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OPAL-RT's DNP3 Master I/O interface allows connecting with DNP3 slave(s) and read/write analog and binary data points. The read operation can be configured either in polling mode or in unsolicited response mode. Using a standard network interface card, this protocol can be easily and rapidly integrated into any simulation model.
DNP3 is an open and public protocol developed with the aim to  to achieve open, standards-based Interoperability between substation computers, RTUs, IEDs (Intelligent Electronic Devices) and master stations (except inter-master station communications) for the electric utility industry. It is now used across several industries.

Platform Compatibility

Product Selection Guide

This communication protocol can be added via software license to OPAL-RT real-time simulators without any additional hardware add-on modules. The base license comes with 50 data points (Visit this website more information on data points) but if additional data points are required, then additional data points may be added via product OP3050. Since real-time simulators come with one available ethernet port, if additional physical ethernet ports are required on the real-time simulator, these can be added via kit. Note that for applications requiring many ethernet ports, the OP4510 platform is not recommended.

TypeProduct Number(s)OptionalDescriptionSimulator CompatibilityAdditional requirement(s)

Driver - DNP3 Master communication protocol for exchange of data between master stations and RTU and IED - 50 data points included. Additional data points may be added with the OP3050 product.





License for additional I/O data points for Ethernet-based communication protocols. 1000, 5000 or 30000 (unlimited) data points may be added.

Add-on moduleOP3821

Dual-port PCI-E X1 Gigabit Ethernet Kit for OP4510 Real-Time Simulators. Can be added if more physical ethernet ports are required for Modbus TCP.

OP4510 requires its PCIe slot to be available
Add-on moduleI350T4V2BLK

Intel I350T4V2 Quad Port Ethernet Server Adapter 10/100/1000 Mbps. Can be added if more physical ethernet ports are required for Modbus TCP. 

Open PCIe slot required
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