Siemens SINUMERIK 828D Function Manual page 690

K2: Axis Types, Coordinate Systems, Frames
10.1 Brief description
Adjustable frames
Adjustable frames can be defined as either global NCU or channel-specific frames.
Consistency
When writing, reading and activating frames, e.g. using channel coordination, the user is solely responsible for
achieving consistent behavior within the channels. Cross­channel activation of frames is not supported.
Basic Functions
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Function Manual, 09/2011, 6FC5397-0BP40-2BA0