Yes. WindLDR is a free download from IDEC's website with no license fee or activation key required.

What USB driver does WindLDR use?

WindLDR uses a USB-to-serial driver included in the installation package. It installs automatically on most Windows systems.

How to Install WindLDR and Connect to an IDEC FC6A PLC

Quick Answer

WindLDR is free PLC programming software from IDEC. Download it from the IDEC website, install on Windows, create a project matching your FC6A CPU model, and connect via USB or Ethernet to go online.

Downloading WindLDR

WindLDR is available as a free download from IDEC's global website. No license key, registration fee, or activation is required. This is a significant advantage over competitors — Rockwell's Studio 5000 and Siemens TIA Portal both require paid licenses.

System Requirements

Windows 10 or Windows 11 (64-bit)
.NET Framework 4.6.2 or later
USB port (for USB connection to FC6A)
Ethernet port (for TCP/IP connection)
1 GB free disk space

Installation Walkthrough

Download the WindLDR installer from the IDEC website.
Run the installer as Administrator.
Accept the license agreement and select the installation directory.
Complete the installation — the USB driver is included and installs automatically.
Launch WindLDR from the Start menu or desktop shortcut.

Creating a New Project

Select File > New.
Choose the CPU type matching your physical FC6A model (e.g., FC6A-C40R1AE for a 40-point Plus type with relay outputs).
Select the I/O configuration to match any installed expansion modules.
Name the project and save.

Connecting via USB

Connect a USB cable between the PC and the FC6A USB port.
Windows should recognize the device and assign a COM port.
In WindLDR, select Communication > Communication Settings.
Select USB and the assigned COM port.
Click Connect to go online.

Connecting via Ethernet

Connect the FC6A Ethernet port to the same network as the PC.
The FC6A default IP is typically 192.168.1.1 — verify or set the IP in the FC6A's onboard display or via USB connection first.
In WindLDR Communication Settings, select Ethernet and enter the FC6A's IP address.
Click Connect.

Going Online

Once connected, WindLDR enters monitor mode where you can view live values, force I/O, and modify the program. The status bar shows the connection state, CPU mode (RUN/STOP), and scan time.

Firmware Version Check

In WindLDR, go to Communication > System Settings to view the FC6A firmware version. If a firmware update is needed, download the update file from IDEC's website and apply it through WindLDR while connected via USB.