At least in Europe we use a little different schematic representation for PLCs: each I/O, power supply or whatever else is a represented by a single symbol. This is of course possible in AutoCAD Electrical. Additionally, we have a 'main' symbol which displays all the I/Os, etc. with I/O text and address and a cross reference to the page and line there the I/O is located in the project. Often, all 'main' symbols placed on a single page (and consecutive).
