Siemens sinumerik 840d Programming Manual page 268

Tool Offsets
8
8.2 Language commands for tool management
840D 840D
NCU 571 NCU 572
NCU 573
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
D1
G1 X10 ...
T="DRILL"
D2 Y20 ...
X10 ...
M6
SETPIECE(4)
D1 G1 X10 ...
A complete list of all variables required for tool
management is given in the list of system variables
in the Appendix.
8-268
810D 840Di
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) − 04.00 Edition
Load tool 1
Select tool length compensation
Machining with T1
Preselect drill
Change cutting edge T1
Machining with T1
Load tool drill
Number of completed workpieces
Machining with drill
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04.00
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