If the connection points of two symbols are horizontally or vertically opposite one another, connection lines are automatically drawn between them ("Autoconnecting"). Only these autoconnect lines are recognized and reported as electrical connections between symbols. Autoconnecting is only active in schematic pages.
By inserting connection symbols you can influence the form of the automatic connections.
Graphical connection symbols
Purely graphical connection symbols such as angles, T-nodes, double junctions, jumpers, and interruption points are used to display direction changes and connection line junctions in the schematic. Properties such as device, symbol, function, and parts data can't be assigned to these schematic objects. The connection symbols are managed in the SPECIAL.slk symbol library. They do not have function definitions.
Target tracking describes the internal logic of a symbol, i.e. the connection points within a symbol between which a connection runs. It is saved as a property in the symbol.
Logical connection symbols
In addition to purely graphical connection symbols, you can also use connection symbols that represent functions in EPLAN. These connection symbols include connection splicers and line connectors or busbars. Properties such as device, symbol, function, and parts data can't be assigned to these. The properties of these objects can be evaluated and e.g. output in connection lists and / or bills of materials.
See also
Connection Symbols: Representation of the Connection Direction