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  • Proficy* HMI/SCADA - iFIX

    E N H A N C E D F A I L O V E R

    V e r s i o n 5 . 5

    J a n u a r y 2 0 1 2

  • All rights reserved. No part of this publication may be reproduced in any form or by any electronic or mechanical means, including photocopying and recording, without permission in writing from GE Intelligent Platforms, Inc.

    Disclaimer of Warranties and Liability

    The information contained in this manual is believed to be accurate and reliable. However, GE Intelligent Platforms, Inc. assumes no responsibilities for any errors, omissions or inaccuracies whatsoever. Without limiting the foregoing, GE Intelligent Platforms, Inc. disclaims any and all warranties, expressed or implied, including the warranty of merchantability and fitness for a particular purpose, with respect to the information contained in this manual and the equipment or software described herein. The entire risk as to the quality and performance of such information, equipment and software, is upon the buyer or user. GE Intelligent Platforms, Inc. shall not be liable for any damages, including special or consequential damages, arising out of the user of such information, equipment and software, even if GE Intelligent Platforms, Inc. has been advised in advance of the possibility of such damages. The user of the information contained in the manual and the software described herein is subject to the GE Intelligent Platforms, Inc. standard license agreement, which must be executed by the buyer or user before the use of such information, equipment or software.

    Notice

    2012 GE Intelligent Platforms, Inc. All rights reserved. *Trademark of GE Intelligent Platforms, Inc.

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    All other brands or names are property of their respective holders.

    We want to hear from you. If you have comments, questions, or suggestions about our documentation, send them to the following email address:

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  • iii

    Table of Contents

    About This Guide ............................................................................................................................. 1

    For New Users of Enhanced Failover: ......................................................................................... 1

    For Existing Users of Enhanced Failover: .................................................................................... 1

    Terms You Should Know When Working with Enhanced Failover and LAN Redundancy ......... 2

    Components of Enhanced Failover .............................................................................................. 3

    Active SCADA .......................................................................................................................... 4

    Standby SCADA ....................................................................................................................... 4

    Logical SCADA Name .............................................................................................................. 4

    iClient Connections .................................................................................................................. 5

    SCADASync.exe ...................................................................................................................... 5

    SCADARoleMgr.exe ................................................................................................................ 5

    SCADASyncMonitor.exe .......................................................................................................... 5

    iFIXNotificationFG.exe and iFIXNotificationBG.exe ................................................................. 5

    SCADASync.log and ScadaRoleMgr.log Files ......................................................................... 6

    Network Status Display (NSD) tags ......................................................................................... 6

    Enhanced Failover Runtime Information (SCADASync) tags .................................................. 6

    What is Enhanced Failover? ........................................................................................................ 6

    What is my SCADA Role? ............................................................................................................ 8

    Summary of When Role Changes Occur ................................................................................. 8

    Introduction to Enhanced Failover ................................................................................................... 9

  • Enhanced Failover

    iv

    Differences Between Enhanced Failover and Failover in Previous iFIX Releases ..................... 9

    Updated Licensing ................................................................................................................. 10

    More Robust and Efficient Processing ................................................................................... 10

    Support for Database Synchronization .................................................................................. 10

    True Standby Node Support .................................................................................................. 10

    Dedicated SCADA-to-SCADA Network for Improved Communications ................................ 10

    Automatic Switching to Active SCADA .................................................................................. 11

    New NSD Tag Fields .............................................................................................................. 11

    Alarm Acknowledgement Synchronization Change ............................................................... 11

    New Enhanced Failover Runtime Information Fields ............................................................. 11

    Limitations of Enhanced Failover ............................................................................................... 12

    General Limitations ................................................................................................................ 12

    Unsynchronized Items ............................................................................................................ 13

    Database Synchronization for Enhanced Failover ..................................................................... 14

    Synchronized Items ................................................................................................................ 14

    Items that Affect Database Synchronization Performance .................................................... 14

    File Synchronization ............................................................................................................... 15

    Alarm Management for Enhanced Failover ............................................................................... 15

    Understanding Enhanced Failover ................................................................................................. 17

    What Happens when a Failover Occurs? .................................................................................. 17

    Alarm Handling for SCADA Servers .......................................................................................... 18

    Logical Node Names .................................................................................................................. 18

  • Table Of Contents

    v

    I/O Drivers and Enhanced Failover ............................................................................................ 19

    Alarm ODBC Service and Enhanced Failover ........................................................................... 20

    Proficy Historian and Enhanced Failover ................................................................................... 21

    Customizing the Synchronization Process with SCADASync.ini ............................................... 21

    Key Descriptions of SCADASync.ini ...................................................................................... 22

    iFIX Notification and Enhanced Failover .................................................................................... 27

    Description of the Fields in the Notification Table .................................................................. 27

    When iFIX Notification Displays the Message ....................................................................... 28

    How Notification Works, in More Detail .................................................................................. 29

    Configuration Examples: Enhanced Failover ............................................................................. 29

    Recovery Examples: Enhanced Failover Behavior .................................................................... 31

    Scenario 1: Primary SCADA Unavailable .............................................................................. 32

    Scenario 2: Secondary SCADA Unavailable ......................................................................... 33

    Scenario 3: Both Primary and Secondary SCADA Unavailable ............................................ 34

    Scenario 4: iFIX Network to Primary SCADA from the Client Unavailable ............................ 34

    Scenario 5: iFIX Network to Secondary SCADA from the Client Unavailable ....................... 36

    Scenario 6: Dedicated Network Between Primary and Secondary Unavailable .................... 37

    Scenario 7: Complete Network Failure ................................................

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