Panasonic FP-M Hardware Manual page 130

6-2. Troubleshooting
When "PROTECT ERROR" is displayed
1 1 When memory (EPROM) or master memory (EEPROM) is installed in the FP-M control board
If memory (EPROM) or master memory (EEPROM) is installed on the FP-M control board, the program cannot be
modified.
Proceed with program modification as follows:
First, turn OFF the power of the FP-M
control board.
Then, remove the memory (EPROM)
or master memory (EEPROM) from the
FP-M control board.
Modify the program using a
programming tool.
Save the modified program to the
memory (EPROM) or master memory
(EEPROM) and start operation again.
(Refer to page 103, "5-6. RAM and
ROM Operations", for details about
ROM operation.)
2 2 When a password is set for the programmable controller
Change the setting of the password
using a programming tool.
122
• Using NPST-GR Software Ver. 3.1
<If you are using MENU 1 screen type>
Open [NPST MENU] by pressing the
Esc key, and then select "PLC
CONFIGURATION" to skip to the [PLC
CONFIGURATION] subwindow.
In the [PLC CONFIGURATION]
subwindow, select "5. SET PLC
PASSWORD".
In the [SET PLC PASSWORD] window, select ENAB and press the Enter key to set
the mode of the password setting to enable saving and loading of the program.
• Using FP Programmer II
Press the keys on the FP Programmer II
as shown on the right.
<If you are using MENU 2 screen type>
Open [NPST FUNCTION MENU] by
pressing the Esc key in the ONLINE
mode, and then select "SET PLC
PASSWORD".
(–)
ACLR 7 2 ENT
OP
3 4 WRT
1 2
Password (e.g., "1234")
1
(HELP)
CLR