Current Tag Query

Newbie Tag query questions, two questions in one here -
1) We are able to pull multiple tags within a history query, but when we try a Current query it only pulls back one tag.  Why doesnt it return the other tags within the Current?
2) We have been seeing odd error message occasionally, "SQLGetData: Conversion Character to Timestamp.". We thought it was the DateTime config but that is set up correctly.
Any thoughts?

Brian - glad to see you made it back from AT&T park in one piece...
1)  Is this just any pair of tags, or just certain combinations?
2)  Does your ODBC System DSN have any of the advanced settings checked besides Read-Only?  (specifically the Timestamp sent as Character one).
1/2)  Are any of your tag meta queries failing when it sends the initial request for description and scaling ranges, etc?
Regards,
Jeremy

Similar Messages

  • How to pass 100+ tags in a single sql/tag query

    <b>In my current application I have to pass 180+ tags in a single query to retrieve data from iHistorian.
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    If anybody has done it in the past ,please share with me and also let me know how to do it</b>

    Currently you can only query a maximum of 128 tags, this is a hard limit and may be changed in future releases of xMII, but < 11.5 (im fairly sure 12 also) all have the limit of 128.
    As for iHistorian with the OLEDB UDS, you can write a query that would return over 128 queries becasue this is an input limitation on the UDSs. (PLEASE DON"T ASK US HOW TO WRITE iHistorian QUERIES... we aren't experts in iHistorian).
    Please note that though you can query over 128 tags, the performance may not be what you expect... This may take a very long time to return.
    Martin

  • Tag Query error when assigning mode in Link Editor

    Hi,
    I am receiving the following error when I run a transaction that contains a Tag query.  In my transaction I have set the tag query mode to be defined by a local property via the link editor.  Then when I execute the transaction I get the following error:
    "[ERROR] [TAG_QUERY_WRITE_TAG]com.sap.xmii.Illuminator.logging.LHException: Mode parameter was not found or is malformed"
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    Thanks,
    Justin

    Hi Mike,
    Please correct me if I understand the logic incorrectly.  But here is what I am thinking....
    I have configured my transaction to have this flow:
    String_List_To_XML_Sequence --> Repeater_TagValues  -->  TAG_QUERY_WRITE_TAG
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    Target Xpath: TAG_QUERY_WRITE_TAG.TagValue.1
    Expression: String_List_To_XML_Parser_TagValues.Output{/Rowsets/Rowset/Row[#Repeater_TagInput.CurrentItem#]/Item}
    Target Xpath: TAG_QUERY_WRITE_TAG.TagName.1
    Expression: String_List_To_XML_Parser_TagNames.Output{/Rowsets/Rowset/Row[#Repeater_TagInput.CurrentItem#]/Item}
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    [INFO] Statistics [Load = 35 ms msec, Parse = 35 ms, Execution = 2015 ms, Total = 2067 ms]
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    [INFO] Statistics [Load = 11.137 msec, Parse = 224.113 msec, Execution = 451.78 msec, Total = 736.62 msec]
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    If there is a way to utilize only 1 Tag Query, then I am not sure how the transaction flow should be configured.
    Thanks for your time,
    Justin
    Edited by: Justin M Brown on Jul 14, 2011 7:29 PM
    Edited by: Justin M Brown on Jul 14, 2011 7:33 PM

  • Tag Query Error

    Hi,
    I am executing a tag query and I keep getting the following error -
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    OperationList [ERROR] - Error updating
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         at com.sap.xmii.applet.common.BaseApplet.getResultModel(BaseApplet.java:1089)
    Can somebody explain what would be the cause of such an error and how to fix it?
    Regards,
    Chanti.

