The 12.5KW generator is cog belt drive from engine. The engine runs natural gas (from our own well), gasoline (175 gallon tank for vehicles 10' away)(automatic transfer to generator's 16 gallon tank), or propane and will seamlessly switch between any of the fuels depending what is available. A Tri-PLC T100MD888+ manages the whole thing. The PLC programs in ladder logic with Basic routines embedded in the rungs (circuits). A PIC 18F1320 at the gas well monitors well head and regulated gas pressures and enclosure temperature. The PIC comunicates with the PLC via fiber optic thats converted to RS-485 in the house. We drilled the gas well 30 years ago for $8K USD, and it is 1000' deep. The well serves only the house, and in very cold windy weather can be temporarily depleted, but an hour rest and it's good for a half a day again. I'm looking for a way to comunicate 2 ways with the PLC via. phone, probably tones to the PLC and voice out of the house. This would probably be on the RS-485, but could go RS-232. goflo@cox.net wrote: > ---- Carl Denk wrote: > >> 27 Hp. Kohler Engine available >> as injected or carb. I use the Carb. for standby generator since it had >> a gasoline cutoff solenoid that I could use when running other fuels. >> > > Sounds interesting -Care to elaborate? > > Jack > > > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist