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. DNP3 stack is not common with other companies. The use of DNP3 stack is advantageous since it eases communication between different types of equipment that are used in collection of data.

DNP3 protocol is the mainly used in supervisory control and data acquisition (SCADA) which is a system of control that uses computers for the purpose of supervisory management. SCADA systems rely heavily on DNP3 stack especially to pass data from master stations to Remote Terminal Units or intelligent electronic Devices (IEDs).

The way DNP3 stack came about is fascinating. 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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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. The protocol extends the lifespan of the aging components, which may now last for decades. Drastic improvement in transmitting of data would be witnessed when DNP3 protocol is used.
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The DNP3 stack was developed in such a way it would be reliable. DNP3 protocol is not that secure. Actually it’s not that secure and it could be attacked by any hacker or spiteful people. So control systems and critical infrastructure could be interfered with especially if the DNP3 stack is the major communication protocol. DNP3 protocol has in the recent past gotten new features that have contributed to improved security. Secure authentication features has been added to the DNP3 protocol. The compliance of DNP3 protocol with IEC 62351-5 makes it very suitable. The compliance of DNP3 protocol with the IEC 62351-5 makes it less challenging when switching to either of the two.

Firmness, efficiency and ability to be interoperable than the aged protocols makes DNP3 very suitable. You cannot compare the DNP3 protocol with any other protocol due to its complexity.

The DNP3 protocol is among the best stacks since it offers multiplexing, data fragmentation. DNP3 protocol is good since it could help check for errors and link 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. To ensure that the protocol a company settles on is adequate a thorough research and analysis should be carried out.