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How to create Tags in DeltaV (Exploring DeltaV)?

Hey 

I am a student in my final year and am using DeltaV in my project 

I want to know how to create tags in the DeltaV system?

i am trying to create tags and use them later in the DeltaV Operate Configure HMI

I want to use these tags to store data that i am reading from OPC DataHub through Tunnel/mirror.

I know how to create tags for I/O but what i want to know is that , is it possible to create internal tags in DeltaV that are not associate with I/O?

Thanks

zahraa
  • AdrianOffield
    If you know how to use the IO tags once you have created them, i.e. in the control module, then you already know how to create tags.

    Any parameter within a module is addressable in the HMI, in other words, these parameters are the tags.  Create a new module, add a parameter to it, assign it to a cont/workstation and download.  You can then point the HMI to that parameter (tag).  DVSYS.YOURMODULE/PARAMETER.F_CV (if float).

    does that make sense?

    Sent from Windows Mail

    From: zahraa
    Sent: ‎Monday‎, ‎June‎ ‎2‎, ‎2014 ‎8‎:‎13‎ ‎PM
    To: DeltaV@community.emerson.com

    Hey 

    I am a student in my final year and am using DeltaV in my project 

    I want to know how to create tags in the DeltaV system?

    i am trying to create tags and use them later in the DeltaV Operate Configure HMI

    I want to use these tags to store data that i am reading from OPC DataHub through Tunnel/mirror.

    I know how to create tags for I/O but what i want to know is that , is it possible to create internal tags in DeltaV that are not associate with I/O?

    Thanks

  • zahraa

    In reply to AdrianOffield:

    Hey

    Thanks for clarifying, this definitely helps

    So the parameters are basically the tags, nice !

    I was able to use parameters that are within the module and display themt in DeltaV operate HMI. Those parameters are actually readings from Field Devices.

    My problem now is that , i want to use parameters to store data from OPC dataHub by bridging( I have Data which are readings from a flow meter device that i can access and read from DataHub). I want o know if there is a specific parameter that i need to select to store this data in and then later use them DeltaV operate HMI? like is when open Control studio , what parameter do i need to choose? and do i have to use FBD for the parameter?

    I tried a random parameter (AI) and bridged the flow meter reading to the PV.CV , but i was not able to read that from HMI

    Thanks for your help

  • Ben Bishop
    As Adrian mentioned, once you create the parameter in the module you can use it in the HMI.  The custom parameters you seek are in the "Special Items" group of the Control Studio palette.  Parameters can be internal (referenced or "wired" only inside the module) or external (provides "wiring points" to connect to other function blocks or modules in more complex logic).  Commonly your OPC points would read/write to a "landing module" containing those special item parameters.

    Sent from my mobile device.  Please excuse brevity and typos.

    On Jun 2, 2014, at 12:36, "AdrianOffield" <bounce-AdrianOffield@community.emerson.com> wrote:

    If you know how to use the IO tags once you have created them, i.e. in the control module, then you already know how to create tags.

    Any parameter within a module is addressable in the HMI, in other words, these parameters are the tags.  Create a new module, add a parameter to it, assign it to a cont/workstation and download.  You can then point the HMI to that parameter (tag).  DVSYS.YOURMODULE/PARAMETER.F_CV (if float).

    does that make sense?

    Sent from Windows Mail

    From: zahraa
    Sent: ‎Monday‎, ‎June‎ ‎2‎, ‎2014 ‎8‎:‎13‎ ‎PM
    To: DeltaV@community.emerson.com

    Hey 

    I am a student in my final year and am using DeltaV in my project 

    I want to know how to create tags in the DeltaV system?

    i am trying to create tags and use them later in the DeltaV Operate Configure HMI

    I want to use these tags to store data that i am reading from OPC DataHub through Tunnel/mirror.

    I know how to create tags for I/O but what i want to know is that , is it possible to create internal tags in DeltaV that are not associate with I/O?

    Thanks

  • zahraa

    In reply to Ben Bishop:

    Thank you  Ben Bishop and AdrianOffield for helping me in this matter

    Ben Bishop , this is actually what i was looking for , an internal tag (parameter)

    I will try your methods in school tomorrow .

    Thanks, your help is greatly appreciated

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