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OPAL-RT supports IEC 61850 interfaces to connect to various IEDs via the publishing and subscribing of GOOSE and Sampled Values messages. Using a standard network interface card, this protocol can be easily and rapidly integrated into any simulation model. With the proper user configuration, a driver is initialized on the target simulator at the start of the simulation and begins publishing and subscribing to other IEDs. The IEC 61850 driver makes use of asynchronous threads on dedicated cores in order to achieve high performance. The GOOSE configuration can be easily imported from Configured IED Description (CID) files of the various equipment under test. Messages support native complex data objects and attributes with digital and analog values.
IEC 61850 is a standard for the design of electrical substation automation systems, which defines fast communication of events (GOOSE) or data set samples (Sampled Values) through Ethernet frames. Standard naming and object modelling are based on a Substation Configuration Language (SCL), describing data exchange at device and substation levels. IEC 61850-8-1 Generic Object Oriented Substation Events (GOOSE) is a control model mechanism in which any format of data (status, value) is grouped into a data set that must be sent and received within a time period of 3 milliseconds for the most restrictive protection applications.

Platform Compatibility

Product Selection Guide

IEC 61850-8-1 GOOSE requires software license OP3251, which comes with 50 data points (Visit this website more information on data points). If additional data points are required, then they 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.

IEC 61850-8-1 GOOSE can be added to real-time simulators without the need of additional hardware but a time synchronization modules to maintain high-precision synch and time stamping may be required depending on the application. For more information on precision timing, please visit the following page.

TypeProduct Number(s)OptionalDescriptionSimulator CompatibilityAdditional requirement(s)

Driver - IEC 61850-8-1 GOOSE communication protocols (Publisher and Subscriber) for protection relay interface - 50 data points included

Note that a Time Synch Card (OP3811, OP3812) is required for accurate time synchronization and stamping.

For additional data points, add OP3050.

  • OP3050-1000
  • OP3050-5000
  • OP3050-30000

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

Simulator with OP3252 license.
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
Add-on module: Precision timingSee Precision Timing page


Time synchronization kit with 0.1 ppm oscillator. Supports IRIG-B, 1PPS, IEEE1588.

For more information, including a full list of Precision Timing modules visit the following site.

Requires available slots. Note that OP4510 can only fit one add-on module.
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