Data sources / data logger

Last modified: 2026-01-30

In addition to the blue’Log XM/XC from meteocontrol, you can add data loggers from many different manufacturers. Alternatively, you can import data via manufacturer APIs or predefined imports.

General instructions: Set up a data source (data logger, etc.)

For your devices to communicate with VCOM, you need to set up the data sources in the system configuration. A data source can be a blue'Log data logger or any other product listed in the VCOM import compatibility list. See Import data into VCOM for instructions on specific devices and manufacturers.

Prerequisites

The data logger must be compatible with VCOM. See the VCOM import compatibility list.
If the data logger is not directly compatible, you can set up a generic CSV import. See Set up a generic CSV import instead of a data logger.
The data logger must be online.

📗

General tips

Have the data source (data logger, etc.) serial number on hand. When entering the serial number, pay attention to uppercase and lowercase letters and empty spaces.
The data source name can be freely selected. For recommendations, see our Naming guideline.
Set the same measuring interval for all data sources in the system to ensure charts are accurately displayed in VCOM. This is used to normalize uneven timestamps and aggregate smaller recorded intervals into larger ones.
To ensure that the data source measuring interval has been set correctly in VCOM, open an imported file in the Data logger overview portlet in VCOM and check the timestamps.
We recommend ticking the check box Automatic device creation to ensure that VCOM automatically creates any new devices found during each data import.
If possible, perform a connection test once you have completed the configuration in both VCOM and the data source.

Data loggers only

For data loggers, update the firmware to the latest version prior to configuration.
For data loggers, any import that uses FTP can also use SFTP. The access data, such as the FTP server address, user name, and password remain identical. Only the port changes from port 21 (FTP) to port 2222 (SFTP).

APIs only

Each day at midnight, VCOM checks for complete data and requests data from the past 7 days. If there are no limitations from the API and the data is available, the gaps will be filled.

Steps

At system level , go to System configuration > Data sources > Data logger overview.
Under New source of the type, select the data source from the dropdown and select Add.
Fill in all empty fields.
- Please note that the information required for each manufacturer will vary, but may include a device name, serial number, measuring interval, API, or FTP information. See also Import configuration for selected data sources.
- The measuring interval must be the same as that of your local data logger.
Verify that the data source is communicating with the meteocontrol server. See Verify communication with the meteocontrol server.

Verify communication with the meteocontrol server

There are different ways to verify whether your data source is transmitting data to VCOM:

At system level , add the Data logger overview portlet from the Portlet center. Check the column Last contact to see if data has been transmitted.

Check VCOM’s last contact with the data logger in the Data logger overview portlet

At system level , go to System configuration > System > Technical data and check the date under Last data input.

Check VCOM’s last data input in the Technical data overview

At system level , select the Evaluation tab and check whether energy is being generated in the Energy generation chart.

Confirm whether energy is being generated in the Energy generation chart

At portfolio level , go to Administration > Data > Data logger server contact. Enter the hardware serial number or its relevant ID in the Data logger field and select Search. The latest server contacts are displayed in the list.

Check the latest server contacts

Note

Please contact our Support team if there is a communication problem.