USB6259 static with digital trigger

Similar Questions

• the analog inputs with digital edge trigger

  I am currently triggering a readout with a digital trigger using a 0 - 5v as the digital source encoder.  I am running LV 8.2.1 DAQmx 9.0 and a PCI-6259.  I use a VI I wrote and which is very similar to 'Acq & chart voltage-Ext Clk.vi', and using the one-pulse encoder connected to PFI8 as the clock source for the sample clock vi.  The only major difference is using the channel of the Z-trigger as a software reset inside the While loop with the DAQmx reading.  Currently, the sample clock doesn't allow that either read the lower edge or an increase of PFI8, so I get a sample by one-pulse.

  I need to double the rate of analog playback for a given tree rpm and encode them, so I need to read on the fronts and edges of the one-pulse encoder.  The sample clock can be reconfigured for the detection of changes and still read the PFI8 port to increase and decrease as inputs of physical channel, or do I have to configure detection of modification of the task/digital input for a single line and use the "ChangeDetectionEvent" as the source for the sample clock HAVE? Detection of Timing/change DAQmx can still use the signal in PFI8, or should I use DI ports, and which ports are DI should I use?

  Thanks in advance!

  In fact P0.8 is.  I was looking at the pinout for the 6251, no 6259.  Sorry about that.

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  I'm trying to convert "a digital trigger point" (an example of data acquisition for the E-series card) for one that runs on the series 621 x, which have similar I/O.  No joy.  The closest I come is one who clings both labview and my computer, which I am attaching. Any ideas?

  Hello

  Single-point timed material timing is different from what you will and as the error message is not supported on your map. You are also correct that you cannot use the trigger with a static generation. That being the case, why don't you create a waveform that is several samples of the same voltage and perform a build finished with this waveform. But, you will want to make sure you do not clear this task until everything is done, so it does not reset the card and it's configuration and he hold the last value that was released.

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  Hello world

  I want to ask a general question on the data generation process.

  I used "DAQmx start digital dashboard" to set up the task to start generating power on a front descended from a digital signal in my application.  My trigger is a train of pulses with a trigger freqeuncy 10 Hz. The build process stops on the front? Or it's just efficient when the first impulse appears and then the signal is generated constantly?

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  haiyueli,

  With a trigger DAQmx start Digital Edge, you will begin your generation when the trigger condition is met (in the case of the falling edge). It will not stop on the front. He will continue to run until it stops in the task, either you stop or a finished generation.

  What you reference looks more like a break (example).

• Outbreak of the AO tasks with digital triggering

  I'm triggering an analog using a digital triggering (PFI0) task on a NOR-6343 (USB), but don't see the behavior desired of my VI (see screenshot).

  * When I shoot digital triggering (digitalTrigger = False), the AO signals appear planned (except that... they do not fire).

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  A few follow-up questions:

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  Hello kllurie,

  What do you use the trigger for? The way you have the task to put in place now, it will run continuously until you press the STOP button and ignore any input trigger. If you want to be able to have the task to complete and start over with a digital triggering, you make the task two finishes and Retriggerable. You can configure the task to be finished by replacing the constant continuous samples on the Timing.vi with finished samples and giving him a number of samples to be taken before stopping. Then you can do the task Retriggerable using the property trigger DAQmx node and choosing Start > more > Retriggerable sometime before the Start.vi.

  As to what it should be used as your relaxation, you'll want something with a fast rise time (so that it is detected as a numerical advantage) and is not as fast as the sample clock. If you use the sample as your trigger clock, there would be essentially no difference between your redeclenchables task and a continuous. It would end the collection of samples and then immediately redeclenchee.

  Let me know if that answers your questions!

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• Help with a trigger

  Hello:

  I wrote the following trigger:

  CREATE OR REPLACE TRIGGER insACT

  AFTER INSERT ON ACT

  FOR EACH ROW

  BEGIN

  INSERT INTO ACT_VER

  ()Act_ID_N, Act_Ver_No_N, Act_Status_CD_C, Created_DT, Created_By_User_CD_C, Last_updated_DT, Updated_By_User_CD_C( )

  VALUES

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  END;

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  Also provide scripts for tables.

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• What is wrong with this sequence, it does not work when, after 3 inserts, I add a new record with the trigger it gives an error.

  Mr President.

  What is wrong with this sequence, it does not work when, after 3 inserts, I add a new record with the trigger it gives an error.

