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The Distributed Network Protocol was developed by the Harris company to provide interoperability between electric substations, intelligent electronic devices, remote terminals, and master stations in the electric utility industry. Since introduction, it has been expanded to include other industries, such as water/wastewater, oil and gas, and transportation. The open protocol is currently managed by the DNP Users Group. Hundreds of vendors across the world supply equipment which conforms to DNP.

DNP operates on a variety of physical media. Typically, modem communications over telephone lines are used, but the DNP also specifies a protocol for Internet communications, and DNP has been implemented successfully on corporate networks, as well as cellular, licensed and unlicensed radio systems.

The DNP protocol defines a link layer, a pseudo-transport layer, and an application layer. DNP objects define how data transmitted over the wire are correctly parsed and interpreted by the receiver.

The DNP Users Group defines three implementation levels for equipment. Level 1 specifies a minimum set of features, while Level 3 specifies a complete set of features. The DNP Users Group requires a registered vendor namespace, as well as conformance testing for all intelligent electronic devices.

What Can AB Tech Solution Do for Your DNP Product Development?
  • Obtain the required Vendor namespace for all your DNP products
  • Develop a fully-compliant product for you
  • Add DNP capability to your existing product
  • Enhance the features and functionality of your product
  • Perform conformance / interoperability testing
  • Obtain DNP Users Group certification for your products