Block Passwords For Plc Data; Simultaneous Connection Of Plc On-Board And Gx Developer/Gx Works2 - Mitsubishi Electric M800VW Series Manual

M800V/M80V Series PLC Development Manual
6 Explanation of Built-in Editing Function (PLC On-board)
6.6 PLC Data

6.6.3.2 Block Passwords for PLC Data

Block password is set for each POU such as FB when PLC data is a project with labels or a structured project. Block
password can be temporarily unlocked as file password for PLC on-board.
Note
(1) PLC on-board cannot be used to register, change, or delete file passwords.
Perform the following operations on GX Works2. Refer to "GX Works2 Operating Manual (Common)" and "GX Works2
Operating Manual (Simple Project)".
Block password attribute
Block password can be set only for reading/writing. Prohibited operations are as follows:
Attribute
Read and writes not allowed
Block password cancel method
By the following operations, "Password cancellation" screen is displayed.
Data protection mechanisms can be temporarily cleared by entering the password on the screen.
POU screen
Monitor ladder
Valid period of block password clears
Block passwords are set for POU. When clearing a block password cancels all block passwords of instance that use the same
POU.
Block password is cleared until the following operation is executed.
 Returning to the password not entered state (Refer to " Returning to the block password not entered state method")
 Opening CNC symbolic information again
 Changing the connection project
Password cleared state is maintained until the symbolic information is open again even when the block password set to the
CNC POU is changed with GX Works2. Changed block password is valid after reopening CNC symbolic information.
Returning to the block password not entered state method
The following operations can return the block password not set state.
NC file operation ⇒
External File Operation ->

6.6.3.3 Simultaneous Connection of PLC on-board and GX Developer/GX Works2

Do not connect PLC on-board and GX Developer/GX Works2 simultaneously.
The operation for PLC data in the NC if reading and writing are performed with GX Developer/GX Works2 and PLC on-board
simultaneously cannot be guaranteed.
The monitor function such as circuit monitor can be used simultaneously.
Find POU, Display of FB instance monitor
Ladder display of program block
Operations
Block Password Disable
Find
FB Instance Monitor
Switch Program
Operation
Open -> Open
"PASSWORD CANCELLATION" popup screen ⇒ PWD lock for all data
File List ⇒ POU ⇒ PWD lock for all data
External -> NC -> Execute
"PASSWORD CANCELLATION" popup screen ⇒ PWD lock for all data
Restricted operation
Block password cancel
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