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Service Interfaces
Workflow Methods
IOpcClient
IOpcClient allows you to read from the OPC Client model.
AddOPCGroup (IOpcClient)
Adds an OPC group to the specified OPC server.

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Service Interfaces
- Service Interfaces
- Workflow Methods
  - Workflow Methods
    Workflow provides a set of core service interfaces and call methods for you to use when creating a workflow. This section describes these core service interfaces and the associated call methods.
  - IArchiveManagement
    IArchiveManagement allows you to create an archive file and select the data to include.
  - IAuditTrail
    IAuditTrail allows you to write entries to the audit trail.
  - IDatabaseService
    IDatabaseService provides access to relational data, such as databases.
  - IDirectorySearch
    IDirectorySearch allows you to search the Directory of Resources for a set of resources based on a search query, or for a list of resources based on a resource class.
  - IEmailService
    You can use IEmailService to send emails as part of a workflow process.
  - IEquipment
    IEquipment allows you to read from and write to the Equipment model.
  - IEquipmentConfig
    IEquipmentConfig provides methods for configuring the equipment model.
  - IEquipmentHistorian
    IEquipmentHistorian allows you to read from and write to Historian tags.
  - IEvent
    IEventManager allows you to read from the Event model and to create an event subscription for a specific event resource.
  - IExtensionData
    IExtensionData allows you to access temporary workflow data that was previously stored in a system repository. This stored data can be associated with both internal and external systems.
  - IITService
    IITService allows you to read from the Proficy System model.
  - ILicense
    The ILicense service method provides access to active licensing information.
  - IMaterial
    IMaterial allows you to read from and write to the Material model.
  - IOpcClient
    IOpcClient allows you to read from the OPC Client model.
    - AddOPCGroup (IOpcClient)
      Adds an OPC group to the specified OPC server.
    - AddOPCItem (IOpcClient)
      Adds the specified OPC item to the specified OPC group.
    - CreateDataSourceLink (IOpcClient)
      Creates a data source link that can be used to access an OPC item.
    - CreateDataSourceLinkWithAttributes (IOpcClient)
      Create a data source link that can be used to access an OPC item.
    - DeleteOPCItem (IOpcClient)
      Deletes the specified OPC item from the specified OPC group.
    - WriteGroupData (IOpcClient)
      Writes to a group of OPC items simultaneously.
  - IOpcUa
    IOpcUa allows you to read from the OPC UA model.
  - IPersonnel
    IPersonnel allows you to read from and write to the Personnel model.
  - IProductionModel
    IProductionModel allows you to read from or write to the Production model.
  - IProductionReport
    IProductionReport allows you to read from the Production model.
  - IProductionRuntime
    The IProductionRuntime service interface relates to production oversight.
  - IProficyHistorian
    IProficyHistorian allows you to manage Historian servers, including reading from and writing to Historian collectors and tags.
  - IPropertyGroup
    IPropertyGroup allows you to read from or write to the properties of a resource.
  - IResourceLinking
    IResourceLinking allows you to work with resource links for all types of resources. You can start, edit, end, and query links between resources in your system.
- iFix Service Provider
Operator Task List in the Workflow Client
Best Practices

AddOPCGroup (IOpcClient)

Adds an OPC group to the specified OPC server.

Inputs	Data Type	Description
OPC Server	DirectoryResource	Specifies the OPC server under which the group is created.
Group Name	String	Specifies the name of the OPC group.
Group Description	String	Specifies the description of the OPC group.
Update Rate (ms)	int32	Specifies the rate in milliseconds that the server is requested to update items in the group.
Enabled	Boolean	Specifies whether the group is enabled. True if so; otherwise, False. Note: The default is True.
Device Read	Boolean	Specifies whether to read directly from the device or read from the OPC server's cache. True if so; otherwise, False. Note: The default is True. If false, reading is performed against the OPC server's cache.
Deadband (%)	Single	Specifies the minimum percentage of the value range of an item that a value in the group must change to trigger a data changed event.

Outputs	Description
Response	Returns a response indicating creation of the OPC group.