Hi,
Check parameters 6700 - 6713 for the part count and total parts.
Fanuc Parameter Manual GFZ-63530 (Fanuc 18i Manuals User Guides - CNC Manual )
these are for my Fanuc 18i-TB twin turret - twin spindle:
Main spindle:
N06700 P 00000000
N06710 P 0
N06711 P 154 (machined parts)
N06712 P 976071 (total parts)
N06713 P 0
Sub spindle:
N06700 P 00000000
N06710 P 0
N06711 P 145
N06712 P 972644
N06713 P 0
Regards,
Heavy_Metal.