Mitsubishi Electric M800VW Series Manual page 633

M800V/M80V Series PLC Development Manual
9 Appendix 3: PLC Function
9.1 Enhanced PLC Security Mode
Limitations of MTB project
The enhanced PLC security mode setting determines what restrictions apply to the input/output of sequence programs and to
the input/output of data values to PLC devices for MTB projects.
For details on the functions available for each mode, refer to "9.1.1.6 Functions Available in Each Mode".
PLC messages
The PLC messages for MTB and the PLC messages for end users, which have been created by MTB and end users
respectively, are treated as different files and can be managed separately. Both of them can be input/output via the NC
standard screen. For details on how to input/output via the standard screen, refer to "5.8 PLC Message Development".
The PLC messages for end users can be displayed only when the E/U mode is enabled. They are not displayed when the E/
U mode is disabled.
It is also possible to input/output PLC messages from GX Developer/GX Works2.
If there are duplicate indices of PLC messages between input methods, only one message is displayed according to the
priorities indicated in the following table.
For both MTB and end users, when they create and write PLC messages from GX Developer/GX Works2, the E/U project
must be the last project of multi-projects.
Message type
Input via the standard
PLC message for MTB screen when the E/U
mode is disabled
Input via the standard
PLC message for end users screen when the E/U
mode is enabled
GX Developer/GX Works2 Input from GX Developer/
PLC message GX Works2
IB-1501614-B
Input method File name
PLCMSG_XXX.TXT
PLCUMSG_XXX.TXT
MXXxxxx.WPG
608
Priority Remarks
1
2 Displayed only during E/U mode
If there are duplicate indices be-
tween projects, the message with
3
the smallest project No is dis-
played.