Siemens SINUMERIK 840Di Function Manual page 787

Frame suppressions SUPA, G153 and G53 lead to the WCS, SZS and possibly the BZS
jumping when frame suppression is active.
The machine data
MD24020 $MC_FRAME_SUPPRESS_MODE
enables this characteristic for the position display and the predefined position variables to be
changed.
The settings below can be made with MD24020 $MC_FRAME_SUPPRESS_MODE:
Bit 0:
Bit 1:
When the bit is set, the position for the display or the variables is calculated without frame
suppression so that no further jumps in the position occur.
Axis Types, Coordinate Systems, Frames (K2)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Positions for display (OPI) are without frame suppression.
Position variables are without frame suppression.
Detailed Description
2.4 Frames
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