Connection of sensors with different output and floating grounds varies to NI 9205

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• The connection of sensors with rs232 to the computer output

  In my project I want to display & connect the results/readings of different types of sensors (RTD, barometer, HR sensor, proximity sensor) with rs232 outputs in the Labview software.
  To do this, can I simply connect them to my computer using the usb-rs232 converter or do I need a data acquisition equipment to convert analog signals into digital signals?
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  Thanks in advance

  Sensors with outputs RS-232 already have the analog-digital conversion.  You just need the USB RS232 converter. Many people have reported on the Forums that converters with FTDI chips seem to have less problems than other materials.

  You should also the Protocol of communication with manufacturers of sensors to correctly set the parameters of the serial port and to decode the results.

  Lynn

• Restore the virtual hard drive backup on a different node with different IP and host name.

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  Please forgive me for not knowing how to use this forum, I am an old man and not good at computers, I called Adobe, they said it was my only hope!

  Sorry to repeat

  Everything was fine until my Windows 10, lost the start feature, so I had to go back to Windows 7, in this process, I lost my Adobe Reader software, I tried about ten times with different versions and different locations, all with the same error message that is download "the feature you are trying to use is on an unavailable network resource"... are looking for It seems that it does not find when I search there, and I no longer seem to have the AcroRead.msi... the most difficult file, I try, I get deeper and deeper into things I don't know... I am looking for a simple solution!

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  First of all, download, install and run Adobe Reader cleaning tool to get rid of all remains little. Here is a link to the tool: Download Adobe Reader and Acrobat tool - Adobe Labs

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• Procedure with input output and num_array sys_refcursor

  Hello

  I have to write a procedure with input of type of parameter num_array which will forward a list of IDs to the procedure and the output is sys_refcursor that will pass the id with the other columns in the table to the list of identifiers.

  operating system is the table with the id, os_name column with more than a few columns.

  create table os

  (identification number,

  OS_name varchar2 (30),

  .. .few more columns);

  I spend the os_name with id through the sys_refcursor.

  So I created the following procedure.

  num_array is a type of data defined by the user that is created as follows:

  create or replace type num_array in the table to the number;

  /

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  is

  Start

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  / * oses_gtt is the temporary table with id number data type varchar2 os_name * /.

  for indx in 1.id_num.count

  loop

  insert into os_gtt

  SELECT id, os_name

  of the operating system

  where id = id_num (indx);

  end loop;

  commit;

  Open the id_os for

  Select * from os_gtt;

  end;

  /

  
  

  I created a global temporary table with the column id and os_name.

  Insert in this table by using the id of i / p and setting os_name recovery operating system for this id in the loop.

  
  

  Then I open the exit sys_refcursor.
  

  
  

  Could someone please suggest me a better way to write the same logic?

  
  

  Thanks in advance
  

  No need of the TWG or anything too flashy here.

  Since you have a SQL type, you should be able to get away with...

  open out_ref_cursor for
  select 
  from os, table(cast(id_num as num_array)) nu
  where os.id = nu.column_value;
  

  A couple of notes apart from that. ID is not a great name for a column, why not OS_ID to be online with your OS_NAME? Second, always try to avoid use of the TWG, they are handy once in awhile, but not required nearly as often as find you them.

  A "rebate" in the casting of tables like that and their use in SQL is the cost based optimizer usually (depending on version) has no idea of how to do to optimize the query (it has no statistics on the table as it does on a table). In General, if you know that you have X items in this table, it is better to say Oracle. You can use the CARDINALITY indicator to tell Oracle about the number of lines, you expect your table to have on average. The default proposal is going to be your block size, so assuming that 8 k (standard) the estimate is going to be like 8000 items... probably not close to reality.

  See you soon,.

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  <><>

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