Q: Can the free license be used for commercial purposes?
A: Yes, the free license allows both personal and commercial use.

Q: Is there any run-time module available for production use?
A: The Modbus SCADA is distributed as a single executable running in both modes: edit and runtime. Runtime mode can be started automatically when '-runtime' command line argument is provided.

Q: Does the program support multiple Modbus buses? I have 2 serial buses running on different baud rates, so that I must separate them.
A: Yes, the program supports up to 3 serial ports handled independently by separate threads.

Q: Apart of Modbus, are other drivers/protocols supported?
A: No, Modbus SCADA support only Modbus enabled devices. You can use hardware converters to convert to Modbus. There are lot of such converters in the market.

Q: Can I use Modbus SCADA as Modus master and slave simulator?
A: You can use Modbus SCADA as a Master simulator. Just do not create screens, only define tags.

Q: What will happen with my settings and configuration when I upgrade to newest version. How upgrade should be performed?
A: First backup the project folder. Uninstall the old version and install the new one. In the last step copy your backup to the project folder (overwrite all files).

Note that since version 2.0.0 the project folder is located in <commonappdata> folder:

  • Windows 2000, XP, and 2003 - C:\Documents and Settings\All Users\Application Data\WLCSystems\ModbusSCADA
  • Windows Vista, 7, and 8 - C:\ProgramData\WLCSystems\ModbusSCADA

For earlier versions prior to 2.0.0: There is no separate project folder. The project files are all *.cfg and *.bmp files located in your installation directory (typically 'C:\Program Files(x86)\Modbus SCADA').