![]() ![]() You can ask their sales department about whether they have the symbols you are looking for. I believe they also have MS ActiveX versions. The link which Francis gave to "Softwaretoolbox" is to their clip art library. So, what are you looking for? Do you have an existing web based HMI and are just looking to expand the Java (ActiveX) applet collection? Does it need to work with a specific HMI/SCADA system? What sort of equipment does it need to be able to talk with, and using what protocol? Or do you have nothing at present and are looking around to see what is available? Both functions typically need to be built into the same piece of software (because of the way that newer web browsers work). It also needs a communications server to act a a middleman between your web browser and the PLC/SCADA/whatever. It needs a web server to serve up the web page (and other files, including the Java/ActiveX applets). ![]() In either case, a web based HMI needs some sort of server. In that case, you have to live with whatever they happen to give you, and they typically all have to be designed to work together so you can't just mix and match them. ![]() That means that each "symbol" is actually an independent program that happens to run inside the web browser. Most "web based" HMIs however are actually a collection of Java (or ActiveX) applets. It comes with a set of common symbols, but you can make your own easily enough and manipulate them using one of the standard methods. I've designed one that you can create whatever you want as part of the web page and manipulate it (rotate, change colour, etc.). The answer to that is going to depend on how your web based HMI will work. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |