How do I synchronize data collection on two DT3001 boards?

I am very new to Labview, and I am trying to find an easy way to synchronize my data collection on two DT3001 boards. I have tried modifying the AI Continuous Scan example. This works because I am using all 16 channels on each of my boards. Unfortunately, I cannot find a way to make both boards collect data beginning at the same time. Is there an easy way to synchronize both boards to collect data at the same time? Thank you for your help!

Hello Kacie,
I'm not sure how your DT 3001 device and it's drivers LabVIEW functions work, but for synchronizing acquisition on two National Instruments DAQ cards, you need to share a start trigger and sample clock between the two cards by connecting the Real-Time System Integration (RTSI) buses of the cards using a RTSI cable. This provides dedicated lines for sharing the same sample clock and start trigger, and provides highly accurate hardware-timed synchronization. Any synchronized starting you program in software in LabVIEW will be software timed. You can use the sequence structure within LabVIEW to group together different portions of code so that all the configuration is performed for both cards first, and then they are started at the same time. I know this probably isn't too much help, but I would need to know more about how your DT 3001 device and the AI Continuous Scan example works. You might be able to find better help on this at Data Translation's website.
Travis G.
Applications Engineering
National Instruments
www.ni.com/support

Similar Messages

How to sync the data between the two iSCSI target server

Hi experts:
I have double HP dl380g8 server, i plan to install the server 2012r2 iSCSI target as storage, i know the iSCSI storage can setup as high ability too, but after some research i doesn't find out how to sync the data between the two iSCSI target server, can
any body help me?
Thanks

Hi experts:
I have double HP dl380g8 server, i plan to install the server 2012r2 iSCSI target as storage, i know the iSCSI storage can setup as high ability too, but after some research i doesn't find out how to sync the data between the two iSCSI target server, can
any body help me?
Thanks
There are basically three ways to go:
1) Get compatible software. Microsoft iSCSI target cannot do what you want out-of-box but good news third-party software (there are even free versions with a set of limitations) can do what you want. See:
StarWind Virtual SAN [VSAN]
http://www.starwindsoftware.com/native-san-for-hyper-v-free-edition
DataCore SANxxx
http://datacore.com/products/SANsymphony-V.aspx
SteelEye DataKeeper
http://us.sios.com/what-we-do/windows/
All of them do basically the same: mirror set of LUs between Windows hosts to emulate a high performance and fault tolerant virtual SAN. All of them do this in active-active mode (all nodes handle I/O) and at least StarWind and DataCore have sophisticated
distributed cache implementations (RAM and flash).
2) Get incompatible software (MSFT iSCSI target) and run it in generic Windows cluster. That would require you to have CSV so physical shared storage (FC or SAS, iSCSI obviously has zero sense as you can feed THAT iSCSI target directly to your block storage
consumers). This is doable and is supported by MSFS but has numerous drawbacks. First of all it's SLOW as a) MSFT target does no caching and even does not use file system cache (at all, VHDX it uses as a containers are opened and I/O-ed in a "pass-thru" mode)
b) it's only active-passive (one node will handle I/O @ a time with other one just doing nothing in standby mode) and c) long I/O route (iSCSI initiator -> MSFT iSCSI target -> clustered block back end). For reference see:
Configuring iSCSI Storage for High Availability
http://technet.microsoft.com/en-us/library/gg232621(v=ws.10).aspx
MSFT iSCSI Target Cluster
http://techontip.wordpress.com/2011/05/03/microsoft-iscsi-target-cluster-building-walkthrough/
3) Re-think what you do. Except iSCSI target from MSFT you can use newer technologies like SoFS (obviously faster but requires a set of a dedicated servers) or just a shared VHDX if you have a fault tolerant SAS or FC back end and want to spawn a guest VM
cluster. See:
Scale-Out File Servers
http://technet.microsoft.com/en-us/library/hh831349.aspx
Deploy a Guest Cluster Using a Shared Virtual Hard Disk
http://technet.microsoft.com/en-us/library/dn265980.aspx
With Windows Server 2012 R2 release virtual FC and clustered MSFT target are both really deprecated features as shared VHDX is both faster and easier to setup and use if you have FC or SAS block back end and need to have guest VM cluster.
Hope this helped a bit :)
StarWind VSAN [Virtual SAN] clusters Hyper-V without SAS, Fibre Channel, SMB 3.0 or iSCSI, uses Ethernet to mirror internally mounted SATA disks between hosts.

How to Check UPL data collection at Solution Manager

Hello,
I had activated UPL data collection as per the document How to Guide –SAP Custom Code Management Usage and Procedure Logging.
I can check UPL data in my managed system by Report “/SDF/SHOW_UPL"
But I am not able to get the same data in Solution Manager by this same repot (/SDF/SHOW_UPL).
When I run this report in solman it show me only Solution manager data.
How I can read Manage System data in Solman? And what are the check point (for both Solman and Manage system) I need to check for ensuring my UPL date collection is working fine.

Set up CCLM and the custom code setup and you will be able to view UPL data that way,

How we calculate the date difference between two list in SharePoint 2010

Hi friend's....I have two list first is list1. In this list i have two coulmn start_date and End_date. In second list2 i have two column HolidayName and Holiday_date. Now i want two find the number of day in list1 Excluding Weekend and Holiday_date(that
column from list2). How i will do ..? Please help me dosto..

Thanks for reply...
I have done the date difference in list1. But i want to Exclude the Holiday_date form list2.
I have list1 - Start_date , End_date, Number_of_day(Exclude weekend and Holiday_date between Start_date and End_date )
list2 - HolidayName, Holiday_date
Now how i will calculate the Number_of_day in first list.

How to configure jazn-data.xml for two realms?

Hi,
in my test application a JSP page is secured with <auth-method>BASIC</auth-method>.
I use the jazn-data.xml configurtion in the Embedded OC4J in JDeveloper 10.1.2.
With the standard configuration of jazn-data.xml I can sign in with user admin/welcome without any problems.
In this case only the jazn.com realm exists.
If I configure a second realm over the JDeveloper menu "Tools -> Embedded OC4J Server Preferences ..." then I can´t sign in any more.
The new realm domain.com have some users in the group myusers. In the orion-web.xml I add the new group in the role-mapping.
What is the problem? I can´t find informations in the documentation.
Oracle® Application Server Containers for J2EE
Security Guide
10g Release 2 (10.1.2)
B14013-02
Thanks and best regards,
Tobias
orion-web.xml
<orion-web-app servlet-webdir="/servlets/">
<security-role-mapping impliesAll="false" name="user">
<group name="jazn.com/users"/>
<group name="domain.com/myusers"/>
</security-role-mapping>
</orion-web-app>
web.xml
<web-app>
<description>Empty web.xml file for Web Application</description>
<session-config>
<session-timeout>35</session-timeout>
</session-config>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<login-config>
<auth-method>BASIC</auth-method>
</login-config>
<security-constraint>
<web-resource-collection>
<web-resource-name>TestApp</web-resource-name>
<url-pattern>*</url-pattern>
</web-resource-collection>
<auth-constraint>
<role-name>user</role-name>
</auth-constraint>
</security-constraint>
<security-role>
<role-name>user</role-name>
</security-role>
</web-app>

