HEIDENHAIN TNC 320 (340 55x-03) - Manual (Page 23)

HEIDENHAIN TNC 320 23
10.1 Principle and Overview ..... 378
Programming notes ..... 379
Calling Q parameter functions ..... 379
10.2 Part Families—Q Parameters in Place of Numerical Values ..... 380
Example NC blocks ..... 380
Example ..... 380
10.3 Describing Contours through Mathematical Operations ..... 381
Function ..... 381
Overview ..... 381
Programming fundamental operations ..... 382
10.4 Trigonometric Functions ..... 383
Definitions ..... 383
Programming trigonometric functions ..... 384
10.5 Calculating Circles ..... 385
Function ..... 385
10.6 If-Then Decisions with Q Parameters ..... 386
Function ..... 386
Unconditional jumps ..... 386
Programming If-Then decisions ..... 386
Abbreviations used: ..... 387
10.7 Checking and Changing Q Parameters ..... 388
Procedure ..... 388
10.8 Additional Functions ..... 389
Overview ..... 389
FN14: ERROR: Displaying error messages ..... 390
FN 16: F-PRINT: Formatted output of text and Q parameter values ..... 394
FN18: SYS-DATUM READ Read system data ..... 399
FN19: PLC: Transferring values to the PLC ..... 407
FN20: WAIT FOR: NC and PLC synchronization ..... 408
FN29: PLC: Transferring values to the PLC ..... 410
FN37:EXPORT ..... 410
10.9 Accessing Tables with SQL Commands ..... 411
Introduction ..... 411
A Transaction ..... 412
Programming SQL commands ..... 414
Overview of the soft keys ..... 414
SQL BIND ..... 415
SQL SELECT ..... 416
SQL FETCH ..... 419
SQL UPDATE ..... 420
SQL INSERT ..... 420
SQL COMMIT ..... 421
SQL ROLLBACK ..... 421
10 Programming: Q-Parameters ..... 377