OPC HDA (IPS) tab

Managing OPC HDA services

Predefined services

This table lists the OPC HDA (OPC Historical Data Access) services that have been predefined on the firewall. These services are classified by service set:

• Component Categories,
• OPC Browser,
• OPC Client,
• OPC Server
• OPC Type Library.

Predefined OPC HDA services are allowed (analyzed) by default (Allow action). The buttons Block by service set, Allow by service set and Modify all services make it possible to modify the action (Allow/Block) applied to the selected service set or to all OPC HDA services listed in the table.