Related Values Processing Framework (RVPF)
Overview
The Related Values Processing Framework is being developed to help the integration of Process Control Data Historian Systems. This is done by providing support for the conversion, computation and di
Tutorial Details:
The software is written in Java, uses Jython for scripts and XML for configuration files. Except for the J2SE JRE, all containers or libraries needed to use this software (JBoss, Jython, dom4j, etc.) are available in Open Source.
The support for specific Historian Systems WILL NOT be included in this project. Instead, documented interfaces for the integration of such support will be provided.
Since this is a framework for a very technical subject, it is expected that its users will be integrators with expert level knowledge and technical skills.
Context
The focus of this project is on the circulation and processing of manufacturing points data. By point data, we mean a reference to a point definition, a timestamp, a state and a value. The point definition specifies where the data comes from, where is is stored, what it contains, what effect it may have on other points data, etc. The timestamp indicates when the contained value was generated. The state qualifies the value. The value can be a count, a floating point value, a text string, or anything acceptable at the point of storage.
The points data will usually come from some SCADA (Supervisory Control And Data Acquisition) or DCS (Distributed Control System) implementations. It is assumed that time-critical responses have already been provided by lower level systems.
Status [2004-09-02]
* The intended functionality for release 1.0.0 is complete.
* Testing and refinement is ongoing.
* The internal documentation is improving.
* The external documentation is still minimal.
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Related Values Processing Framework (RVPF)
Related Values Processing Framework (RVPF)
Overview
The Related Values Processing Framework is being developed to help the integration of Process Control Data Historian Systems. This is done by providing support for the conversion, computation and di
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