Currently, there is no auto measurement for the positive or negative pulse count on the 5/6 Series MSO. The workaround would be using the “Search” feature to search for the pulse width. First, set up for the positive pulse width auto measurement for the positive pulse count. Next, setup the search event using +/-2% limit to the pulse width.  The number of the search events would be the number of the positive pulse count. Similar setup for the negative pulse count uses the negative pulse width and search polarity to negative side.