PI Developer Technologies

Welcome to the PI Developer Technologies feedback page!  

This forum covers the PI AF SDK, PI Web API, PI OPC DA and HDA Servers, and the PI SQL family. We created this forum to hear your ideas, feature suggestions and feedback. Please suggest your most important features and design change ideas on this site, and vote for your favorite ideas.

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  1. Upgrade .NET version support for AF SDK

    Please add support for .NET Core to the AF SDK. Currently only full .NET Framework is supported.

    210 votes

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    45 comments  ·  PI AF SDK  ·  Flag idea as inappropriate…  ·  Admin →

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    With the introduction of CoreWCF 1.0, we are re-evaluating this request.  Performance, backwards compatibility, security, and technological longevity are key features that we are researching.


    Please continue to share your use cases with us, as well as any key capabilities that your use case requires.

  2. Complete PI Web API documentation

    As a PI Web API user I want to know exactly what kind of Body Parameters (their defaults and description) are supported by PI Web API methods. The current sample requests are not sufficient because they do not describe the values for body parameter, though many parameters have unique restrictions.

    Here is an example of desired content:
    https://developers.jivesoftware.com/api/v3/cloud/rest/StreamEntity.html

    53 votes

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    1 comment  ·  Help / Documentation / Videos  ·  Flag idea as inappropriate…  ·  Admin →

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    PLANNED  ·  Ray Verhoeff responded

    We have received a lot of feedback on this. We are looking at on-line help with better samples of queries and responses. We are looking at some web frameworks for offering a live “Try It” feature for PI Web API. We are also looking at comprehensive search within the PI Web API help system.

  3. Be able to use RTQP to access PI Points and Config strings (DA Directly)

    Be able to use RTQP to access PI Points and Config strings (DA Directly)
    Use case:
    create a dashboard that lets me know the amount of bad data (tags) mapped to our AF.

    (eg. “Bad Input”, “Calc Failed”, etc)

    Our system has numerous tags and it is impossible to monitor them one by one.

    The RTQP engine has allowed us to query massive amount of AF Attributes to get their current values easily.

    Some AF attributes have been excluded in our system. For that case, we are not interested whether or not the values are bad.

    Hence I would like…

    40 votes

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    3 comments  ·  PI SQL Client  ·  Flag idea as inappropriate…  ·  Admin →

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  4. OSIsoft Python Library for data science

    As a data scientist, I would like to be able to use a fully supported OSIsoft Python library without having to directly interface my Python script with a middleware. This OSIsoft Python library would be able to perform the same operations as PI DataLink, but directly in Python. Having this OSIsoft Python library would be beneficial for me because it would greatly improve the time needed to create data analysis scripts and make it a lot easier to interface with 3rd party Python libraries like Pandas for data analysis.

    23 votes

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    2 comments  ·  Other  ·  Flag idea as inappropriate…  ·  Admin →

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  5. PI WEB API - Swagger page

    It would be great if as an addition to conventional documentation there was a SWAGGER page with short explanation of methods and parameters (including return types, etc.)

    20 votes

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    1 comment  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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  6. PI SQL Client to make use of the RecordedValue method and Retrieval Modes for the GetValue transposed function

    When making use of the GetValue transposed function when creating a new Template specific Data Model, we can see that under the hood it makes us of the AF SDK call AFData.InterpolatedValue method to capture the data at a specified timestamp provided in the transposed function. This method does make use of any Retrieval Modes.

    It would be good for this GetValue transposed function to make use under the hood of the AF SDK call AFData.RecordedValue method instead since this method offers the possibility of using Retrieval Modes like "AtOrBefore" which is really useful to capture the last archived value…

    18 votes

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    1 comment  ·  PI SQL Client  ·  Flag idea as inappropriate…  ·  Admin →

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  7. PI TagMedian function need to be added in AF analysis.

    Please add PI TagMedian function in AF analysis like PI TagAvg and PI TagMean. Currently Median function is available but it cannot be applied for archive values of PI Tags during particular time range

    17 votes

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    2 comments  ·  General  ·  Flag idea as inappropriate…  ·  Admin →

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  8. Add data reference impersonation for value retrievals

    When retrieving values for attributes, impersonating the user can enable the user of security at the data source level. For example, with a PI Point Data Reference attribute, it could allow the user's authorization to be user at the data archive rather than the PI SQL DAS (RTQP) service account doing the data retrieval.

    15 votes

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    0 comments  ·  PI SQL Client  ·  Flag idea as inappropriate…  ·  Admin →

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  9. Import-AFXml (PowerShell) should have ContinueOnError option

    Both AFImport.exe and ImportXml (AFSDK) have options to continue on error (like is something is checked out or if there is a duplicate element name). For some reason the PowerShell version doesn't. This should be added.

    12 votes

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    2 comments  ·  Other  ·  Flag idea as inappropriate…  ·  Admin →

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  10. Include overridden attributes of derived templates in Event Frame View with PI SQL DAS (RTQP)

    When you create a template-specific event view, event frames based on derived templates are also returned. However, attributes which are overridden in the derived template return empty. This means more complicated queries using UNION ALL must be used.

    As a user, when I use a derived template with an overridden attribute, it is often because I need to change the way that attribute is calculated in a subset of cases. However, I still want to be able to create a view easily for all of this data.