Hi,
I switched my above example from jazn-data.xml to LDAP and deployed this in iAS.
In the OID are two realms configured, realm_1 and realm_2 and some users for each.
But I can only access my JSP with users of realm_1 or realm_2 and not
simultaneous users of both realms. That´s dependents on the configured "Default
realm" of the JAZN LDAP User Manager in the EAR.
If I set "Default realm" = realm_1 in the enterprise manager of the iAS then
only members of realm_1 can access the JSP and vice versa for realm_2.
I packaged my above example as EAR and configured the default generated
orion-application.xml in the enterpise manager of the iAS.
orion-application.xml
<?xml version = '1.0'?>
<!DOCTYPE orion-application PUBLIC "-//ORACLE//DTD OC4J Application runtime
9.04//EN" "http://xmlns.oracle.com/ias/dtds/orion-application-9_04.dtd">
<orion-application deployment-version="10.1.2.0.2"
default-data-source="jdbc/OracleDS" treat-zero-as-null="true">
<web-module id="webapp" path="webapp.war"/>
<persistence path="persistence"/>
<principals path="principals.xml"/>
<jazn provider="LDAP">
<property name="ldap.user" value="cn=orcladmin"/>
<property name="ldap.password" value="!ias_admin10g"/>
</jazn>
<log>
<file path="application.log"/>
</log>
<namespace-access>
<read-access>
<namespace-resource root="">
<security-role-mapping>
<group name="jazn.com/administrators"/>
</security-role-mapping>
</namespace-resource>
</read-access>
<write-access>
<namespace-resource root="">
<security-role-mapping>
<group name="jazn.com/administrators"/>
</security-role-mapping>
</namespace-resource>
</write-access>
</namespace-access>
</orion-application>
orion-web.xml
<orion-web-app servlet-webdir="/servlets/">
<security-role-mapping impliesAll="false" name="user">
<group name="realm_1/users"/>
<group name="realm_2/myusers"/>
</security-role-mapping>
</orion-web-app>
What do I have to configure to get access to the JSP with both realms?
Best regards,
Tobias

How to compare table data available in two different databases

Hi,
I need to compare two tables data in available in two databases - how easly I can do that .. I have Table A in Database A and Table A in Database B which is snapshot of DB A.TableA - but here are some discrepencies now I need to match two tables .. but no extra space available, so no exp imp.
Thanks in advance,
Chitrasen

HI,
What is the difference that you are looking for, if it si for some records missing in some tables you could use MINUS and get the output. IF you are looking to compare the TABLE structure then you could look into the datadictionary VIEWS of both the database's and check the difference.
Thanks

How to display no data found for two different elements

i wanted to display report either by dept wise or supplier wise
so when I dont have deptno related data
It should say no data found
for that I'm using if condition
same for supplier too
instead of giving twice can I give it in the same if condition
if so how

Use logical operator 'or'
like <?if:not(DEPT_GRP) or not(SUPPLIER_GRP)?>No data Found<?end if?>

How can I acquire data in a PCI DAQ board using a SCXI rack?

Hello.
I have an acquisition system that consists in:
· 3 PCI DAQ boards:
- PCI-MIO-16-E-1
- PCI-6052-E
- PCI-6034-E
· 3 cables to connect PCI boards and SCXI modules
· 1 SCXI chassis:
- SCXI-1001
· SCXI modules + terminal blocks:
- 4x SCXI_1121 + SCXI_1320 (for voltage analog inputs)
- 1x SCXI_1520 + SCXI_1314 (for strain gauges)
- 1x SCXI_1530 (for accelerometers)
I have been trying to acquire different signals (specially voltage signals that are easier to reproduce) but I haven't been able to do it. I can't read anything from MAX or LabView. I have tested the PCI boards with a SCB68 terminal block (without any SCXI component) and they work properly. Problems appear when I use the SCXI chassis and the SCXI modules. I don't know if there is a problem with the hardware or it is a wrong configuration.
I guess channels in the SCXI modules correspond to analog input channels in the PCI board they are connected to, but I don't know if I have to read data from analog input channels of the PCI boards or from SCXI channels that appear in MAX (I have tried both posibilities, but they don't seem to work).
I don't know if I have to use Differential, RSE or NRSE configuration. I have tried all of them. Sometimes I only read noise, sometimes signal is fixed in a limit value (maximum or minimum, it depends), sometimes it's fixed in a value near zero,... I have changed connections and configuration options so many times I can't exactly say when one thing or another happens.
I have tested only one PCI board with only a SCXI module in order to avoid interaction and confusion. Nothing.
I think I have tried changing almost every option in MAX, but it doesn't work.
I'm sure I'm missing something and solution is quite simple, but I can't find it.
Can anybody explain to me how to connect and configure my system to read any signal? I only need a few steps or highlights. Maybe some clues about what the problem can be.
Thanks!

