HEIDENHAIN TNC 640 (34059x-05) ISO programming - Manual (Page 408)

Programming: Special functions
11.7 Freely definable tables
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TNC 640 | User's ManualDIN/ISO Programming | 1/2015
D28 – Read from a freely definable table
With the D28 function you read from the table previously opened
with D26.
You can define, i.e. read several column names in a D28 block.
The column names must be written between quotation marks
and separated by a comma. In the
D28 block you can define the
Q parameter number in which the TNC is to write the value that is
first read.
You can read only numerical table fields.
If you wish to read from more than one column in a
block, the TNC will save the values under successive
Q parameter numbers.
Example
You wish to read the values of the columns "Radius," "Depth" and
"D" from line 6 of the presently opened table. Save the first value in
Q parameter Q10 (second value in Q11, third value in Q12).
N56 D28 Q10 = 6/"RADIUS,DEPTH,D"