According to manual, RWw2 is the instruction code, and RWw3 is the data. So if we want to change speed data, then we put the specific code into RWw2 and the value into RWw3. I have this working, but the position is a different story. All I get from the manual is a lower byte and upper byte that must be in that order. Lower has one code and the upper has another. I have tried sending these many different ways without success. Anyone have any input that could help out?