Siemens SINUMERIK 840DE Programming Manual page 312

Tool offsets
8.4 Tool offset D
Tool length compensations take immediate effect when the D number is programmed. If no
D word is programmed, the default setting from the machine data is valid for tool change. A
tool radius compensation must also be G41/G42/ activated.
Programming
D...
Or
D0=
Parameters
Dx
x
D0=
Note: If you do not enter a D number you work without a tool offset.
Machine manufacturer
Default by machine manufacturer, e.g.: D1, i.e. without D programming, D1 is
activated/selected when the tool is changed (M06). The tools are activated with T
programming (see machine manufacturer's specifications).
The compensation is applied with the first programmed traversal of the respective tool length
compensation axis.
Caution
The modified values do not become active until the T or D number is next programmed.
The required D number must always be programmed before the tool length compensation
can be selected. The tool length compensation is also effective if the compensation is set in
the machine data.
8-16
Tool offset number:
without TOOLMAN 1... 8 or with TOOLMAN 1...12
x stands for the D No.: 0-32000
Tool offset deselection, no offsets active.
D0 is preset by default after start-up of control.
Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
Fundamentals