Siemens SINUMERIK 840D sl Programming Manual page 331

Access to the individual components of the fine offset is achieved through component
specification FI (Translation Fine).
DEF REAL FINEX
FINEX=$P_UIFR[$P_UIFNUM, x, FI]
FINEX=$P_UIFR[3, x, FI]$P
Significance
CFINE(x, value, y,
value, z, value)
CTRANS(x, value, y,
value, z, value)
x y z
Value
Machine manufacturer
The fine offset can be configured in the following versions using MD18600 $MN_
MM_FRAME_FINE_TRANS:
0:
The fine offset cannot be entered or programmed. G58 and G59 are not possible.
1:
Fine offset for settable frames, basic frames, programmable frames, G58 and G59 can be
entered/programmed.
Description
A fine offset changed with the HMI operation does not apply until after activation of the
corresponding frame, i.e. activation via G500, G54...G599. Once activated, a fine offset of a
frame remains active the whole time the frame is active.
The programmable frame has no fine offset. If the programmable frame is assigned a frame
with fine offset, then the total offset is established by adding the coarse and the fine offset.
When reading the programmable frame the fine offset is always zero.
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
5.3 Coarse and fine offsets (CFINE, CTRANS)
;Definition of the FINEX variable
;Fetching the fine offset
;using the FINEX variable
;Fetching the fine offset
;of the X axis in the 3rd frame
;using the FINEX variable
Fine offset for multiple axes. Additive offset (translation).
Coarse offset for multiple axes. Absolute offset (translation).
Zero shift of the axes (max. 8)
Translation part
Coordinate transformation (FRAMES)
331