Link Axes - Siemens SINUMERIK 840D sl Function Manual

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Example: Channel axis gap

Channel axis B is not assigned a machine axis in the following example.

Axis configuration with channel axis gap (excerpt)

Special situations: Channel axis gaps

Regarding channel axis gaps, the following also have to be taken into account:

● Channel axes without assigned machine axes (channel axis gaps) are, regarding the

number and indexing of the channel axes, treated just like normal channel axes with

associated machine axes.

● If a channel axis without assigned machine axis (channel axis gap) is defined as geometry

axis, then this is rejected without an alarm.

Link axes

A link axis is a machine axis that is not on the NCU from which it is traversed. The name of a

local machine axis is not entered in the machine data for the logical machine axis image of the

traversing NCU, but the NCU and machine axis name of the NCU to which it is physically

As an example, machine axis AX1 of NCU2 should be traversed from NCU1:

● NCU1: MD10002 $MN_AXCONF_LOGIC_MACHAX_TAB[n] = NC2_AX1

The NCUs involved must be connected using link communication as a requirement for using

link axes. The link axes and link communication functions are described in detail in:

Basic Functions

Function Manual, 01/2015, 6FC5397-0BP40-5BA2

K2: Axis Types, Coordinate Systems, Frames

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Sinumerik 828d Sinumerik 840de sl