Rockwell Automation DeviceLogix System User Manual - Manual (Page 97)

Publication RA-UM003B-EN-P - February 2010 97
Navigate the Old Ladder Editor Interface Chapter 4
Rung Element
Rung Elements
Element Description
Rung Element -The basic executable unit in the old Ladder Editor. Each rung
has at least one input condition and one output condition. The True or False
value of an input determines the output value. You can add a comment to a
rung to clarify or describe the instruction.
Branch Element - Connection element that adds OR logic in the old Ladder
Editor. The branch element always resides on a rung element and,
therefore, cannot exist without the rung element.
Branch Level Element - Connection element that adds OR logic in the old
Ladder Editor. The branch level element can reside on a branch element or a
branch level element. The branch level element can also store instructions.
Branch
Branch Level