SQL UPDATE ..... 374
SQL INSERT ..... 374
SQL COMMIT ..... 375
SQL ROLLBACK ..... 375
10 Programming: Q Parameters ..... 333