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
- October 26, 2026
- OPC-HTTP Gateway comes with the following changes:
What's new
- A REST API for your software. "http://gateway/api/v1/" takes and answers JSON with real types: numbers, true/false, strings and arrays, data type names, etc. OpenAPI Generator, NSwag, Postman or a similar tool can prepare ready-made calls for every request in your language.
- OpenAPI for the classic requests too. "/openapi.json" describes the existing requests the same way.
- Write arrays. An array tag can now be written in the same form a "read" returns it.
- Read and write single elements or a range. "index" and "count" select a part of an array. On OPC UA the server changes the elements in one step.
What's fixed
- Boolean writes. "value=1" and "value=TRUE" now write true.
- One answer per request. A request refused for a missing parameter got two answers.
- Cyrillic and other non-Latin text are written correctly (OPC UA). Please, go to the download area and get an update. - October 7, 2026
- A new version 4.1.9 build 1007 of the Advanced PBX Data Logger software is now available.
We've fixed the software bug while the program recalculates a call cost. Improved parser for several PBXs. Improved PBX parser compatibility with non-standard regional settings. Added a new online utility to check or autodetect SMDR data format. The new version of the software you can download in the Download area. - October 7, 2026
- Advanced USB Port Monitor 2.8.2 build 1007
We've improved the performance of decoding USB data packets, translations, and compatibility with Windows 11. Download. - September 18, 2026
- AGG Software has released an update for OPC-HTTP Gateway, bringing it to version 2.1.0 build 918.
- The gateway no longer stops answering (or, with KEPServerEX, freezes) after it closes an OPC server connection.
- get-servers now lists only servers registered with the OPC UA discovery server (LDS), each with its endpoint URL.
- A failed request now says why in a "message" field.
- Add trace="1" to the Log node in the settings to record every request and OPC operation with timings. The new version of the software you can download in the Download area. - September 16, 2026
- New version 4.1.7 build 916 of the Advanced OPC Data Logger program has been released. Some bugs have been fixed.
Fixed an issue with exporting group variables separately in the OPC UA interface. In the same mode, an issue with exporting the group name in other interfaces has also been fixed. Download. - September 14, 2026
- OPC-HTTP Gateway 2.1.0 build 914 has been released. This update fixes some small "bugs".
The new OPC HTTP Gateway is available for both OPC DA and OPC UA. This update makes secure deployments the default and fixes a long-standing issue that could stop WebSocket updates after extended run times.
- Modern HTTPS out of the box. When SSL is enabled, the gateway now speaks TLS 1.2 and above with strong ciphers and turns away obsolete, insecure protocols. Still have to support an old client for a while? A new opt-insetting keeps you running until you can upgrade it.
- Reliable real-time streaming. We resolved a problem where, after running for a long time or handling many client connections, the gateway could stop pushing OPC value changes over WebSocket - and stop answering new subscriptions - until it was restarted. It now detects and re-establishes a dropped OPC connection automatically, and always sends a reply to a subscribe / re-subscribe request, so clients are never left waiting in silence.
- Point it at any configuration. The new "-config" command-line option lets you start the gateway with any configuration file - ideal for multi-site setups or keeping configurations in a central folder.
- Hardened and more resilient. Improved login handling for shared connections, timing-safe password checks, protection against oversized or malformed requests, and smoother handling of network interruptions and unresponsive OPC servers.
Existing deployments gain the reliability and security fixes with no configuration changes required. The new version of the software you can download in the Download area.
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