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Case Study

Seamless Integration of Renewable Energy Solutions Into the Power Grid

  • Application Renewable Energy
  • Industry Power 
  • Region Vietnam


Connecting different communication protocols poses a significant challenge for system integrators who are integrating renewable energy solutions into the power grid. In Vietnam, our system integrator faced a complex situation involving the adoption of the end customer’s solutions in a renewable energy operation. The entire system, including the local SCADA/EMS, weather station, inverter cabinet, and string combiner box, operated on Modbus TCP. However, the power quality status of the solar farm needed to be reported to both the local SCADA and the National Power Grid, which uses IEC 60870-5-104 as its communication protocol.

System Requirements

  • The customer’s existing solutions, such as local SCADA, weather station, inverter cabinet, string combiner box, communicate through Modbus TCP.
  • The solar farm must report its power quality status to the National Power Grid, which uses IEC 60870-5-104 as its communication protocol.

Moxa Solution

The MGate 5114 protocol gateway provided an effective solution for converting between Modbus TCP and IEC 60870-5-104. Thanks to a user-friendly web console, configuration was made easy. The web console is easily accessible via the network where the MGate is located. A built-in protocol troubleshooting tool on the console enabled users to swiftly address issues during testing and maintenance. Additionally, our team ensured comprehensive support throughout the deployment and operational stages, guaranteeing a seamless integration process.

With the MGate 5114 Series, the system integrator achieved reliable communication between the renewable energy field and the National Power Grid. The protocol gateway made data reporting efficient and streamlined the integration of Modbus TCP with IEC 60870-5-104. This solution not only made the conversion process simpler but also offered strong troubleshooting and continuous support, ensuring the smooth operation of the renewable energy system in the power grid infrastructure.

Why Moxa

  • Modbus TCP to IEC 60870-5-104 conversion
  • An easy-to-use web console for fast configuration
  • A protocol troubleshooting tool for quickly identifying root causes

Products Used

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