You asked about the L60 function on another thread. Here is what documentation I have on it. The 15iA,15iB, and 15B are the only controls that I see any type of descriptions for the function.

15i-A/15i-B:
G10 L60 : Periodic maintenance data specification
G10 L61 : Item selection menu (Machine) data specification
P : Item number (1 to 10)
[n] : Specifies an item name enclosed in brackets ([]).
A : Life (0 to 999999)
R : Remaining time (0 to 999999)
Q : Count type
0 : No Count
1 : All Time
2 : Power On
3 : Auto Start
4 : Cutting

Fanuc 15B(Conversational) For setting Menus:
The G10 function (programmable data input function) is used to register machining menu items and data
menu items. A program for registering menu item names must be created as indicated below. By executing
this program, the menu item names are stored in the memory of the control unit. In subsequent operation,
the machining menu items and data menu items are displayed according to this program.
O9859 ;
G10L60P01 ( INITIAL SET ) ; Registration of the machining menu item INITIAL SET, and its data
menu items
G10L61P01Q01 ( Z SAFETY LIMIT ) ;
G10L61P01Q02 ( X START POINT ) ;
G10L61P01Q03 ( Y START POINT ) ;
G10L61P01Q04 ( Z START POINT ) ;
G10L60P02 ( DRILLING ) ; Registration of the machining menu item DRILLING, and its data
menu items
G10L61P02Q01 ( WORK SURFACE ) ;
G10L61P02Q02 ( DRILL DEPTH ) ;
……………………………………
……………………………………
G10L61P02Q–– ( ––––––––––– ) ;
G10L60P03 ( TAPPING ) ; Registration of the machining menu item TAPPING, and its data
menu items
G10L61P03Q01 ( WORK SURFACE ) ;
G10L61P03Q02 ( DRILL DEPTH ) ;
……………………………………
……………………………………
G10L61P03Q–– ( ––––––––––– ) ;
……………………………………
……………………………………
……………………………………
……………………………………
M30 ;

On the 15B L60 and L61 can also be used to set special character codes.