Talking 7 to 30 bbl in size. Heavy on the temp inputs, lets start with 20, a few analog outputs and inputs, some digital IO, all expandable. Would like a local HMI, but also capability for web access with control capability, and can preferably send alarm info via text/email. $ are important. Any thoughts? I'm partial to Rockwell and Siemens PLC, as I can get that gear cheap, but open to anything - there won't be complicated programming required.