    For example, I have a "Batch" template with "Pounds Produced". However, for a…

    11 votes

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    5 comments  ·  PI SQL Client  ·  Flag idea as inappropriate…  ·  Admin →

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  11. Starting a Backfilling / Recalculation from a web interface using the Web API

    We need a simple interface to modify data in the PI DA and restart calculations based on this data. For this we plan to develop a web interface, using the Web API.

    Modifying data is not a problem. But making a backfilling is more difficult.

    Backfilling an analysis is possible manually from the AF-Explorer. It is also possible from the AF-SDK. But not from the Web-API.

    This feature is very important if we want to give the user the possibility to make corrections via the Web-API in PI-DA and then update the calculated data.

    Translated with www.DeepL.com/Translator (free version)

    9 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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  12. PI Web API OMF send to multiple PI Systems

    I would like to be able to setup the PI Web API OMF endpoint to point to multiple PI Systems, so that way it is easy to send from this single instance to different production systems or to our development and production environments concurrently

    9 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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  13. PI AF SDK Linux Support

    As we know there are 2 major competitor for cloud technologies that is Microsoft and Linux destros. If we want to use Linux docker image or PCF Linux image to connect AF SDK, we don't have any provision for this as of now because AF SDK does not support Linux OS. If we support this then most of cloud customer attracts to use AF SDK in their organization.

    9 votes

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    1 comment  ·  PI AF SDK  ·  Flag idea as inappropriate…  ·  Admin →

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  14. Create a utility/script that will output the PI products installed, their versions and the most recent version of the product

    Create a utility/script that will output the PI products installed, their versions and the most recent version of the product on the machine it is run on. This would help with installations and to manage the current software that is installed.

    8 votes

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    1 comment  ·  General  ·  Flag idea as inappropriate…  ·  Admin →

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  15. Expose UOM Groups in PI Web API

    As a programmer I want the PI Web API to expose an endpoint for reading UOM Groups and UOM Group mappings. This would allow javascript based web applications to read the UOM Groups and mappings in order to use the mappings in subsequent data stream requests. Then the end users could see all data in familiar UOMs according to their selected UOM Group.

    UOM Groups was introduced in PI AF 2017 R2 and is supported in AF SDK 2.9.5+.

    The endpoint could e.g. be at
    https://host/piwebapi/assetservers/{assetServerId}/uomgroups/ and https://host/piwebapi/assetservers/{assetServerId}/uomgroups/{groupId}/mappings/

    A similar request exist under PI Vision product and maybe they can…

    8 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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    I incorrectly reported this item as completed, and I apologize for any inconvenience this has caused.  Please continue to vote on this item and share your use cases.

  16. Time Context Value Retrieval

    Example Scenario:

    We want to know the Specific Electricity Consumption (kWh/mt) over a time period (selected by users).

    Specific Electricity Consumption = (Electricity Consumption(kWh)) / (Raw Feed Consumed(mt))

    Where, Electricity Consumption (kWh) and Raw Feed Consumed (mt) are both attributes with PIPoint data reference, using value retrieval method: TimeMethod = Time Range; TimeRangeMethod = Total; EventWeighted

    Then, Specific Electricity Consumption is attribute with Formula data reference, simply: A=Electricity Consumption; B=Raw Feed Consumed;[A/B]

    So, on PI Vision, it can display the specific electricity consumption with the correct values. However, if we query through PI Web API for our own webpage, it…

    8 votes

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    0 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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  17. Implement FindChangedPIPoints

    Add a PIServer.FindChangedPIPoint implementation to allow easily detecting changes to the point table. Today one has to periodically load all PI Points to find and react on potential changes. Especially with larger point counts these operations can be really expensive.

    See https://docs.osisoft.com/bundle/af-sdk/page/html/M_OSIsoft_AF_PI_PIServer_FindChangedPIPoints.htm

    7 votes

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  18. Allow Creation of Acknowledgeable Event Frames

    The PI Web API exposes a "CanBeAcknowledged" property when reading Event Frames. However, this property is read-only: it cannot be supplied when creating a new Event Frame or updating an existing Event Frame. I would like the ability to include this parameter when creating an Event Frame.

    7 votes

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    2 comments  ·  PI Web API  ·  Flag idea as inappropriate…  ·  Admin →

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  19. Provide a PI SQL Commander Lite Standalone Download

    Currently, PI SQL Commander Lite is bundled with PI SQL Client, PI OLEDB Enterprise, and PI ODBC Driver.

    It is a very useful tool for PI OLEDB Provider, which does not bundle it. To use it, another provider needs to be installed to obtain PI SQL Commander Lite indirectly.

    The version of PI SQL Commander Lite that is bundled with each provider is the latest version of PI SQL Commander Lite at the time of the provider's release. This means that the latest versions of each provider could have different versions of PI SQL Commander Lite bundled with them.

    Manageability…

    6 votes

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    2 comments  ·  PI SQL Client  ·  Flag idea as inappropriate…  ·  Admin →

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  20. Enable SSO on PI SQL client to connect and authenticate to PI SQL DAS(RTQP engine)

    Currently PI SQL clients only support Kerberos & basic authentication. Enabling SSO on PI SQL client to connect and authenticate to PI SQL DAS(RTQP engine) would make PI data accessible from anywhere.

    5 votes

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