I am a college student, taking a class in PLC's. While just playing around making my own ladder logic programs, I tried some things that I know wouldnt work, and tried to download them onto our trainer. One thing that has baffled me, the graduate assistant, and the professor, is with the latch function. I programmed two different switches to turn on an out put, using the outputs twice, ofcourse that didnt work, so I tried using them latched, like O:0/0 and O:0/0(L) and it worked, but I didnt unlatch it. It isnt supposed to work, but it does, I was wondering if this just a problem in my trainers, or a glitch in the programming, of RSLogix.