HEIDENHAIN TNC 320 (340 55x-05) ISO programming - Manual (Page 22)

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8.1 Principle and Overview ..... 202
Programming notes ..... 203
Calling Q-parameter functions ..... 204
8.2 Part Families—Q Parameters in Place of Numerical Values ..... 205
Function ..... 205
8.3 Describing Contours through Mathematical Operations ..... 206
Function ..... 206
Overview ..... 206
Programming fundamental operations ..... 207
8.4 Trigonometric Functions ..... 208
Definitions ..... 208
Programming trigonometric functions ..... 209
8.5 If-Then Decisions with Q Parameters ..... 210
Function ..... 210
Unconditional jumps ..... 210
Programming If-Then decisions ..... 210
8.6 Checking and Changing Q Parameters ..... 211
Procedure ..... 211
8.7 Additional Functions ..... 212
Overview ..... 212
D14: ERROR: Displaying error messages ..... 213
D18: Read system data ..... 218
D19 PLC: Transfer values to the PLC ..... 227
D20 WAIT FOR: NC and PLC synchronization ..... 227
D29: Transfer values to the PLC ..... 228
D37 EXPORT ..... 229
8.8 Accessing Tables with SQL Commands ..... 230
Introduction ..... 230
A Transaction ..... 231
Programming SQL commands ..... 233
Overview of the soft keys ..... 233
SQL BIND ..... 234
SQL SELECT ..... 235
SQL FETCH ..... 238
SQL UPDATE ..... 239
SQL INSERT ..... 239
SQL COMMIT ..... 240
SQL ROLLBACK ..... 240
8.9 Entering Formulas Directly ..... 241
Entering formulas ..... 241
Rules for formulas ..... 243
Programming example ..... 244
8 Programming: Q Parameters ..... 201