My company works with many industrial customers.
We often have to talk to machines on the field (robots or sensors).
Traditionnaly, those devices communicate with a Historian database.
I tried to find a way to enable communication between Elasticsearch and the devices. And found two.
Direct communication through OPC UA protocol, using machinebeat or, more tricky, by reading the Historian and sending the data to Elasticsearch.
It now allows us to analyze the devices activity in real time or on the past in order to prevent the future.