About AVEVA Historian data security

AVEVA Historian uses an integrated security model to control who can access and update data for the historian. Using this model, each person and computer that accesses or updates historian data is assigned membership in one of three security groups:

• Administrators

• Power Users

• Users

Data can be passed from any computer that's a member of the historian's Power User or Administrator group. (Computers must be on the same domain as the historian.)

When data is ready to be sent from a remote computer, the AVEVA Historian pushes configuration information, including ACLs (access control lists) that define access permissions, to HCAP on the client computer. HCAP launches IDAS on the remote computer and data is sent through HCAL to the historian.