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Fn 26: tabopen: opening a freely definable table, 8 a d ditional f unctions – HEIDENHAIN iTNC 530 (340 49x-04) User Manual

Page 629

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HEIDENHAIN iTNC 530

629

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ditional F

unctions

FN 26: TABOPEN: Opening a freely definable
table

With FN 26: TABOPEN you can define a table to be written with FN27,
or to be read from with FN 28.

Example: Open the table TAB1.TAB, which is saved in the
directory TNC:\DIR1.

FN 27: TABWRITE: Writing to a freely definable
table

After you have opened a table with FN 26: TABOPEN, you can use the
function FN 27: TABWRITE to write to it.

You can define up to 8 column names for writing in a TABWRITE
block. The column names must be written between quotation marks
and separated by a comma. You define the values that the TNC is to
write to the respective column with Q parameters.

Example:

You wish to write to the columns “Radius,” “Depth” and “D” in line
5 of the presently opened table. The values to be written in the table
must be saved in the Q parameters Q5, Q6 and Q7.

Only one table can be open in an NC program. A new block
with TABOPEN automatically closes the last opened table.

The table to be opened must have the file name extension
.TAB.

56 FN 26: TABOPEN TNC:\DIR1\TAB1.TAB

You can write only to numerical table fields.

If you wish to write to more than one column in a block,
you must save the values under successive Q parameter
numbers.

53 FN0: Q5 = 3.75

54 FN0: Q6 = -5

55 FN0: Q7 = 7.5

56 FN 27: TABWRITE 5/“RADIUS,DEPTH,D” = Q5