    Actually, they have to be run in isolation because I can't load both projects in the OPC server at the same time. So, I can run the related MII applications only one at a time. But heres something I found in the UDS logs -
    [P:4192, T:5000,       UDS, ] 0x0     HRESULT: 0x80070057 [Invalid at the top level of the document.
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    [P:4192, T:5000,       UDS, RETHROW] 0x0     Rethrowing exception.     [Connection.cpp @ 1130, CLHOpcDaConnection::FinalGetMetadata]
    [P:4192, T:5000,       UDS, RETHROW] 0x0     Rethrowing exception over COM.     [tagUtil/lhds2Connection.h @ 1427, lhds::LHDSConnectionImpl<class CLHOpcDaConnection>::GetMetadata]
    [P:4192, T:5000,       UDS, ] 0x0     Caught exception over a COM boundry.     [tagUtil/lhds2NamespaceMode.h @ 174, lhds::LHDSTagListModeImpl<class CLHOpcDaDSTagList>::LookUpDescription]
    [P:4192, T:5000,       UDS, HANDLED] 0x0     Handled exception.     [tagUtil/lhds2NamespaceMode.h @ 177, lhds::LHDSTagListModeImpl<class CLHOpcDaDSTagList>::LookUpDescription]
    Does it make sense?

  • Tag query - Rowcount Property

    Hi,
    We are using SAP MII 12.1.5 ( build 83).
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    Since the client gives more important on the accuracy of data, we are using the history event mode.
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    After doing all the testing, We found out the For the particular period PI has some where around 18000 rows. and we are only getting 9999 rows since we have specified this in the tag query row count.
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    The maximum count is 10000. After that the query gives unknown error Java LH exception.
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    If we fix the row count for a certain limit and the query returns more than those number of rows,  how to get all data?
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    Any input is appreciated.
    Thanks in Advance,
    Kishore kumar P S

    Hi Mike,
    We have initially told about the performance issues if we go with this approach.
    But once we have shown the demo last week, they agreed with the modified approach.
    Now we are using the Statistics with TOT.  Still the totalizer value is not taking effect.
    As I know from the help docs, the totalizer factor is used to change the from one unit to another unit.
    the help Doc says
    "The area under the curve (effectively a "totalizer" value) can be calculated by multiplying the time-weighted average by the width of the time interval in seconds.  However, quite often, the instrument or measurement is in different units (perhaps gallons per minute versus per second), and the TotalizerFactor parameter can be used to perform the correction."
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    Thanks & Regards,
    Kishore kumar P S

  • Tag Query - History 12.0.2

    Has anyone run into a problem with using the History mode of a Tag Query?
    I am connected to an IP21 data source.  I can get HistoryEvent data and Current data back, but when I run in History mode, I get a blank HTML.  Running in XML mode, I receive the following back:
    <?xml version="1.0" encoding="UTF-8" ?>
      <Rowsets DateCreated="2008-02-25T13:17:36" EndDate="2008-02-25T13:17:28" StartDate="2008-02-25T12:17:28" Version="12.0.2 Build(88)" />
    I have an 11.5 instance and the same tag and data source does return the expected values, so the problem does not appear to be in the data source.
    I am going to initiate a ticket for this.
    Thanks,
    Mike

    Never mind.  Turns out it was pointing to incorrectly configured local data server.  Configuration fixed and then it works fine.

  • MII 11.5 and PCo 2.1 and Tag Query Error

    Hi,
    I have KEPWare OPC server configured with a single tag, and with the OPC Client open.  I have PCo 2.1 configured with a single agent, and 'legacy' ticked with port 9001.  I have a UDS connector pointing to port 9001, and a tag query in 'currentwrite' mode, and can successfully write a value from the query editor (within MII 11.5) to KEPWare, when tested directly within the MII query editor.
    However, when I call the same tag query from within an MII transaction, and set 'TagName.1' and 'TagValue.1' to the values I want, I get the following error:
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    I see this error in the PCo log.
    Interesting thing is, that within the transaction editor, when I select the underlying tag query, and the editor asks to generate the XML, and I say Yes, the underlying tag query runs fine (I can see the value getting updated within KEPWare).
    I've also tried with/without subscription items in PCo, plus different settings for 'Cache Mode' in PCo, plus using fully qualified tag name (ie: channel.device.tag as KEPWare sees it), etc, but in all cases I get the above error.
    Any ideas?