  --SL_CUSTOMERS table data
  
  
  INSERT INTO SL_CUSTOMERS VALUES(1,'Kamrul Hasan',NULL,NULL,'Moghbazar', 'Dhaka','0456789123',NULL,NULL,NULL,'Y',NULL);
  INSERT INTO SL_CUSTOMERS VALUES(2,'Rabiul Alam',NULL,NULL,'Motijheel', 'Dhaka','0567891234',NULL,NULL,NULL,'Y',NULL);
  INSERT INTO SL_CUSTOMERS VALUES(3,'Shahed Hasan',NULL,NULL,'2-G/1,2-2,Mirpur', 'Dhaka','0678912345',NULL,NULL,NULL,'Y',NULL);
  
  
  
  

  CREATE SEQUENCE  "ALIZA"."SL_CUSTOMERS_SEQ"  MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 NOCACHE NOORDER  NOCYCLE ;
  
  
  CREATE OR REPLACE TRIGGER SL_CUSTOMERS_TRG 
  BEFORE INSERT ON "ALIZA"."SL_CUSTOMERS"   
  FOR EACH ROW   
  BEGIN   
  IF :NEW.CUSTOMER_ID IS NULL OR :NEW.CUSTOMER_ID < 0 THEN  
    SELECT SL_CUSTOMERS_SEQ.nextval   
      INTO :NEW.CUSTOMER_ID  
      FROM DUAL;   
    END IF;   
  END;   
  /
  
  
  
  

  When I try to insert several records with the seq.nextval it gives error

  violation of primary key.

  INSERT INTO "ALIZA"."SL_CUSTOMERS" (CUSTOMER_NAME) VALUES ('sdfsd')
  ORA-00001: unique constraint (ALIZA.SL_CUSTOMERS_PK) violated
  ORA-06512: at line 1
  
  
  
  
  One error saving changes to table "ALIZA"."SL_CUSTOMERS":
  Row 4: ORA-00001: unique constraint (ALIZA.SL_CUSTOMERS_PK) violated
  ORA-06512: at line 1
  
  
  
  
  
  
  
  

  Concerning

  Mr President.

  I find the solution by creating a function before the triiger

  as below

  CREATE SEQUENCE  "ALIZA"."SL_CUSTOMERS_SEQ"  MINVALUE 1 MAXVALUE 9999999999999999999999999999 INCREMENT BY 1 START WITH 1 NOCACHE NOORDER  NOCYCLE ;
  
  CREATE OR REPLACE FUNCTION get_SL_CUSTOMERS_vId RETURN VARCHAR2 AS
  BEGIN
     RETURN SL_CUSTOMERS_SEQ.NEXTVAL;
  
  END;
  /
  
  CREATE OR REPLACE TRIGGER SL_CUSTOMERS_TRG
  BEFORE INSERT ON "ALIZA"."SL_CUSTOMERS"
  FOR EACH ROW
  DECLARE
  dummy VARCHAR2(200);
  BEGIN
    dummy := get_SL_CUSTOMERS_vId();
    :NEW.CUSTOMER_ID := dummy;
  END;
  /  
  

  It works very well

  Thank you all for the suggestions.

  Concerning

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• Who can help me with a trigger?

  Hi, I have a little problem with my database that can be resolved, or so I think that, with a trigger. First of all, that is.
  
  
  create table person
  (id_utente number (5) Primary Key,)
  name varchar2 (40),
  sexo varchar2 (1) check (sex = ' or sex = 'F').
  Morada varchar2 (60),
  date of data_nascimento,
  contacto number (10),
  numero_BI number (9)
  );
  
  create table Serviço
  (id_servico number (5) Primary Key,)
  Description varchar2 (40),
  Valor number (5),
  date of data_inicio,
  date of data_fim,
  check (data_fim > = data_inicio)
  );
  
  create the table modalidade
  (id_modalidade number (5) Primary Key,)
  Description varchar2 (40),
  Valor number (5)
  );
  
  create table quarto
  (id_quarto number (5) Primary Key,)
  Description varchar2 (40)
  );
  
  create the table inscricao_servico
  (id_inscricao_servico number (5) Primary Key,)
  id_servico number (5) references Serviço (id_servico).
  id_utente number (5) references user (id_utente),.
  date of data_pagamento
  );
  
  create the table inscricao_mod
  (id_inscricao_mod number (5) Primary Key,)
  id_modalidade number (5) references modalidade (id_modalidade).
  id_utente number (5) references user (id_utente),.
  date of data_inscricao,
  date of data_cessacao,
  check (data_cessacao > data_inscricao)
  );
  
  create table voy
  (id_estadia number (5) Primary Key,)
  id_utente number (5) references user (id_utente),.
  id_quarto number (5) quarto references (id_quarto).
  date of data_entrada,
  date of data_saida,
  check (data_saida > data_entrada)
  );
  
  
  create the table pag_mensalidade
  (id_pag_mensalidade number (5) Primary Key,)
  id_inscricao_mod number (5) references inscricao_mod (id_inscricao_mod).
  mes_mensalidade number (6).
  date of data_pagamento,
  unique (id_inscricao_mod, mes_mensalidade)
  );
  
