Logic level translatio​n 5 - 3.3

Hi,
is there a way to shrink the available output digital voltage range from 5V to 3.3V on a PXIe-6358 in LabVIEW or logic level translator circuits have to be used for ex from Analog Devices?
Krivan

Multifunction DAQ cards usually do not have the capability to modify the TTL output levels from the digital lines.  I would suggest level shifters here.  With voltage divider resistors, the output voltage could vary with the input impedence of the target device.  Level shifters would be consistent, and would also take care of boosting the 3.3v output from the device to 5v input to the DAQ.
Another option would be to use a digital card that has the capablility to use different logic levels.  But those are usually expensive.  Look at the PXI-6551.
- tbob
Inventor of the WORM Global

Similar Messages

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    Hi
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    See this lnk, http://gerardnico.com/wiki/dat/obiee/measure_level_based
    Thanks
    Don

  • Logical level in Fact tables - best practice

    Hi all,
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    Hi User,
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  • Setting aggregation content for logical level in 11g

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    3) when trying to go to one of the LTS and trying to set the logical level aggregation im not able to see the levels columns corresponding nor im getting the get levels option to get them. where am i going wrong?
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    KK
    Edited by: Kranthi.K on Sep 5, 2011 2:52 AM

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    UPDATED POST-2
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  • Setting Logical Level in LTS

    Hi all,
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    Regards.

    one thing is If you have multiple LTS in a single dimension like detail dim and aggregated dim. then you have to set the content levels for each LTS. Its always a good practice to mention which level the dimension is in any case.

  • Help on  Setting logical Levels  in Fact tables and on Dimension tables

    Hi all
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    Edited by: Xavier on Aug 4, 2011 10:50 AM

    I have read these blogs ,but what my question is
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    Edited by: Xavier on Aug 4, 2011 2:03 PM
    Edited by: Xavier on Aug 4, 2011 2:32 PM

  • Logical level for logical fact table sources

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    If levels are not set: By default levels are considered as lowest level
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    Edited by: Srini VEERAVALLI on Feb 5, 2013 8:33 AM
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    Edited by: Srini VEERAVALLI on Feb 14, 2013 9:09 AM

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    You may get info as below if you use Admin tool help file
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  • Logical Difference of defining Multiple Logical level keys

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    Sreekanth.

    Hey got the answer, there is a difference, if i add multiple columns as keys under a single logical level key, they both come under one key and its drill down on both the columns, i cannot select selectively out of which column of the two drill down is applicatble.
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  • Logical level Dimensions

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  • Logical level

    Hi,
    I created a logical column that derived from a EVALUATE function that called a database package (returning VARCHAR(30)) in Oracle. I don't know what I should enter for the "logical level" in that logical column. I have a date hierarchy that is like Total > Year > Quarter > Month > Date.
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    Hi User,
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    Get Levels. (Available only for fact tables) Changes aggregation content. If joins do not exist between fact table sources and dimension table sources (for example, if the same physical table is in both sources), the aggregation content determined by the administration tool will not include the aggregation content of this dimension.
    Source admin guide(get level definition)
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  • Number of elements at logical level / odbc driver

    Hi everyone,
    I'm new in BI area and I cannot understand one basic thing.
    I study documentation about BI server, exactly chapter about "creating dimensions" and I'm confused about setting "number of elements at logical level"
    It looks for me that "number of elements at logical level" is static.
    What will be when someone update data in the table and number of elements will be different than number of elements in our logical level?
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    regards
    Bart

    Number of elements is just an indication used by the BI Server (e.g. when generating LOV's in Answers). It won't cause any problems when it doesn't hold the exact number of elements available in the dataset.

  • Measure Aggregated at Logical Level causes poor performance

    OBIEE 11g
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    I've duplicated the existing Period_Expenditure rename to FY_Expenditure, and then changed the logical level for the Time dimension to Fiscal Year.
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    I'm going to answer my own question here as I've managed to build a simplified solution, it may help others.
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  • If Logical level mappings are blank in an LTS , what does it mean?

    Hi All,
    I was trying to find this out in the forum but couldn't.
    In my LTS, on the content tab, if i don't specify any "Aggregation, group by" information for the dims associated with my Fact table and keep it blank, then what does it mean? Would OBIEE treat this as at the detail level by default? So to test this, I created a logical fact and for its LTS, i didn't associate any logical level for dimensions. The query didn't give me any error and worked fine by using the correct join details.
    Also when do we associate an LTS with the Total Level for a dim, what's the use because as I understand, this means all our measures from that LTS would be calculated for the total level of the dim and we can do this by creating level based measure and associating it with the total level of the dim.
    I'll be thankful if somebody could explain me this in detail or direct me to a relevant documentation/ blog
    Thanks,
    Ronny

    Hi,
    When you have only one logical Table Source(LTS).
    You don't specify the logical levels. By default it would consider the detail level of the logical levels mapped to the fact table.
    When you have Multiple logical Table Source(LTS).
    The concept of Multiple LTS comes into picture when you have multiple sources. The BI server picks the optimum logical source depending upon the fields (columns) selected. And also depends on the Number of element set while creating the dimension hierarchies. Refer-http://gerardnico.com/wiki/dat/obiee/level_number_element
    For example- Suppose you have two logical table source Fact 1 and Fact 2 and logical levels( dimension hierarchies are created for two dimensions Dim 1 and Dim 2).
    For the first Fact 1 source logical level is mapped only with Dim 1 and Fact 2 is mapped to Dim 2.
    (You need to decide which fact source to hit depending upon the dimensions used in the report.)
    Then in the report when you select Dim 1 (by means of column selector/filters) then Fact 1 source will be hit and same appears in the query.
    Then in the report when you select Dim 2 (by means of column selector/filters) then Fact 2 source will be hit and same appears in the query.
    One more situation where you have mapped Fact 1 with Dim 1 First level of aggregation and Fact 2 with Dim 1 with Detailed level. Then the BI server picks depending upon the user's request. If the request data can be pulled from the detailed level ( which tends to be optimum then picks from the second source).
    So, its always better to set the logical source and check the query, if its hitting the correct sources according to the requirements.
    Regards,
    MuRam

  • Number of elements  to  be defined at  logical level

    In the Business Model and Mapping layer, dimension >Logical Level >> number of elements at this logical level
    I have come across two different version of how to deal with this
    First version - From the OBE and the admin server guide it says "The number does
    not have to be exact, but ratios of numbers from one logical level to another should be accurate".
    Second Version - a question from asked about what defines the number at the level as best practices
    To set the number of elements at each level of a dimension, which number would you use?
    A. the number of columns in a logical table
    B. the number of levels in a dimension
    C. the number of dimensions in a business model
    D. The number of tables in a physical model
    E. the number of distinct rows in physical column
    Question is
    what is the rule to set the number of elements at this level?
    If its been set depending upon the rows in the table . what will happen if the rows gets added every hour ??
    Edited by: ZSAM on Jun 8, 2011 7:06 AM
    Edited by: ZSAM on Jun 8, 2011 8:22 AM

    The ratio between the levels is what is important I believe. BI Server will use this information to determine which aggregate source to use. You should use the number of distinct rows as the value.
    You can also right click the hieracny and use "Estimate Levels" to auto-populate the numbers for you.
    Paul

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