    Hi Diana,
    I upgraded to PCo V2.1.4.2, still same issue.  And yes, the data server (UDC) is checked as "Writable"!!
    As mentioned, the tag query runs fine in both "Current" mode and "CurrentWrite" mode.  Only when I call the same query from a transaction do I see this error.  Excerpt from Runner Log below;
    2011-02-23 15:20:32,390 [ServletExec: request: time=1298434832343, uri=/Lighthammer/Runner]
    ERROR  Runner - [9FA68944-67CE-824D-3FA6-D96023119ECE][ERROR]:
    IlluminatorQuery: An item with the same key has already been added. TMP0794C967-0F69-8F04-568C-CD037815D1D0
    2011-02-23 15:20:32,453 [ServletExec: request: time=1298434832343, uri=/Lighthammer/Runner]
    ERROR  Runner - [9FA68944-67CE-824D-3FA6-D96023119ECE][ERROR]:
    ACTION FAILED: End Action IllumTagQuery_0 : () TMP0794C967-0F69-8F04-568C-CD037815D1D0
    If I leave the transaction Tag Query action (that calls the underlying tag query) without any assignment to TagValue.1, then there is no error, and the error as set in the aunderlying tag query is used.  But as soon as I assign values to TagValue.1 inside the transaction, I get the error.  I've tried passing a value via a local paramater etc, same issue.
    Regards
    Kevin.

  • Modes and Methods in Tag Query and SQL Query

    Hi,
    Can someone explain me about the modes available in <b>TAG Query and SQL Query.</b>
    TAG Query has modes such as <b>Current, CurrentWrite, GroupList, History, HistoryEvent, ModeList, Statistics and TagList</b>
    SQL Query i still have doubt on <b>FixedQuery with output , Modelist and TableList</b>
    I also need to know why methods are used?
    Thanks in advance
    Regards
    Muzammil

    I'll try to  explain to the best of my knowledge :
    <u><b>TagQuery</b></u>
    <b>Current</b> : Gives you the current value of the Tag you are reading.
    <b>CurrentWrite</b> : Let you write a Value as the Current Value of the Tag.
    <b>GroupList</b> : Generally Tags are grouped under different groups. Returns you the name of the Groups.
    <b>From the xMII Help Document :</b>
    <b>History</b> : History Mode returns interpolated data.  Interpolation can be accomplished by specifying either the # of rows desired or the retrieval resolution.  If the mode is "History" and a value is provided for the Resolution parameter (which is in seconds), the connector will retrieve evenly-spaced values starting at the beginning of the time interval, up to the maximum # of rows specified in the RowCount parameter.  If no value is provided for the Resolution parameter, the connector will return an evenly-spaced number of values based on the value of the RowCount parameter.
    For example, if the time interval is 1 hour, Resolution is 15, and RowCount is 240, the connector will return evenly spaced values each 15 seconds, up to 240 values (which would span the entire hour).
    If the time interval is 1 hour, Resolution is not provided or is set to zero, and RowCount is 120, the connector would return 120 evenly spaced values, at an effective interval of 30 seconds.
    <b>HistoryEvent Mode</b> : The connector can provide historical values "as they were stored" the database.  This mode provides no interpolation of values.
    <b>Statistics Mode</b> : When retrieving data for statistical calculations, the connector utilizes the same techniques as in the "HistoryEvent"  mode.  It is important to note that the first two returning columns in the HistoryEvent query must be the timestamp and the value, in that order.  The SAP xMII Statistical processor expects that order, or errors will occur.  This ensures precision of statistical measurements, particularly time-weighted average, by using the exact storage time and values from the historical database.  The SAP xMII system provides the statistical calculations.
    <b>Modelist</b> : Basically returns the modes of the Query Available. The Data returned is same as the data in the Modes list in the Quert Template Editor.
    <b>Taglist</b> : Returns all the Tags in the Datasource.
    <u><b>SQL Query</b></u>
    <b>Modelist</b> : Same as above.
    <b>TableList</b> : List of all the tables in the database to which the connector connects.
    Again from SAP xMII Help Documentation :
    <b>FixedQueryWithOutput</b> : This mode is used to execute an Oracle stored procedure or function that returns a REF CURSOR as output.  The position of the REF CURSOR is marked by a "?" in the query.  For example:
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    insert into usage (id, name) values (2, 'test2');
    insert into usage (id, name) values (3, 'test3');
    insert into usage (id, name) values (4, 'test4');
    insert into usage (id, name) values (5, 'test5');
    insert into usage (id, name) values (6, 'test6');
    insert into usage (id, name) values (7, 'test7');
    insert into usage (id, name) values (8, 'test8');</i>
    <b>Define the stored procedure.</b>
    <i>DROP PACKAGE foopkg;
    CREATE PACKAGE foopkg IS
      TYPE cursortype is ref cursor;
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    CREATE PACKAGE BODY foopkg IS
      PROCEDURE test (mycursor in out cursortype) AS
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  • Link Tag Query to SQL Query

