HEIDENHAIN TNC 620 (340 56x-01) - Manual (Page 23)

HEIDENHAIN TNC 620 23
10.1 Principle and Overview ..... 386
Programming notes ..... 387
Calling Q-parameter functions ..... 387
10.2 Part Families—Q Parameters in Place of Numerical Values ..... 388
Example NC blocks ..... 388
Example ..... 388
10.3 Describing Contours through Mathematical Operations ..... 389
Function ..... 389
Overview ..... 389
Programming fundamental operations ..... 390
10.4 Trigonometric Functions ..... 391
Definitions ..... 391
Programming trigonometric functions ..... 392
10.5 Calculating Circles ..... 393
Function ..... 393
10.6 If-Then Decisions with Q Parameters ..... 394
Function ..... 394
Unconditional jumps ..... 394
Programming If-Then decisions ..... 394
Abbreviations used: ..... 395
10.7 Checking and Changing Q Parameters ..... 396
Procedure ..... 396
10.8 Additional Functions ..... 397
Overview ..... 397
FN14: ERROR: Displaying error messages ..... 398
FN 16: F-PRINT: Formatted output of text and Q parameter values ..... 402
FN18: SYS-DATUM READ Read system data ..... 407
FN19: PLC: Transferring values to the PLC ..... 415
FN20: WAIT FOR: NC and PLC synchronization ..... 416
FN29: PLC: Transferring values to the PLC ..... 418
FN37:EXPORT ..... 418
10.9 Accessing Tables with SQL Commands ..... 419
Introduction ..... 419
A Transaction ..... 420
Programming SQL commands ..... 422
Overview of the soft keys ..... 422
SQL BIND ..... 423
SQL SELECT ..... 424
SQL FETCH ..... 427
SQL UPDATE ..... 428
SQL INSERT ..... 428
SQL COMMIT ..... 429
SQL ROLLBACK ..... 429
10 Programming: Q Parameters ..... 385