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As described in the previous sub-topic, only one line is normally drawn to a connection point of a conventional device. That line may symbolise one or two physical wires. In the latter case, one will be "in-going" and one will be "out-going", as parts of a wire-chain.

 

For terminals, the situation is however quite different. Lines can be drawn to terminal symbols in at least two directions. Each line may represent up to two wires (in and out). This means that you can have up to four wires connected to each terminal. Please note that when lines hit the terminals from different directions, they also represent different sub-nodes, but the same node.

 

Even if it may in some cases be a violation of the IEC standard, it is possible in cadett ELSA to draw lines to a terminal "from the sides" as well. If you do that, you can have up to four lines connected to the same terminal, each one representing up to two wires. That means up to eight wires.

 

To make matters worse, or even better if you prefer to see it that way, it is in fact also possible to draw lines to a terminal in a 45 degree angle. If you utilise that method as well, you may have up to eight lines to one single terminal, representing a total of up to 16 wires. That is however a clear violation of both standard and good practice. It would also be associated with many other disadvantages and is therefore not recommended.

 

Besides from all this, terminals are divided in an internal and an external side. That is, however, a chapter of its own.