Supplementary Conditions; Flat D Number Structure - Siemens SINUMERIK 840D sl Function Manual

W1: Tool offset

18.14 Supplementary conditions

A frame rotation of Z through 60 degrees is now programmed with G17 active, e.g. rot Z60.
The direction of the applicate (Z direction) remains unchanged; the main component of L2 now
lies in the direction of the new X axis; the main component of L1 now lies in the direction of
the negative Y axis. The return axis is thus 1, and _AXIND contains the values (2, -3, 1).
In this case, the associated matrix _MATRIX is:
Note
For further information to the above mentioned coordinate systems, please refer to:
References:
Programming Manual, Job Planning; Tool Offsets:
18.14 Supplementary conditions
18.14.1

Flat D number structure

Grinding tools
Grinding tools (tool types 400-499) cannot be defined using the simple tool management
structure (flat D numbers).
Block search
T number output to PLC triggers a synchronization process in the NCK: with absolute, indirect
D programming, the PLC returns the D values via NC/PLC interfaces. The NCK waits until the
output of a T number is followed by a response from the PLC: "I have written the D number".
With block search without calculation, this process of synchronization must be deactivated
until the first valid T number has been output again. That means that the NCK must not wait
on D programming.
Note
At what point the auxiliary functions can be output to PLC after block search is complete, can
be controlled with the machine data:
$MC_AUXFU_AT_BLOCK_SEARCH_END (auxiliary function output after block search)
Automatic on end or on NC start.
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Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions