Clear Zero Offset (Mode 14); Tool Length Offset (Mode 15) - Siemens SIMATIC S5 Manual

I
I
Coordinates before the transformation
I
start
-500
BA13 (zero offset relative); 330 mm; reverse
,
Coordinates after the transformation
-170
Fig. 4/20 Zero offset relative
4.3.7
Clear Zero Offset
When this mode is started, all zero offsets, established by
"zero offset absolute", BA12 or
"zero offset relative", BA 13
or zero offsets which were not cancelled because a machining program was aborted are
cleared. (=> Section 4.3.1 "Automatic").
If several zero offsets have been performed, it is not possible to clear individual offsets, only the
total zero offset can be cleared. The coordinate system is then once again as it was with mode 5.
4.3.8

Tool Length Offset (Mode 15)

The "tool offset" mode allows user programs and machining programs to be used when the tool
length changes without having to change the program.
In the operating instruction of mode 15, you enter the value and direction of the tool length off-
set, The direction is stipulated with the commands "forward" or "reverse", Remember that the
sign before the offset value is taken into account. The command . . .
u
Reference point
from the
machine data
I
I
0
! -200
(Mode 14)
Executing Machining Programs
I —— Reference edge
u
Software limit switch
Current position
end
!
Software limit switch
end
I
' d
500
830
4-31