Hello,

I have the task of modifying a hot table to be controlled remotely. There are a handful of users who would all like to be able to turn the machine on and off as well as vary the setpoint from a web interface. Currently, the machine uses an integrated heater controller unit, the Chromalox 2104-RO110. From what I have already read, it seems like a PLC with an integrated web server would be the simplest and most economical solution, but I have never had a project like this before (including programming a PLC or web page). Where do you guys recommend I start? Any good resources out there for an infant PLC programmer?

Thank you for any help!
Matt

 

Instead of a PLC, which could work but would probably require a fair amount of programming, check out the Newport iSeries temperature controllers with built in Ethernet.  It may even be close to a drop in replacement for the Chromalox.

http://www.newportus.com/
 Bill Sturm

 

To turn it on or off via the web, there is a COTS box designed precisely for that, the web relay.

http://www.controlbyweb.com/webrelay/

I'll have to ponder a temp controller with a web interface

 

Temperature control is not one of a PLC's strengths. I would use a Red Lion Modular Controller. It has a web server built-in that allows you to program a web page by dragging and dropping objects, filling in parameters, etc. No knowledge of a programming language (HTML, etc.) needed.

Select a PID module for it and the control loop is built in for you.

See their website www.redlion.net

 

Yeah, Omega has a line of temperature controllers with an integrated web server:

http://www.omega.com/iSeries/iEmbed.htm
(take out any space the forum inserts into the URL)

 

Hi Matt,

WISE-5800 which has website interface feature may help you to get the web interface together with the temperature modules provided by ICP DAS-USA.

You can go to the link to get the concept of this solution. <b>http://www.icpdas-usa.com/wise_5800.html</b>

Also you may add a simple basic SCADA which can do web publishing which can also help you to add a web interface. <b>Free download the trial: http://www.icpdas-usa.com/documents/king/kingview6.53_EN.zip</b>

Get help by link: <b>https://www.icpdas-usa.com/comm/liv...tform or SCADA Syste&cslheg=1&serversession=1</b>

<b>Moderator's note:</b> The forum software inserts spaces in long URLs. Make sure you remove them.

 

Hi,

I'm going to step out of my usual role here and recommend the controllers made by my former employer, Control Technology Corporation - <b>www.ctc-control.com</b>.

They make controllers with web interfaces, in fact they were one of the first. And Quickstep is a very easy language to program in. Check them out.

Regards,
Peg Ferraro

 

Hi Larry,

If you need simple on off control with temperature viewing and no logic, you can use our ET-7019R:
http://www.icpdas-usa.com/products.php?PID=3479

It has thermocouple inputs and DO for control. You can control and view status through the web interface with a public IP address that is password protected.