System Protect; Restrictions ••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••6 - Mitsubishi Q00JCPU User Manual

6
FUNCTIONS

6.19 System Protect

The CPU model has a few protection functions (system protect) to prevent the program
changes by a third party other than the designer (from GX Developer function or serial
communication module).
Basic
Note6.44
Basic
Note6.44
Basic
Note6.45
Note45
Basic
Note6.44
Note46
Basic
Note6.45
6
6.19 System Protect
- 117
Item to protect Protect valid file
Note6.44
All files
All of CPU
Memory card
All files
Note6.44
module
Programs
Device comments
File module
Device initial
values
* The control instruction, read/write display, and write mentioned above are as follows:
Item
Control instruction
Read/Write display
Write
POINT
The following functions set the "(PLC) Parameter" and CPU module dip switches
are performed even when the CPU module system's SW1 setup switch is set to
ON and the system protect function is activated.
• Booting from the standard ROM and the memory card
• Automatic write to standard ROM
The Basic model QCPU does not support the system protection on a whole CPU and memory
card basis.
Since the Basic model QCPU does not include the system protect function by DIP switch setting,
it is not necessary to be conscious of the restrictions described in POINT.
Note45
Table6.31 System protect types
Protection description
Prohibits all write/control
instructions to the CPU
module
Performs drive protect for
the memory card, and write
protect.
Changes the attribute for
each file as follows:
• Read/Write display
prohibit
• Write prohibit
CPU module operation instruction by remote operation. (Remote
RUN, remote STOP, etc.)
Program read/write operations.
Operation related with write processing such as program writes the
program and tests.
Valid
Method
Timing
Set the CPU module
system setting switch Always
SW1 on.
Set write-protect switch
on the memory card Always
on.
Change the attribute
for the file in the Always
Password Registration.
Description
Note6.45
Note46
Remarks
Valid for
devices too
--
--