Testing the Speedwire communication by using SMA Data Manager

If there is an SMA Data Manager in the system, the product can use the red LED to signal whether the Speedwire communication is working properly. The diagnostic function can only be activated via the user interface of the SMA Data Manager.

Procedure:

  1. Select the Communication diagnostic parameter via the SMA Data Manager user interface and set it to On.
  2. The red LED of the product flashes (250 ms on and 250 ms off): The communication of the Speedwire devices connected in line topology is working properly.
  3. The red LED of the product does not flash: The Speedwire communication is not working properly.
  4. Check the communication link of the products with faulty Speedwire communication.
    Activating the Speedwire communication display
    Decommissioning