6.14.3 Reload of a DTM Object for Another Instance
A Frame Application may reuse one DTM COM object for a number of different field device instances by calling IPersistXXX::Load() several times and with different IStream / IPropertyBag objects as argument.
But, if an IPersistXXX::Load() call fails, the Frame Application must instantiate a new DTM COM object.
It seems like IStream and IPropertyBag have been autocorrected by MS Word to start with small letters.