SFC Element: Jump
Symbol: 
A jump defines which step should be executed next as soon as the transition preceding the jump becomes TRUE. Jumps may be necessary because the execution paths cannot cross and cannot lead upwards.
Besides the required jump at the end of the chart, you can only insert jumps at the end of a branch.
The target of a jump is defined by the added string, which you can edit directly. The jump target can be a step name or the marker of a parallel branch.
For more information, see the following: Programming in SFC
