Siemens SINUMERIK 840D sl Function Manual page 1369

when the offset memory is created): The individual values in the offset memory (tool
parameters) can be read and written from the program using system variables.
Note
The tools (T1 to T32000) do not have to be stored in ascending order or contiguously in the
tool compensation memory, and the first tool does not have to be assigned number T1.
Tool cutting edges
Each tool can have up to 9 cutting edges (D1 to D9). The first cutting edge (D1) is set up
automatically when a new tool is loaded in the tool compensation memory. Other cutting edges
(up to 8) are set up consecutively and contiguously using the "New cutting edge" soft key. A
different number of tool cutting edges can assigned to each tool in this way.
Figure 18-2
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Example of a tool compensation memory structure for 2 channels
W1: Tool offset
18.2 Tool
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