8
Tool Offsets 04.00
8.2 Lan
ua
e commands for tool mana
ement
8
840D
NCU 571
840D
NCU 572
NCU 573
810D 840Di
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Siemens AG 2000. All rights reserved
8-268
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
GETSELT function
This function returns the T number of the tool
preselected for the spindle.
This function allows access to the tool offset data
before M6 and thus establishes main run
synchronization slightly earlier.
Example for tool change with tool management
T1 Preselect tool, i.e. the tool magazine can be
brought into the tool position parallel to
machining.
M6 Load preselected tool (depending on the
setting in the machine data you can also
program without M6).
Example:
T1 M6
Load tool 1
D1
Select tool length compensation
G1 X10 …
Machining with T1
T="DRILL"
Preselect drill
D2 Y20 …
Change cutting edge T1
X10 …
Machining with T1
M6
Load tool drill
SETPIECE(4)
Number of completed workpieces
D1 G1 X10 …
Machining with drill
A complete list of all variables required for tool
management is given in the list of system variables
in the Appendix.