  insert into person values (1, 'Manel', am', 'Rua large', to_date('80.02.02','yy.mm.dd'), 123456789, 687654321);
  insert into person values (2, "Artur", am', 'Rua pequeña', to_date ('81.03.04', 'yy.mm.dd'), 223456789, 587654321);
  insert into person values (3, 'Cardoso', ', 'Rua estreita', to_date ('82.04.05', 'yy.mm.dd'), 323456789, 487654321);
  insert into person values (4, 'Abílio', ', 'Rua larga', to_date ('79.07.06', 'yy.mm.dd'), 423456789, 787654321);
  insert into person values (5, 'Antunes', ', 'Rua nova', to_date ('79.06.01', 'yy.mm.dd'), 423557982, 387654822);
  
  insert into modalidade values (1, 'Total', 800);
  insert into modalidade values (2, ' Diurno ate 18' 600 ');
  insert into modalidade values (3, ' Diurno ate 22', 700 ');
  
  Insert in quarto values (1, '412');
  Insert in quarto values (2, '413');
  Insert in quarto values (3, '414');
  insert into values of quarto (4, '415');
  Insert in quarto values (5, '416');
  
  insert into Serviço values (1, ' Excursao a Fatima ", 150, to_date ('11.05.13', 'yy.mm.dd'), to_date ('11.05.13', 'yy.mm.dd'));
  insert into Serviço values (2, 'Ida ao cinéma', 10, to_date ('11.08.22', 'yy.mm.dd'), to_date ('11.08.22', 'yy.mm.dd'));
  insert into Serviço values (3, 'Apoio domiciliario', 100, to_date ('11.07.01', 'yy.mm.dd'), to_date ('11.07.31', 'yy.mm.dd'));
  
  insert into voy values (1, 1, 1, to_date ('11.05.05', 'yy.mm.dd'), null);
  insert into voy values (2, 2, 2, to_date ('10.01.02', 'yy.mm.dd'), null);
  insert into voy values (3, 3, 3, to_date ('09.12.15', 'yy.mm.dd'), to_date ('10.02.25', 'yy.mm.dd'));
  
  insert into inscricao_mod values (1, 1, 1, to_date ('09.12.15', 'yy.mm.dd'), null);
  insert into inscricao_mod values (2, 2, 2, to_date ('11.11.11', 'yy.mm.dd'), null);
  insert into inscricao_mod values (3, 1, 3, to_date ('10.04.10', 'yy.mm.dd'), to_date ('11.09.21', 'yy.mm.dd'));
  
  insert into inscricao_servico values (1, 1, 1, null);
  insert into inscricao_servico values (2, 1, 2, to_date ('11.10.01', 'yy.mm.dd'));
  insert into inscricao_servico values (3, 2, 4, null);
  insert into inscricao_servico values (3, 4, 5, to_date ('10.12.12', 'yy.mm.dd'));
  
  insert into pag_mensalidade values (1, 1, 201110, to_date ('11.10.23', 'yy.mm.dd'));
  insert into pag_mensalidade values (2, 2, 201111, to_date ('11.11.27', 'yy.mm.dd'));
  insert into pag_mensalidade values (3, 3, 201112, NULL);
  insert into pag_mensalidade values (1, 4, 201111, NULL);
  
  
  drop table voy;
  drop table inscricao_servico;
  drop table quarto;
  drop table pag_mensalidade;
  drop table inscricao_mod;
  drop table modalidade;
  drop table Serviço;
  drop table person;
  
  
  OK, the problem is: the table "voy" means "stay" and "quarto" means "room". I must, before inserting it on 'Hotel', to check whether or not this room is available.
  
  I can do this:
  
  insert into voy values (4, 3, * 3 *, to_date ('09.12.15', 'yy.mm.dd'), to_date ('10.02.25', 'yy.mm.dd'));
  
  But if, after this command, I do this:
  
  insert into voy values (5, 4, * 3 *, to_date ('09.12.15', 'yy.mm.dd'), to_date ('10.02.25', 'yy.mm.dd'));
  
  He accepts and he shouldn't, because I put 3 and 4 users in the same room at the same time.
  
  the 3rd field is the id of the room, and the two fields are the date of entry (data_entrada) and (data_saida) release date. If a piece is linked to a specific residence in which the release date has not disappeared by, this room should not be available. In addition, the release date can be null, which means that the release date is unknown.
  
  I hope I was clear on my question.
  
  Thanks, Chiapa

  I have not yet tested, but this should do:

  CREATE OR REPLACE TRIGGER valida_estadia
  BEFORE INSERT ON estadia
  FOR EACH ROW
  DECLARE
  quarto NUMBER;
  
  BEGIN
   SELECT COUNT(1)
   INTO quarto
   FROM estadia
   WHERE id_quarto = :new.id_quarto and
   (data_saida > :new.data_entrada or
   data_saida IS NULL);
  
   IF quarto > 0 THEN
     RAISE_APPLICATION_ERROR(-20001,'There is already a user in the room.');
   END IF;
  END valida_estadia;
  / 
  

  Published by: René Argento on 02/10/2012 11:43