Rockwell Automation 1747-PT1, D1747NP002 Hand-Held Terminal - Manual (Page 91)

Chapter 5
Ladder Program Basics
5–7
Nested branches can be converted into non–nested branches by repeating
instructions to make parallel equivalents.
Example
A B C F
D
E
A B C F
D
E
C
Nested Branch
Non–nested Equivalent Parallel Branch