The boot system load the CNC system software (flash RAM ⇒ DRAM),
then start it so that software can be executed.
For details of the functions and operation of the boot system, refer to the
corresponding CNC maintenance manual.
D FANUC Series 16/18/160/180–MODEL B MAINTENANCE
D FANUC Series 16/18/160/180–MODEL C MAINTENANCE
D FANUC Series 16i/18i/160i/180i–MODEL A MAINTENANCE
D FANUC Series 21/210 MAINTENANCE MANUAL B–62705EN
D FANUC Series 21i/210i–MODEL A MAINTENANCE MANUAL
(1) Memory card interface
The Series 16/18–B/C and Series 21–TB have a memory card
interface on their LCB (loader control) boards. The boot system,
however, uses only the interface on the main board.
The memory card interface on the LCB board is used only for a PMC
ladder editing card. Insert the ladder editing card before power–up.
For ladder editing, refer to ”FANUC PMC LADDER
PROGRAMMING MANUAL (B–61863E).”
(2) Flash ROM
In the Series 16/18, the flash ROM on the LCB board should store just
a P–CODE macro file for loader control. Store a ladder file in the flash
ROM on the main board.
The table below lists the loader control files and their storage
File type Storage location
Loader PMC ladder program Main flash ROM
Loader P–CODE macro file LCB flash ROM
When using the Series 21, select a board on the Boot Slot
Configuration screen. When handling (entering, deleting, etc) a main
file, select MAIN (main board). When handling a loader file, select
LCB (loader control board).
File type Board selection
Main PMC ladder MAIN
Main P–CODE macro file MAIN
Loader PMC ladder LCB
Loader P–CODE macro file LCB
The Series 16i/18i/21i has no flash ROM on its LCB board. Both a
loader PMC ladder program and P–CODE macro file are stored in the
flash ROM on the motherboard.
Boot System for
and Series 21–TB,
D Memory card interface
and flash ROM on the