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  1. 1. ISA Division Newsletter Safety Summer 2005 Brian Smith, Editor Division Director’s Message By Edward M. Marszal, PE, CFSE Dear ISA Safety Division Member, I am very flattered to have been nominated and approved as Director of the Safety Division of ISA. I am very excited about this opportunity and have big plans to expand the membership of the Division by providing Member benefits that will make the Division a “must have” resource for anyone who is involved with engineering instrumentation containing safety aspects. Some of the plans involve expanding the scope of the Division to cover all facets of instrumentation design that have a safety critical impact. This might include such tasks as alarm system design, alarm rationalization, and security considerations for safety instrumented systems (SIS). I firmly believe that in order to make our Division a success we need to provide benefits that cannot be obtained in any other place. We have had a great start under Paul Gruhn, when we established a Division Symposium that has become a must-attend event for safety practitioners, and a Web site ( that contains loads of information that is not available anywhere else. We hope to renew these events starting in Spring 2006. I’d like to continue this path by continuing to expand the value and size of safety-focused conferences and adding more to the Web site sections that are only viewable by Division Members. I’d like to see the Web site expand from providing the papers of past safety conferences (which is an excellent start) to providing electronic tools and data for performing safety lifecycle tasks. This could includeIN THIS ISSUE: tutorial presentations in PowerPoint, MPEG, or Flash format, spreadsheet tools for performing SIS related calculations, and submittals of actual proven-in-use field data from end users forDirector’s Message 1 various types of equipment. These tools, along with the ability to share ideas and debate tech- niques, both electronically and during conferences, will make Membership in the Division anPast Director’s Message 2 indispensable tool.Safety Instrumented Burner I am also very pleased to announce the 2005 slate of officers and sub-committee chairmen,Management Systems — along with a new line-up of subcommittees.Ready or Not HereThey Come! 3 STAFF SUPPORT: Rodney Jones, ISA, (919) 990-9418, rjones@isa.orgApplication Software VOLUNTEER STAFF: Position Name CompanyFault Analysis 4 Director Ed Marszal Kenexis Director-Elect Bud Adler AE SolutionsAPI Standards and Program/Member Chair Carl Sossman (Acting) WSMSRecommended Practices Webmaster/Newsletter Brian Smith Nova Chemicalsfor Offshore Facilities 6Alarm Management for SUBCOMMITTEES: Burner Management SystemsSafety Alarms 6 Chair Mike Scott AE Solutions Chair-Elect Kevin MakiBook Reviews 7 Control Systems Security Chair David Teumim Consultant Fire and Gas Protection/Detection Chair Charles Fialkowski Siemens continued on page 2
  2. 2. Safety Division Newsletter • Summer 2005 Page 2SUBCOMMITTEES: (continued) Nuclear Safety Chair Troy Martel Past Director’s Message Offshore Safety Paul Gruhn, PE, CFSE Chair David Haysley Albert-Garaudy Associates Safety Division Past Director Chair-Elect C.R.Ragu ONGC I’m pleased to inform Safety Instrumented Systems (Safety PES) you that the Safety Chair Andrew Dennant Emerson Division won three awards in 2003: Safety Field Equipment • Outstanding Divi- Chair Bill Goble sion — Honorable Alarm Management Mention Chair Chris Wilson TiPS • Most Improved Division For anyone who is considering risk-based inspection consulting. In his • Division Communications Awardbecoming active in the Division, it is a current position, he has experience in SIS (tied with the Analysis Division)very satisfying and rewarding experi- implementation and process safety man- We were the ONLY Division to winence. If you see a sub-committee that agement projects for a variety of process three awards! A total of three otherdoes not have a chair-elect and would plants in diverse world-wide locations. Divisions won two awards each. We’velike to participate, please let me know. Marszal received a B.S.Ch.E. from Ohio accomplished a lot in just two years andAlso, we are looking to give Carl State University in 1992 with emphasis have much to be proud of! It wouldn’tSossman, who has been working tire- on control systems and artificial intelli- have been possible without the work oflessly for the Division, a break from has gence. After receiving his degree he all of our board members. I am especiallyseemingly endless responsibility for pro- joined UOP, a licensor of process units to grateful to Brian Smith (our Newslettergram direction with a fresh recruit. I the petroleum and petrochemical indus- Editor/Web Master) and Carl Sossmanhave some ideas, but if you would like tries, where he performed field verifica- (our 2003 Program Chair). The fruits ofto throw your hat in the ring for this tion of control and safety instrumented their efforts are the most visible andhigh-profile position, please let me systems at customer sites, and designed require the most work.know. and managed development of custom I have completed my two-year term as I am looking forward to a great year control and SIS projects. After leaving Division Director. Erwin Icayan will nowwith the Division getting back on track UOP he worked with ERM-Risk, a risk take over as Director. Ed Marszal