<< Click to Display Table of Contents >> Navigation:  Drawing Environment > Detailed command descriptions > Terminals > General description of terminals in cadett ELSA > Inheritance of terminal group name and index

As mentioned before, terminals typically exist in “herds”. A terminal strip is normally drawn so that the terminal group name is shown only for the first terminal. For the rest of the terminals, the name is left out. Anyone reading the circuit diagram will still understand that all terminals in the strip have the same terminal group name. In cadett ELSA, this is solved in such a way that each terminal is a symbol of its own, and the terminal group name is in most cases specified only in the first symbol. In the remaining symbols, the terminal group name is left empty.

 

 

The OnLine Engine enables a so-called “inheritance” of terminal group names and indexes of terminals. This means that if the terminal group name is empty, the name will be fetched from the previous terminal. If the terminal group name is empty there too, the name will be inherited from the one before that, and so on.

 

The same inheritance mechanism is also used for the index, which defines the type of terminal, like supplier and ordering number. The index is inherited from the same terminal as the terminal group name.

 

The inheritance is normally made firstly from left to right, and secondly from top to bottom, which is suitable for vertical circuit diagrams. For horizontal circuit diagrams, the priority of the inheritance mechanism must be changed, to be from top to bottom in first hand, and from left to right in second hand. It is possible to define that priority separately for each drawing sheet. This is made with a special symbol, that is described in the Horizontal terminal numbering topic.