Channel­specific System Frames - Siemens SINUMERIK 828D Function Manual

K2: Axis Types, Coordinate Systems, Frames
10.5 Frames
The fine component is transferred on saving the programmable frame in a local frame variable (LUD or GUD) and
on rewriting.
The table below shows the effect of various program commands on the absolute and additive translation.
TRANS X10
ATRANS X10
CTRANS(X,10)
CTRANS()
CFINE(X,10)
$P_PFRAME[X,TR] = 10
$P_PFRAME[X,FI] = 10
G58 X10
G59 X10
10.5.5.7 Channel­specific system frames
Channel­specific system frames
System frames are only described by system functions, such as PRESET, scratching, zero offset external and
oblique processing. There are up to seven system frames per channel.
The valid system frames in the channel can be defined via machine data:
MD28082 $MC_MM_SYSTEM_FRAME_MASK (System frames SRAM)
Only system frames required for system functions should be configured, in the interests of memory space. Per
channel, each system frame occupies approx. 1 KB SRAM und approx. 6 KB DRAM. The system frame for
PRESET and scratching and the system frame for cycles are the default. Channel-specific system frames are
configured as bit codes, in accordance with the table below:
Bit Default
0 1
1 0
2 0
3 0
4 0
748
Coarse or absolute translation Fine or additive translation
10
Unchanged
10
0
0
10
Unchanged
10
Unchanged
System frame
PRESET and scratching
Zero offset external via system frames
TCARR and PAROT with an orientational toolholder
TOROT and TOFRAME
Frame for workpiece reference points
0
alt_fine + 10
0
0
10
Unchanged
10
Unchanged
10
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions