Tool Offsets; Offset Memory - Siemens SINUMERIK 840D sl Programming Manual

Tool offsets

7.1

Offset memory

7.1
Function
Structure of the offset memory
Every data field can be invoked with a T and D number (except "Flat D No."); in addition to
the geometrical data for the tool, it contains other information such as the tool type.
Flat D number structure
The "Flat D No. structure" is used if tool management takes place outside the NCK. In this
case, the D numbers are created with the corresponding tool compensation blocks without
assignment to tools.
T can continue to be programmed in the part program. However, this T has no reference to
the programmed D number.
User cutting edge data
User cutting edge data can be configured via machine data. Please refer to the machine
manufacturer's instructions.
Tool parameters
Note
Individual values in the offset memory
The individual values of the offset memory P1 to P25 can be read and written by the
program via system variables. All other parameters are reserved.
The tool parameters $TC_DP6 to $TC_DP8, $TC_DP10 and $TC_DP11 as well as
$TC_DP15 to $TC_DP17, $TC_DP19 and $TC_DP20 have another meaning depending on
tool type.
Also applies to milling tools for 3D face milling
1
Tool type for slotting saw
2
Reserved: Is not used by SINUMERIK 840D
3
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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