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few question about user defined web pages

Created by: polonez at: 1/24/2012 8:40 PM (4 Replies)

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1/24/2012 8:40 PM	Rate (0)
polonez Posts: 20 Rating: (1)	I have a few question about user defined web pages: 1) How to do a image who will be dependent on a variable from PLC? for example when M0.0 = 0 on a web page I can see image1 and when M0.0 = 1 i can see image2 in the same place of web page? 2) How to do when for example M0.1 = 0 a fragment of web page is visible and when M0.1 = 1 the same fragment of web pages is invisibly or inactive? Please help me. I care the most on concrete examples / excerpts of code if it possible. Thank you for your response
polonez Posts: 20 Rating: (1)
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1/29/2012 9:20 PM	Rate (0)
polonez Posts: 20 Rating: (1)	How to do a switch (two positions button) on a web page?
polonez Posts: 20 Rating: (1)	Last edited by: polonez at: 1/29/2012 9:23 PM someone have any propositions
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1/30/2012 7:49 PM	Rate (0)
Gabriel de Oliveira Bronze Member Joined: 2/16/2011 Last visit: 1/13/2025 Posts: 229 Rating: (28)	Hello; See manual link..(Chap.13 Web Server) Link to doc:s71200_system_manual_en-US_en-US v2.pdf Regrds
	Gabriel de Oliveira It Works? Rate It.
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1/30/2012 10:07 PM	Rate (0)
polonez Posts: 20 Rating: (1)	OK Thank You very much. I don't saw this earlier. But in this example I don't see depending visibility fragment web pages code from CPU variable Exist something like this?
polonez Posts: 20 Rating: (1)	Last edited by: polonez at: 1/30/2012 10:55 PM I looked for the manual any examples for my question and I don''t see nothing like for me. There is nothing written about the swich button, visible and invisible fragment of pages and changing of the image depending on the variable. It is possibly do something like that?
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3/16/2012 4:50 PM	Rate (0)
jon_hill988 Posts: 10 Rating: (0)	To do that you need to add some javascript you your webpage. If you have your tags loaded into an .xml file you can use javascript on your page to compare the value of the string (in the case of a boolean it will be "0" or "1") and change the state of a page element as required. http://www.w3schools.com/js/default.asp will show you exactly what you need to do it. A small sample of code is below that changes the background colour of a <div> element (which can then be used as your indicator). [code]function loadIndicators() { var xmlhttp; var offcolour = "#DDDDFF"; var oncolour = "#3333FF"; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp=new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange=function() { if (xmlhttp.readyState==4 && xmlhttp.status==200) { xmlDoc=xmlhttp.responseXML; if (xmlDoc.getElementsByTagName("DQ0a")[0].childNodes[0].nodeValue=="1") { document.getElementById("DQ0a").style.backgroundColor = oncolour; } else { document.getElementById("DQ0a").style.backgroundColor = offcolour; } setTimeout('loadIndicators()',1000); } } xmlhttp.open("GET","indicators.xml?t=" + Math.random(),true); xmlhttp.send(); }[/code] In the html body you need <div id="DQ0a"></div> somewhere to be changed. You also need the indicators.xml file which will contain elements in this format: <Web_Access> <DQ0a>:="Web_Access".DQ0a:</DQ0a> <DQ0a>:="Web_Access".DQ0a:</DQ1a> ...and so on... <Web_Access> There are several other topics in this forum on Javascript and xml, this script was based on the one from here Hope that helps, I was clueless on this a day ago myself... Jon
jon_hill988 Posts: 10 Rating: (0)	Last edited by: jon_hill988 at: 3/16/2012 4:52 PM
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