margin: 0px; padding: 6px; border: 1px inset; width: 640px; height: 226px; text-align: left; overflow: auto">[Ladder Section Name : Section1][Ladder Section Name : Section2][Ladder Section Name : Section3]ERROR: Step at rung 16 (6, 1) - SBN not defined - 41[Ladder Section Name : Section4][Ladder Section Name : Section5][Ladder Section Name : Section6]WARNING: SBN without RET at rung 98 (6, 0)WARNING: Nested SBN at rung 104 (6, 0)ERROR: Step at rung 104 (6, 0) - Invalid in SBN[Ladder Section Name : Section7]NewProgram1 - 2 errors, 2 warnings.I've erased PLC program, and couldn't restore from backup. In fact, do not seem for any error. When I delete the relevant part, error goes to the next subroutine. How can i solve this? Sorry for my bad English. orjinal program.zip