1. HART + DDL
Core HART Technology Supporting Universal Access to ALL Capabilities of ALL HART Field Devices

2. Rosemount 1151S At HART Foundation >12 Years
In Foundation Office When I Joined !
Device Revision 5
(Not the newest revision of 1151S)
Its EDD was Written 1993 /*
* 1151SII Rev 5 HART Device Description *
* HART Communicator Toolkit rev G
* Garrie Huisenga 6/3/93
* Updated 10/14 by Chip Rauth to add 2nd precision tables,
* changed g formats to e formats
* DD rev 2 to use RMTPRES5 and more like 3051C */
Rosemount Still Ships 1151s
Millions in Plants* (* according to Rosemount Website)
Customers Require Support

3. DD-IDE and SDC-625 The HART Standard
The 1151S' EDD Today
Exactly Same EDD
Still Works
Devices in Plants Still Supported
13 Year Old DD
Where are the people who wrote this EDD?
On old devices, who updates the EDD so it works today?
DD-IDE and SDC-625 The HART Standard
Does your computer run MS-Windows 3.11?

4. EDDL = Longevity EDDs keep On Working ! A Plant is built to Last
HART Devices in for Long Haul
Customers expect support
EDD's Last, too!
Computers Change
Companies Merge, Reorganize
Staff Migrates, Change Jobs
HCF Committed to EDDL
Protect Industry Investment
Provide High-Productivity EDD Development and Test Tools
Open access to EDD technology
Simatic PDM
EDDs keep On Working !

5. DDL Started with HART Brief DDL History HART Communicator HC-275
1990 "International Fieldbus Group" Notion of DDL
DDL and HC-275 presented at HUG
1994 HCF DD Library established for registration and distribution
1994 First HCF DD Workshop
1995 Large HC-275 shipments begin
1996 FF Adopts DDL
2001 DDL IDE project initiated
Enhance DD Developer Productivity
Access to DDL Technology by all HART members
2003 EDDL Cooperation Group Starts
2004 EDDL Approved by IEC
2004 DD-IDE & SDC-625 Released
2004 Honeywell FDCM & handheld released
First SDC-625 based host.
2005 HCF SDC-625 Supports 100% of EDDL Enhancements
2005 New HART DDL Specifications Approved
2006 EDDL with Enhancements Approved by IEC
HART Communicator HC-275
* Actually HCSIM HC-275 Simulator

6. Elements of an EDD Data Modeling Communications HMI Data Model Methods
Fundamental EDDL Capability
Models Field Device Real-Time Database Smart Field Device like RTU in SCADA
Other EDD Declarations Refer to Data Model
Communications
Defines all communications capabilities
EDD Application Chooses What and When to Communicate
HMI
Allows a User to Browse Field Device
EDD Developer Determines Organization and Content
Host Application Determine Look and Feel
Methods
Models Standard Operating Procedures (SOPs)
Ensures User Performs Procedure Consistently
HMI
Methods
Data Model
Communications

7. Field Communicator 375-FC
EDDL Technology
No Other Programming Language Like EDDL
An EDD is a Text-Based Model of the Field Device
Developers Describes What Capabilities are in their Field Device
NOT How the Application should use the Field Device
Supports Simple to Complex
Host Application Interprets the EDD
Developer focuses on the EDD Application
Provides a secure "window" to browse the Field Device
EDD describes the Application's view of Field Device using MENU
Field Communicator 375-FC
EDDL is the right dividing line between Field Device and EDD Application developers

8. EDD's are Portable Operating Systems Processors Protocols
Unix (Solaris)
Windows NT, 2000, XP (SDC-625, PDM, AMS, FDM, etc.)
Embedded (HC-275, 375-FC)
Processors
ARM
Wintel
Motorola 68302
Protocols
HART
PROFIBUS
FOUNDATION FIELDBUS
Others

9. HART EDDL Today
HCF DD Library
>60MBytes of Encoded EDDs
1079 DDs, 438 devices, 100 manufacturers
3.6 Million Lines of Code
Adding 150 EDD's per Year
Stable and field-proven for long life
Continuing Investment in EDDL Technology
Enhancements to EDD Language
Tools for EDD Developers, Host Applications
Continuous Quality Improvement
Industry Education
Simplifying Access to HART EDD Library
EDDL is the Only Technology Endorsed by the HCF for the Configuration of HART Devices
EDDL is the Only Technology Endorsed by the HCF for the Configuration of HART Devices

10. DDL is the HART Standard
One Encoded EDD works on all Hosts
The real promise of EDDL
Real EDD portability
Lower host and field device development costs
Provide end user access to DD's
Critical DD Development Tools controlled by HCF
DD-IDE Tool Suite and SDC625 reference Host
Managed and maintained as HCF standards
SDC625 (HCF Interpreter) licensed by HCF members for inclusion in commercial products
Ensures correct interpretation of DDs and full benefit of testing, validation and registration process DD
Write it Once Test It Once Use It Anywhere
Handheld
PC-based Configurator
Instrument Management

11. EDDL Quality Assurance
HART DD Library Registration Key to EDD QA
All EDDs must registered and verified with reference Host (source files archived, symbols controlled)
Well defined process for Registering EDDs
Detailed, Repeatable process to ensure Consistency, Quality
Process updated as loop-holes identified
All EDDs distributed as single encoded file to ensure security and integrity – this file must work on all EDD compliant Hosts
Evolving, improving since 1994

12. Backward Compatibility
A Core HART Value
HART Specifications detail how a revision is made to a field device
You can replace an old device with a new one without changing the host application.
New Revisions work in place of old revisions.
You can Add to a device (Commands, Data)
You can't change what's already in the device
Backward Compatibility in EDDs:
Compliance detected by auditing symbols
Symbol = Name of Data, Command, Menu, etc
Symbol changes, additions, deletions detects
No Changes to EDDL that break an Existing EDD.
All Hosts must support registered EDDs

13. Continuous Quality Improvement
Big Need to start testing host applications
EDDL Interoperability Guidelines
Basic host interoperability
Documents Enhancements
EDDL Common Test Requirements
Identify test requirements common to all Protocols
Focus on Host Requirements First
HART EDDL Working Group
Addressing HART-Specific Requirements
Beginning work on actual test program
HART Interoperability Workshops
Held twice a year
Sharing between host and EDD developers
Everyone in one room.

14. The EDDL Enhancements – The Evolution Continues
Growing acceptance of DDL and increasing complexity of devices created the need for improved user display
Enhanced DDL extends capabilities to support graphical Windows display of device information
+ Graphic objects, charts, trends
+ Storage of device data in Hosts
+ Increased computation for managing complex devices
International Standard - IEC 61804, EDDL
EDDL Cooperation Team (ECT) established by HART, PNO, FF and OPC to further the technology and maintain IEC Standard

15. First Enhanced DD Registered at HCF
Enhanced DDL marks a significant change
Applications can now maximize the full capability of intelligent field devices
Reduces the need for custom device configuration and diagnostic software
Configuration and monitoring is now easier and faster
Reduces errors and downtime
An International Standard - IEC 61804, EDDL
Built on experience, designed by experts
EDDL Technology – Safe, Secure and Robust

16. One Encoded EDD for ALL Host Applications
Siemens Simatic PDM
HCF Reference Host
SDC-625
Emerson
AMS Device Manager