Siemens SINUMERIK 828D Function Manual page 1443

Flat D number
Flat D number means that tool management is carried out outside the NCK and there is no reference made to T
numbers.
No mixture of tool management and flat D no.
It does not make sense to mix or distribute the tool management functions over the NCK and PLC, since the
main reason for tool management on the NCK is to save time.
This only works if the tasks that are time­critical are carried out on the NCK. This is not the case for "Flat D
number", however.
Note
Activation of both of the functions "Flat D number structure" and "Tool management" is
monitored. If both are activated at the same time, "Tool management" takes priority.
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
W1: Tool offset
18.3 Flat D number structure
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