Operation When Security Functions Are Enabled; When A Security Key Is Set; When A File Password Is Set; Precautions - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

8.5

Operation When Security Functions Are Enabled

This section describes the operation when security functions are enabled.

When a security key is set

When a security key is set to the boot target program file and the security key of the program file does not match with that of
the CPU module, a boot error occurs. Also, when no security key is written to the CPU module, a boot error occurs as well.
Security key of boot target
program file
Set

When a file password is set

If a file password is set on both the source boot file and destination file, the file can be transferred only when the passwords
match. Furthermore, the file transfer does not work if a file password is set only on either one.
Transferring boot file
File File password setting
Existing Set
Not set
8.6

Precautions

This section describes the precautions when using the boot operation.
• When a parameter file is set as boot file, it overwrites the parameter file inside the transfer destination CPU module. In
addition, if a parameter file is not set as boot file even when stored on the SD memory card, the CPU module operates in
accordance with the settings in the parameter file inside it.
• If a program in the program memory is changed online during boot operation, the change is also reflected in the transfer
source program on the SD memory card.
• Note the model of the program written on the SD memory card (program specified in the boot file settings) and the model of
the CPU module must be the same.
• For the boot file setting, check that the setting is consistent with the program/label setting. When the file is read from the
programmable controller after the boot operation without consistency, conversion may not function properly due to lack of
consistency in project data.
Security key of CPU module
Written
Written
Not written
Transferred boot file
File
Existing
Not set
Existing
Not set
Security key match/mismatch
Match
Not match

File password setting
Set
Not set

Set
Not set

8.5 Operation When Security Functions Are Enabled
Boot program execution
Execute
Not execute (boot error)
Not execute (boot error)
Password match/ Transfer
mismatch
Match Yes
Mismatch No
 No
Yes
No
Yes
Yes
8 BOOT OPERATION
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