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Troubleshooting Web Based Control Systems

Troubleshooting Web Based Control Systems . Presenter: Ron Auvil. Session Outline. Presentation Outline: Introductions and Technological Advances Networking And Collaboration Network Overview Network Software Servers Wireless Networking Diagnostic and Troubleshooting Tools

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Troubleshooting Web Based Control Systems

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  1. Troubleshooting Web Based Control Systems Presenter: Ron Auvil

  2. Session Outline Presentation Outline: • Introductions and Technological Advances • Networking And Collaboration • Network Overview • Network Software • Servers • Wireless Networking • Diagnostic and Troubleshooting Tools • Troubleshooting Scenarios (2)

  3. Introductions • Graduate of West Side Institute of Technology in Cleveland Ohio • In HVAC Industry over 37 years • Licensed 3rd Class Stationary Engineer • 33 Years Part and Full Time Training Experience, including 16 yrs on Faculty of Community College • Author, ‘HVAC Control Systems’, ‘HVAC and Refrigeration Systems’, ‘IT for HVAC Technicians’ American Technical Publishers. • Owner, High Performance Mechanical Training • Technical Contributor Fluke Corporation. • Currently Senior Technician/Trainer with Johnson Controls, Charlotte, NC • 17 Years with JCI as Lead Instructor HVAC and Controls

  4. Technological Advances • Mechanical and control systems are becoming increasingly more sophisticated. • As a matter of fact, the rate of change technologically is increasing. • Mechanical systems changes include refrigerants, motor designs, variable speed drives, magnetic bearings, etc. • Control systems changes include advanced PC/server applications, impact of web and web enabled devices. • Combined with lack of training the result is………… • Products introduced with no one able to install or service them? i.e. 750 page server software installation instructions? • Service both NEW and OLD challenges

  5. Networking And Collaboration • Today, Most Commercial HVAC Control Systems are put on a customer computer network. • What is a Network? A network is a system of nodes and other devices that are joined using connecting media that provides the means of data communication between the nodes. (ITH P#1) • Facility IT and HVAC Technician Collaboration. (ITH P#4) • Understanding the facility IT Staff Role and the HVAC Technician Role. • Knowledge of terminology, use of tools and troubleshooting are paramount.

  6. Teaching Advanced Technology in our Classrooms • So, how does this impact our classrooms and what can we do about it? • Programs, technology, equipment quickly go out of date. • Instructors easily caught behind an increasingly steep technological curve. • Introduction of basic Information Technology (IT) training into HVAC programs, especially Controls training classes. • Equipment and computer updates, 3 year cycles at most. • Materials, books, training aids, etc. up to date • Big Task!

  7. Network Overview • Network Types: LAN/WAN (ITH P#5) • Network Topologies; Star, Bus, Daisy Chain, etc. • Data Packets, Bandwidth and Throughput. • MAC Addressing; NIC Cards • Media/Cable UTP; Cat 5, 5e, 6. (ITH P#11) • Switches, Routers. • IP Addressing: (ITH P#4)

  8. Network Overview • Switches, Routers. • IP Addressing: (ITH P#18)

  9. Network Overview • Web Based Supervisory Controllers (ITH P#21)

  10. Network Overview

  11. Network Software • Client Computers • Operating System: (ITH P#27)

  12. Network Software • Other Software: • Java, Windows Dependencies, Browsers; System Security, Firewalls • Software Troubleshooting Skills

  13. Servers • Server Functions and Sizes (ITH P#36) • Functions: Passwords, Controller Tools, Long Term Data Storage, Email, Alarms, Printer, Smartphone/Tablet interface, SQL. • Sizes: Small/Large/Virtual

  14. Servers • Software: OS (ITH P #40) • Windows Server OS • SQL • Server Setup and Troubleshooting

  15. Wireless Networking • Wireless Router Infrastructure • Wireless Residential Thermostats • Wireless Passwords/Security:

  16. Wireless Networking • Correct Wireless Network (ITH P#52)

  17. Diagnostic and Troubleshooting Tools • Hardware; LED’s on Web Controllers and Devices (ITH P#56)

  18. Diagnostic and Troubleshooting Tools • Hardware; DMM and Handheld Meters

  19. Network Diagnostic and Troubleshooting Tools • Software: Command Prompt ‘Ping Command’ • Other: Tracert, Ipconfig, Netstat, 3rd Party and vendor Tools (ITH P#60)

  20. Troubleshooting Scenario #1 • Wrong IP Address (ITH P#69) • No Customer Access • Ping Unsuccessful • Technician Uses Laptop, Cables, and Switch • Changes Wrong IP address at Web Controller or Customer Computer.

  21. Troubleshooting Scenario #2 • No communications between web based controller and server. • Check server IP Address at Web-Based Controller. • Login and Look for ‘Network’ or ‘Focus’ Tab.

  22. That’s It! • Any Questions? • Contact Information: Ron Auvil • Email: ron.auvil@gmail.com • Cell: (803) 367.3033

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