Data Operation - Fnc 40 To Fnc - Mitsubishi Electric FX3G SERIES Programming Manual

FX /FX /FX Series Programmable Controllers
3G 3U 3UC
Programming Manual - Basic & Applied Instruction Edition
3. Entry code setting and access restriction
Setting status
When the permanent PLC lock is
selected
When the customer keyword is set
When both the entry code and
second entry code are set
When only the entry code is set
When no entry code is set
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.
• In an FX /FX
3U 3UC
keyword and permanent PLC lock are set.
If a memory cassette where the permanent PLC lock is set is used in an FX
than Ver. 2.61, the PLC does not function normally.
If the PLC memory is cleared or the keyword is canceled in an FX
2.61 for a memory cassette where the customer keyword and permanent PLC lock are set, access restrictions set
by the keyword may not be able to be removed normally.
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.
Registration condition
Write prohibited
Read and write prohibited
All online operations prohibited
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.
Registration condition
Write prohibited
Read and write prohibited
All online operations prohibited
The programming tool performs the following operations in accordance with the selected registration
condition:
Registration condition
Write prohibited
Read and write prohibited
All online operations prohibited
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):
Head character
All operations
A,D to F,0 to 9
prohibited
Read/Incorrect
B
write protection
Erroneous write
C
prohibited
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.
All operations are enabled.
PLC whose version is earlier than Ver. 2.61, do not use a memory cassette where the customer
Peripheral equipment and access restriction
Program
Read Write
–
–
Program
Read Write
–
–
Program
Read Write
–
–
Program
of entry code
Read Write
–
–
3U
/FX PLC whose version is earlier than Ver.
3U 3UC
2 Overview (Sequence Program)
2.7 Types and Setting of Parameters
Present value
Monitoring
change
–
–
– – –
Present value
Monitoring
change
–
–
– – –
Present value
Monitoring
change
–
–
– – –
Present value
Monitoring
change
– – –
–
–
/FX PLC whose version is earlier
3UC
1
2
3
4
5
6
7
8
9
10
49