HEIDENHAIN iTNC 530 (340 49x-03) smarT.NC Pilot - Manual (Page 112)

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Unit 7 Datum shift (FCL 2 function)
With unit 7, datum shift, you define a datum number from the datum
table that you have specified in the program header. Select the datum
number via soft key.
Unit 8 Mirroring (FCL 2 function)
With unit 8 you use check boxes to define the desired mirrored axes.
Before you use unit 7 you must select in the program head
the datum table in which smarT.NC will apply the datum
numbers (see “Program settings” on page 35.).
Reset datum shift: Define unit 7 with number 0. Ensure that
in line 0 all coordinates are defined as 0.
If you want to define a datum shift by entering coordinates,
use the conversational unit (see “Unit 40 Conversational
Unit” on page 120.).
If you define only one mirrored axis, the TNC changes the
machining direction.
Reset mirroring: Define unit 8 without mirrored axes.