50
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
2 Overview (Sequence Program)
2.7 Types and Setting of Parameters
3. Entry code setting and access restriction
Caution on selecting the permanent PLC lock
• Once the permanent PLC lock is set, it cannot be reset.
To reset the permanent PLC lock or write programs again to the PLC, all-clear the PLC memory.
Caution on registering the entry code
• The entry codes are provided to restrict access from peripheral equipment to programs created by the
user. Take care to save/remember the entry codes.
If a registered entry code is forgotten, the online operations from the programming tool to the PLC are
disabled depending on the programming tool type and the contents of the registered entry code.
Setting status Peripheral equipment and access restriction
When the permanent PLC lock
is selected
The programming tool performs the following operations in accordance with the selected
registration condition:
Once the permanent PLC lock is set, it cannot be reset.
To reset the permanent PLC lock or write programs again to the PLC, all-clear the PLC
memory.
When the customer keyword is
set
The programming tool performs the following operations in accordance with the selected
registration condition:
It is not possible to cancel the entry code using the customer keyword.
When both the entry code and
second entry code are set
The programming tool performs the following operations in accordance with the selected
registration condition:
When only the entry code is
set
1) When using handy programming panel FX-10P(-E)/FX-20P(-E)
The programming tool performs the following operations in accordance with the head
character of the entry code (in 8 characters):
2) When using any programming tool, data access unit or GOT other than the FX-10P(-E)/
FX-20P(-E)
Read/Incorrect write protection is set for all entry codes.
When no entry code is set All operations are enabled.
Registration condition
Program
Monitoring
Present value
change
Read Write
Write prohibited 3 – 33
Read and write prohibited – – 33
All online operations prohibited
–– – –
Registration condition
Program
Monitoring
Present value
change
Read Write
Write prohibited 3 – 33
Read and write prohibited – – 33
All online operations prohibited
–– – –
Registration condition
Program
Monitoring
Present value
change
Read Write
Write prohibited 3 – 33
Read and write prohibited – – 33
All online operations prohibited
–– – –
Head
character of
entry code
Program
Monitoring
Present value
change
Read Write
All operations
prohibited
A,D to F,0 to 9 – – – –
Read/Incorrect
write
protection
B––33
Erroneous
write prohibited
C 3 – 33
To Next Page
Loading...
