hi I need help creating a circuit. I have an NPN output that varies from "high" to "low". I need to level shift this to two voltage V2 (low) and V3 (high). I also need to detect OPEN and SHORT Loads. I can do everything except detect the open.

The problem I have is that I can put a current sense at the output, then when the load is removed I can compare with and without load. The issue is that I am trying to do everything under a single wire and I am running into feedback issues because I am comparing the output that I am trying to control at the same time

 

Schematic diagram, please ...

 

You've told us very little information.
What are "V2 (low) and V3 (high)"?
What is the load for "V2 (low) and V3 (high)"?
How are you controlling the output?
What "feedback issues"?
The language of electronics is schematics, so please provide one.

 

Let see if I can translate.
You got NPN ac signal amplifier circuit. The output is a sine. You feed the sine to dual rail op-amp with really high gain so you very quickly hit the rails (low rail V2 and high rail V3). The output of the op-amp looks like a square wave at this point.

Normally when people use word load, they mean resistance or resistive load. Short load to me sounds like very low resistance. Open load to me sounds like very high resistance (you can stick 10 MOhm resistor, should be high enough) or in other words, open circuit since open circuit has infinitely high resistance.

 

Crutschow is totally correct. While there are many experienced members here, none of them can see what it is that you are partially describing, and so the very best you can get is a bunch of guesses. The only thing that one wire will work well at is a radio antenna. So in order to get any useful assistance you need to provide a much greater amount of description.
It takes two connections to compose a circuit, at which point there can be voltage and current. One connection by itself will not do anything useful. So the description needs to include more information, and should also include some description of what you are wanting to accomplish.