Siemens SINUMERIK 840D sl Function Manual page 159

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
For example, when rotating the drum of a multi-spindle machine into a new position, it must
be ensured that each position addresses the newly changed spindle by rotation of the axis
container.
Note
Axis containers can be used jointly by different channels of an NCU and by channels of other
NCUs.
If axes of different channels display reference to the same axis container via the logical
machine axis image, then all channels concerned see different axes after a rotation. This
means: The time for a rotation must be coordinated between the channels. This is performed
by means of the available language commands.
Each entry in the axis container must be assigned to the correct channel at all times. The
system variables (refer to ) offer the possibility for the part program or synchronized action to
gain information about the current axis container state.
Commands for the axis container rotation
The requirement outlined above for coordinating channels that jointly use an axis container is
contained in the effects of the command AXCTSWE.
Notation:
Programming
AXCTSWE(CTi)
The increment of a circuit must be stored in the following setting data (container-specific):
SD41700 $SN_AXCT_SWWIDTH[container number]
SD41700 is available globally through the NCU global link module (all NCUs connected via
link module see the same values).
Function:
Each channel whose axes are entered in the specified container issues an enable for a
container rotation if it has finished machining the position / station. Once the control receives
the enables from all channels for the axes in the container, the container is rotated with the
increment specified in SD41700 (the direction of rotation is also evaluated based on the
leading sign if any):
The variant below is used with a view to facilitating commissioning:
Programming
AXCTSWED(CT1)
The axis container rotates according to the settings in setting data:
SD41700 $SN_AXCT_SWWIDTH[container number]
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Comment
; The function name represents:
AXis ConTainer SWitch Enable
CTi is the identifier of the axis container to be moved
to the next position/station.
Comment
; The function name represents:
AXis ConTainer SWitch Enable Direct
2.7 Axis container
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