Hello All,
I could understand the most in use of Modelica including of writing my own coding for user-defined blocks.
So far I have used the "extend" with selection of ready (built-in) interfaces in the Modelica library in order to have trouble-free block coding (easy involvement of input/output interfaces). In example: in order to have a block with boolean input and output, I added the code of 'extends Modelica.Blocks.Icons.BooleanBlock;' in my block code, then added the equation I wanted.

Now I need to have more flexibility in my block constitution with various types of interfaces (input and output) at various numbers. One example, I want to form a block with boolean and real inputs; and real output. How can I establish a connection between these inputs and output, both being different types (connection of boolean input with real output).

When extend is used with the built-in interfaces of blocks, you don't need to write a code with connect() operator. I want the same [no use of connect()] for my custom block codes without use of built-in block interfaces. Just simply, I want to add the input/s and output/s as much as I want and then I want to put the mathematical expression (equation) as textual code which calculates by use of the input/s and its result will determine the output.

Thanks in advance.