ogamma Visual Logger for OPC is an integration tool to:

• Collect data from OPC UA Servers,
• Store the data in a high-efficient Local Storage,
• Forward that data immediately to the Azure IoT Hub or other databases:
  • Microsoft SQL,
  • TimescaleDB (PostgreSQL database optimized to store time-series data), or regular version of PostgreSQL,
  • InfluxDB (versions 1.7, 1.8 and 2.0 are supported),
  • Confluent: Cloud and Enterprise,
  • Apache Kafka,
  • MySQL,
  • SQLite,
  • MQTT Brokers, such as Eclipse Mosquitto, AWS IoT Broker, Google Cloud IoT Core MQTT Bridge, IBM Watson IoT Platform.
• Visualize data using Grafana, acting as a REST back-end for its SimpleJson data source plugin. It can fetch real-time or historical data directly from OPC UA Servers, or from the database.
• Analyze stored data using database-specific queries.

After deployment, ogamma Visual Logger for OPC should be activated with a license key. The license key can be obtained using the online store

For tests, the Community Edition license can be used. It is free, and during the first month, the application has all the features as Enterprise Edition has. After 1 month, the number of logged variables is reduced to 64.

To activate and configure the application, use a web-based GUI (available at port 4880). It will require logging in. To set the username and password used for the first login define environment variables OVL_USER_ID and OVL_USER_PASSWORD. After login, the application will ask to change the password before continuing.

Minimum software and hardware requirements.

Linux x64 OS (Ubuntu 18.04 or Ubuntu 20.04), 4 GB of RAM, 32 Gb of storage.