Niagara licensing in versions prior to NiagaraAX-3.5, uses a “node-locked” model, only. This means that every NiagaraAX license that is generated is unique for a specific host and will not work with any other host. This model is enforced by generating a license that is based on a unique and unalterable value (hostID) that is assigned to the hosting hardware.

Node-locked licensing is still implemented and available in NiagaraAX-3.5. A station running an FLR service requires a node-locked license to start.