'''Distributed Network Protocol 3 (DNP3)''' is a set of communications protocols used between components in process automation systems. It is primarily used for communications between a “master station” and Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs). | '''Distributed Network Protocol 3 (DNP3)''' is a set of communications protocols used between components in process automation systems. It is primarily used for communications between a “master station” and Remote Terminal Units (RTUs) or Intelligent Electronic Devices (IEDs). |