will bein terms of growth and programming. management consulting firm specializing the next Director-Elect. I can’t think ofFor those of you who don’t know me, in risk analysis and process safety man- two more qualified and capable leaders.I’ve included some bio information agement. In this position he performed A number of the subcommittees arebelow. Please feel free to call or write to and managed risk assessment projects changing faces as well. Butch Taggartdiscuss any questions or comments you that included quantitative analysis. (Offshore Safety) will be passing over hishave about the Division, or safety Recommendations from these projects chair to Don Ogwude. Don is a consult-instrumented systems in general. were used to ensure regulatory compli- ant who spent many years with Chevron ance, justify risk reduction expenditures in California and is a member of the ISAEdward M. Marszal, PE, CFSE and optimize insurance coverage. He SP84 committee. Mike Scott and KevinPresident, Kenexis Consulting teaches many of the Kenexis courses on Maki will be swapping their roles asCorporation process safety management and safety chair and assistant in Burner ManagementPhone: (614) 451-7031 ext. 1 instrumented system design and analysis. Systems. Simon Pate will be passing hisFax: (614) 451-2643 He also regularly lectures on loss preven- chair position in Fire & Gas Systems overMobile: (614) 226-4263 tion topics at Ohio State University. to Robert Seitz. Robert is a PE in AlaskaE-mail: Marszal peer reviews papers for ISA who specializes in such systems and serves Technical Conferences and ISA on several standards committees. Transactions, and is the author of the Palaniappan Kannan will serve as ourBIO: Mr. Marszal has over twelve years award winning ISA book Safety Integrity 2004 Spring Program Chair. Kalpenof experience in safety instrumented sys- Level Selection. He is active in ISA at the Vachharajani will serve as our 2004 Falltems design and risk analysis. He is local and national levels, holding several Program Chair.President of Kenexis Consulting positions with the ISA Columbus Section, Division board members have discussedCorporation and responsible for engi- of which he is currently Vice-President, the idea of having Security receive aneered safeguards design basis consulting and as a member of several safety related much higher profile within the Divisionincluding: safety instrumented system standards committees, including SP84, (than it’s current subcommittee status).implementation projects, process hazards SP91, and SP18. He is a registered pro- We discussed this with the Chair of ouranalysis, quantitative risk analysis, alarm fessional engineer in Ohio and Illinois Security Subcommittee and certain mem-management and rationalization, pres- and also a TÜV certified functional safe- continued on page 3sure relief valve and system surveys, and ty expert.
  3. 3. Safety Division Newsletter • Summer 2005 Page 3 Safety Instrumented Burner Management Systems Ready or Not Here They Come! Michael D. Scott, P.E., Safety Division BMS Chairman VP – Process Safety, AE Solutions, P.O. Box 26566, Greenville, SC 29616 The concept of a Safety Instrumented • EN 50156-1 – A German standard • FM RepresentativeBurner Management System (SI-BMS) is covering electrical equipment for • NFPA 85/86 Representativehere to stay. If you are unsure of this furnaces that is scheduled for • ISA SP84 BMS Sub-Committeestatement one should consider that six revision in 2004. This document Memberdifferent codes/standards currently exist invokes SIS requirements for a • Process Industry End Usersand/or are being revised to invoke the BMS.Safety Lifecycle with respect to Burner • API 556 – Document governsManagement Systems. This includes the design of BMS’s in the petroleumfollowing: industry. Is being revised to invoke • The Black Liquor Recovery Boiler SIS requirements on BMS’s. Advisory Committee (BLRBAC) has developed several guideline To promote the SI-BMS concept, ISA documents regarding design and has developed a Web seminar and is in operation of Recovery Boilers in the process of introducing a one-day the Pulp and Paper Industry. These course on this topic. The schedule for the documents invoke SIS requirements next BMS-related training is as follows: on the Recovery Boiler BMS. • Is a Burner Management System a • FM 7605 – Factory Mutual Safety Instrumented System? Web requires that any PLC listed for use seminar 14 July 2005 & 16 in combustion safeguard service November 2005 meet the SIS requirements con- • Safety Instrumented — Burner tained in IEC 61508. At this writ- Management Systems: A How To ing we are aware of only one ven- Primer One-day seminar (Dates to dor who has a product submitted be announced in the near future) to FM for approval with respect to SI-BMS. If the above subject is of interest to Check out this • SP84 – The ISA SP84 committee you, or if you have other intriguing informative book has formed a BMS sub-committee questions regarding BMS designs, the to develop a document that clari- Safety Division provides an excellent from ISA. fies how SIS concepts apply to a forum to search for answers. This can Go to BMS. Examples being included in be accomplished in three ways: safetyreliability for more the document for each code or 1) Join the Safety Bulletin Board and standard are: post your BMS questions for the information on this and other • NFPA 85 – Single burner boiler Division members