Lead Link Axis; Configuration - Siemens SINUMERIK 840D sl Function Manual

Extended functions

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B3: Distributed systems - 840D sl only

3.3 Examples

Lead link axis

NCU2 to NCUn use a lead link axis to enable coupling to the machine axis on NCU1 (NCU1-AX3).

The following example refers to the axis coupling section between Y(LAX2, AX2) as following

axis on NCU2 and Z(LAX3, NC1_AX3) as lead link axis.

Machine data

● The machine data of a leading value axis may only be loaded on the home NCU. From this

NCU, the relevant machine data are distributed to the other NCUs where a lead link axis

has been defined.

● Each lead link axis reduces the maximum number of axes that can be traversed on this

NCU by one axis.

Machine data for NCU1 (leading axis)

Machine data

$MN_NCU_LINKNO = 1

$MN_MM_NCU_LINK_MASK = 1

$MN_MM_LINK_NUM_OF_MODULES= 2

1. or master NCU

NCU link active

Number of link modules

Function Manual, 10/2015, 6FC5397-1BP40-5BA3

Extended Functions

Sinumerik 828d