To enter the ASCII editor mode for a rung, we double-click on the rung we want to edit, or we can select the rung and select “ASCII Edit Mode” from the Edit menu in the toolbar. we can also click on a rung and select the key combination CTRL+A.
In ASCII edit mode, the rung is displayed as a series of text representations of the logic.
We see that the open contact is represented by XIC, or Examine if Closed, followed by the address assigned to the instruction.
The timer is represented by RTO, or Retentive Timer On-delay, followed by the timer address and then the configuration parameters in the order they appear on the graphical timer instruction.
A Cross Reference report identifies everywhere in the ladder program that each data table address is used.
- We can call up the Cross Reference report by double-clicking on the Cross Reference icon just below the Data File item in the project tree.
- We can also call up the Cross Reference for an...
Under Database in the program tree, there are several items that can be used to add or modify descriptions, symbols, and comments.
- We double-click on Address/Symbol, and the “Address and Symbol Editor” opens. We can double-click on any existing symbol or address description, and an editing win...
Whenever the program is saved, the RSLogix program gives the opportunity to add revision notes to the file so that a description of the current revision can be captured.
Entering revision notes is not required but can be helpful later if we need to revert to a previous version.
If these notes e...