to answer. safety-related books from ISA. • NFPA 86 – Thermal oxidizer 2) Plan on attending ISA EXPO 2005 Read a review of this book • API 556 – Process heater with in Chicago. A BMS paper session multiple burners and/or panel session is planned to on page 7. • API 14C – Reboiler address this subject. Contact Mike • API 14C – Heater Treater Scott if you wish to present papers The goal of the SP84 committee and/or participate in a panel session is for industrial users to properly on BMS designs. Past Director’s Message follow the safety lifecycle to define 3) The ISA EXPO 2005 panel session continued from page 2 the risk associated with every BMS will provide a forum for the audi- to determine if it is a SIS. ence to ask questions of industry bers of the SP99 security standard com- • NFPA 86 Committee is planning to experts on the design and applica- mittee. ISA has already had at least two update this standard to reflect their tion of BMS’s. The goal of this Security Conferences. It would make agreement that an industrial BMS panel session is to review NFPA sense for both groups to join forces and is a SIS and that a safety PLC requirements for BMS’s and com- take advantage of the synergy. Perhaps should be used. A linking para- pare/contrast these issues with the we may change our name to the Safety & graph will be added that refers to requirements of SIS standards (i.e. Security Division. Stay tuned for where ANSI/ISA-84.00.01-2004 as ANSI/ISA-84). Erwin may lead us in this area. acceptable methodology. • Proposed Panel Session Members It’s been a pleasure serving with you.
  4. 4. Safety Division Newsletter • Summer 2005 Page 4 Application Software Fault Analysis Palaniappan R. Kannan SISRA Consultants, Singapore 650319, are the ones that can be used effectively • Improper handling of data types A Programmable Electronic System and when they should be used in the • Truncation and rounding off errors(PES) consists of both hardware and process of software development. This • Improper handling of abnormalsoftware. Hardware failures are pre- requires knowledge about the software conditionsdictable whereas software faults and faults that occur in the first place, which • Calculation overflowfailures are not. These software compo- needs to be categorized in order tonents are what make PESs more com- understand the problem areas. Variable Initialization: The initial val-plex. The only way to address software The major categories of application ues assigned to variables at the start andrelated failures in PESs is through imple- software faults are: re-start of program execution need to bementation of proper development • Calculation error free for the proper execution ofprocess, programming methods and rig- • Variable Initialization the programs and resulting outputs. Inorous testing. This article will review • Timing Synchronization case of hardware or processor redun-various types of faults that can occur in • Interface dancies, the variable values shouldapplication software development. • Change Impact transfer correctly for proper continua- • Omission/Commission tion of their succeeding runs. CountersIntroduction • Configuration Management and timers also need to be considered. Application software is one of the • Data Typical problems found in variable ini-components that contributes to the • Requirement Specification tialisation are:unavailability of a PES. Software failures • Logic • Lack of, or incorrect, initial valuesare one type of systematic failures that when programs start or restartreside inside the system as built in faults. Calculation: Calculation errors can be • Initial or present value storing andIn order to avoid software based failures due to programming the algorithm/for- transfer problems for succeedingof a system, it is important to identify mula incorrectly or computational errors. runs and hardware transfersand rectify all the software faults during Types of registers, their addressing meth-the various phases of its development. ods, and the way the processor handles Timing Synchronization: This factorMany software faults are not self-reveal- the floating-point values are different for comes into play when there is real timeing. Also, unlike hardware failure rates, different systems. Proper understanding execution of software processes andsoftware failure rates are not predictable of these points is essential. Typical prob- when different processes executed in dif-and cannot be accurately quantified. lems found in calculation faults are: ferent domains need to interact.Failure rates cannot be used effectively • Incorrect coding of constants Depending on the points of interactionto determine safety integrity levels. • Improper handling of boundary this can affect data acquisition, code There are many reasons for software- conditions execution, system functioning, and/orrelated failures. These range from poordevelopment processes, application Softwarecomplexity, interaction between mod- Software Validationules, poor personnel competence, vari- Requirement Testing Specificationability, and use of off-the-shelf software.Software Development Process The first step in avoiding software Softwarefaults is to follow a good development Architecture Software and System Integrationprocess. The process should handle the Testing Designcomplexity associated in the developmentof software. Various standards recom-mend the classic “V-model” (see Figure1), which emphasizes modular develop- Software Module Software Modulement and testing each phase. Test plans Testing Designand methods need to be established.Software Faults There are numerous methods for Figure 1: The V-Modelsoftware fault prevention and detection. of Software DevelopmentHowever, it’s necessary to know which Software Coding and Testing continued on page 5
