Configure the OPC Classic DA Collector

Procedure

  1. Access Historian Administrator.
  2. Select Collectors, and then select the OPC Classic DA collector instance that you want to configure.
  3. Select Configuration.
    The Configuration section appears.

  4. Enter values as specified in the following table.
    Field Description
    OPC Server Prog ID The program ID of the OPC server from which you want to collect data.
    Read Mode The read mode that you want the collector to use. For information, refer to the documentation of the OPC server that you are using or the OPC specification on the OPC Foundation website.
    First Browse Criteria A comma-separated first-level search criterion for browsing tags from the data source. The top-level and second-level criteria are used together by the AND operation to browse tags.
    For example, if you enter USGB014 in the First Browse Criteria field and F_CV, B_CUALM in the Second Browse Criteria field, it returns all the tags that contain:
    • USGB014

      -and-

    • F_CV or B_CUALM
    Second Browse Criteria A comma-separated second-level search criterion for browsing tags from the data source. The top-level and second-level criteria are used together by the AND operation to browse tags.
    Threading Model The type of the threading model selected for the collector. The model selected must match the threading model of the OPC server.
    • Multithreaded: Select this option for better performance. We recommend that you configure your collector to use the default multi-threading model.
    • Apparent: Select this option for best compatibility. Some OPC servers do not work well with multi-threading. If you experience problems running your collector with multi-threading, use the apartment model.
    The default setting is multi-threaded. For information, refer to the documentation of the OPC server you are using.
    Configuration Changes Indicates whether the collector configuration changes are processed in real time or after restarting the collector.
    • Made On-Line: Select this option to process any configuration changes immediately (after 30 seconds) after you select the Update button.
      Note:
      • Some OPC servers cannot handle processing configuration changes online. If you experience any instability with changes made online, use the next option.
    • Made After Collector Restart: Select this option to hold all configuration changes until you manually restart the collector.
      Note: Starting and stopping the collector in the General section of the Collector Maintenance page of Historian Administrator does not constitute a manual restart. You must either start and stop the collector from the Services window or the console application.
    To allow configuration changes, you also must enable the On-Line Tag Configuration Changes option on the Advanced section of the Collector Maintenance page of Historian Administrator.
  5. Select Update.
  6. Restart the collector.
    The collector is configured.