Add a ladder diagram branch to a routine
    Add a branch to a rung to indicate an OR operation. Instructions that you place in a branch instruct the routine to use either the instruction in the rung or the instruction in a branch or the instruction in a branch level or the next branch level. 
Prerequisites
To add a ladder diagram branch to a routine
- From the Ladder EditorToolbox, drag a branch to a valid drop zone in the rung. Valid drop zones are indicated by to a valid drop zone in the rung. Valid drop zones are indicated by .
            TIP: IfToolboxis not visible, on the pane bar, select .
            TIP: IfToolboxis not visible, on the pane bar, select Toolbox. Toolbox.
- (optional) Add an instruction or branch level to the branch.
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