What is a .LLD file?
The .LLD file extension refers to a "Logo! Soft Comfort LAD File," which is a type of file created by the Logo! Soft Comfort software. This software is primarily used for automation tasks, specifically for designing and testing circuit programs. The .LLD file contains a Ladder diagram, or LAD, which visually represents the components of a circuit program. This diagram includes various elements such as inputs, outputs, timers, counters, and other functions, all of which are crucial for automating tasks in an industrial setting.
To view or edit an .LLD file, you need to use the Siemens Logo! Soft Comfort software, specifically version 8 or later. This program provides a user-friendly interface resembling a drawing board, where you can easily place and connect different elements to build complex control programs. The software also offers features like text formatting, diagram editing, and simulation tools to help you create and refine your circuit programs.
Here’s how you can manage .LLD files in the Siemens Logo! Soft Comfort software: 1. **Creating an LLD File:** - Open Siemens Logo! Soft Comfort. - Go to File → New → Ladder diagram (LAD). - Design your diagram by placing and linking the required elements. - Once your diagram is complete, go to File → Save or Save As... - Choose the location where you want to save the file (it usually defaults to the "Program" folder). - Name your file and click Save.
2. **Opening an LLD File:** - Double-click the .LLD file if Siemens Logo! Soft Comfort is set as the default program for this file type. - Alternatively, open Siemens Logo! Soft Comfort, go to File → Open..., navigate to your file, select it, and click Open.
3. **Converting an LLD File:** - If you need to change your diagram type from a Ladder diagram to a Function Block Diagram (FBD), - Open your .LLD file, then go to File → Convert to FBD. - This will transform the layout of your diagram. You can then save the new diagram as an .LSC file, which is specifically for Function Block Diagrams.
It's important to note that .LLD files are similar to .LSC files, but they serve different purposes based on the diagram type (Ladder vs. Function Block). If you are more familiar with using
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