Howdy, y'all. I am a technician for a major contractor that handles HVAC and Refrigeration of all sizes. We are looking into the profitability of offering our customers updated PLC control systems for their respective controls needs. The system we are considering would give us:

Centralized and/or standalone control.
System monitoring from any internet computer without special software.
System generated status/trending e-mails.
Cost effective alternative to "custom" BAS systems.
Most or all of the programming could be canned.

Our problem lies in not being able to find anyone else doing this. Is there another company out there offering relatively low cost control retrofits?

Thanks for your help.

Triggerman