Siemens SINUMERIK 840D sl Function Manual page 729

Application
If a bit is set in MD20112 $MC_START_MODE_MASK, the reset action of the relevant
function can be delayed until the start of the part program.
Table 2-17 Effect of MD20112 $MC_START_MODE_MASK Bits 1 to 7
Bit 1 = 1 Bit 2 = 1
No D, T, M Reserved
output on tool
selection;
with active
tool
management
irrelevant
Bit 1 = 0 Bit 2 = 0
D, T, M output Reserved
on tool
selection;
with active
tool
management
irrelevant
Table 2-18 Effect of MD20112 $MC_START_MODE_MASK Bits 8 to 12
Bit 8 = 1
Coupledaxis groupings
are deactivated
Bit 8 = 0
Coupledaxis groupings
are retained
Basic logic functions: Mode group, channel, program operation, reset response (K1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.10 System settings for power-up, RESET/part-program end and part-program start
Bit 3 = 1 Bit 4 = 1
Reserved Plane
according to
MD20150
$MC_GCODE
_RESET_VAL
UES
Bit 3 = 0 Bit 4 = 0
Reserved Current plane
is retained
Bit 9 = 1
Tangential follow-up is
deactivated
Bit 9 = 0
Tangential follow-up is
retained
Bit 5 = 1 Bit 6 = 1
Frame WZK according to
according to MD20120
MD20150 $MC_TOOL_RESET_VALUE,
$MC_GCODE MD20121
_RESET_VAL $MC_TOOL_PRESEL_RESET
UES _
VALUE, and
MD20130 $MC_CUTTING_
EDGE_RESET_VALUE;
Output of D, T, M to PLC,
depending on bit 1
Bit 5 = 0 Bit 6 = 0
Current Active tool length offset is
settable frame retained
is retained
Bit 10 = 1
Not configured
synchronous spindle
coupling is switched off
Bit 10 = 0
Not configured
synchronous spindle
coupling remains active
Detailed description
Bit 11 = 1 Bit 12 = 1
Reserved Geometry axis
assignment is deleted
according to MD 20050,
depending on MD
20118 (because of
compatibility)
Bit 11 = 0 Bit 12 = 0
Reserved Modified geometry axis
assignment is retained
Bit 7 = 1
Transformatio
n according to
MD20140
$MC_TRAFO_
RESET_VALU
E
Bit 7 = 0
Active
transformation
is retained
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