Siemens SINUMERIK 840D Function Manual page 119

The following axis-specific basic position is assigned to the transverse axis during the power-
up of the NC: "Transfer of the diameter programming channel status" DIAMCHANA[<Axis>]
With the release of the axis-specific diameter programming (MD30460, bit 2 = 1), the following
axis-specific operations can be used at the user's end:
● DIAMONA (axis-specific modal diameter programming: ON)
● DIAMOFA (axis-specific modal diameter programming: OFF)
● DIAM90A (axis-specific modal diameter programming for G90 and AC, radius programming
for G91 and IC)
● DIACYCOFA (axis-specific modal diameter programming: OFF in cycles)
● DIAMCHANA (transfer of the diameter programming channel status)
Dimensions for tool parameters
With the following channel-specific machine data, the following tool parameters can be
activated as diameter values for all of the transverse axes defined in the channel:
MD20360 $MC_TOOL_PARAMETER_DEF_MASK.<Bit> = <value>
MD20360 $MC_TOOL_PARAMETER_DEF_MASK
Bit
1
2
3
4
5
6
7
8
9
10
11
12
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
Value Meaning
1 Transverse axis tool length as a diameter
1 Alarm for wear or tool length as a diameter and plane change
0 Work offset $P_EXTFRAME and frames
1)
For transverse axes, work offsets in frames are always calculated as radius values.
1 The work offset (WO) in frames in the transverse axis as a diameter
The frame stores the work offsets internally as a radius value. There is no conversion
during a change of diameter to radius programming or vice versa.
1 Preset value as a diameter
0 External work office (axis overlay)
1)
For transverse axes, the external work offset is always calculated as a radius value.
1 External WO of the transverse axis as a diameter
There is no conversion during a change of diameter to radius programming or vice
versa.
1 Actual values of the transverse axis as a diameter
1 Display of actual values of the transverse axis as a diameter value
1 Display of remaining path in WCS always as a radius
1)
For all of the transverse axes for which it is set that the specifications of the handwheel are path
1)
specifications (MD11346 $MN_HANDWH_TRUE_DISTANCE == 1), the following applies:
0 Half of the path of the specified handwheel increment is traveled if channel-specific or
axis-specific diameter programming is active for this axis.
1 Half of the path of the specified handwheel increment is always traveled.
1 Tool portion of an active tool carrier that can be oriented if no tool is active
1 Evaluation of $TC_DP6 as a diameter
1 Evaluation of $TC_DP15 as wear of the tool diameter
P1: Transverse axes
4.2 Parameterization
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