A PBC instruction can be programmed with up to eight levels of nesting.
When a PBC instruction is used within a PBC instruction, nesting level numbers (S1) must be incremented.
(0→1→2→3→4→5→6→7)
To release nesting levels, use a PBR instruction.
(7→6→5→4→3→2→1→0)
For example, if you release the nested PBR 5 without releasing PBR 6 and PBR 7, nesting levels down to the fifth level will be released.
This is nesting level 2. In the previous program, the state is low.
This is nesting level 1. In the previous program, the state is medium.
This is nesting level 0. In the previous program, the state is high.