Attention

IronPLC can only run very simple programs. The steps described are accurate but many language features are not yet supported.

Ladder Diagram

Ladder Diagram (LD) is a graphical programming language based on relay logic diagrams. It represents logic as a series of rungs connecting a left power rail to a right power rail, with contacts and coils that implement boolean logic.

Element	Description	Status
Rungs	Horizontal logic lines	Not yet supported
Contacts	Normally open and normally closed contacts	Not yet supported
Coils	Output, set, and reset coils	Not yet supported
Branches	Parallel and series connections	Not yet supported

IEC 61131-3	Section 3.2
Support	Not yet supported