Cost effective PLCs w/ remote I/O
Cost effective PLCs w/ remote I/O
(OP)
Does anyone have some good experience with some smaller scale PLCs using remote I/O? I've used the larger systems like CompactLogix and S7-300 w/ remote I/O but that's a little more expensive for the small-scale job I am currently working on. A vendor recommended Telemech/Twido to me but I'm not very familiar with their hardware and if they can work w/ 3rd party remote I/O (Phoenix, WAGO, etc.)?
yngbld13
yngbld13





RE: Cost effective PLCs w/ remote I/O
For cost efectiveness - the software is a pain, BUT it does offer a lot of features. --Unitronics V350 HMI/PLC in one!
Then you can add any 3rd party device if you want for remote I/O - BUT again this product also has built in WEB SERVER!! so you can host LOCAL or REMOTE connectivity!
Add GPRS and there you have it or a GPRS Router, etc the options are endless! FREE SOFTWARE - FREE WEBSERVER - HMI/PLC in ONE! It just makes sense -- and NO I don't work for Unitronics. I am a OEM system builder.
Hope this helps! If you need more assistance please feel free to inquire.
Steve
RE: Cost effective PLCs w/ remote I/O
RE: Cost effective PLCs w/ remote I/O
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RE: Cost effective PLCs w/ remote I/O
RE: Cost effective PLCs w/ remote I/O
In the not-too-distant future, all of the Step 7 software will migrate to this style, Siemens is calling it "TIA Portal". If you have Step 7 pro with the Software Upgrade Service package, you will be automatically upgraded to TIA Portal when it is released. Everything will be backwards compatible, and the full package TIA Portal will roll in the Step 7 Basic for the 1200.
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RE: Cost effective PLCs w/ remote I/O
The other advantages are that most parts are stocked and you have 30 days to return a part for a refund, so long as you still have the box. I once had a problem with a PLC. It turned out to be a back plane. I ordered a CPU, backplane and I/O cards and returned what I didn't need a few days later.
Stephen Van Buskirk
Clothes make the man. Naked people have little or no influence on society. - Mark Twain
RE: Cost effective PLCs w/ remote I/O
RE: Cost effective PLCs w/ remote I/O
I use Allen Bradley all the time. One thing for sure is that there is nothing about Allen Bradley that is cost effective. They have nice stuff, I agree there. But they are painfully overpriced. We get Siemens and IDEC PLCs for less than half of what we get Allen Bradley for. And they are just as good.
RE: Cost effective PLCs w/ remote I/O
Other micro plc's like the micrologix have rs232 communication, so you need AB's cable and a usb-rs232 adapter. The s7-1200 has the ethernet port.
Joel Olson
RE: Cost effective PLCs w/ remote I/O