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Data Administration
Data Sources
Data Sources
Workflow provides the ability to connect to external data sources to access the data contained within those applications.
GE Historian Data Source
The GE Historian data source allows you to connect to Historian servers to read from and write to Historian data tags. You add Historian tags to Workflow and then use those tags as data sources throughout Workflow.
Change the GE Historian server
You can connect to a new GE Historian server at any time and maintain all the links to equipment properties, condition events, and workflow data items. You retain the alias for the server but change the server address.

Workflow Products Documentation

Data Administration
- Data Administration Introduction
- Electronic Signatures and Audit Trails
- Data Sources
  - Data Sources
    Workflow provides the ability to connect to external data sources to access the data contained within those applications.
    - Configure a data source item for a resource
      This procedure is used to configure data source items for equipment, events, and workflows.
    - GE Historian Data Source
      The GE Historian data source allows you to connect to Historian servers to read from and write to Historian data tags. You add Historian tags to Workflow and then use those tags as data sources throughout Workflow.
      - Add a GE Historian server
        You can add an GE Historian server as a data source.
      - Change the GE Historian server
        You can connect to a new GE Historian server at any time and maintain all the links to equipment properties, condition events, and workflow data items. You retain the alias for the server but change the server address.
      - View and synchronize GE Historian tags
        You can browse the status of current tag and event details available on the GE Historian server, as well as resynchronize all server tags with client tags.
      - Remove orphaned GE Historian tags from Workflow
      - GE Historian Synchronization Tips
        The following information provides guidelines for improving the performance of your GE Historian synchronization process.
    - OPC Client Data Source
      An OPC client provides direct access to data served by OPC Data Access (DA) servers without relying on GE Historian as a bridge between an OPC server and Workflow.
    - OPC UA Client Data Source
      The OPC Unified Architecture (UA) client provides direct access to data served by OPC UA servers.
    - Database Service Providers
      The database service provider allows you to connect to data sources and retrieve or update information for SQL and ODBC statements and procedures.
    - Data Types
      Data types define the format that data is stored in and displayed as for variables, specifications, and other resources.
- Archives
- Custom Property Types
- Transferring Workflow
- Reporting

Change the GE Historian server

You can connect to a new GE Historian server at any time and maintain all the links to equipment properties, condition events, and workflow data items. You retain the alias for the server but change the server address.

Before you begin

To prevent links between GE Historian tags and equipment properties, condition events, and workflow data items from breaking when you change servers, you must make sure that all the tags that exist on the original GE Historian server also exist on the server you are switching to. If the original server has tags that do not exist on the new server, those tags will not be available when you switch to the new server and synchronize the tags.

About this task

Note:

Workflow supports GE Historian 4.5 or greater.
You cannot change the alias of your GE Historian server, even when you change servers. To change the alias, you must delete the connection and add a new one.

Procedure

In the navigator, click Proficy System > Proficy System > Historian.
From the Historian Servers list, select the display name of the server that you want to change.
From the Displays panel, select HW/SW > Data Source Editor.
The Data Source Editor appears.
In the Server Name field, enter the address of the GE Historian server you want to change to.
If security is enabled on the GE Historian server, enter the user name, password, and domain for this server.
Click Save.