I'm a new group member. I'm current developing a product on an CTC PLC but I'd like to produce the product using a lower cost PLC. Basically I need ~10 DI's, 20 low current DO's, and ~20 AI's. I'm not asking for a specific model PLC to be identified I just need to be pointed to some mfgs that may offer this product at a lower cost. I have been cruising the net but my eyes are starting to cross .

Thanks
Dave

Dave, Try www.AutomationDirect.com or www.IDEC.com.

Automation Direct has a nice line of brick PLC's and they have a newer modular PLC that uses Mdobus that start under $100. They also have 2 lines of IO products that are enthernet based.

Idec has a nice line of bick PLC's as well.I believe that pricing is similar.

There is also B&R and Wago. I know there are more out there os please guys don't hate me for not mentioning them. These are the ones I am most familiar with from a cost vs. reliablity viewpoint.

Fred Loveless
Senior Application Engineer
Kepware Technologies
http://www.kepware.com

Thank you very much Fred. Dave

I assume this is an OEM application. Never used them but you might want to take a look here:
www.entertron.com

You can get to those I/O counts easily with a Mitsubishi, FX3U would be a good choice. They make an 8 channel analog input block for the FX family. A small base PLC, one output extension block, and 3 of these and you'd be in business.

Have you tried www.ezautomation.net?