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  Related Information

Professional Certification FAQs are also available to download in PDF format (68k)

Device Certification - LonMark conformance instructions.

Design Guidelines - Technical information for developing open interoperable LonMark products.

Technical Corner - Provides answers to commonly asked technical questions.

LonMark Members who manufacture products used in Open Systems

LonMark® Certified Professional Program
Frequently Asked Questions (FAQs)

These Frequently Asked Questions (FAQs) relate to the LonMark Certified Professional Program.  For general questions related to LonMark, please read the general FAQs.

If you have a general question related to LonMark that is not addressed in this Frequently Asked Questions (FAQs) section, send your question to testing@lonmark.org.

What is the LonMark Certified Professional Program?

This program has been created to establish a core competency and proficiency standard for industry professionals.  It was developed in response to the industry requests for more highly qualified individuals and a need for a method to establish valid credentials. 

Why is LonMark offering this program?

LonMark International (LMI) has been involved in product standards creation and certification since its inception in 1994.  This program is a natural extension of requests coming from many industry supporters for a set of standards for personnel involved in the LonWorks® controls-networking industry.  There are many companies claiming to be experts in LonWorks® systems but until this program, there was no practical way of establishing proficiency.  This certification program helps to create a competent, qualified team of professionals worldwide with the same standards of excellence. 

Who should take the test and become certified?

Any industry professional involved in the design, specification, integration, or installation of LonWorks® control networks (the ISO/IEC 14908-series of standards). 

Where can I take the test?

The test is offered online, anywhere at anytime. All you need is a computer, a web browser, an internet connection and two hours of uninterrupted time.

What study materials are available?

The LonWorks® Installation Handbook is the primary study book recommended for the LonMark Certified Professional Exam.  It is currently available in English, Japanese, and German.  It can be purchased in English from this link: https://secure.mybookorders.com/Orderpage/255   Contact LonMark International for German, Spanish, and Japanese versions of the handbook. Additional study materials are available on the LonMark International web site.  See the Resources link for recommended material.

What is the cost for taking the test?

The cost is USD 375 per person. 

How do I register for the test?

Test candidates can send an email to testing@lonmark.org requesting registration to the training and testing platform. You will receive an email with your login ID and Password to the platform. There you can register and pay for the training and the test using PayPal. The testing site is located here: https://test.lonmark.org/

What is the test format?

The test is given online consisting of 120 questions.  Each question is given along with four possible correct answers.  One of the answers is MOST correct; the other three are incorrect.  The examinee must select the correct answer. You must get 80 questions correct to pass the test. The exam must be completed within 2 hours.

What are my options if I fail the test the first time?

An examinee may take the exam a maximum of 3 .

The fee for re-taking the test is USD $250. Please note that you must contact LonMark prior to registering in order to obtain the re-take registration link.

What are the requirements and procedures?

You must have a computer with a current web browser and a stable internet connection. Once you are registered you will be sent a link with a unique user ID and password by email to access the testing platform..

How can I prepare for the Certified Professional Exam?

LonMark offers several ways to prepare for the exam. You can take the online refresher training course or arrange for an on-site training course with testing. On-site training and testing requires a minimum of six students. Another valuable tool for exam preparation is the LonWorks® Installation Handbook. In addition, review the resources page.

My organization currently offers training on LonWorks.  Can I become a training and testing partner and offer the test as part of my curriculum?

Yes.  Any organization that is teaching LonWorks fundamentals can apply to become a training and testing partner and are encouraged to do so. Please contact LonMark for more information.

Are the tests offered in multiple languages?

Yes.  The online site can support many languages. Currently the test is available in English, German, and Spanish. Other languages, including Japanese, French, are in development. Contact LMI for more details. 

What are the differences between the different certifications being offered?

The first level test is for a LonMark Certified Professional.  This is the designation that applies to individuals taking the professional test.  It provides a person with the credentials associated with comprehensive LonWorks knowledge.  This applies to network integrators such as HVAC, lighting, security, building-automation and -controls engineers, consulting engineers, specifiers, and facility managers.

