Distributed SQLTags

SQLTags offer a number of different configuration options. By default, SQLTags are driven by Ignition and stored internally. However, using the Database SQLTags provider, it is possible to store SQLTag configuration and values in an external database. This database can hold tags from multiple Ignition gateways, and each of those gateways will be able to access the tags driven by the others.

Using this methodology it is possible to aggregate multiple remote sites and built a cohesive system that spans multiple parts of a single plant, or multiple separate plants entirely.