Whitelist output points for a Read-Write interface

Output points configure the flow of data from Data Archive to the PI interface and its data source, such as a PLC or a third-party database. For example, to write a value to a register in a PLC, use an output point. Each interface has its own rules for determining whether a given point is an input point or an output point. There is no universal PI point attribute that distinguishes a point as an input point or an output point. Refer to the specific interface user guide to determine the optimal configuration for output points.

For enhanced security, create a whitelist of output points. When the whitelist is enabled, the interface verifies that an output point is on the whitelist before updating the data source. The whitelist file is a .csv (comma-separated values) file that lists the PI points approved as output points and the attributes that associate each point with a writable value in the data source.

To create and configure an output point whitelist, see the PI Universal Interface (UniInt) User Guide.