Programming With Channel And Machine Axis Identifiers - Siemens SINUMERIK 840D sl Function Manual

B3: Several operator panels connected to several NCUs, distributed systems - only 840D sl
Powering up an NCU grouping
If an NCU in a link grouping is restarted by an NCK reset, the other NCUs in the grouping will
also execute an NCK reset.
Nibbling and punching
To execute nibbling and punching operations, high-speed inputs and outputs must be
connected and parameterized on the "interpolation" NCU (on which the part program is
being executed). Commands "High-speed nibbling and punching", e.g. PONS and SONS are
not available for link axes.
Travel to fixed endstop
If an axis container axis is being held against a fixed stop, the axis container cannot rotate.
Axes can travel to fixed stops on different NCUs and be subsequently clamped without
restriction.
Frames
Link axes may be included in the program commands for frames only if they are geometry
axes as well. The command only changes the geometry for the channel in which the axis is
currently assigned. A frame command for an axis which is not defined as a geometry axis is
rejected with alarm 14092.
Rev. feedrate
Setting data SD43300 SA_ASSIGN_FEED_PER_REV_SOURCE refers to the logical
machine axis image and then via this to a machine axis (local or link axis).
2.6.5

Programming with channel and machine axis identifiers

Channel axis identifier
Example:
WHENEVER $AA_IW[Z] < 10 DO ...;Current position of Z axis
Machine axis identifier
Example:
WHENEVER $AA_IW[AX3] < 10 DO ...;Scan current position of machine axis AX3
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
2.6 Link axes
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