Flexible Configuration - Siemens SINUMERIK 840D sl Function Manual

Hardware
● The NCUs involved in alternate use of axes across NCU limits must be equipped with a
References:
/PHD/ 840D NCU Configuration Manual
The following description provides the information required to configure, program and
coordinate the distributed machines shown in the drawing.
2.1.4.4

Flexible configuration

Axis container
On rotary indexing machines/multi-spindle machines, the axes holding the workpiece move
from one machining unit to the next. Since the machining units are subject to different NCU
channels, the axes holding the workpiece must be dynamically reassigned to the
corresponding NCU channel if there is a change in station/position. Axis containers are
provided for this purpose.
Only one workpiece clamping axis/spindle is active at any one time on the local machining
unit. The axis container provides the possible connections to all clamping axes/spindles.
Only one of these is ever activated for the machining unit.
The following can be assigned via the axis container:
● Local axes and/or
● Link axes
Switching between the available axes defined in an axis container works by cyclical shifting
(rotation) of the entries in the axis container.
The shift can be triggered by the part program.
Range of validity
Axis containers with link axes are cross-NCU (NCU-global) devices which are coordinated
via the control.
It is also possible to have axis containers that are only used for managing local axes.
Extended Functions
Function Manual, 01/2008, 6FC5397-1BP10-3BA0
Several Operator Panels on Several NCUs, Distributed Systems (B3)
link module. The NCU link module offers fast NCU-to-NCU communication based on a
synchronized 12-Mbaud Profibus interface.
2.1 Brief Description
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