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How do I know the COM port number?

The COM port to which the USB converter is connected may also be displayed in Windows:

  1. Click with the right mouse button on the Windows start icon
  2. Select the Device Manager
  3. In the category "Ports (COM & LPT)" you will find the assigned COM port.

Do I need administrator rights for DRAGOmodbus?

Administration rights are required during installation, as the USB driver is integrated into Windows at system level. The installation of the driver is only necessary once.

The call and operation of DRAGOmodbus does not require administration rights.

Where can I get the current software version?

Here on this website you will always get the latest version of DRAGOmodbus. After the download, simply run the installer again. Your settings will be retained during the installation.
The current version of DRAGOmodbus is 1.4.2

Why does DRAGOset not found the device at an other USB port?

For each USB interface Windows put on a separate COM port. Therefore, make sure, if possible, the USB converter always be connected to the same USB port.

For a different USB interface of Windows, a new COM port number is assigned. Enter this new COM port setting in DRAGOset menu "Settings | Communications".

Example: PC with USB to RS485 converter

Do you have further questions?

Then ask us your question by email or call our hotline at +49 30 40 998-222.