How to Edit Fanuc 8000 & 9000 Programs

How to Edit Fanuc 8000 & 9000 Programs

Overview

By default, 8000 and 9000 programs are protected and cannot be edited. Enabling a parameter is required to edit 8000 and 9000 programs. 
It is absolutely critical you know what you are doing when working with 8000 and 9000 programs. Changing or deleting a protected program can render the CNC machine inoperable and may require a qualified machine technician to repair it. 

Controls

  1. Fanuc 16-M, 16-T, 16i-M, 16i-T, 16i-MB, 16i-TB, 160i-MB, 160i-TB, 160is-MB, 160is-TB
  2. Fanuc 18-M, 18-T, 18i-M, 18i-T, 18i-MB, 18i-TB, 180i-MB, 180i-TB, 180is-MB, 180is-TB
  3. Fanuc 21-M, 21-T, 21i-M, 21i-T, 21i-MB, 21i-TB, 210i-MB, 210i-TB, 210is-MB, 210is-TB
  4. Fanuc 0i-M, 0i-T, 0i-MB, 0i-TB, 0i-MC, 0i-TC, 0i-MD, 0i-TD, 0i-MF, 0i-TF
  5. Fanuc 30i Model A, Model A5, Model B, Model B5
  6. Fanuc 31i Model A, Model A5, Model B, Model B5
  7. Fanuc 32i Model A, Model A5, Model B, Model B5
  8. Essentially any Fanuc control manufactured since the late 90s
Notate or take a picture of any parameters before you change them

Enable Editing of 8000 & 9000 Programs

  1. Put control in MDI mode
  2. Press OFFSET/SETTING (aka OFS/SET) button until you see the SETTING (HANDY) page
    1. If you do not see the SETTING (HANDY) page, either press the SETTING softkey or press OFFSET/SETTING until you do see it
  3. Set PARAMETER WRITE (PWE) to "1"
  4. Press SYSTEM button
  5. Press PARAMETER softkey
  6. Go to parameter "3202"
  7. Change the following bits as needed:
    1. To enable editing of 9000 programs, change bit 4, i.e. NE9, to 1 (xxx0xxxx)
    2. To enable editing of 8000 programs, change bit 0, i.e. NE8, to 1 (xxxxxxx0)
    3. To disable editing of 9000 programs, change bit 4, i.e. NE9, to 0 (xxx1xxxx)
    4. To disable editing of 8000 programs, change bit 0, i.e. NE8, to 0 (xxxxxxx1)
  8. Press OFFSET/SETTING button
  9. Set PARAMETER WRITE (PWE) to "0"
  10. Press RESET button to clear alarm

Bits are read from right to left, starting at 0
Bit 0 = xxxxxxxX
Bit 1 = xxxxxxXx
Bit 2 = xxxxxXxx
Bit 3 = xxxxXxxx
Bit 4 = xxxXxxxx
Bit 5 = xxXxxxxx
Bit 6 = xXxxxxxx
Bit 7 = Xxxxxxxx