Ladder logic still has the edge in visual troubleshooting, but the shear efficiency and interoperability of higher-level languages will be enticing.

The ladder diagram shows you what the inputs and outputs are, and it shows how each output responds to a given input change. This is, in fact, what makes a ladder diagram especially useful for ...

In the case of ladder logic, logic functions are implemented by developing a ladder diagram. Named for its resemblance to a ladder, the diagram consists of two vertical rails connected by several ...