Jumps

Conditional and unconditional jump elements enable controlling the execution of diagrams. Connections cannot be placed to the right of a jump element. When the connection on the left of the jump element has the TRUE Boolean state, the diagram execution proceeds at the label. The label and jump must have the same name.
Inserting backward jumps in the diagram may block the PLC loop.
Example:
ldr_j1
While dragging jumps from either the toolbox or within a diagram, the language editor displays the possible drop points. Drop points are displayed as plus signs in a black circle. For elements, the possible drop points are displayed on the rung. For instance, since a rung can only have one jump, the editor does not display possibilities when dragging another jump onto the rung. However, if a parallel branches are placed on a rung, the editor displays possible locations for jumps on the rung and on all branches.
Drop points on a rung while dragging elements over the rung
ldr_dpjp
Task
Procedure
Insert a jump
Before inserting jumps, define one or more labels within the program. Insert jumps from the
Toolbox
, contextual menus, or using keyboard shortcuts. While inserting or dragging a jump, drop points indicate the possible locations where the jump can be placed on a rung.
  1. From the
    Toolbox
    , drag the jump element into the language container and place it on the rung where a drop point is displayed.
  2. In the language container, click the jump element, then select the required label name from the drop-down combo-box.
Drag a jump
When dragging jumps, the possible drop points on a rung are displayed while moving over the rung.
  • To reposition a jump within the diagram, select the jump while holding down the left mouse button, then drag the jump to the required location on a rung where a drop point is displayed.
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