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Data logging and monitoring software for COM, TCP, USB, ports

Our advantages:

  • Our data logging software can capture data from various serial port types (RS232, RS485, USB, VCP).
  • Data logging and monitoring software for many protocols and data formats like TCP, UDP, NMEA, MODBUS, OPC and DDE.
  • Data loggers collect data in real-time 24x7.

Latest news

December 15, 2025
Ann: New build 2.0.2 build 1215 of OPC Scada Viewer is available.
The previous version didn't write a value from the app to an OPC server. More on.
December 15, 2025
New version 1.1.9 build 1215 of the TCP Splitter program has been released.
Resolved a problem when the program reconnected without any reason to the destination TCP server with advanced keep-alive mode enabled. Updated SSL security libraries to the latest version. You can download an update in the Download area.
December 8, 2025
Ann: Advanced OPC Data Logger 4.1.1 build 1208 is available with several changes.
Added support for a percentage deadband for subscribed OPC UA items. Please, go to the download area and get an update.
December 8, 2025
All our data loggers comes with the following changes:
When you clear the list of active variables, the OPC server dialog window used to crash. We fixed that bug. More on.
November 28, 2025
The OPC-HTTP Gateway software has been slightly modified to version 2.0.8 build 1128.
Improved performance for servers with many OPC tags. Updated common libraries to the latest version. The new version of the software you can download in the Download area.
November 28, 2025
Advanced OPC Data Logger has been updated.
We've improved browsing of OPC servers with a large amount of tags. Optimized performance for setups with many tags (10K and more). Fixed problem when the program may stop reading data after some time. More on.

news archive

Our software overview: RS232 software