Mitsubishi MELSEC System Q Manual page 101

An Introduction to Programming
Project Navigator Window
Assigning the Global Variables
NOTE If symbolic identifiers are not to be used in the program but only Mitsubishi addresses, then
there is no need to fill out the Global Variable List. However the program will no longer be
truly IEC61131-3 compliant.
The Global Variable List (GVL) is opened.
Enter the identifier and the absolute address of the first Global Variable.You do not need to
enter both the MITSUBISHI address and the IEC address. If one address is entered, the other
one is automatically added by GX IEC Developer.
If a physical input address is entered BOOL is selected as type automatically.
MELSEC System Q Beginners Manual
Programming PLC Applications
Editor (Body)
Double-click Global_Vars in the Project
Navigator Window.
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