Selecting FBD variables and instances
To select the name of the declared variable to be attached to a graphic symbol, you must be in Selection mode. Simply double-click on the tag name gray area. The following types of object must be linked to valid symbols:
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Block: If it is a function block, you must specify the name of a valid declared instance of the corresponding type. |
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Variable: Must be attached to a declared variable. Alternatively, a variable box may contain the text of a valid constant expression. |
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Label: Must have a name. The name must be unique within the diagram. |
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Jump: must have the same name as its destination label. |
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Contact: Must be attached to a declared Boolean variable. |
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Coil: Must be attached to a declared Boolean variable. |
Symbols of variables and instances are selected using the variable list, that can be used as the variable editor. You can simply enter a symbol or constant expression in the edit box and press OK. You also can select a name in the list of declared object, or declare a new variable by pressing the Create button.
Selecting FBD variables and instances |
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IEC 61131-3 Automation platform > IEC 61131-3 Programming Environment > Editing programs > Function Block Diagram (FDB) Editor > Selecting FBD variables and instances |
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