HEIDENHAIN TNC 426B (280 472) ISO programming - Manual (Page 305)

11 Test Run and Program Run 290
ú To go to the first block of the current program to
start a block scan, enter GOTO “0”.
ú To select mid-program startup, press the
RESTORE POS AT N soft key.
ú Start-up at N: Enter the block number
N at which the block scan should end.
ú Program: Enter the name of the
program containing block N.
ú Repetitions: If block N is located in a
program section repeat, enter the
number of repetitions to be calculated
in the block scan.
ú PLC ON/OFF (not TNC 426, TNC 430):
To account for tool calls and
miscellaneous functions M: Set the
PLC to ON (use the ENT key to switch
between ON and OFF). If PLC is set to
OFF, the TNC considers only the
geometry.
ú To start block scan:
TNC 426, TNC 430: Press the machine
START key
TNC 410: Press the START soft key
ú To return to the contour, proceed as
described below in “Returning to the
contour.”
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