Program Display Modes Via An Additional Basic Block Display - Siemens SINUMERIK 828D Function Manual

K1: Mode group, channel, program operation, reset response
9.13 Program control
9.13.4

Program display modes via an additional basic block display

Basic block display (only for ShopMill/ShopTurn)
A second so­called basic block display can be used with the existing block display to show all blocks that produce
an action on the machine.
Look Ahead basic block display
The actually approached end positions are shown as an absolute position. The position values refer either to the
workpiece coordinate system (WCS) or the settable zero system (SZS).
The number of Look Ahead display blocks stored in the display buffer depends on the number of prepared blocks
in the NCK preprocessing buffer in the relevant processing state. If a preprocessing stop is processed, the
number of display blocks is reduced to zero and increases again after the stop is acknowledged. In the case of
REORG events (e.g., mode change, ASUB start), the display blocks stored for Look Ahead are deleted and
preprocessed again afterwards.
Processed values
Values processed in the basic block display coincide with the:
• selected tools
• feed and spindle speed
• actually approached position values
exceptions:
With active tool radius compensation, deviations can occur.
For modulo axes, the programmed value is displayed in the basic block display. This value can also lie
outside the modulo range.
Note
As a basic rule the positions are represented in the WCS or the SZS.
The basic block display can be activated or deactivated with setting data
SD42750 $SC_ABSBLOCK_ENABLE.
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Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions