The Connection Restriction On Gx Developer/Gx Works2; File Password; Relationship With Other Functions; Built-In Plc (Built-In Edit Function) - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
9 Appendix 3: PLC Function
9.1 Enhanced PLC Security Mode

9.1.1.7 The Connection Restriction on GX Developer/GX Works2

When the connection restriction on GX Developer/GX Works2 is enabled, connections to the built-in PLC from GX Developer/
GX Works2 are prohibited.
Unlike the enhanced PLC security mode, connections from PLC on-board are not prohibited.
Note that it is not possible to connect to the E/U project when the connection restriction on GX Developer/GX Works2 is
enabled, even if the E/U mode is enabled.

9.1.1.8 File Password

A file password is a four-digit password of a file in the built-in PLC. A file password is set from GX Developer/GX Works2.
There are two attributes for a file password, read/write protect and write protect. To perform write operations and read
operations from PLC on-board or GX Developer/GX Works2, the file password must be disabled.
By setting a file password, you can protect resources such as sequence programs and PLC messages in the built-in PLC.
For details on setting a file password, refer to "5.12 File Password Function".
Relationship with enhanced PLC security mode
[PLC write protect mode]
Although registering and clearing the file password of a file in the built-in PLC from GX Developer/GX Works2 are prohibited,
disabling the file password and reading a file are allowed.
[PLC read/write protect mode]
Registering, clearing, and disabling the password of a file in the built-in PLC from GX Developer/GX Works2 are prohibited.
[E/U mode]
Registering, clearing, and disabling the password of a file in the E/U project from GX Developer/GX Works2 are allowed.
Since the enhanced security mode does not apply to the E/U project, end users must set a file password to protect each file.

9.1.2 Relationship with Other Functions

9.1.2.1 Built-in PLC (Built-in Edit Function)

When the enhanced security mode is active, restrictions apply to the input/output between the built-in PLC and PLC on-board.
Note that built-in edit function can be started for E/U project irrespective of the enhanced security mode setting and password
status.
For details on the PLC on-board function, refer to "6 Explanation of Built-in Editing Function (PLC On-board)".

9.1.2.2 Built-in PLC (Peripheral Development Environment)

When the enhanced security mode is enabled, restrictions apply to the input/output between the built-in PLC and GX
Developer.

9.1.2.3 Built-in PLC (Peripheral Development Environment (GX Works2))

When the enhanced security mode is enabled, restrictions apply to the input/output between the built-in PLC and GX Works2.
For details on DX Works2 functions, refer to "5 Peripheral Development Environment (GX Works2)".

9.1.2.4 Protection Setting Screen

The following changes can be made on the protect setting screen.
- Changing operation level
- Changing password for each operation level
- Changing protective level for each data Changing protective level for each data To certainly secure programs which are
managed by the MTB, change the default password for MTB to another one.
For details on the protect setting screen, refer to "M800VW/M80VW Series Connection and Setup Manual".
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