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AVEVA™ Communication Drivers

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Device groups and device items

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  • Last UpdatedNov 19, 2025
  • 1 minute read

The Device Groups tab in the OI Server Manager user interface is used to create new, modify, or delete device group definitions for an object. For DDE/SuiteLink communications, one or more device group definitions must exist for each PLC that the Communication Driver will communicate with.

Important! For DDE/SuiteLink, it is strongly recommended that each device group (topic) definition contain a unique name for the PLC associated with it. The OPC, however, has the flexibility to use any names, including duplicate names, for the device group definitions.