The Hoymiles DTU WLite gateway accesses inverters to regulate their performance and monitor power generation. SamaGame shows how to set up and throttle the stick.
Table of contents
- Set up Hoymiles DTU
- Throttling Hoymiles DTU
In this country, balcony power plants are allowed to feed 600 watts into the home network – this will probably happen in the future 800 watts. The performance is limited by a so-called Inverter. Some of these devices are able to regulate their performance. This makes them future-proof and still legal in Germany today. Also the popular inverter Hoymile’s HM-800 is included. It can be throttled using the manufacturer’s own gateway DTU WLite. To do this, the Hoymiles DTU WLite and inverter must be installed “S-Miles installer app” be integrated. You can see how this works step by step here.
Setting up Hoymiles DTU WLite: This is how it works
In order for the setup to be successful, you need one that is already connected Balcony power plant, whose inverter is compatible with the Hoymiles DTU WLite. This applies to models from the HM and MI series and monitoring is possible for up to four solar modules, and it can also control several inverters. Attention: Other accessories are required for Hoymiles HMT and HMS inverters.
Step 1: Stick into the socket
The Hoymiles DTU must be connected to the socket in the home network. To do this, you need a power plug (like a smartphone charging cable) or use a suitable multiple socket that has a USB port. After plugging in, the DTU should flash colorfully.
Step 2: Download the Hoymiles app and create an account
Next, download the app from the App Store on your smartphone S Miles Installer down. Then create a user account. Select the option No account, to register.
Step 3: Integrate DTU into the WLAN
Integrate the DTU into the in-house WLAN. Proceed as follows (here using iOS as an example):
- Open the Wi-Fi settings on the smartphone. There you should have a network with the name “DTUL…” see. Select this so that the cell phone connects to the DTU.
- Go back to the S-Miles app. Go to the middle icon on the bottom ribbon. Tap on Network config.
- Choose among WiFi the name of your router (for example FritzBox) and enter your WiFi password.
- Confirm with Send to DTU.
- Wait for the DTU to connect to your router and tap Completeas soon as the connection has been established.
Step 4: Integrate the inverter and DTU as a system
Go to the left icon at the bottom of the S-Miles app menu. Tap the small plus icon in the top left corner to add an attachment. There you enter your name, performance, time zone and your region (for Germany: scroll to Germany) at. Next you need to provide the serial numbers of the DTU and then the inverter. You can find these on the devices and with the scan function (via the small symbol in the input line) you save yourself having to enter the numbers.
In the next step you can then enter details about the system (orientation, angle) and enter your electricity price. If you use a new DTU, the integration should work without any problems and the system will then be visible.
Hoymiles DTU WLite: Setup error?
You should get the error message “the DTU-SN already exists” received, this means that your stick is already stored on the Hoymiles server. In this case, contact Hoymiles support or your dealer. An unauthorized reset is not possible. There is the word Reset on the stick, which suggests that you can reset the device. But this is apparently only there to reset the network settings.
Throttling Hoymiles DTU WLite
To record electricity generation, there are also cheaper and simpler solutions than the Hoymiles DTU – the measurement data is more of a nice addition, even if Hoymiles prepares the data in a very attractive way. The function of throttling the balcony power plant is probably more important. The DTU ensures that an inverter does not feed in more than 600 watts, even if it offers higher performance.
Throttling works like this:
- Go to the left tab in the bottom menu. Choose your system.
- The menu with the house opens and there is a new ribbon at the bottom. In it, tap on the right icon.
- Choose Performance adjustment.
- Enter a percentage value for the Active power a. In the case of an HM-800, enter 75 percent so that the inverter only feeds in 0.75*800 = 600 watts.
- Press Save.
