Rockwell Automation 1772-L8_LW_LWP_LX_LXP,D17726.5.8 User Manual - Manual (Page 137)

RelayĆLike Instructions
Chapter 9
9-11
The following rung shows a nested branch.
Creating nested branches is not possible because the Branch End
instruction completes a branch group. But the above rung shows a single
branch group with two branch end instruction. Above, the Examine On
instruction with the address 11012 is actually a branch group within a
branch group.
The following rung achieves the same result and avoids nested branching:
00
010
00
110
10
110
12
110 110
11
110
13
110
11
Nesting