PACSystems Sequence of Events


Event data collection is crucial in safety and critical control applications. GE's Sequence of Events (SOE) solutions can capture both the first event and sequence of events that occur in your system during a shutdown or a trip sequence to help you document when events have occurred. Providing accurate detection, recording and storing of events and leveraging highly accurate time stamps, our SOE solutions enable you to analyze when change of states occurred in your process and the precise order of occurrence, down to the millisecond.

Available as a downloadable package, our SOE offerings are fully documented solutions for our PACSystems RX3i and RX7i programmable automation controllers (PACs). These solutions consist of a PAC application code, a Windows® application for Proficy Historian or Microsoft® SQL data collection, solution instructions, and example analysis screens for Proficy Real-Time Information Portal. They are suitable for any application whereby change-of-state data improves the ability to view, analyze and optimize process sequence and effectiveness.

Solutions:

  • PACSystems RX7i Embedded SOE – Sequence of Event Recording for RX7i PACSystems, utilizing VME digital event capture board, time synchronization board and on-board mirrored event buffering.
  • PACSystems RX3i Soft SOE – Software-Based Sequence of Event Recording for RX3i PACSystems; configurable solution utilizing standard RX3i input modules with events buffered in PAC memory.
  • PACSystems RX3i ENIU with SOE – Software-Based Sequence of Event Recording in RX3i remote Ethernet I/O racks utilizing RX3i Soft SOE technology; configurable and supports standard modules and event buffering in the remote racks, including transient event annunciation. This solution is also supported in our PACSystems high availability control architectures, including Proficy Process Systems.

Benefits include:

  • Enables better decision making
  • Accurate determination of "root cause" after a mission critical event
  • Provides quicker time to solution
  • Improves accuracy of data
  • Reduces development costs
  • No special modules to stock

Key capabilities:

  • Real-time time stamping for up to 8192 digital inputs
  • 1 msec accuracy to Coordinated Universal Time (UTC)
  • High rate of continuous event recording
  • High buffering capability
  • Configurable filters
  • Basic and advanced reporting
  • Historical data analysis
  • Standard input modules
  • RX3i supports Hot Swap IO
  • Time synchronization (optional)

How it works:

  • RX7i Embedded SOE - Each change-of-state input can be configured to be time stamped with millisecond accuracy. The time-stamped information is moved into the SOE module buffer and mirrored buffer and is cyclically transferred to the PAC SOE buffer, which is periodically transferred over Ethernet to the Historian collector. The Historian collector then immediately stores the SOE data into the Proficy Historian database.
  • RX3i Soft SOE - The RX3i CPU scans the IO modules every millisecond. All configured SOE points are stored into the PAC SOE buffer, which is periodically transferred over Ethernet to the Historian collector. The Historian collector then immediately stores the SOE data into the Proficy Historian database.
  • RX3i ENIU with SOE - The RX3i ENIU scans the IO modules every millisecond. All configured SOE points are stored into the ENIU SOE buffer. Very 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 IO exchange and frequently transferred over Ethernet to the Historian collector, which accumulates the data from all of the ENIUs and stores it directly into the Proficy Historian database.

Technical specifications:

RX7i Embedded

  • Up to 4 modules per RX7i rack (64 digital inputs per module)
  • Redundant 3,072 event on-board buffers
  • 1 msec time stamping
  • VME Time Sync
  • Collection
    • Proficy Historian or Microsoft® SQL
    • 1 per second collection via Ethernet
    • Up to 32 PACSystems (8192 digital inputs)
    • Sustained rate of 400 events/sec/PACSystems
    • 12,800 events/sec sustained rate

RX3i Soft

  • Up to 8 modules (256 digital inputs/rack)
  • 32,000 event buffer in PAC Memory
  • 1 msec time stamping
  • SNTP or Time Sync by local GPS receiver
  • Collection
    • Proficy Historian or Microsoft® SQL
    • 1 per second collection via Ethernet
    • Up to 32 PACSystems (8192 digital inputs)
    • Sustained rate of 400 events/sec/PACSystems
    • 12,800 events/sec sustained rate

RX3i ENIU with SOE

  • Up to 4 modules (128 digital inputs/rack)
  • 32,000 event buffer in PAC Memory
  • SNTP or Time Sync by local GPS receiver
  • Transient Event Annunciation to Main Rack Controller
  • Collection
    • Proficy Historian or Microsoft® SQL
    • Sub second collection via Ethernet
    • Up to 32 ENIU (4096 digital inputs)
    • Sustained rate of 400 events/sec/ENIU
    • 12,800 events/sec sustsined rate

Download these solution by clicking here (for registered customers) or contact a GE representative today.