The LonMark Certified Professional exam is the first to be offered.  It is a comprehensive exam covering 12 distinct subject areas or “domains”:

  1. LonWorks history and terminology basics
  2. Transport media
  3. Nodes
  4. Communication
  5. Physical network structuring
  6. Logical network structuring
  7. Installation
  8. Network configuration
  9. Tools for network management
  10. LonWorks and IP
  11. Troubleshooting
  12. User interfaces

The LonMark Certified Installer is the second individual/person exam planned.  This designation will be used for an installer or technician level certification.  It will provide a person with the credentials associated with basic installation of a LonWorks network including basic terminology, wiring requirements, termination, router installation, network topology, and simple network diagnostics.  It does not include the need for knowledge of system architecture, network design, system engineering, commissioning, advanced system diagnostics, or HMI integration.  This would apply to technicians, electricians, and facility operations personnel.  This credential is not yet available.  We encourage interested parties to consider the LonMark Certified Professional exam at this time.

LonMark Certified Systems Integrator – this designation is for companies (not individuals/persons) that have on-staff a required minimum number of LonMark Certified Professionals and have completed real-world installations.  Full details can be obtained here: www.lonmark.org/csi

Will there be practice exams available online?

At this time there is no practice exam.

How will I be notified if I have passed/failed the exam?

At the completion of the test you will be immediately notified of your score. No waiting! A passing score is 80 questions correct out of 120.

When I pass the exam, what credentials will be issued?

Each passing examinee will receive a certificate via email which you can print and is suitable for framing along with a letter designating your credential. Please allow approximately one week for processing.

Is there a registry of LonMark Certified Professionals?

Yes. LonMark publishes all certified professionals. New LCPs will be posted within 14 busienss days (typically). It is your responsibility to ensure the information is correct and up to date. Please contact LonMark for any changes to your listing.

How long do my qualifications last?

LonMark Certified Professional qualifications are valid for life. No recertification is required.

How is LonMark publicizing this certification program?

LMI is presenting this program to the various trade publications, industry associations, and through advertising.  The LCP requirement is also included in specification standards for professional qualifications. The end user and consulting community are encouraged to include the LCP credential in specifications calling for only trained and certified LonMark professionals to design and install their projects. 

How were the test questions created?

Volunteer experts from around the world were invited to participate in the exam creation.  A core group of highly qualified industry experts have worked to ensure that all material is accurate and up to date.  No one individual outside of LonMark staff has seen or reviewed all of the questions.  The questions were created based upon industry available material posted on the LonMark web site, links to other material, and published in the LonWorks Installation Handbook.

Who should I contact to volunteer to do revisions?

“I was not invited to participate in the initial expert panel, but I would like to volunteer for the ongoing certification support.” 

We are continually updating the exams with the latest industry advancements.  Volunteers are needed on an ongoing basis.  If you feel you are qualified and would like to support this effort, please contact LMI directly.  We welcome your participation.

I’m a consulting engineer responsible for writing open systems control specifications.  How will this program help me to ensure the systems that are installed will meet my specifications?

This program along with the LonMark product guidelines together from the standards of quality in the industry.  Open LonWorks® control systems can be arbitrarily simple or complex depending upon the applications and system requirements.  Specifying LonMark Certified products and LonMark Certified personnel to design and install them will ensure you get the best possible system and the most highly qualified people working on the project.  Consulting engineers are also highly encouraged to get trained and certified in the program to ensure you are up to date on the latest “best practices” available.  It is LMI’s commitment to continuously improve the standards and provide up-to-date knowledge and education programs for the industry.  If you would like to learn more about these programs, please contact us. 

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The number of applications for LonMark certification is growing rapidly. To make sure your products are on-track for certification, design conformance into them by following the LonMark Interoperability Guidelines v3.4.

see Device Certification

The Proficiency Testing Program for Qualified Open Systems Installers, Professionals and Integrators provides a worldwide standard of proficiency for individuals that install, integrate and maintain systems utilizing LonMark certified products.

see Professional Certification