cDAQ 9184 with module NI9232 for sensor accelerometer and pressure

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• cDAQ-9174 with modules 9225 and 9239 for issue of power measurements...

  Hello to one and all.

  I do turn a cDAQ-9174 with modules 9225 and 9239 to measure the voltage (120, 208-240, 277 VAC) and current (via the clamp amp i400, Fluke - 10mA/exit A) respectively.

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  Chad

  Hi, Will,

  Your request for a screenshot actuall lead me to the solution.  Not enough samples!  I took little data too slowly and only seeing part of the wave of fishing AC each iteration.  .. that became glaring when I tried to this graph.  So I increased my sampling of 100 to 5 Hz and things seem to have settled things down a bit.  Thank you for the good question!

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• 'The pressure for the opacity' and 'Pressure for size' button shortcut (or in the shortcuts feature custom)?

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• Help with string.split() for line breaks and spaces

  What I'm trying to do is to take a series of numbers and convert it to a table, while cutting the numbers, aren't. Here's the format:

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  I appreciate any help, thanks.

  You can use the Array.map method to convert your strings. Something like this:

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  var arr:Array;

  ARR = myString.replace(/^\s+/,"").replace(/\s+$/,"").split(/\s + /);

  ARR = map (str2Num, null);

  or combine them all in a single statement

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• BMP180 in configurations multi master i2c uses I2CCombinedMessage for get-temp-and-pressure operations

  I noticed that, thanks to the I2CCombinedMessage it is possible to support the multi-master configurations, as a combined message is treated as a transaction, a single bus, where a rather lengthy communication with a slave i2c (as request of get-temp - pressure and designed by BOSCH for the BMP180 complex) is protected from interference by other masters of the bus. Great!

  But looking at fact sheet BMP180 of BOSCH, it turns out the I2CCombinedMessage is not a suitable driver for this particular problem, because the appliance rather lenthy delay between the command and reading - and the JavaDocs of the I2CCombinedMessage does not help on adding breaks in the recorded transaction.

  Therefore, it would be great if I2CCombinedMessage would have a .pause(long milliseconds) method.

  Is there something like that planned for a future release, or I have to go with the methods begin() and end() distinct (which is of course a workaround)?

  Hi Marcus!

  No,. pause() isn't in the plan for the near future. And Yes, begin () /end () workaround

  / Sergey

• cDAQ-9184 AI DO

  Community of hell,

  I'm working on a chassis OR cDAQ-9184-one module (NI 9474) and two modules of it HAVE (NI 9215).

  The task is to acquire analog measurement and generate a pulse train to trigger a Laser sensor. Please find attached my simple diagram.

  The challenge here is to know how to sync the and GOT them. As a newbie in this area, I get several questions as follows:

  1. for synchronization multifunction, I need route my output internal counter to the task of AI as a sample clock. In NI MAX I can find this source in the advanced calendar section. However, in Labview, this CtrxInternalOutput is not available in the DAQmx Timing.vi.  Do you have an idea what could be the problem?

  2. during the measurement, I got 6590 HAVE measures and 6699 laser that are triggered by the pulse train with a sampling frequency of 500 Hz. It seems that we do not get the same amount of HAVE and. What could be the problem?

  3. information on this synchronization, in my opinion, we must configure the same sampling rate, the same same sample clock and HAVE & acquisition start together. Am I wrong? The difference in the number of samples is possible due to IT & do not stop at the same time, when I press stop in Labview?

  Thanks for your help.

  -sparkle

  1. the "Advanced" are hidden by default.

  2. There are two issues:

  i. you must start the task I face the task of meter output while he is in time for the first edge of clock.

  II. to make sure that read you the same number of samples in the form of impulses generated, you must stop the task of output of the meter and make sure you read back all the samples that were in the FIFO of AI.

  3 see #2.

  Best regards

• Help, had fights with this sql for a day now

  Grateful if someone could give me a pointer here. fighting with this thing for a day and can't do things.
  
  Have 2 tables
  tbl_ate_jun & tbl_pd_jun
  the two paintings by xt
  
  This is creates it for everyone.
  

  CREATE TABLE "ME"."TBL_PD_JUN"
    (
      "ID"                  VARCHAR2(500 BYTE),
      "PROJECT_NUMBER"      VARCHAR2(500 BYTE),
      "PROJECT_NAME"        VARCHAR2(500 BYTE),
      "DESCRIPTION"         VARCHAR2(500 BYTE),
      "PROJECT_TYPE"        VARCHAR2(500 BYTE),
      "ORGANIZATIONAL_NAME" VARCHAR2(500 BYTE),
      "CUSTOMER_NAME"       VARCHAR2(500 BYTE),
      "OFFICE_FSR"          VARCHAR2(500 BYTE),
      "PROGRAMS_FSR"        VARCHAR2(500 BYTE)
    )
    ORGANIZATION EXTERNAL
    (
      TYPE ORACLE_LOADER DEFAULT DIRECTORY "XE_FTP" ACCESS PARAMETERS ( records delimited BY newline skip 0 fields terminated BY ',' OPTIONALLY ENCLOSED BY '"' MISSING FIELD VALUES ARE NULL ) LOCATION ( 'tbl_pd_jun.csv' )
    ) ;

