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CMH Software Electrical Ladder Diagram Design and Training

Constructor 11.0

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Constructor 11

Create, Test, Teach and Print Electrical Ladder Diagrams...
Once designed, any ladder diagram can then be virtually energized and operated on your computer. Great for training and troubleshooting.

See how easy it is to use the Constructor, take a look at our new Constructor videos.

Help us make the Constructor a better program, take our quick user survey.

Constructor 11 version history



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Click HERE to play this short flash animation. It will show the power flow in the simulation mode. If you want to hear the sounds effects make sure your sound is turned on.


Create, Test and Print Ladder Diagrams
The Constructor program makes the creation, testing, trouble-shooting, teaching and printing of electrical ladder diagrams, diagram schematics and one line diagrams fast and easy. The circuit will perform the same as a hard wired electrical circuit. The design can be edited and re-tested saving valuable time when it comes to hard wired circuits and trouble-shooting scenarios. This program is unique in its ability to test an electrical circuit. You can see the power flow in the diagram and hear the sound effects when a motor or siren is energized. Once designed, any circuit can then be virtually energized and operated on your computer monitor. The circuit simulator is a great teaching tool. Our customers tell us the Constructor is the quickest and easiest electrical cad software they've ever used.

Symbol Libraries and Symbol Editor
The built-in symbol libraries of over 720 electrical symbols makes the creation of your diagrams fast and easy. The built-in symbol editor allows you to create your own custom electrical symbols for that special project.

Easy to Learn and Use
Our new Active help system, help files, and a pdf manual makes learning to use this powerful software much faster and easier. Your complete circuit can be tested, from the three phase power components to the control circuit. Many of our customers have used electrical cad software before and comment about how easy our software is to use compared with other electrical cad software.

All the Features You Need
Powerful zooming features for faster editing and easier viewing of your electrical diagrams. Over 50 color schemes allow you to set your personal color preference. Automatic legends and borders allow you to make professional looking electrical diagrams quickly. You can print your ladder diagrams out on your choice of any printer or plotter that Windows supports. The diagram may be saved to your hard drive, flashdrive or a floppy disk for easy reference or modification. You can also save images from within The Constructor program as bitmap files. The bitmap files can then be used for printing or imported into other programs. Exporting your diagram as a DXF, DWG, JPG, GIF, TIF or PNG file is also an option.

Optional Additions Available
Optional PLC I/O libraries are available for most PLCs (Over 1400 I/O modules) An optional additional sound library allows you to add 126 more sound effects to your circuit diagrams.


CONSTRUCTOR 11.0
with Ladder Logic Simulation

Our software will help you with electricial diagrams, electrical schematics and control circuit diagrams.

New Features
  • Now Windows 8 Compatible
  • Now with Symbol Library Search
  • Now with the ability to add Fuses or Breakers to the diagram that open or trip on an overload or short.
  • Now with more symbols and symbol classes: 3 wire coil, 4 wire recyle coil, Fuses and Circuit Breakers
  • Now with additional ID boxes (4 Total) for each symbol
  • Works with Windows XP, Vista, 7 or 8.
  • Change Wire Colors
  • Automatic Wire Numbering
  • Wire Label Printing
  • Ability to create and add documents, notes and workbooks to your projects
  • Export features: DWG, DXF, JPG, GIF and more...
  • Sound Effects (Hear the Difference!)
  • File association of .lad files to The Constructor
  • Auto backup procedures
  • Interactive on-screen help
  • Quick Symbol Selection with Filters
  • Edit and Run Screen Zoom 20%-100%
  • Symbol Library Zoom 20%-100%
  • Dashed or Solid symbol connection lines
  • Circuit Log in the RUN mode
  • Three-phase power symbols
  • Generic PLC I/O modules and Terminal Strip libraries
  • Generic Soft Starter and Variable Speed Drive libraries
  • ON delay, OFF delay, Interval, Alternating, Recycle and Dry Contact Timers
  • Over 50 Different Color Schemes Including Background Colors
  • SPDT Contacts
  • DPST, DPDT, TPST and 4-way Switches
  • Auto Hi-Lighting of contacts assigned to coils
  • Automatic wire Re-Number feature
  • Up to 10 power sources
  • Three phase and single phase transformers
  • Easy to learn, easy to use
  • Cut, Copy & Paste
  • Save commonly used sections of your drawings as Templates
  • Virtually Energize and operate your diagram
  • Quicker than most other electrical CAD software
  • Print your diagram in the energized or de-energized mode
  • Built-in Symbol Libraries of over 720 JIC, NEMA and IEC Symbols
  • Easy point and click method
  • Automatic Legends and Borders
  • Compatible with Constructor version 2.0 - 10.0 diagrams
  • IEC Symbol library available
  • Optional PLC I/O, VSD and soft starter libraries available
Constructor in Edit Mode

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Picture of the Constructor 11.0 in the EDIT mode. Active help is shown also.

Constructor in Run Mode

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Picture of the Constructor 11.0 in the RUN mode. Screen also shows an open Workbook.

Constructor in Run Mode

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Picture of the Constructor 11.0 in the EDIT mode. Screen also shows an open Time Delay dialog window.

Constructor with PLC I/O

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Picture of the Constructor 11.0 with PLC I/O and a load PLC I/O module dialog box.

Constructor with wire generator screen

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Picture of the Constructor 11.0 with wire generator screen.

Constructor with wire label screen

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Picture of the Constructor 11.0 with wire label screen open. It shows wire numbers applied to a Brady label template.

Export preview screen

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Picture of the export preview screen.

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