Sunsynk Connect Dongle: Wi-Fi Pairing and Plant Analytics Setup

Key Takeaways

• Sunsynk Dataloggers connect to the internet via either Wi-Fi or Ethernet; Ethernet takes precedence if both are connected.
• Only 2.4GHz Wi-Fi networks are supported for Datalogger connection.
• Specific firewall ports (TCP 80, 443; UDP 53, 123) must be open for the Datalogger to function correctly.
• The Sunsynk Connect App is required to connect a Datalogger to a new Wi-Fi network.

Connecting Your Sunsynk Datalogger to Wi-Fi and the Sunsynk Connect App

The Sunsynk Datalogger serves as the bridge between your inverter and the Sunsynk Connect monitoring platform, enabling remote access to plant analytics. To establish this connection, the Datalogger requires internet access, primarily achieved through Wi-Fi or Ethernet. For Wi-Fi setup, the Sunsynk Connect App is the primary tool for configuration.

Understanding Sunsynk Connect and Datalogger Operation

Sunsynk Connect provides remote monitoring capabilities, allowing users to track inverter performance, battery status, and energy flows via a web portal or mobile application. The Datalogger facilitates this by transmitting operational data from the inverter to the Sunsynk Connect platform. It can connect to the internet via either Wi-Fi or Ethernet, with Ethernet taking precedence if a cable is connected. Each inverter requiring monitoring within a plant must have its own Datalogger.

The Datalogger features LED indicators to communicate its status: a green light indicates the Datalogger is powered on, while a blue light signifies an active internet connection.

Datalogger Settings and Network Requirements

Proper configuration of your network and Datalogger settings is crucial for reliable data transmission. This includes ensuring the correct Wi-Fi frequency is used and that necessary firewall ports are open.

Troubleshooting Common Datalogger Issues

When setting up or maintaining your Sunsynk Datalogger, you may encounter specific error codes or symptoms. Understanding these can help in diagnosing and resolving connectivity problems.

Installation Safety and Switchgear Requirements

While the Sunsynk Datalogger itself is a low-voltage communication device, its installation involves working near a grid-tied inverter, which handles high DC and AC voltages. Always prioritise safety during installation and maintenance.

1. Isolation Procedure: Before connecting or disconnecting the Datalogger from the inverter, ensure the inverter is fully isolated. This involves:

• • Switching off the AC mains supply breaker to the inverter.
  • Switching off the AC output breaker from the inverter to the load.
  • Switching off the DC isolator for the solar PV array.
  • Switching off the DC isolator for the battery bank.
  • Wait for the inverter's internal capacitors to discharge. Refer to your inverter's manual for the specific discharge time, typically a few minutes.

2. Personal Protective Equipment (PPE): Always wear appropriate PPE, including insulated gloves, safety glasses, and non-conductive footwear, when working with or near electrical equipment.
3. Authorised Personnel: Installation and maintenance of solar PV systems and inverters should only be performed by qualified and authorised technicians. Connecting the Datalogger, while seemingly simple, is part of a larger electrical system.
4. Earthing: Ensure the inverter and associated electrical infrastructure are correctly earthed according to local electrical codes and standards.

What the published sources do not tell you

The available documentation provides essential information for connecting and troubleshooting Sunsynk Dataloggers. However, certain specific details and procedures are not explicitly covered:

• Datalogger Models and Specifications: The sources do not list specific models of Sunsynk Dataloggers (e.g., Wi-Fi dongle, Ethernet dongle, cellular dongle) or their detailed technical specifications such as physical dimensions, power consumption, or operating temperature ranges.
• RS485 Modbus Telemetry Details: While Modbus connections are mentioned in troubleshooting, there are no explicit details on the RS485 Modbus telemetry protocol, specific data points, or register maps for direct integration with other systems.
• Sunsynk Connect App Features: A comprehensive list of app features, interface details, or specific step-by-step setup instructions within the app for functions beyond Wi-Fi configuration are not provided.
• Multi-Inverter Communication Protocols: Beyond stating that multiple inverters can be added to a plant and each needs a Datalogger, the underlying communication protocols or specific setup for multi-inverter fleet monitoring (e.g., master/slave configurations, data aggregation methods) are not detailed.
• Physical Installation Guides: No step-by-step physical installation guides for the Datalogger or its connection to various inverter models are available.
• Firmware Update Procedures: The process for updating the Datalogger's firmware is not described in the provided articles.