ISPSoft User Manual 8.2.4 Applications of Structures After the structure and symbol are declared, they can be used in the POU. The data type of the symbol struct_var0 is Struct_0 in the function block as the image shown below. Users can use “.” to assign the member for the structure symbols, for example struct_var0.pt1 means the first member pt1 is assigned as a pin to the data type WORD operand as the image shown below. contact to the data type BOOL operand and struct_var0.pt2 means the second member pt2 is assigned as a When using the aforementioned function block, Struct_0 data type symbol should be declared in the POU, so 8-6