Siemens SINUMERIK 840Di Function Manual page 736

Detailed Description
2.1 Axes
Tool Length Compensation
Any active tool length compensation remains operative and is applied to the new geometry
axes after replacement.
The system treats tool length compensations as not yet applied for the following geometry
axes:
• All geometry axes, which have been newly added to the geometry axis grouping.
• All geometry axes, which have changed their positioning within the geometry axis
Geometry axes, which retain their position within the geometry axis grouping after a
replacement operation, also retain their status with respect to tool length compensation.
RESET
MD20110 RESET_MODE_MASK
Bit 12:
Bit 12 = 0
Bit 12 = 1
MD20118 GEOAX_CHANGE_RESET
FALSE:
TRUE:
Program start
Analogously to the Reset response, the response on Start is determined by:
MD20112 START_MODE_MASK
Bit 12:
Bit 12 = 0
Bit 12 = 1
2-6
grouping.
Reset response of the modified geometry axis assignment.
When machine data $MC_GEOAX_CHANGE_RESET is enabled, a modified
geometry axis assignment is cleared on Reset or end of part program. The basic
setting defined in the machine data for the geometry axis assignment is activated.
A modified geometry axis assignment remains active after a reset/part-program end.
The current configuration of the geometry axes remains unchanged on reset and
program start. With this setting, the response is identical to older software versions
without geometry axis replacement.
The configuration of the geometry axes remains unchanged or is switched to the
basic state defined in machine data AXCONF_GEOAX_ASSIGN_TAB on Reset and
part-program end (according to machine data $MC_RESET_MODE_MASK) and on
part-program start (according to machine data$MC_START_MODE_MASK).
Response of the modified geometry axis assignment.
A modified geometry axis assignment remains active on part-program start.
A modified geometry axis assignment is cleared on part-program start.
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0