  CREATE TABLE "ME"."TBL_ATE_JUN"
    (
      "ID"                        VARCHAR2(500 BYTE),
      "PERSON_SSO"                VARCHAR2(500 BYTE),
      "FIRST_NAME"                VARCHAR2(500 BYTE),
      "LAST_NAME"                 VARCHAR2(500 BYTE),
      "VOUCHER_HOURS"             VARCHAR2(500 BYTE),
      "FISCAL_YEAR_WEEK"          VARCHAR2(500 BYTE),
      "ORG_TIER2_NAME"            VARCHAR2(500 BYTE),
      "ORG_TIER3_NAME"            VARCHAR2(500 BYTE),
      "VOUCHER_REASON"            VARCHAR2(500 BYTE),
      "VOUCHERING_STATUS"         VARCHAR2(500 BYTE),
      "ORG_TIER4_NAME"            VARCHAR2(500 BYTE),
      "TIER4_MANAGER_NAME"        VARCHAR2(500 BYTE),
      "VOUCHER_CODE"              VARCHAR2(500 BYTE),
      "VOUCHER_DESCRIPTION"       VARCHAR2(500 BYTE),
      "PERSON_COUNT"              VARCHAR2(500 BYTE),
      "HOUR_TYPE"                 VARCHAR2(500 BYTE),
      "APPLIED_FLAG"              VARCHAR2(500 BYTE),
      "COST_CENTER_CODE"          VARCHAR2(500 BYTE),
      "VOUCHER_CLASS"             VARCHAR2(500 BYTE),
      "VOUCHER_CLASS_DESCRIPTION" VARCHAR2(500 BYTE),
      "VOUCHER_SUB_CLASS"         VARCHAR2(500 BYTE),
      "PROGRAM_TYPE"              VARCHAR2(500 BYTE),
      "PAYCODE_NAME"              VARCHAR2(500 BYTE),
      "PAY_CODE"                  VARCHAR2(500 BYTE)
    )
    ORGANIZATION EXTERNAL
    (
      TYPE ORACLE_LOADER DEFAULT DIRECTORY "XE_FTP" ACCESS PARAMETERS ( records delimited BY newline skip 0 fields terminated BY ',' OPTIONALLY ENCLOSED BY '"' MISSING FIELD VALUES ARE NULL ) LOCATION ( 'tbl_ate_jun.csv' )
    ) ;

  Basically, in tbl_ate_jun, it has all the user ID (person_sso)
  Im trying to generate a report that contains all person_sso numbers in the first column.
  Second column have applied_hours, then office_hours, then programs_hours, then total_hours, then diff_hours (difference).
  
  Here's the code so far, but I just cant get, it is true, that it shows never all of the sso, each select individually works very well, but may not be combined, does not work well.
  
  

  select a.person_sso,NVL(sum(b.applied_hours),0),NVL(sum(c.office_hours),0),NVL(sum(d.programs_hours),0),NVL(sum(e.total_hours),0),NVL(sum(f.diff_hours),0) 
  from 
  
  tbl_ate_jun a,
  
  (SELECT
  tbl_ate_jun.person_sso as applied_sso,
  tbl_ate_jun.Voucher_Hours as applied_hours
  FROM
  tbl_pd_jun,
  tbl_ate_jun 
  WHERE
  tbl_ate_jun.voucher_code IN (select project_number from tbl_pd_jun
  where Office_FSR IS NULL AND Programs_FSR IS NULL)
  and tbl_ate_jun.voucher_code=tbl_pd_jun.project_number
  )b,
  
  
  (SELECT
  tbl_ate_jun.person_sso as office_sso,
  tbl_ate_jun.Voucher_Hours as office_hours
  FROM
  tbl_pd_jun,
  tbl_ate_jun
  WHERE
  tbl_pd_jun.Project_Number=tbl_ate_jun.Voucher_Code AND tbl_pd_jun.Office_FSR = 'Y' 
  )c,
  
  (SELECT
  tbl_ate_jun.person_sso as programs_sso,
  tbl_ate_jun.Voucher_Hours as programs_hours
  FROM
  tbl_pd_jun,
  tbl_ate_jun
  WHERE
  tbl_pd_jun.Project_Number=tbl_ate_jun.Voucher_Code AND tbl_pd_jun.Programs_FSR = 'Y'  
  )d,
  
  (SELECT
  tbl_ate_jun.person_sso as total_sso,
  tbl_ate_jun.Voucher_Hours as total_hours
  from
  tbl_ate_jun 
  )e,
  
  
  (SELECT
  tbl_ate_jun.person_sso as diff_sso,
  tbl_ate_jun.Voucher_Hours as diff_hours
  from
  tbl_ate_jun
  WHERE voucher_code NOT IN (select project_number from tbl_pd_jun)
  )f
  
  
  where
  a.person_sso=b.applied_sso
  and a.person_sso=c.office_sso
  and a.person_sso=d.programs_sso
  and a.person_sso=e.total_sso
  and a.person_sso=f.diff_sso
  
  group by a.person_sso

  Help, please. not every column is filled with a sum of data, some would be empty if it applies to the sso.
  
