Key Features

  • Function blocks
  • Drag and drop simplicity
  • Compatible Windows XP, Vista and Windows 7 32-bit and 64-bit OS
  • Offline program simulation
  • Boolean logic
  • Tag name editor

WindLGC is the exclusive programming software for the IDEC SmartRelay using Windows®.  Now supporting Windows 7 32-bit and 64-bit operating system.


Create, simulate, test and save your program in just a matter of seconds using drag and drop functions.


Choose either function block or ladder programming, but keep in mind that you can always convert from one to the other with just the click of an icon. Offline program simulation (without the need for an actual unit) enables testing of the entire program from a PC, or you can test and monitor your IDEC SmartRelay online.


You can create and save your WindLGC program as a .pdf or .jpg file. Professional documentation is included with all necessary configuration information such as comments and program settings.

WindLGC Downloads

UPGRADE Software

Upgrade the existing WindLGC installation to the current version to use new features and enhancements including programming the latest IDEC SmartRelay CPUs.

Demo Software

Try the full version of WindLGC software free! This demo software has no time limit and can be used to create and save projects. The only limitation is that it has no communication so you will not be able to download or upload projects to IDEC SmartRelay and you can not do online Monitor.

UPGRADE for Windows 32-bit OS

DEMO for Windows 32-bit OS
ZIP Download Upgrade version 8 (72MB)
ZIP Download Demo (72MB)
UPGRADE for Windows 64-bit OS
DEMO for Windows 64-bit OS
ZIP Download Upgrade version 8 (72MB)
ZIP Download Demo (72MB)

Description File Type File Size Download
Automation Software Family Catalog PDF 983KB Download
Sales Brochure PDF 1.46MB Download
Catalog PDF 68KB Download