License and Hardkey required for SCADA node

The SCADA node is the only node in the system with a Hardkey used for Licensing.  Each SCADA node must have its own Hardkey and matching License software control file.   In the full-feature version, an unlimited number of clients can connect to a SCADA node (your License may limit this number).  The number of Tags is also limited on a given SCADA node by the software control license file.