PLC interfacing to a website

I want data from various websites to be available on a PLC network. Can anyone suggest a type of PLC and a way to do this?

The data I want on the network is US Government security warnings, National Weather Service, and some other proprietary sites.

Cabe

0 Former Member over 15 years ago

I haven't used PLC's for many years, but I think you need to use some fairly high-end devices with either
serial of network connection in order to feed them the data. (I suppose that you want this done automatically)

Getting the data off the websites is a project in itself, unless the sites in question offers some sort of very
simple (and static) GUI, or even an API. In any case, I would use a PC for the job.
Lynx is a text based web client, it may be able to do some of the work for you.

Erlo
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0 Catwell over 15 years ago in reply to Former Member

The data I can take from the websites would mostly likely be in the form of RSS feeds. Weather and alerts are just news broadcast publicly, so getting the streams shouldn't be much of an issue.

Cabe
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0 Former Member over 15 years ago in reply to Catwell

So all you have to do is to find a PLC with an appropriate interface that can be used to feed
it you data stream.
Maybe something like this: http://www.brodersen.dk/proinfo/data/field.htm

Erlo
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0 Former Member over 15 years ago

You can do this easily from most SCADA/HMI packages that typically reside on a PLC network but if you want a pure "PLC solution" you could buy a Beckhoff CX9001. They are relatively inexpensive and run Windows CE, so you can write your own script to pull in anything you like off the web, save it to a file and then use the Beckhoff TwinCAT instructions to read the file data and do what you like with it. There are really many different ways to accomplish this.
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