Device groups and device items

The Device Groups and Device Items allow you to create new, modify, or delete device-group and device-item definitions for a SIDirect Symbolic object.

• For DDE/SuiteLink communications, one or more device-group definitions must exist for each PLC that the SIDirect Communication Driver communicates with.

• Each device-group (topic) definition must contain a unique name for the PLC associated with it.

Each configuration view associated with objects in the SIDirect Communication Driver hierarchy tree has a Save button. When you modify the Parameters, Device Groups, or the Device Items dialog box, click Save to implement the new modifications. If you try to open another configuration dialog box you are prompted to save the new data to the configuration set.

• Device Group Definitions

• Device Item Definitions

• SIDirect Scan-Based Message Handling

• Using the S7 Tag Creator

• Unsolicited Message Handling