  Published by: Jay on August 10, 2011 07:45

  not every column is filled with a sum of data, some would be empty if it applies to the sso.

  You will probably need to OUTER JOIN then...
  http://download.Oracle.com/docs/CD/B28359_01/server.111/b28286/queries006.htm#sthref3295
  http://www.Oracle-base.com/articles/9i/ANSIISOSQLSupport.php#outer_join

• data delays cDAQ-9184 HAVE AO

  Hello

  I 9184 cDAQ chassis with two modules installed: NEITHER 9215 (HAVE) and NI 9263 (AO).

  AO generates the signal of 5 kHz and bought it. Initially, all right, but after 20-30 seconds, it has delays (up to 30 seconds!) between the production and acquisition.

  Time lag depends on the speed of the DAC. If it 20 * 5000 = 100 kHz, delay = 15 sec, if it 10 * 5000 = 50 kHz, the delay is 30 sec.

  It works with the PCI - DAQ version, but I do not understand why he has these delays with ethernet chassis.

  I tested it on gigabit ethernet with chassis directly connected to the host. But I don't think that problem is on a network, because the net charge is 0.55% and ~ 1Mb\s data transfer. The processor is also low.

  And I think evil isn't in the generation, acquisition, as it evacuates all samples in buffer (number per channel in DAQmx read nearby 'availsamplesperchan') and because changing CAD rate influence on signal updates.

  In addition, it works fine without these big delays to signal lower rates, for example, sine wave 50 Hz generating.

  Example of code is to join. I read 100 times of 5 kHz sinusoid, 16 points per period (refresh rate = 80kHz, 1600samples). And 5 kHz sine generation of 100 periods with 20 points per period (rate is 100 kHz, 2000samples).

  

  Now, this works in two separate loops with the control "TotalSampPerChanGenerated".

  Problem was with a buffer too small mailing to cDAQ. 8 k samples and 4 caching works pretty stable buffers.

  Also, I checked the difference between 'CurrWritePos' & 'TotalSampPerChanGenerated' and the maximum value is 1 500 000. 1 sample is it DBL, it really means that the buffer size is 1.5 M * 8 bytes = 12 MB.

  Thanks for the thread.

• Windows 7 Pro x 64 does not detect HP Mobile Data Protection Sensor (accelerometer)

  Hello.

  I installed win7pro x 64 yesterday and already fallen on a serious problem, which is how I use the laptop a little dangerous for my valuable data.

  When I was working on HP Vista 32 bit (of the partition recovery etc.) brand, it was a device called the HP Mobile Data Protection with HP ProtectSmart software sensor (or protect Smart). In other words, the accelerometer HDD which parks the HARD drive heads when it "feels" it is down or something and the software for it. It has worked flawlessly.

  
  

  Until I decided to install Win7... And then, surprisingly, after failure of driver install and take a look in the Device Manager, I have noticed that there is no such device. I checked three times, looked at property of each device, even reinstalled Vista 32bits back - he has shown again - and installed Win7 - not detected again. There is nothing that has the HPQ004 device ID! I remember people saying that after that fresh Windows installed, there are 6 unknown devices or more. I got only 5. [Device fingerprinting, 3 x MemCard player and IR receiver]. There is no accelerometer... Also, when I try to install the drivers/software, windows appears:

  ProtectSmart Hard Drive Protection: with the text Property.AccelerometerNotPresent

  and then another saying something like features were not installed due to wrong installation or not supported feature.

  So now I'm stuck with a laptop it is dangerous to travel with, because the disk is no longer protected

  I have already installed all the drivers available on the HP page, even downloaded those newer Intel (chipset) etc.

  Is there a solution to this? Has anyone else encountered this problem?

  Windows 7 is officially released and available in RTM version, not beta, so I think that HP should open support in his favor and release new drivers for win7! And above all, to solve this problem...

  If anyone is interested, this problem is solved now.

  Just download the new drivers from http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en & cc = us & prodTypeId = 321957 & prodSeriesId = 3744188 & swItem = ob-76187-1 & mode = 4 & idx = 2, install and make sure you have the latest version of the BIOS. Tested - heads are being finally parked! Yay!