Behavior With Faulty T Programming - Siemens Sinumerik 840D sl Programming Manual

<n>:
M6:
T0:
Note
If the selected magazine location is not occupied in a tool magazine, the command acts as for
T0. The selection of the next occupied magazine location can be used to position the empty
location.
Example
Program code
N10 T=1 M6
N20 D1
N30 G1 X10 ...
...
N70 T="Drill"
N80 ...
...
N100 M6
N140 D1 G1 X10 ...
...
5.3

Behavior with faulty T programming

The behavior with faulty T programming depends on the configuration of the machine:
MD22562 TOOL_CHANGE_ERROR_MODE
Bit
7
Fundamentals
Programming Manual, 01/2015, 6FC5398-1BP40-5BA2
Spindle number as address extension
Note:
The possibility of programming a spindle number as an address extension depends on
the configuration of the machine; → see machine manufacturer's specifications.
M function for the tool change (according to DIN 66025)
M6 activates the selected tool (T...) and the tool offset (D...).
Command for the tool deselection (magazine location not occupied)
Value Meaning
0 Basic setting!
With the T programming, a check is made immediately as to whether the NCK recog‐
nizes the T number. If not, an alarm is triggered.
1 The programmed T number will only be checked following D selection. If the NCK does
not recognize the tool number, an alarm is issued during D selection.
This response is desirable if, for example, tool programming is also intended to achieve
positioning and the tool data is not necessarily available (circular magazine).
5.3 Behavior with faulty T programming
Comment
; Loading of the tool from magazine location 1.
; Selection of tool length offset.
; Machining with tool T=1.
; Preselection of the tool with name "Drill".
; Machining with tool T=1.
; Loading of the drill.
; Machining with drill.
Tool change
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