Experimental Physics and
Industrial Control System

[email protected] · Wed, 28 Jul 2010 11:17:12 -0700

David,

I use stream to do just that.
PCRE (support for regular expression) needs to be compiled in to grab values between tags. (i.e. <epics_val1>45.6</epics> somewhere on the webpage)
Your webpages may be complicated (all in one, java, flash, etc), but if you control the webserver, you can create simple webpages to interface specifically with your epics driver.

Good luck,
--
Emmanuel

On 11:33 Wed 28 Jul     , David Dudley wrote:
> Here¹s a new one for you (Got Ralph and Michael going about how to do it,
> anyway ;-)
> 
> Almost all of the PLC equipment we¹re going to be using on NSLS/2 is
> connected on Ethernet.
> 
> It is common practice in the communications modules now, to integrate an
> embedded WEB server into the device.  Both the Siemens and Rockwell hardware
> we¹re going to use have that capability, as well as most of the new
> generation of instrumentation.
> 
> Does anyone have knowledge of an EPICS device driver that is capable of
> reading and interpreting a WEB page or XML page?  Seems that this would be
> the most universal way to read data from all this differing equipment, if
> such a driver was available.
> 
> David Dudley

-- 
Emmanuel

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System