  5. 5. Safety Division Newsletter • Summer 2005 Page 5continued from page 4 configuration management procedures Logic: Logic faults have their roots insystem outputs. Typical problems found should be adopted throughout the soft- requirements, design and/or code. Logicin timing synchronization are: ware lifecycle. Three areas that require problems do not relate to phases, but • Interacting processes going out of configuration management is required rather to the whole development process. synchronization are documentation, hardware, and soft- Competent personnel and their ability to • Inaccurate real time clock ware. Software versioning tools are now understand the requirements are key. • Non-occurrence of event due to available as part of application develop- Typical logic related problems are: timer failure ment. Configuration management also • Faults due to incomplete or incor- helps to set responsibilities and account- rect logic Interface: In order to perform its ability and should be part of software • Faults due to interaction betweenfunctions and provide useful output the development management. Typical various modulessystem software needs to interface with problems in configuration management • Improper functioning duringother system devices and software. are: abnormal conditions and statesThese can be inputs devices, outputs • Selection of incompatible hardware • Coding errorsdevices, or other systems performing and softwareother functions. The requirement speci- • Failure to upgrade other systems to Conclusion software changes This article reviewed various types offication should describe all interface • Use of incorrect master program faults that can occur in application soft-needs. All interfaces should be traceable for software revisions ware development. Adopting a goodto the requirement specification. Typical development process is of paramountproblems found in interfaces are: Data: Faults can occur due to data importance. It is important to identify • I/O interface errors types, units, range values, and acceptable probable fault categories and the neces- • Calling of incorrect functions and change magnitude/frequency. Hardware sary techniques that need to be used to sub-routine manuals should exist and should provide avoid them. The identified fault cate- • Mistakes in passing of parameters details about the limitations in data codi- gories and detection/prevention tech- fication. Programs should contain diag- niques need to be assigned to various Change Impact: Software development nostic code to handle data faults, such as phases of the development process. Oncecontains many feedback paths. Revisiting data validation techniques. For example, this is done, resources can be identifiedearlier phases and making changes are all input data can have a valid range and test cases can be prepared.common. After all, software requirements specified, and if a value goes out of range However, it is difficult to identifyare based on overall system requirements a diagnostic alarm can be triggered. one’s own fault. This also applies to theand changes in software requirements can Another way of avoiding data faults is to software development team. Therefore,also occur as the design progresses. Every use typed data tables. Typical data relat- review by different competent personstime a change is incorporated, the overall ed problems are: not belonging to the team can greatlyimpact of that change should be studied • System failure due to invalid input help in fault finding. Assessment andthoroughly. Typical problems due to data assurance can accomplish this.change impact are: • Problems in database data retrieval Every software application is unique, • Inability to properly execute logic and so are its faults and failures. Iden- and sequential function Requirements: The starting point of tification of faults requires feedback • Incompatibility of existing systems software development is the requirement from existing applications. Therefore, with changed device specifications. This is critical for the fault related data collection from differ- • Loss of existing function completeness and correctness of the final ent applications can be of great value in • Change not verified and validated product. Care should be taken to devel- understanding the types of problems in op a correct requirement specification specific application domains and devel- Omission/Commission: Anything which should deal with performance oping prevention/detection techniques.produced by human beings is subjectedto omission and/or commission errors. requirements, functional requirements and interface requirements. Semi-formal ReferencesSoftware is no exception. These errors methods such as function block dia- 1. Functional safety of electrical/elec-can result in missing required system grams, flow charts, truth tables, etc., can tronic/programmable electronic safety-functions and/or additional system func- be used in specifying various functions. related systems, IEC 61508, 2000,tions not required by system. System Verification and validation are key steps International Electrotechnicalfunctional