WindLDR DEMO 5.3

WindLDR DEMO is a Windows-based evaluation edition of the WindLDR programming environment for programmable logic controllers (PLCs). It lets you create, edit, and test control programs—primarily in ladder logic and function block diagrams—so you can explore the workflow and feature set before deploying to real hardware. The demo emphasizes usability with tag-based addressing, drag-and-drop instructions, and clear diagnostics to help you design reliable control sequences quickly.

Key capabilities:

• Ladder and function block editors with rung comments, tag-based variables, and cross-references
• Built-in simulator for offline testing, including forcing I/O, watch windows, and step/run controls
• Standard PLC instruction set (timers, counters, comparisons, math, data handling, and more)
• Project tools for search, documentation, and version comparison to aid maintenance and reviews
• Hardware and communication setup wizards for common interfaces, configured offline

Typical demo limitations:

• Intended for evaluation and training; some online features may be disabled
• Downloading to physical PLCs or project size/scope may be restricted

Use it to prototype logic, validate ideas, train new users, or assess compatibility with PLC families supported by the full WindLDR platform.

WindLDR DEMO is developed by IDEC. The most popular versions of this product among our users are: 5.0, 5.2 and 5.3. The name of the program executable file is WINDLDR.EXE.