Wireless Solution

Hey everyone, Great site as always.....I need a wireless solution to transfer one bit. I have an application that has two stations, about 50 feet apart. There are no obstructions between them, but running wires is almost out of the question....(very difficult physically). I have a set of contacts that close at one station (dry contacts), when these contacts close, I want to notify the operator at the other station via a horn and siren that the alarm condition exists at the first station. Anyone know of a good solution for this? I really don't want to put a PLC at each end if at all possible....

Thanks in advance,

Greg.

Can you use an emitter/receiver pair of photoeyes? If you can keep it high enough that might bean easy way to go.

Keith

Many companies make optical data couplers (requires line of sight).
Here is a link to Pepperl and Fuchs device:
http://www.am.pepperl-fuchs.com/products/productsubfamily.asp?division=23&productsubfamily_id=505

Please dont laugh,

I did this recently with a garage door remote from Gene. Home Depot for 50 bucks. We took the remote apart and wired the button switch into the controller output. The transmitter uses a 12volt battery, so a reliable power supply wasnt a problem. The reciver box provided a dry contact SPST, momentary on. The unit uses a "rolling code" signal and seemed to be very reliable. The distance was about 60 ft.

This was a temp fix until we could run a wireway through a hazardous area.

Mike.

Who would laugh at that?

Sounds like a pretty damn good solution to a problem.

I know I could use something like this.

I think this is the correct link.

Neato stuff.

www.phoenixcon.com/wireless/