7/30/2019 TI36J06A20-01E_001

1/15

TechnicalInformation

ExaplogEvent Analysis PackageAnalytical Examples

TI 36J06A20-01E

TI 36J06A20-01ECopyright Sep. 1999 (YK)1st Edition Sep. 1999 (YK)

Yokogawa Electric Corporation2-9-32, Nakacho, Musashino-shi, Tokyo, 180-8750 JapanTel.: 81-422-52-8067 Fax.: 81-422-52-9802

7/30/2019 TI36J06A20-01E_001

2/15

Blank Page

7/30/2019 TI36J06A20-01E_001

3/15

i

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

IntroductionThis document contains actual examples of how Exaplog is used for process analysis.

For an overview of the concepts and special features of Exaplog, refer to the separateExaplog Event Analysis Package Overview, TI 36J06A10-01E.

For specifications, see NTPS100 Exaplog Event Analysis Package GS 36J06A10-01E.

Media No. TI 36J06A20-01E (MO) 1st Edition : Sep. 1999 (YK)All Rights Reserved Copyright 1999, Yokogawa Electric Corporation

7/30/2019 TI36J06A20-01E_001

4/15

Blank Page

7/30/2019 TI36J06A20-01E_001

5/15

Toc-1

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

CONTENTS

s TRADEMARKS

CENTUM is a registered trademark of Yokogawa Electric Corporation. Exaplog is a trademark of Yokogawa Electric Corporation. Windows NT is a registered trademark of Microsoft Corporation. Ethernet is a registered trademark of XEROX Corporation.

Other company names and product names in this TI are registered trademarks or trademarksof respective companies.

Exaplog

Event Analysis Package Analytical Examples

1. Simple Examples of Process Analysis using Exaplog.......................... 1-1

1.1 Analyze Process Requests............................................................................. 1-1

1.2 Analyze Operator Work. ................................................................................. 1-5

TI 36J06A20-01E 1st Edition

7/30/2019 TI36J06A20-01E_001

6/15

Blank Page

7/30/2019 TI36J06A20-01E_001

7/15

1-1

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

1. Simple Examples of Process Analysisusing Exaplog

This TI contains simple examples of the procedures for analyzing actual event data from achemical plant.

1.1 Analyze Process Requests.(1) The EBT graph (at the upper left) indicates process requests and operator work. Lets

analyze the time span between 15:00 and 18:00 where excessive process requestsoccurred. The Point ID Sort Window indicates that the tag F2272PDI36 producedthe most events in this time span.

F010101.EPS

7/30/2019 TI36J06A20-01E_001

8/15

1-2

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

F010102.EPS

(2) Display information on the tag F2272PDI36 only. The Message Summary Windowat the lower left indicates that HH, HI and NR frequently occurred at the tag.

F010103.EPS

7/30/2019 TI36J06A20-01E_001

9/15

1-3

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

(3) Lets check if the tag produced alarms regularly or temporarily.The EBT graph indicates that the tag produced many alarms in the time span only.When checking the conditions of the previous day, you will see that no alarms oc-curred.

F010104.EPS

F010105.EPS

7/30/2019 TI36J06A20-01E_001

10/15

1-4

TI 36J06A20-01E

A flood of HI and HH alarms occurred from a differential pressure controller thatcontrols a vent/vacuum filter, when materials that were different from ordinary oneswere injected. The same furnace is used to produce various products in the chemicalindustry, so a flood of alarms occurs if alarm settings of pressure valves and otherswere not properly adjusted depending on materials. However, the operator ignored

alarms because he/she knew that they often occur due to difference in materials. Thisimplies that he/she may ignore important alarms.

The Exaplog analysis allows you to eliminate the causes of problems on the EBTgraph and continue to analyze unbalanced areas - to keep balance between processrequests and operator work.

F010106.EPS

1st Edition : Sep.01,1999-00

7/30/2019 TI36J06A20-01E_001

11/15

1-5

TI 36J06A20-01E

1.2 Analyze Operator Work.(1) The EBT graph (at the upper left) indicates process requests and operator work. Lets

analyze the data around 6:00 where the operator conducted many operations. ThePoint ID Sort Window indicates that MV of the tag R4500YIC58 produced the most

events in this time span.

F010201.EPS

F010202.EPS

1st Edition : Sep.01,1999-00

7/30/2019 TI36J06A20-01E_001

12/15

1-6

TI 36J06A20-01E

(2) Display information on the tag R4500YIC58, MV. The Message Summary Windowat the lower left indicates that the operator manually opened and closed valves manytimes.

F010203.EPS

1st Edition : Sep.01,1999-00

7/30/2019 TI36J06A20-01E_001

13/15

1-7

TI 36J06A20-01E

(3) Lets check if the tag was manually manipulated at regular intervals during the day, orjust once.The EBT graph indicates that it was manipulated at regular intervals. When checkingthe data on the previous day, you will see the operation was also conducted regularly.

F010204.EPS

F010205.EPS

1st Edition : Sep.01,1999-00

7/30/2019 TI36J06A20-01E_001

14/15

1-8

TI 36J06A20-01E

The automation of the operation would reduce the operators work.

The Exaplog Event Analysis Package helps you identify and reduce alarms/inefficientoperation - and improve efficiency. The continuous analysis of process unbalances onthe EBT graph allows you to optimize plant operation.

F010206.EPS

1st Edition : Sep.01,1999-00

7/30/2019 TI36J06A20-01E_001

15/15

i

TI 36J06A20-01E 1st Edition : Sep.01,1999-00

Revision Information

q Title : Exaplog Event Analysis Package Analytical Examples

q Manual No. : TI 36J06A20-01E

Sep. 1999/1st EditionNewly published

Written by Process Information System Center

Industrial Automation Systems Business Div.

Yokogawa Electric Corporation

Published by Yokogawa Electric Corporation

2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN

Printed by Yokogawa Graphic Arts Co., Ltd.

Subject to change without notice.