The Constructor versions

Create, edits and shares electrical ladder diagrams
May 31, 2018
May 31, 2018
Review
Mar 26, 2015
Review
Oct 22, 2013
Review
Nov 29, 2011
Review
9.0
Dec 25, 2008
8.0
Apr 6, 2008
7.0
Feb 11, 2009

What's new

v12.0 [Mar 26, 2015]
Now with PDF Export
Now with PCF (Portable Constructor Format) Export
Free PCF (Portable Constructor Format) Viewer now available
Now with more symbols and symbol classes: More IEC symbols, center off switches and center off selector switches
Virtually Energize and Operate Your Diagram
Works with Windows XP, Vista, 7 or 8.
Export features: PDF, PCF, DWG, DXF, JPG, GIF and more...
Change Wire Colors and Styles
Built-in Symbol Editor
Built-in Symbol Libraries of over 800 JIC, NEMA and IEC Symbols
Symbol Library Search
Sound Effects (Hear the Difference!)
Interactive on-screen help
Easier and faster to use than most CAD Software
Generic PLC I/O modules and Terminal Strip libraries
Automatic Wire Numbering and Re-numbering
Auto High-Lighting of Contacts Assigned to Coils.

v11.0 [Oct 22, 2013]
- Fixed a problem when a diagram had 4 or more power points and/or transformers. The program would shut down unexpectedly.

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