I was wondering of you had any plans to add a adjustable hysteresis setting for the analog triggering and on board rules. This is the only thing holding me back from trying to use the io204 as differential temperature controller for a hot water solar system. I am thinking some thing like if channel a > channel b + x to trigger digital out on and if channel a < channel b + y to turn it off were x = on hysteresis and y = off hysteresis.