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. To ease communication between different types of equipment that are used to collect data it would be wise to use DNP3 stack. 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. It’s interesting how the DNP3 protocol came into being. To permit interoperability between different vendors SCADA components for the electric grid a standard was required and that’s how DNP3 protocol came about.
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In areas where installing electric automation systems are a challenge the DNP3 protocol would be very useful. The use of DNP3 protocol could help overcome the distortion induced by the EMI. DNP3 stack helps improve the lifespan of the aging components. Drastic improvement in transmitting of data would be witnessed when DNP3 protocol is used.
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The reliability of the DNP3 stack cannot be questioned. Although the DNP3 offers the highest dependability; its security is below par. The DNP3 protocol could be interfered with by any malicious person or hacker since it’s not that secure. So control systems and critical infrastructure could be interfered with especially if the DNP3 stack is the major communication protocol. Improved security of the DNP3 stack has somehow reassured their use. Improved security brought about by the authentication features that have been added to the DNP3 stack assures the usage of this protocol. Since the DNP3 protocol complies with IEC 62351-5 they are deemed suitable. Just by adding a few features you would not have to change DNP3 protocol if you want to incorporate IEC 62351-5. Firmness, efficiency and ability to be interoperable than the aged protocols makes DNP3 very suitable. The complexity of the DNP3 protocol cannot be compared with any other source code. Settle for DNP3 protocol if you want a stack that offers multiplexing and data fragmentation. It also helps in checking of errors in systems as well as linking to control. 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. Any company should consider in depth the advantages and disadvantages of the DNP3 protocol and indeed any other protocol.