WebServer Programming – Advanced
This webinar covers the basics of implementing a Web Server with Unitronics controllers.
• Demo Projects
Q: Can the Simple Web server display Trends or bar graphs?
A: NO, the simple web server is only able to display operands types, MI, ML, SB. The enhanced web server can be used if a user can create a web page that has this functionality
Q: So the simple Web Server is basically text and numeric’s?
A: Yes, it is meant to be a quick and easy way to get access to information over the web browser
Q: Can you change the colors and text size on the simple web server?
A: You can use the alarm option to give color to a certain range. the colors are red, yellow and green. You can set the range where the colors will change
Q: Did I miss Where the main page be modified?
A: No, the main page is always the same information, which comes from the particular controller, OS number, controller… We create another, or a few more, pages with the information we want to display
Q: I now see that the manin page can be modified in the advanced web svr. I assume can not be modified in the simple server?
A: That is correct. The simple is predefined. The advanced needs to be built.
Q: Any support for uname/pw access within the PLC web server?
A: This is not supported by the simple web server. We have built some function like this, using the MI entry and a compare sto simulate a PW. WE also use the a set of registers just for the web page, and if the PW is entered correctly, the really MIs will be sotred to the display MIs.
Q: Future support for https?
A: Probably not in the immediate future.