Siemens SINUMERIK 840D sl Function Manual page 1814

Detailed Description
2.1 Tool
The following occurs when this part of the program is executed again:
Txx
....
Tyy M06
If necessary, the original point of the T call can be corrected after the end of the program. If
the tool change logic on the machine cannot process this, the program must be aborted and
the point of the error corrected.
If only one data set is missing, it is transferred to the NCK, Txx is programmed in "Overstore"
and the program is subsequently resumed.
As in the case of "missing D number", the required parameter (T number) can be accessed
by the user for "missing T number" via the appropriate alarm (17191).
Note
In order to enable program correction, it stops immediately at the faulty Txx block.
The program text operation is also stopped when machine data:
MD22562 $MC_TOOL_CHANGE_ERROR_MODE Bit0=1 (response on errors in tool
change).
2.1.7 Definition of the effect of the tool parameters
MD20360
The effect of the tool parameters on the transverse axis in connection with diameter
programming can be controlled selectively with the machine data:
MD20360 $MC_TOOL_PARAMETER_DEF_MASK (definition of tool parameters).
Details are described with the mentioned MD
DRF handwheel traversal with half distance
During DRF handwheel traversal, it is possible to move a transverse axis through only half
the distance of the specified increment as follows:
Specify the distance with handwheel via the machine data:
MD11346 $MN_HANDWHEEL_TRUE_DISTANCE = 1 (handwheel path or speed
specification).
Define the DRF offset in the transverse axis as a diameter offset with the machine data:
MD20360 $MC_TOOL_PARAMETER_DEF_MASK Bit 9 = 1 (definition of tool parameters).
26
; Error! Data set with xx does not exist,
; Detect state; detect xx;
; continue in program
; Detect bit memory "xx missing" → cancel without further response,
; as Tyy M06 is correct → program does not stop (correct).
Basic logic functions: Tool Offset (W1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0