documents, which are to ensure that the software produced Commission, Geneva, Switzerland.required as part of the development complies with the requirements. Typical 2. Wallace, Dolores R., Laura Ippolito,process, can also have omission and problems caused by requirement specifi- and Barabara Cuthill, “Referencecommission faults. Typical problems cations are: Information for the Software Verificationdue to omission and/or commission are: • Unspecified exceptional conditions and Validation Process,” NIST SP 500- • Missing (or) improper documentation and states 234, National Institute of Standards and • Missing specification requirements • Missing functions in the specification Technology, MD 20899, April 1996. • Missing functions Configuration management: Good • Unspecified testing requirements continued on page 6
  6. 6. Safety Division Newsletter • Summer 2005 Page 6continued from page 5 API Standards and Recommended PracticesAuthor Bio Palaniappan Kannan has 18 years of for Offshore Facilitiesinstrumentation, process, control andsafety system experience. He has To understand the needs of the • API RP 14G – “Recommendedworked in various phases of oil and gas upstream segment facilities for the Practices For Fire Prevention andand petrochemical projects in operation petroleum industry, it is necessary to be Control on Open Type Offshoreand maintenance, engineering, consul- familiar with the basic standards that Production Platforms”tancy, and system integration. are used. During the coming year, it is • API RP 14J – “Recommended Palaniappan has a Bachelors degree in the goal of the ISA Safety Division Practices For Design and Hazardsinstrumentation and is a Certified (Offshore Sub-Committee) to develop Analysis for Offshore ProductionFunctional Safety Expert (CFSE). CFSE is and publish papers on some of the Facilities”an accreditation by TÜV certifying com- applicable API standards and recom- As Chairman of this subcommittee, Ipetency to implement Safety Instrument mended practices that deal with safety am requesting input on these documents,Systems (SIS) in line with international issues in the design, fabrication, installa- or any other documents that would bestandards such as IEC 61508 and IEC tion, and operation of this segment of applicable. Details on any experience61511. Palaniappan has a Masters degree the petroleum industry. It is intended with combining the requirements of thesein Business Administration (MBA) and is that these papers will cover general safe- API documents and the ISA/IEC SIS stan-a certified Project Management ty issues and, to the extent possible, dards would be greatly appreciated. IfProfessional (PMP-PMI). focus on BPCS, Fire and Gas Detections you have papers, or want to develop a Palaniappan is actively involved in Systems, and SIS. Co-ordination of these paper, please contact us.professional bodies like ISA and IEEE. documents with the current ISA Also if you have any recommendationsHe has published articles and developed (ANSI/ISA-SP84.00.01) & IEC (IEC- on other activities that our subcommitteesoftware tools in the SIS area. He is a 61511) standards will also be addressed. should pursue, we would like to hearcommittee member of ISA SP84- Preliminary Listing of Documents: them.Programmable Electronic System (PES) • API RP 75 – “Development offor Use in Safety Applications and ISA Safety and Environmental Contact:SP99 – Manufacturing and Control Management Program for Outer David HaysleySystem Security standard committees. Continental Shelf Operations and Albert-Garaudy and Associates, Inc. Throughout his career Palaniappan Facilities” 3500 N. Causeway Blvd.has been involved in HAZOP studies, • API RP 14C – “Recommended Metairie, LA 70005developed SIS specifications, engineered Practice for Analysis, Design, (504) 846-6466SIS systems, performed SIL verification Installation and Testing of Basic Cell: (504) 231-5262calculations, and developed SIS func- Surface Safety Systems for dhaysley@aga-engineers.comtional testing procedures. Offshore Production Facilities” Alarm Management for Safety Alarms At ISA EXPO 2004 last year, I had similar to a HazOp study. Some support imize the possibility of a mistake whenthe opportunity to sit down and discuss a more simplistic view, a “lightweight” removing or changing alarms, considera growing concern that current trends in version of alarm management that does the mass of alarms that were added“alarm management” ignored the safety not involve the paperwork, personnel, without any formal review.ramifications of changing the alarm sys- resource overhead of a “HazOp-style” Alarm management projects aretem. The conversations centered on the alarm management project. intended to remove the smoke from oper-loss of safety related alarms due to People who support a more compre- ators’ eyes. How much of that smoke wasincomplete or arbitrary reviews prior to hensive approach to alarm management arbitrarily implemented? Perhaps if wethe removal or modification of alarm almost always focus on the process of embraced a HazOp-style process of alarmsystem settings. Emphatic points were removing alarms. Don’t doubt that a system design and of controlling changes,made in support of a safety-centric holistic review and redesign of an alarm we can prevent the need for massivereview process, or at least for the inclu- system can be a painful proposition. alarm redesign projects in the future.sion of HazOp information during the There is no magic button that canreview process. reverse what has already become a Chris Wilson Many involved in defining what alarm problem, but there is a way to prevent Marketing Managermanagement is embrace a safety oriented the problem in the future. TiPS, Inc.viewpoint and feel that it aligns well with Alarm management exists because (512) 863-3653 x 520their already established opinion that the alarms have gone out of control. Some chris@tipsweb.comprocess of alarm management should be level of due diligence is required to min-
