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DNP3 Protocol Explained in Details A set of communication protocols commonly used by water and electric companies includes the DNP3 stack which is an abbreviation for Distributed Network Protocol. Other companies rarely use the DNP3 protocols. The use of DNP3 stack is advantageous since it eases communication between different types of equipment that are used in collection of data. For the purposes of supervisory management Supervisory control and data acquisition the DNP3 is used for protocol for supervisory management and control. To pass data from master stations to Remote terminal units or intelligent electronic Devices (IEDs) the SCADA systems rely heavily on DNP3 protocols. DNP3 stack was created in a way that is intriguing. A standard that would permit interoperability between different vendors SCADA components for the electrical grid was needed since the IEC 60870-5 was under development.
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DNP3 protocol gives dependable communications in the remote areas that are not suitable for installing electric utility automation systems. The use of DNP3 protocol could help overcome the distortion induced by the EMI. DNP3 stack helps improve the lifespan of the aging components. Poor transmission media may as well be improved through the use of the DNP3 protocol.
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The DNP3 stack was developed in such a way it would be reliable. Although the DNP3 offers the highest dependability; its security is below par. Malicious people or hackers could interfere with the DNP3 protocol. If the DNP3 protocol is the major communication stack major critical infrastructure and control systems could be rendered out of operation due to how insecure the DNP3 stack is. DNP3 protocol has in the recent past gotten new features that have contributed to improved security. Improved security brought about by the authentication features that have been added to the DNP3 stack assures the usage of this protocol. The compliance of DNP3 protocol with IEC 62351-5 makes it very suitable. Just by adding a few features you would not have to change DNP3 protocol if you want to incorporate IEC 62351-5. The suitability of the DNP3 protocol is brought about by its firmness, efficiency and ability to be interoperable than the aged protocols which is as a result of its strong features. Due to its complexity the DNP3 stack cannot be compared with other protocols. The DNP3 protocol is among the best stacks since it offers multiplexing, data fragmentation. To check for errors and link control you could use the DNP3 protocol. Time synchronization with a RTU could be supported by the DNP3 stack. The DNP3 stack could be able to receive adequate data to reconstruct a sequence of events that happens in between the polls. To ensure that the protocol a company settles on is adequate a thorough research and analysis should be carried out.