The parametric process uses a small set of library symbols to generate the stack sequence.
When you select a PLC module to insert, the program uses the PLC database information to: During the insertion process, you can interrupt it to break the module and then restart it at a different location.
As AutoCAD Electrical toolset builds the module, it reads the underlying ladder rung spacing and spreads out the stack or compresses it to match the rung spacing. The PLC database contains the stack sequence and text values to annotate onto each symbol in the stack.
