Specifications

4-8

4.2 POUs

4.2.6 Ladder blocks

In the structured ladder/FBD language, a program is divided into units of ladder blocks.

In the ST language, ladder blocks are not used.

● Ladder block labels

A ladder block label can be set to a ladder block. A ladder block label is used to indicate a

jump target for the Jump instruction.

Ladder block label

Ladder block

Jump instruction