I 'm not the program with me now , I'm just with LogixPro simulator, and in it I can reset the RES using C5: 0.ACC do not know if the rSlogix is so , I think so as you 're talking about. but now my doubts is to address C5: 0.PRE for both RES and for CLR , using in both the same thing happens , so do not know the difference . could you explain me? thank you