Damica

Didn't realize how hard this was!

8 posts in this topic

I have been looking for a low cost plc with these features. I can't find one!!!! Needs 2-4 digital inputs, 2-4 analog inputs(4-20ma), 2-4 relay contacts. Here's the hard part. Has to send "Authenticated" Email and has to allow remote control of the relay contact thru the Internet. It does not ever have to be a PLC, but it needs to be industrial grade equipment.(easy to program & use) I would take any help you can offer. Thanks

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I'd consider using a micro PLC with an add-on analog module or two. And for the email and remote access, consider hooking it to an EWON router.

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http://accautomation.ca/heres-is-a-quick-way-to-send-email-text-messages-from-the-plc/ The above link uses restricted Gmail SMTP server so no authentication will be required. I know this is not exactly what you need but it may be something to look at. I would look at the Do-More PLC for a low cost option. Regards, Garry http://www.accautomation.ca

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I am an Allen Bradley and GE guy...through and through...but recently I needed to do some CHEAP, CHEAP projects... so I tried one of these. Click PLCs. The software is pretty good and I think it meets what you are looking for. http://www.automationdirect.com/adc/Overview/Catalog/Programmable_Controllers/CLICK_Series_PLCs_(Stackable_Micro_Brick)/PLC_Units I've used them on some Halloween things too...

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How's the Halloween thing going this year? How about posting a link...

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As far as I knew, none of those support Ethernet or email.

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Nothing this year. I mostly referring to years past.

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Greetings, It has been two months since this thread was originally posted, so I don't know if this information would still be needed. Regarding your requirements, first, the request for a "low cost PLC" is rather ambiguous in that it doesn't clearly define a price range. I say this because low cost is a relative term, depending upon a number of factors. With that said, whether this controller meets your price objective is uncertain, however, in meeting your requirements, I would say it does. The unit that I am speaking of is the FMD series from Triangle Research. It is an embedded Ethernet PLC that satisfies your I/O requirements. More information (includeing data sheets and manuals) can be viewed through the following link: http://www.eternity-sales.com/tri-plc/tri-plc.htm (you will want to choose either FMD series or Nano-10 series) Note: The FMD series is transistor outputs while the Nano-10 does have 2 relay outputs. Should you pursue the FMD series, incorporating two interposing relays to the transistor output would suffice. If you truly wanted an on board relay and need the number of I/O, then you would need to look at the F-series. Section 2.4 of the manual offers information pertaining to sending email. If your I/O requirements are on the lower side of your range, then you may be able to use the Nano-10, a smaller version of the FMD series. Regarding the milliamp analog, a simple addition of a resistor will convert the voltage signal to current signal. Should you decide to purchase, you will need to purchase the starter kit in that it includes cables and programming software. Disclosure - ESI is an authorized Triangle Research Distributor. Edited by Eternity Sales

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