
1. SEQUENCE PROGRAM
CREATING PROCEDURE
B–61863E/15
PMC SEQUENCE PROGRAM
40
The sequence program can be entered in five ways as follows:
(1) Entry with CRT/MDI keys
The sequence program is entered in the ladder diagram format by
pressing the keys of the CRT/MDI.
(2) Entry with keys of SYSTEM P series keyboard
The sequence program is entered in the mnemonic symbol by
pressing the keys of SYSTEM P series keyboard.
(3) Entry from PPR of SYSTEM P series
The sequence program punched on a paper tape is read out of the PPR
and stored in the memory of the SYSTEM P series.
(4) Entry form floppy disk of SYSTEM P series
This method is used when a completed sequence program is slightly
changed. The sequence program written in the floppy disk is stored
in the memory of SYSTEM P series.
(5) Entry form ROM Writer
This method is used when a completed sequence program is slightly
changed. The sequence program written in the ROM is stored from
the PMC Writer or FA Writer into P-G or Debugging RAM.
Check the sequence program and write it into the ROM after check is over.
The sequence program can be checked in two ways.
(1) Check by simulator
Instead of the machine, connect a simulator (consisting of lamps and
switches). Instead of using input signals from the machine, enter
signals by turning on and off the switches according to the machine
movement. Check the output signals on the basis of the activation
of the lamps.
(2) Check by system operation
Perform checks by connecting the machine. Since it sometimes
happens that unexpected operations may be executed depending on
a sequence program, arrange for safety before starting operations.
(3) Writing into ROM
When check of the sequence program is over, write the sequence
program into the ROM. The ROMs to be used are as follows. Then,
the ROM into the CNC unit, and deliver it as a regular product to an
end user. Writing of the sequence program into the ROM,
maintenance and control thereof shall be performed by the machine
tool builder. For this purpose, FANUC provides the PMC Writer or
FA Writer as the ROM writer and the ROM or the ROM module that
is the PC board on which a ROM chip is mounted. Be sure to use
these devices for entering a sequence program in ROMs.
1.7
SEQUENCE
PROGRAM ENTRY
(STEPS 6, 7)
1.8
SEQUENCE
PROGRAM CHECK
AND WRITE INTO
ROM (STEPS 8 TO 11)