SunSpec Modbus for 1547 Certification

SunSpec Modbus, a default communication and interoperability standard specified in IEEE 1547-2018, enables Distributed Energy Resources (DER) and smart inverters to be controlled and monitored by operators, thus enhancing the value of DER and improving grid health. The SunSpec Modbus for IEEE 1547 interface is fully interoperable with IEEE 2030.5 and IEEE 1815, the other communication interfaces identified in IEEE 1547-2018.

Certifying your product to the SunSpec Modbus for IEEE 1547 standard is the simplest and most important step you can take to reduce the time needed for IEEE 1547.1-2020 clause 6 interoperability testing and for achieving UL 1741 SB compliance.

The SunSpec Modbus for 1547 package includes:

    • SunSpec Modbus Fact Sheet
    • SunSpec Technology Overview
    • SunSpec Device Information Model Specification
    • SunSpec DER Information Model Specification
    • SunSpec Information Model Reference Sheet
    • SunSpec Modbus IEEE 1547-2018 Specification, Profile and Implementation Guide
    • SunSpec SVP Dashboard Download
    • SunSpec SVP Dashboard License Request (Membership required)
    • SunSpec Modbus Conformance Test Procedures
    • SunSpec Modbus Test Procedures Results Reporting
    • SunSpec Model Definition (Includes SMDX and JSON) (Download from Github)



Applicable Components

Inverters that need to comply with IEEE 1547-2018.


  • Support for IEEE 1547-2018 with SunSpec Modbus


The SunSpec System Validation Platform (SVP) Dashboard is a Microsoft Windows application that enables visibility and control of SunSpec Modbus-enabled devices. The web browser-based interface leverages standardized SunSpec device information models and a web-service application program interface (API) for test harness integration, certification, and support activities.

Designed to support software developers and software test labs in preparing products for SunSpec Certification, SunSpec SVP Dashboard may be upgraded to include automated test suites for SunSpec Modbus-enabled devices. The following features are included in the SunSpec Modbus for 1547 Plus Pack:

  • A profile for SunSpec Modbus 1547 Certification, including a complete SunSpec Modbus communication verification test that results in a SunSpec Certification mark.
  • A test procedure for SunSpec Modbus for 1547 Certification (that references the IEEE 1547.1 interoperability test procedure) and a CA Rule 21 compliance test procedure.
  • A test procedure for SunSpec Modbus Certification with the addition of a 1547.1 Interoperability test script.



SunSpec 1547 Initiative News and Updates

Important News for Manufacturers Seeking UL 1741 SB Compliance

Many smart inverter and energy storage system manufacturers are incorporating the SunSpec Modbus interface into their products to achieve UL 1741 SB compliance. If your company matches this description, we have some important information to share. The SunSpec Modbus...

SunSpec Ecosystem Newsletter February 2022

With SunSpec Membership and Certification numbers growing at unprecedented levels, the team is hard at work developing resources to further support our members and benefit the broader SunSpec ecosystem. From SunSpec Modbus, to DER Cybersecurity and 2030.5 Profiles for Vehicle to Grid (V2G) and EV Charging applications, SunSpec is committed to providing technical coverage on cutting-edge topics and equipping our Members with the tools needed to thrive in a dynamic regulatory environment.

SunSpec Ecosystem January 2022 Newsletter

Entering 2022, the SunSpec Alliance is anticipating yet another year of unprecedented growth. From record-setting additions of new members each month (already seven in January!), to rapidly increasing numbers of products being certified to SunSpec standards, the Alliance is on track to grow in-step with the broader Distributed Energy and Electric Vehicle industries.

SunSpec Ecosystem Newsletter December 2021

While reflecting back on the year’s past, it is clear that the SunSpec Alliance is fueled by an industry of dedicated, hard working individuals and organizations. From our work groups participants, to our webinar attendees, we are consistently impressed by the level of engagement and support from our members and followers.

SunSpec Ecosystem Newsletter November 2021

On November 15th, President Biden passed a 1.2 trillion dollar infrastructure bill, signaling an unequivocal win for the renewable energy industry. With roughly $555 billion allocated to climate and clean energy projects, including tax credits for renewables, energy storage, electric vehicles and the transmission grid, we are excitedly anticipating massive growth in many of the sectors that the SunSpec Alliance is actively developing standards for.

SunSpec Ecosystem Newsletter October 2021

At the core of the SunSpec Alliance ecosystem is a steady momentum of progress driven by the dedicated efforts of our seven primary Work Groups. Consisting of representatives from SunSpec member companies, a designated Work Group leader, and a SunSpec employee, these groups meet weekly or bi-weekly to engage in the active process of standards making. As the year barrels towards a close, we’d like to acknowledge some of the major achievements of these groups and their impacts on the SunSpec ecosystem as a whole.