DeltaV™ Continuous Historian

Introduction

Are you looking for a distributed control system with a state-of-the-art historian? The DeltaV Continuous Historian provides a database designed for historical storage, retrieval, integration into the DeltaV system, and open access. As a product of Emerson, it supports the Plantweb digital ecosystem and provides a data repository for information from intelligent field devices. It is a vital component of the DeltaV system, fully integrated into configuration, installation, and operation.

Continuous process data is collected by the DeltaV Continuous Historian on any DeltaV workstation.

Benefits

• Fully integrated history configuration and data collection: Simplifies initial and long-term management. Configuration is part of DeltaV module configuration, and tags are automatically configured upon module download.
• Status collection with every value: Automatically collects status with every data value, without impacting historian licensing.
• Fully functioning historian on every DeltaV workstation: All DeltaV workstations include a fully functional historian with capabilities like data compression and seamless communication over the DeltaV control network. Historical data can be viewed locally or on other DeltaV workstations.
• Integrated tools for viewing historical data: Data collected by the historian can be displayed with associated alarms and events in a single interface. Alarms and events are superimposed on the trend for a complete picture of process history.
• Excel-based reporting and analysis tool: DeltaV Reporter, an Excel-based tool, allows for data analysis and report creation within a spreadsheet.
• Open connectivity using OPC and XML: External access is provided via OPC format (DeltaV OPC History Server, based on OPC HDA) and XML format (DeltaV History Web Service, based on Microsoft .Net technology).
• Historical data available in operator display: Data is available for viewing and analysis as embedded trend displays in DeltaV Live and DeltaV Operate.
• Ability to write history for non-DeltaV data: A Historical Data Write Interface allows programmatic writing of historical data from external sources.

Product Description

The DeltaV Continuous Historian, developed by Emerson, stores and retrieves process measurements and their associated status quickly and efficiently. It is built for the DeltaV system as an integral part of the Plantweb architecture. Configuration of parameters for collection is an integral component of a DeltaV control module, with advanced options including data compression limits and marking for automatic collection by an enterprise historian.

Configuration and Management

Each control module in your control strategy contains the historical configuration for its parameters. Parameter status is automatically collected with the value. When a new module is created or deleted, the DeltaV Continuous Historian is notified, and parameter collection is adjusted accordingly.

The DeltaV Continuous Historian database is managed through an Administration utility, which is provided on every DeltaV workstation. This utility enables backup, restore, export of datasets, creation of new Active and Extended data sets, and viewing of data set properties. The system supports Active, Current, and Extended data sets. Active and Current data sets are online, while Extended data sets are exported data that can be brought back online. The automated backup utility can manage these data sets programmatically.

The DeltaV Explorer allows users to drag and drop plant areas onto historians to configure data collection. Workstations are downloaded, and communications and history collection begin automatically.

Multiple DeltaV Continuous Historians can be supported in a single DeltaV system, allowing for historical backup capability.

Data Visualization and Reporting

Process History View is used to display data values and status collected by the historian. Users can build custom trend charts or launch historical trends from a module's faceplate in DeltaV Live or DeltaV Operate. Status information and alarm/event data are embedded in the trend for a more accurate historical picture.

DeltaV Reporter is an MS-Excel based tool for historical data analysis and reporting. It provides access to historical data, including time/date stamps, values, and status, and includes a browser for locating historical data.

The DeltaV OPC History Server provides an OPC Foundation HDA interface for accessing historical process data. The DeltaV History Web Service provides web methods for client applications to interact with the historian, returning data in XML or ADO Dataset format.

Embedded trend charts in DeltaV Live and DeltaV Operate display historical and real-time data. These charts can be configured with up to 10 pens (DeltaV Live) or 8 pens (DeltaV Operate) and can connect to a specific historian. Chart Builder facilitates creating trend charts by selecting an object on the display.

Related Products and Prerequisites

Related DeltaV Products: History View Software Suite, DeltaV OPC History Server, OPC .NET Server, DeltaV History Web Service, Backup and Recovery.

Related Third Party Products: Microsoft Excel, OSIsoft PI Server, OSIsoft PI OPC Historical Data Access Interface.

Prerequisites: Use of DeltaV Reporter requires Microsoft Excel.

Ordering Information

DeltaV Continuous Historian on Application Station:

Note: A 250-parameter DeltaV Continuous Historian is standard on every DeltaV workstation. Application Stations can be scaled up to 30,250 parameters. Licenses listed are for the DeltaV Application Station only.

DeltaV Continuous Historian on Non-Application Stations:

Note: Non-Application Stations can be scaled up to a maximum of 3,250 parameters. Licenses are compatible with DeltaV v12.3.1 or later and work on any DeltaV workstation except the Application Station.