OPC DA (IPS) tab

Grid of operations and operation groups

This table lists the OPC DA operations that have been predefined on the firewall. The various types of information for each operation/operation group are:

• Name: name of the operation or group of operations.
• Operation no.: numerical identifier of the operation in its group.
• Action: action applied to the network packet corresponding to the operation (Pass/Block)
• Type: indicates whether it is a read or write operation.

Possible operations

Predefined OPC DA operations are allowed by default (Pass action). The buttons Block the selection, Pass the selection and Modify all write ops make it possible to change the action (Pass / Block) applied to the selected operation, selected operation set or to all DA OPC write operations listed in the grid.