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Distributed Network Protocol 3
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Application Layer — Industrial
Protocol Overview
Full Name
Distributed Network Protocol 3
Abbreviation
DNP3
OSI Layer
Application Layer
Category
Industrial
Default Port
20000
About DNP3
Robust communication protocol for SCADA systems in electric utilities and water treatment. Designed for noisy environments with data integrity checks and time-stamped events.
Application Layer
Industrial
Port 20000