Siemens SINUMERIK 840D

8
Tool Offsets 04.00
8.7 Free assi
g
nment of D numbers
,
cuttin
g
ed
g
e number CE
8
840D
NCU 572
NCU 573
840Di

Siemens AG 2000. All rights reserved
8-294
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA)
−
04.00 Edition
This assigns cutting edge CE=3 the new D value 17.
Now, these data for the cutting edge are addressed via
D number 17; both via the system parameters and in
the programming with the NC address.
Additional notes
You must assign unique D numbers. Two different
cuttting edges of a tool must not have the same D
number.
8.7.3 T numbers for the specified D number (GETACTTD)
Programming
status = GETACTTD(Tno, Dno)
Explanation of the parameters
Dno
D number to be looked for for the T number.
Tno
T number found
status
0: The T number was found. Tno contains the value of the T number.
–1: The specified D number does not have a T number; Tno=0.
–2: The D number is not absolute. Tno contains the value of the first tool found
that contains the D number with the value Dno.
–5: Unable to perform the function for another reason.
Function
For an absolute D number, GETACTTD determines
the assocated T number. There is not check for
uniqueness. If there are several identical D numbers
within a TO unit, the T number of the first tool found
is returned. If 'flat' D numbers are used, it does not
make sense to use the command because the value
1 is always returned (no T number in database).