HCADwin is a program for drawing, printing and executing logic and control.
The process is simulated by the inbuild HSL (HCADwin Simulation Language). The webserver, HCADweb, connects with PsxCad for the operator interface (NEM Powerspex product).
These elements are used for building training simulators.

HCADwin uses IEC1131 look-alike symbols, which can be easily altered or added.
HCADwin in full simulation mode can execute within 200 MB normal memory. (Compiling with full crossreference within 400Mb.) The disk space used for installing HCADwin is about 20Mb, your projects excluded (Normal projects of 300 pages are smaller than 1 Mb). A normal PC using a Windows operating system is needed.

navigate to the download page.
Download the last version HCADwin V7.5.2.9, 08-02-2012 14:52:54 (6529Kb 08-02-2012).
HCADwin uses a locally stored HelpWeb (on your network drive to share it with all users) Download HelpWeb (3387Kb 28-01-2012)

Real time drawing demonstration: Creates a new project, some logic AND simulates it.

History:
In 1992 HCAD was created to implement the control for a huge real time training simulator (energy plant, 53.000 tags) and provided a means of integration between the physical model (ACSL™) and the visualization (PBS20™). 100 HCAD projects were joined together, giving 4.500 pages of logic and control. HCAD was written in Turbo Pascal 5.5 (MSDOS), but it generated FORTRAN code for a VAX Alpha™.

In 1996 HCADwin was the next logical step for the Windows 95/98/2000/XP/Vista/Windows 7 environment. It is written in Delphi™ and creates a DLL for each project while compiling PASCAL code. It is a good tool for designing and testing functional logic diagrams.

In 2006 this simulator was migrated to the normal state of the art PC, using HCADwin. The modeling language HSL was developped and replaced ACSL. Some special FORTRAN procedures were translated in normal logic pages for better maintenance and all symbols were adjusted to enable "Forcing" for manipulating the logic control while running. The number of logic pages grew to 5.500 and the number of variables to 206.000 tags. But even on a very normal PC this elaborate model and control can be calculated 15 times real time. The visualization was upgraded to PBS30™ and included a TCP/IP connection.

Compare your actual project with some backup. Black is unchanged. This example shows an OR moved to the left.
Blue is an indication for the new drawing and orange the old.

Highlights:

• HCADwin draws fast! Connecting symbols is easy; connections are auto routed after rubber banding the symbols. Learning to use HCADwin takes only a few hours. The first logic diagrams are crreated and running in matter of minutes, just follow the built in course.
• The printout can be tailored. Add the logo of your firm and your client by including a BMP/WMF/EMF/JPG or HUP. Add or alter the global or page related remarks. Each page can contain up to 6 revision remarks.
• Each project is limited to 999 pages, but over 700 projects can be joined. The cross-reference pages will reflect all linked projects. Index pages and cross-reference pages are automatically updated without any command.
• Almost every symbol can be altered in every aspect. Symbols are described in a symbol library which can be edited as plain ASCII, while HCADwin is running!
• Special attention for STATE and TRANSITION diagrams. These diagrams can be drawn very easily and are also executed.
• HCAD Simulation Language (HSL) is included. This powerful Pascal like language is used to express the laws of nature. It interfaces elegantly with the graphical logic and control, just use the same tags as expressed in the inputs and outputs.
• HCADwin uses the dBase™ format as its normal database. The drawings are stored in an internal, compact format. So only two files are used for a project. Import and export of the database is taken care of. HCADwin does not use ODBC or any other means of connecting to the database tables. Only internal routines are used for all table types. The executable is therefor highly standalone and not dependant of third party software.
• HCSimul, which executes the compiled projects, can be interfaced using DDE with all types of SCADA's. (or EXCEL™) for displaying the real time data.
• HCADweb is using HTTP protocol to enabled the RTDB being accessed from another PC (like PsxCad for a full scope human interface).
• HCADwin is available in English since February 2001.
• HCADwin has a special "Pack and Go" format. A complete project, including all referenced files, is stored in a single email file. In case of multiple projects grouped together, this HCE file contains all projects.

For more information:

Flash 5 or higher required