When are rung comments typically visible to users?

Rung comments in a ControlLogix program are typically visible to all users of the project. This means that regardless of whether a user is simply browsing the program or actively engaging in editing or troubleshooting, comments can provide context and clarity to the logic contained within the rungs.

Comments serve as a valuable reference for understanding the intentions behind specific rungs of logic, thus aiding not only the original programmer but any future users who may work with the program. This accessibility promotes better collaborative efforts in maintaining and modifying the project, ensuring that all team members can take advantage of the established documentation.

In contrast, the other possibilities suggest that visibility is limited to specific times or conditions, which does not reflect the intended design of rung comments to be helpful at all stages of project interaction.