- Studio 5000 Logix Designer
- Tasks, programs, and routines
- Add-On Instructions
- Controller Organizer
- Logical Organizer
- Alarms
- Tag-based alarms
- Tag Editor and Data Monitor
- Configure settings for Tag Editor and Data Monitor
- Equipment phases
- Equipment Sequences
- Equipment Sequence Diagrams
- Ladder Editor
- Structured Text Editor
- Sequential Function Chart Editor
- Define the steps of an SFC process
- PlantPAx instruction properties
- Controller Properties
- Editing Controller Properties
- Controller Security
- Source Protection
- License Source Protection for Routines and Add-On Instructions
- Module Information
- 1756 ControlLogix I/O Modules
- Instruction Set
rung
rung
The composition of ladder logic. Ladder logic is comprised of a set of rungs. A rung is made up of several components, which are:
- rung number
- left and right power rails
- rung wire
- rung state indicator
- rung comment (optional)
In addition, the area to the left of the power rail is called the rung selection region.
The last rung in a routine is called the End rung. This rung contains no instructions and its rung number is "End." By default, this rung is black, though you can change it. This rung is not actually part of your routine. It symbolizes the end of the routine. You cannot complete any editing functions if you are located on this rung.
During Run mode, the inputs on a rung are evaluated to be True or False. If a path of true logic exists, the outputs are made True; if all paths are false, the outputs are made False.
Provide Feedback