Slide 23 of 30

DNP permits multiple data types in one message. 101 requires one data type per message.

DNP permits multiple points to be controlled in one message transaction sequence (e.g. select/execute). 101 requires a separate transaction sequence for each control point.

DNP relies on an application layer confirm to guarantee the master has received events before clearing them from an event buffer. 101 relies on the security features of the data link layer.

DNP defines specific indications. 101 relies on configuring of particular process variables as indications to provide any necessary functions.