1. Ron Helson HART Communication Foundation Austin, TX
The Power of HART Using HART Communication to Improve Process Operation and Better Manage Plant Assets
Ron Helson HART Communication Foundation Austin, TX 

2. Things You May Know About HART
Most smart instruments use HART Communication
HART smart field devices are used interchangeably with traditional mA analog only units
Hand Held Communicators are often used to perform device set-up, calibration, commissioning and periodic maintenance functions
PC-based instrument management tools can remotely communicate with HART devices to manage calibration and other instrument parameters from central locations (instrument shop or control room)
HART = Savings in Installation & Maintenance

3. Things You May Not Know About HART
All HART smart devices provide process data for plant operation continuously - 24/7
HART provides access to all device data while the 4-20mA analog signal is being used for control
Information about the status (health) of the field device and quality of the mA signal is part of every message
The Primary Variable is transmitted as a 4-20mA signal and also as digital value
Many devices have process information (measured or calculated) in addition to the Primary Variable
This Data is VALUABLE $$$

4. HART Basics Digital FSK allows additional information
to be carried on the same pair of wires
with the 4-20 mA Analog Signal
Simultaneously and Transparently

5. The HART FSK Signal The Familiarity of 4-20 mA…
with the Benefits of Digital Communication

6. All Data is easily available to Plant Systems!
Valuable Data
35-40 data items are Standard in every HART device
Device Information
Basic Calibration Information
Process Variables
Diagnostic Status Alerts
Use this Data to Improve Process Operations and Better Manage Plant Assets
All Data is easily available to Plant Systems!

7. Digital Process Variables
Many HART devices support more than one process measurement or calculated value
HART provides access to All Process Variables in the device
All Digital Process Variable data includes:
IEEE Floating Point Value
Standard Engineering Units Code
Data Quality Status
Primary Variable transmitted on the mA current loop continuously

8. Status & Diagnostic Alerts
All HART smart field devices continuously self-assess and monitor their performance
Diagnostic status information is returned with every message
Status Alerts include quality of 4-20mA signal and process variable data
Continuous communication increases integrity of control system information
Get early warning of device problems
Automatically track and detect changes in Range or Engineering Units
Validate PV and Loop Current values at control system with data from the source field device

9. Unleash the POWER of HART
Example Applications
Is the pH electrode cracked or coated?
Has the temperature sensor failed?
Is the measurement accurate?
Is the measurement within range?
Are the impulse lines clogged?
Has the pressure sensor been over-ranged?
Has the device been left in “loop test” position?
Is the air pressure adequate to operate the valve?
Is the control valve operating smoothly over the full range?
Has the device failed or locked-up?
Will the Emergency Shut Down valve operate if required?
Unleash the POWER of HART

10. Use HART Full-time to Unleash the POWER
100%
100%
Value Gap $$$
Commissioning
Troubleshooting
Documentation
Database Validation
Automated Records
Diagnostic Alerts for proactive action
PV Good / Bad status for improved safety / reliability
Validate accuracy of control system information
Full access to multi-variable instrument information
Integrate data with ERP/CMMS Systems
Savings / Benefits
RELATIVE VALUE
Savings / Benefits
Partial Value 0%
100%
100% 0%
Part-Time Communication
FULL-TIME Communication
Integrated with Plant Systems

11. Getting HART in Plant Systems
Cost-effective interfaces support integration with plant systems
Many control systems offer direct HART interface and support use of HART data through-out
Third party products support use with non-HART capable systems
Multiplexers - Some integral with FTA
Gateways - HART to Ethernet, HART to Modbus, HART to Profibus, more...
Single Device Interfaces - Transform digital process variables and status alerts into 4-20mA signals and/or contact closures
HMI
Engineering
Maintenance
HAR T
D A T A
HART
DA T A
Controller
I/O

12. Solutions for HART Integration

13. Using HART in Plant Systems
Continuously Monitor Device Status & Diagnostics
Device Malfunction
Loop Current Fixed
Device Needs Maintenance
Validate Integrity of Control System Information
Read Loop Current, PV and Range values from device
Verify accuracy of system data
Ensure scaling factors in system match field device - 20mA & 4mA points
Get Full Value from Multi-Variable devices
Access Secondary Process Variables for operator display, trending, or control
Use additional process measurements and calculated values to improve plant operation and manage assets

14. Monitoring HART Smart Valves
Actual stem position
Identify sticking or stuck condition, % trim wear, poor response
Actuator Pressure
Low pressure from clogged filter, leaking connections or torn diaphragm
Temperature
Inside Positioner
Set Point
Target Stem Position
Fugitive Emission Potential
Positioner malfunction
Partial Stroking for ESD Valve testing
Specialized Diagnostic Software Packages

15. Single Device HART Interface Solution
SPA uses HART communication to get process variable and diagnostic data from device and converts information into 4-20mA signals and/or contact closures
4-20mA Proportional to PV
HART
Field
Device
HART Instrument Fault Alarm
Second Variable (SV) High/Low Alarm
Third Variable (TV) High/Low Alarm
Fourth Variable (FV) High/Low Alarm
4-20mA Proportional to SV, TV, or FV
One Wire from Field to Control Room
Multiple Analog Signals and Alarm Contacts to the Control System

16. Getting HART on Plant Networks
OPC Server provides easy access to HART device data anywhere on plant network
Allows several applications to access data in a HART device at the same time
Enables popular HMI and Trending packages to access data in HART devices
Connect to one or thousands of devices using common HART I/O systems & interfaces
Get HART Data on Your Desktop
HART SERVER TOOL

17. Other Things You Should Know
HART is Safe, Secure, and Available
Tested and Accepted global standard
Supported by all major instrumentation manufacturers
Saves Time and Money
Install and commission devices in fraction of the time
Enhanced communications and diagnostics reduce maintenance
Low or no additional cost by many suppliers
Improves Plant Operation and Product Quality
Additional process variables and performance indicators
Continuous device status for early detection of warnings
Digital capability ensures easy integration with plant networks
Protects Your Asset Investments
Compatible with existing instrumentation systems and people
Allows benefits to be achieved incrementally
No need to replace entire system
HART = High VALUE + LOW RISK

18. What to Do? Find Out More! Identify your HART devices
Provide HART capability training for your staff
Talk with your suppliers about access to your HART data and providing you with tools to better use the capability of your HART devices
Use your assets to their fullest… You probably are using only a small part of HARTability
Find Out More!

19. Support for HART Technology
HART
COMMUNICATION FOUNDATION
Provides Worldwide Support for Application of the HART Communication Technology
Technology Owner and Standards Setting Body for the HART Protocol
Independent Non-Profit Organization
Funded by Membership and Training/Support service fees
Any Company interested in Use of the HART Protocol should be a member

20. Foundation Services
Manage and control the HART Protocol Specifications
Enhance the HART technology as necessary to support industry needs for Smart Instrumentation
Provide Training Workshops, Newsletters, Web Site and other Services to Educate Industry on use of the HART Protocol
Manage Library and distribution of Registered Device Descriptions for HART devices

21. The Bottom Line...
Most Users and Suppliers do not use the full value of HART
The HCF is here to help you
Get More from HART Communication!

22. Thank You for Your Attention!
Questions & Answers
Ron Helson
HART Communication Foundation
9390 Research Blvd., Suite I-350
Austin, Texas USA
Tel:
Fax:
Thank You for Your Attention! 