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EDDL the key to interoperability
DEVICE ISA104
INTEGRATION
Standards Certification Education & Training Publishing Conferences & Exhibits
Content
· Issue: Interoperability of Devices with Host applications
Problem : How does the Host understand device capabilities and interpret digital information? Solution: Use a Descriptive Technology => EDDL
C. Verney 07/09/2009
What is EDDL?
· EDDL is an Electronic Device Description Language
It allows a host system to both configure as well as monitor devices online Consists of two parts
A file (EDD) that describes the device and the information that it contains A host application that reads the EDD file to learn how to retrieve and interpret digital information from the device
· EDDL is an international standard
Endorsed by IEC (IEC 61804)
· EDDL is endorsed by the three major digital busses
Fieldbus Foundation HART Communication Foundation Profibus Nutzerorganisation e.V (PNO)
C. Verney 07/09/2009
EDDL a generic language of description
·
EDDL is capable of describing
device parameters and their dependencies; device functions, for example, simulation mode, calibration; graphical representations, for example, menus ; interactions with control devices ; graphical representations ; persistent data store.
· EDDL allows a host system to both configure as well as monitor devices on-line
EDDL is to be used to create Electronic Device Description (EDD).
C. Verney 07/09/2009
What is EDD?
· An EDD is the computer readable file written in Electronic Device Description Language (EDDL) that describes the data in a field device
It is in a compressed binary format It is not executable code
· And EDD is the file that the Host application reads in order to learn how to retrieve information from the field device · An EDD is used with appropriate tools to generate interpretative code to support:
Parameter handling, operation, and monitoring of automation system components.
C. Verney 07/09/2009
EDD a device description file
· A device description is a clear and unambiguous structured text description that precisely describes field device data to host systems. · An EDD contains the following information about the parameters of a device:
Attributes like coding, name, engineering unit, write protection, how to display etc. The arrangement of the parameters in a menu structure, names of menus and submenus. Information about the relation of parameters to others. Information about help texts and help procedures. Information about necessary operating interactions (e.g. calibration), also called methods. Information about visualization tools (i.e.: charts and graphs)
C. Verney 07/09/2009
EDDL benefits
· EDDL/ EDDs are independent from, Operating systems and versions, DCS platforms, why?
EDDs are text based files There is no executable code in an EDD EDDs are managed by an interpreter, all communication setups are done by the DCS or the tool EDD
EDD
Vista Win XP WIN NT Unix Linux Win CE
C. Verney 07/09/2009
Simple Text File Same For All Hosts
Thanks
for your attention
C. Verney 07/09/2009
DEVICE ISA104
INTEGRATION
Standards Certification Education & Training Publishing Conferences & Exhibits
Content
· Issue: Interoperability of Devices with Host applications
Problem : How does the Host understand device capabilities and interpret digital information? Solution: Use a Descriptive Technology => EDDL
C. Verney 07/09/2009
What is EDDL?
· EDDL is an Electronic Device Description Language
It allows a host system to both configure as well as monitor devices online Consists of two parts
A file (EDD) that describes the device and the information that it contains A host application that reads the EDD file to learn how to retrieve and interpret digital information from the device
· EDDL is an international standard
Endorsed by IEC (IEC 61804)
· EDDL is endorsed by the three major digital busses
Fieldbus Foundation HART Communication Foundation Profibus Nutzerorganisation e.V (PNO)
C. Verney 07/09/2009
EDDL a generic language of description
·
EDDL is capable of describing
device parameters and their dependencies; device functions, for example, simulation mode, calibration; graphical representations, for example, menus ; interactions with control devices ; graphical representations ; persistent data store.
· EDDL allows a host system to both configure as well as monitor devices on-line
EDDL is to be used to create Electronic Device Description (EDD).
C. Verney 07/09/2009
What is EDD?
· An EDD is the computer readable file written in Electronic Device Description Language (EDDL) that describes the data in a field device
It is in a compressed binary format It is not executable code
· And EDD is the file that the Host application reads in order to learn how to retrieve information from the field device · An EDD is used with appropriate tools to generate interpretative code to support:
Parameter handling, operation, and monitoring of automation system components.
C. Verney 07/09/2009
EDD a device description file
· A device description is a clear and unambiguous structured text description that precisely describes field device data to host systems. · An EDD contains the following information about the parameters of a device:
Attributes like coding, name, engineering unit, write protection, how to display etc. The arrangement of the parameters in a menu structure, names of menus and submenus. Information about the relation of parameters to others. Information about help texts and help procedures. Information about necessary operating interactions (e.g. calibration), also called methods. Information about visualization tools (i.e.: charts and graphs)
C. Verney 07/09/2009
EDDL benefits
· EDDL/ EDDs are independent from, Operating systems and versions, DCS platforms, why?
EDDs are text based files There is no executable code in an EDD EDDs are managed by an interpreter, all communication setups are done by the DCS or the tool EDD
EDD
Vista Win XP WIN NT Unix Linux Win CE
C. Verney 07/09/2009
Simple Text File Same For All Hosts
Thanks
for your attention
C. Verney 07/09/2009