Hello everyone, we have following situation, we need to log different values on our PLC for min. 180 days. Currently we do this with the datalogger of the PLCNext Engineer and store the values in SQLite databases. Are there possible ways, to query those databases remotely e.g. via REST by deploying an extra non real-time application? Our first idea was to try to install Node.js and use Express API. But unfortunately the Node.js installation has been removed from the store. Suggestions on how to achieve this would be highly appreciated.
Historical data from the DataLogger can be accessed from a remote machine through the OPC UA server, using the historical data access feature: https://www.plcnext.help/te/Service_Components/OPC_UA_Server/OPC_UA_historical_access.htm This is demonstrated in this video: https://youtu.be/Npu_obHw1rY So, any software that can access OPC UA historical data should be able to get data from the sqlite database on the PLC. I suppose that most industrial SCADA software (e.g. Wonderware) probably supports this feature.