    I have tag values that are steps or alarm codes in a process and I want to create a cross reference SQL table for these values.  Using BLS, how do you link these tables to have an Xacute query that will return the cross referenced values from the tag?
    I appreciate any help that can be provided.
    Thanks
    Larry

    Rick,
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    Current query returns
    DateTime                              XV43003     -
    (header row)
    03/22/2007 03:30:00                     0
    03/22/2007 03:31:00                     2
    03/22/2007 03:32:00                     8
    Preferred method
    DateTime                              TagName         Value     -
    (header row)
    03/22/2007 03:30:00              XV43003              0
    03/22/2007 03:31:00              XV43003              2
    03/22/2007 03:32:00              XV43003              8
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    Thanks for your help!
    Larry

  • SAP MII 14.0 Tag Query Findings

    Hi Everyone,
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    Where are you querying the data from?
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  • How to change the explain plan for currently running query?

    Hi All,
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  • Dynamic Tag Query  with dynamic tag name.

    Hi,
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    Thanks,
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    Hi Srinivas,
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    Make sure that the tag name you pass to the historian is the same as the tag name returned by the historian as part of the data set, and make adjustments for that. For example, some historians escape non-alphanumeric characters when they process your request (e.g. passing "abc.def 12-rt" as the tag name can be returned from the historian as "ABC.DEF_12_RT", etc.).
    Hope this helps,
    Sascha

  • [solved] awesome WM - how to check if current tag is empty?

    Been trying to obtain this behaviour with Awesome:-
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    So basically it only works on 'normal' windows except windows that I'll probably like to have in the current tag (Gmrun and Keepassx obviously). I use this in conjunction with eminent so as to ensure that I only see as many tags as there are active. Eventually I'd like to maybe use shifty and only generate tags on-the-fly.
    What I want to do, however, is for the app to start in the current tag if its empty. For that, I need to detect that state, and I can't seem to do it. This is the code fragment from eminent.lua that seems to do it:-
    function gettags(screen)
    local tags = {}
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    As far as I can understand, screen[screen]:tags() returns a table of tags. ipairs splits it up into a range of values, and then the :clients() method is called to determine what clients there are. I presume # is for 'number-of' but I'm not sure.
    Any advise on how I can achieve this count? I just want to put an 'if' as commented in my first code snippet.
    Last edited by ngoonee (2012-09-03 08:05:04)

    Thanks Wey for pointing the way (no pun intended), after some playing around I've obtained the following:-
    -- Function to count number of clients in a tag
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    end
    if count > 0 then
    return false
    end
    return true
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    current_tag = tags[mouse.screen][awful.tag.getidx()]
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    awful.client.movetotag(tag, c)
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    I didn't want to use a rule since I didn't actually manage to figure out how to call rules, and just manually hard-coding c.class etc. seemed easier to me at the time. I realize I'm basically coding lua as if its C, but that's basically all I know programming wise so far .
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  • Error using a tag query

    We have a tag query that works in our sandbox environment, but not in dev.  I loaded the same JDBC drivers on both systems.
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    I have verified the Data Server set up is identical in both environments.  Connection status in both environments is identical - running, same number of connections, etc.
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    One of your included JDBC driver archives has a class that matches the path provided by the JDBCDriver setting for the data server (likely the sqljdbc.jar file).
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