About the multi-galaxy environment

Multi-Galaxy communication lets you configure a scalable, distributed automation system that spans multiple galaxies. It also allows you use the IDE to work with galaxies on remote Galaxy Repository (GR) nodes. You can configure connectivity for multiple GRs, browse attributes in multiple System Platform namespaces, and subscribe to attributes at run time across remote GRs.

A basic multi-galaxy environment consists of an IDE-only node (no GR), and two or more GR-only nodes. The GR nodes should not have the IDE installed.

As of System Platform 2017, communication from a GR with a local IDE to a remote GR is blocked by default. See Connect to a remote GR from the IDE to configure multi-galaxy communication between a GR with a local IDE and another GR node, with or without its own local IDE.