Wireless I/O

Does anyone know of a Wireless I/O modules where I could place 12 different single signal discrete transmitters placed throughout the plant and send them to 1 single receiver module with 16 outputs (each transmitter would turn on a different output on the receiver unit)? Transmission distance would be around 800-1000ft.

I saw these the other day. They might have something that would work for you. We played around with a demo unit in the plant and the coverage was good.

http://www.bannerengineering.com/en-US/wireless/surecross_web_home

I have used over 150(Max 256) of these all over the city to monitor remote lift stations.
http://www.isaacstech.com/radio_products/index.htm
They will do Three states( EOL resister = Normal, Shorted = Power Fail, Open = High Level)and Generator testing w/time schedule
603T Transmitters
737R Reciver into an AB 5/05 PLC

They do make a stand alone 16 channel reciever that should fit your needs.
http://www.isaacstech.com/radio_products/sheets_manuals/pdf/616R_specs.PDF
Paul

The Banner Engineering ones work great, I used them on a dozen applicatons now