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The Constructor download

Free Create, edits and shares electrical ladder diagrams
14.3 (latest)
May 31, 2018
Mar 26, 2015
constructor12_trial.exe
Oct 22, 2013
Nov 29, 2011
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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