Siemens SINUMERIK 840D sl Function Manual page 717

CSCALE()
A spindle can only be assigned to one rotary axis at a time. The CROT(..) function can
therefore not be programmed withSPI(), as only geometry axes are permitted forCROT().
The channel axis name or machine axis name of the axis belonging to the spindle is always
output when decompiling frames, even when axis names have been programmed in the part
program with SPI(..).
If the spindle is assigned e.g., to the Channel Axis A then the programming:
N10 $P_UIFR[1] = CTRANS(SPI(1),33.33,X,1):CSCALE(SPI(1),
33.33):CMIRROR(SPI(1))
during recompilation:
$P_UIFR[1]=CTRANS(X,1,A,33.33):CSCALE(A,33.33):CMIRROR(A)
If a spindle and an assigned axis are programmed in a frame command, then Alarm 16420
"Axis % multiply programmed" is output.
Example:
$P_UIFR[1] = CTRANS(SPI(1),33.33,X,1,A,44)
(The spindle is assigned to Axis A.)
Programming examples
$P_PFRAME[SPI(1),TR]=22.22
$P_PFRAME=CTRANS(X, axis value,Y,axis value,SPI(1),axis value)
$P_PFRAME=CSCALE(X,Scale,Y,scale,SPI(2),scale)
$P_PFRAME=CMIRROR(S1,Y,Z)
$P_UBFR=CTRANS(A,10):CFINE(SPI(1),0.1)
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
K2: Axis Types, Coordinate Systems, Frames
10.5 Frames
717