Internet PLC Forum

General => Technical support => Topic started by: wittmane on August 11, 2014, 07:32:53 AM

Title: Read data from webpage
Post by: wittmane on August 11, 2014, 07:32:53 AM

I have another device that I am using for the primary webpage, but I want it to get some readings from my Nano-10. I was thinking using ajax on the other device would be nice, but looking at the pre-made webpages, it seems that the data from the Nano-10 is displayed through the use of JavaScript, which wouldn't work for getting that through an ajax request. Is there some way to send the data directly so ajax would work or have some other way of sending the data so that another device can read it and display it through the use of html and JavaScript?

Title: Re:Read data from webpage
Post by: support on August 11, 2014, 10:13:23 PM

If the other device is able to make a TCP connection to the Nano-10 server, then it can send the HTTP protocol string "GET HOSTLINK/xxx*"  where xxx is the hostlink commands (Chapters 15 and 16 of the User's Manual) and the Nano-10 will return the response string to the caller. This is how the javascript webpage uses the Ajax to communicate with the Nano-10.

You can easily test it using your webbrowser to enter e.g.

http://192.168.1.5:9080/HOSTLINK/IR*

You will get something like "IR01*"