I am cleaning out my garage. I had big Ambitions when I built my shop that I was going to install all of this from projects that I had left over from when I had my own automation company. I have two never used Rosemount pressure transmitters with displays($250 ea), two 1in Asco valves ($50 for both), 36x36 metal cabinet with a 5in Magellan HMI m340 plc with a 8 slot backplane . It has analog and digital cards in it as well as relay remote modules to make wiring it up easier. A 24 volt power supply as well as a network switch and a digi modbus converter that you can use to communicate with your solar equipment or anything that uses 232 or 485 ($750). I also have a Allen Bradley micro 820 ($50) and a micro 850 ($75). Take it all for $1100. You can price it all out if you were to buy all this stuff new and you'll see what a great deal this is. I just need my garage cleaned out and I'm never going to install this I've kind of lost interest.