GE Fanuc unveils SOE recording for PACsystems

GE Fanuc Intelligent Platforms has announced the availability of its sequence of events (SOE) recording for PACsystems.

The company said the packages minimise plant downtime and deliver a diagnostic tool that is built on the PACsystems control engine and leverages the enterprise connectivity of Proficy Historian.

GE Fanuc's SOE solutions can capture both the first event and the sequence of events that occur in the system during a shutdown or a trip sequence, to help users document when events have occurred.

Providing accurate detection, the recording and storing of events, as well as leveraging accurate time stamps, the SOE solutions enable users to analyse when change of states occurred in the process and the precise order of occurrence.

SOE systems are suitable for applications where change-of-state data improves the ability to view, analyse and optimise process sequence and effectiveness.

Available as a downloadable package, GE Fanuc's SOE offerings are fully documented packages for the company's PACsystems RX3i and RX7i controllers.

These consist of PACsystems application code, a Windows application for Proficy Historian or Microsoft SQL data collection, instructions, and example analysis screens for Proficy Real-Time Information Portal.

Three SOE packages are available.

PACsystems RX7i Embedded SOE utilises a VME digital event capture board, a time synchronisation board and on-board mirrored event buffering.

Each change-of-state input can be configured to be time stamped with millisecond accuracy.

The time-stamped information is moved in to the SOE module buffer and mirrored buffer and is cyclically transferred to the PACsystem's SOE buffer.

In turn, this information is periodically transferred over Ethernet to the historian collector, which stores the SOE data in the Proficy Historian database.

PACsystems RX3i Soft SOE utilises software-based SOE recording for the PACsystems RX3i controller.

It utilises standard RX3i input modules with events buffered in the PACsystem's memory.

The RX3i CPU scans the I/O modules every millisecond.

All configured SOE points are stored in an SOE buffer, which is periodically transferred over Ethernet to the historian collector.

The historian collector then stores the SOE data in the Proficy Historian database.

PACsystems RX3i ENIU with SOE is a software-based SOE package for the PACsystems RX3i controller remote Ethernet I/O racks utilising RX3i SOE software technology.

The RX3i ENIU scans the I/O modules every millisecond.

All configured SOE points are stored in the ENIU SOE buffer.

Fast point changes that would normally not be seen by the head controller can now be captured and stored in the ENIU.

Each event is annunciated to the head controller in the I/O exchange and frequently transferred over Ethernet to the historian collector, which accumulates the data from all of the ENIUs and stores it in the Proficy Historian database.

It supports standard modules and event buffering in the remote racks, including transient event annunciation.

It is also supported in the PACsystems high availability control architectures including Proficy Process Systems.

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