Hello Mark,

> SFC is good at what it does and so is ladder. <

Would you like to point the problem with SFC... (SFC+ST as I understand)

Thanks. Vladimir

 

Hi All

Graph 7 is close to Grafcet, HiGraph is a totally different K.O.Fish

In HiGraph you drag states and transitions onto your screen, create a tag list and drag and drop the tags into the sequence. At runtime the graphic showing the flowchart is shown in color to visualise the currently active step and the previous step which makes faultfinding a breeze. Whilst showing the active step it also shows the status of the internal logic and that of any impending transitions. The program is unique (as far as I know) in that it allows multiple parallel loops in the same flow chart. The only downfall is that it uses a compiler which could be faster, (couldnt they all) but I cant see how this could be avoided as it is a graphic programing package. This package rates 10/10 in my book and I have worked on a great deal of sequences in the last 20 years.

Think and do is in fact similar to Graphcet but has some ease of use features which make it special.

Regards
Donald Pittendrigh