The DNP3 protocol was originally developed back in the day when a wired connection to devices was the norm. The protocol was designed to be robust and very reliable but not necessarily data efficient. This is normally not an issue with wired connections (serial or Ethernet) or even with wireless connections via Wi-Fi. The amount of data utilized by DNP3 can become an issue when coupled with a cellular data plan. In this case, the volume of data is tied to the cost of the cellular service so keeping data usage low (thereby avoiding overage charges) is an important consideration.
This white paper includes: