How to Edit TP Programs in a Text Editor with LS Files

In this video, we walk through a practical and efficient approach to editing FANUC Teach Pendant programs using a standard text editor and then loading those updates back into the robot controller. Led by Brian Totonchi, Associate Engineer in the Robot Segment at FANUC America, this session focuses on simplifying program adjustments outside of the Teach Pendant while maintaining full compatibility with the robot system.

We will go over the full workflow using a simple pick and place example, making it easy to follow along whether you are new to program editing or looking to streamline your current process. The video highlights how to move between TP and LS file formats, how to safely export a program, and how to make meaningful edits that improve flexibility and efficiency. Along the way, we also touch on common challenges and how to resolve them so you can work with confidence.

By leveraging the ASCII Program Loader option and a USB drive, we demonstrate how to transfer files between the robot and a computer environment for easier editing. You will see how LS files provide a readable format that allows for faster updates to motion logic, comments, and positional data. We will also walk through how the controller processes these changes when the updated file is reloaded.

This video is designed to give you a clear and approachable overview without overwhelming detail, while still preparing you to apply what you learn in a real-world setting.

Requirements:

• FANUC robot with Teach Pendant access
• USB drive for file transfer
• ASCII Program Loader software option R796
• A basic text editor such as Notepad
• Access to a sample or existing TP program

What you will learn:

• How to export a Teach Pendant program to a USB drive
• The difference between TP and LS file formats and why it matters
• How to safely edit program content using a text editor
• Ways to modify motion instructions and position data
• The process for uploading and overwriting programs on the robot
• Common error messages and how to troubleshoot syntax issues

If you are looking to improve efficiency and gain more control over your robot programming workflow, this video provides a strong starting point.