Separate values of variables are in such created string separated by semicolon. If the value of the variable is the value of the String type inclusive of, for example, a "space" character, then the internal conversion of characters is performed.
The LoadFromString method serves for the assignment of values to the variable of the String type (i.e. the inverse method to the SaveToString).
var oData = pMe.Pm("/Data");
var sCsv = oData.SaveToString();