Authorization
- Last UpdatedJan 25, 2025
PI Web API impersonates the authenticated Windows user. When an OMF message is sent, the PI System resources are created under the user's security context. For example, if you send an OMF message to create an AF Element Template, but you do not have permissions to create AF Element Templates on the target database, then the OMF request will fail. The minimum required permissions are listed below.
PI Data Archive
|
Item |
Description |
Required Permissions |
|---|---|---|
|
Server |
Controls access to PI DA Server. |
Read |
|
PIPOINT table |
Controls top-level access to Points, Point Classes, and Attribute Sets. Those assets are used for OMF Containers. |
Read, Write |
|
PIDS table |
Controls access to Digital States and Digital Sets. Those assets are used for OMF Enums. |
Read, Write |
PI Asset Framework System
|
Item |
Description |
Required Permissions |
|---|---|---|
|
Server |
Controls access to PI AF Server. |
Read |
|
OMF Database |
Controls access to OMF Database. |
Read |
|
Unit-of-Measure Database |
Controls access to Unit-of-Measure Database. |
Read |
|
Element Templates |
Controls access to AF Element Templates. Those assets are used for OMF Types. |
Read, Write, Delete |
|
Elements |
Controls access to AF Elements. Those assets are used for OMF Static Data. |
Read, Write, Delete |
|
Enumeration Sets |
Controls access to AF Enumeration Sets. Those assets are used for OMF Enums. |
Read, Write, Delete |