  7. 7. Safety Division Newsletter • Summer 2005 Page 7 Book Reviews FMEDA data and many product specific and control manager. The shift of control entries based on specific FMEDA data systems from proprietary to commercial- from TÜV, FM, exida and others. off-the-shelf hardware and software and The handbook can be purchased network connectivity have created new through the following three sales vulnerabilities in industrial networks. But channels: cybersecurity alone is not enough. A • online store complete security program also includes • ISA online store, personnel security, and physical security. • Cybersecurity consists of protecting the availability, integrity, and confiden- tiality of the systems and data. ThisSafety Equipment Reliability requires understanding the threats to the systems and the vulnerabilities of theHandbook systems. Threats like the Slammer wormPublished by and buffer overflows are explained.ISBN: 0-9727234-0-4 Some of the highlights of this book are the examples of real attacks on control Are you performing Safety Instrumented systems and the consequences.Function verification calculations? Countermeasures can be designed toRegardless of what method you are using protect against the threats. Usually a– Simplified Equations, Reliability Block system for identification, authentication,Diagrams, Fault Tree Analysis, Markov and authorization is one of the mostModeling, or a commercially available important layers of defense.tool – you need failure rate and failure The remainder of the book covers themode data. The exida Safety Equipment Industrial Network Security steps, at a very general level, to executeReliability Handbook contains the infor- By David Teumim an industrial network security program.mation you are looking for. Published by ISA The first step is planning and design for The exida Safety Equipment ISBN: 1-55617-874-3 security, such as separation of networks.Reliability Handbook was officially An understanding of the technology, likereleased in March 2003. The handbook The ABCs of Network Security encryption and firewalls is important.was created to solve one of the major Reviewed by Nick Sands To make an effective security systemproblems when implementing Safety One of the hottest topics in the con- requires writing clear policies for theInstrumented Function verification cal- trol industry is security for process con- application of technology, trained andculations, i.e. getting failure rate and trol systems and networks. Finally ISA aware people, and periodic audits andfailure mode data. The handbook was has a book on the subject: Industrial other methods to provide assurance ofcreated to supply that information in a Network Security by David Teumim. the effectiveness of the security pro-format specific to safety integrity verifi- Teumim is a certified information system gram. Some example approaches tocation and to allow for easy comparison security professional (CISSP) and a industrial network security programsbetween equipment items or designs on workgroup leader for SP99, the commit- from Dupont and Proctor & Gamblefailure rates, failure mode distributions, tee working on manufacturing and con- form the last chapter.and diagnostic detection capability. trol system security. The book is very Every company in the control commu-(This is the primary difference between basic – an introduction to an introduc- nity will have people that can benefitthe exida handbook and other more tion on the subject. But with such a new from reading this book, people that needgeneric reliability data sources, such as area, this elementary book is a good a basic understanding of informationOREDA – Offshore Reliability Data, beginning to the body of knowledge. security for manufacturing and controlAIChE, IEEE, and others.) The first chapters are an introduction systems. Teumim just introduces the sub- It contains data on a wide variety of and background, answering many ques- ject though, with little detailed informa-safety-related equipment, such as pres- tions. What is an industrial network? tion. Future books or revisions of thissure transmitters, temperature transmit- Why should it be secure? Can it be book will have more lasting value as ref-ters, safety PLCs, input and output secure and open? Who should work on erences. So, even though this book is ainterface modules, valve controllers, security? How is the cost justified? must read, it is not a must buy at $54valves, and many more. It contains Teumim contrasts IT security issues, (ISA Member price). It is a great book togeneric failure rate data based on indus- managed corporately by a CIO and a borrow.try database compilations and field fail- cybersecurity manager, with security for It is available online at:ure data, generic failure mode informa- manufacturing control systems, managed • ISA online store, derived from field failure data and by a plant personnel like the automation •