I have several comments and suggestions:
A) Have you "added a device" in MAX and actually added the SCXI chassis? This step is necessary to get the chassis to work. Click on "add a device" and choose the 1001 chassis . Do this for one DAQ card and one module only initially. The Set Up wizard should walk you through the configuration. If you are unable to add a chassis within MAX, I suspect the chassis is not working correctly.
B) Once configured, you can examine the SCXI channels in MAX as follows:
1) Open the DAQ card in MAX and Open the Test Panels
2) For the SCXI channel to view, use the following convention OB0!sc(n)!md(m)!ch where the letter (n) corresponds to the chassis number in MAX (usually = 1), the letter (m) corresponds to the module number (slot) where the module is located in the chassis, and (ch) represents the channel(or channels) you wish to view. So presuming chassis ID=1, and a module in slot 1, and you wish to view channel 3, you would type the following in the channel field for the DAQ card channel to view:
OB0!sc1!md1!3 (note OB0!sc1!md1!3:6 will display channels 3 through 6)
All of the SCXI channels for a given DAQ card are multiplexed through channel 0 of the DAQ card, Channels 1 and up are not used, hence the initial three characters in the SCXI call refer to "On-Board Channel 0 (OB0)"
C) For the subsequent set up, it will be necessary to first add the additional modules to the chassis (when powered off). Then open MAX and update the chassis. (If you get an error then simply delete the chassis reference in MAX and add a new chassis). You will then be required to set the interface mode of each module as either parallel or multiplexed. In parallel mode, you associate a distinct module with a distinct DAQ card in the host PC. For those DAQ cards that will address multiple modules, you must first configure the modules to be in adjacent slots in the chassis and then assign the first module to the cabled DAQ card - then all of the modules assigned to that DAQ card should be configured in "multiplexed" mode.
D) Once the chassis has been properly configured, you can click on each module and set the gains, filters, and terminal block types.
I hope that this helps to get you started.

How to enforce data collection

Hi everybody,
how can I enforce data collection at a specific operation? I am using the integrated POD showing the data to be collected in one part of the window. The data collection itself works fine, but it is merely optional. I can complete the operation without a warning.
So, where is the hook or rule that I need to set up in order to check whether data collection has been done before completion of the operation?
Georg

Hello,
Please chec k the link below:
http://help.sap.com/saphelp_me52/helpdata/EN/d7/f7f0be3fec4a31bec083a035eb2423/content.htm
this explains activity CT500,
This activity deals with the checking of component, making them as mandatory to assembly etc.
you can change for the CT500 and CT500_RICH activities in Activity Maintenance:
On POD you have to use these activities.
Note: The system executes all code associated with a hook point in the same database transaction. For hook points within POD pushbutton activities, the transaction includes a single pushbutton activity, such as Start (PR500). If the hook point activity fails, the system rolls back, or cancels, the entire transaction. For example, in the figure in Site Level Hook Points, if you associate Check Configuration (CT520) with the POST_START hook point and the components have not been assembled, the system rolls back the Start as well. This is true for all hook points
br,
Pushkar

How to skip the date in breakdown maint order

Dear PM Guru's,
please suggest me how to skip the date inbetween the two working days. please check the below scenario: based on factory calendar (production ) saturday was holiday. one breakdown maintenance order was opened on friday afternoon and its closed on sunday afternoon. now user wants only breakdown hours of production running days/ hours. production was produced upto saturday earlymorning and its renewed sunday morning. where as saturday producion was not planned and its not produced , so user wants to skip that time from the breakdown duration calculation. please suggest me is it right practice? if its right how we have to do in SAP? please let me know it.
thanks in advance to all the PM guru's
regards
Jalu

Hi,
check this link Equipment Downtime
I believe u may have to recalculate the breakdown hrs using some FM in user exit QQMA0014 QM/PM/SM: Checks before saving a notification

Perfstsat data collection

How to run perstat data collections to have 10 minute sample periods throughout different times of the day.
Here is the stats we need to collect running the Oracle database 11.2.0.3 in Linux
number of CPUs/cores and CPU usage
RAM configured and used
Disk Capacity and used
Disk I/O usage

schedule a job to run every 10 mts.
Something like below:
BEGIN
DBMS_SCHEDULER.CREATE_JOB ( job_name => 'STATSPACK_COLLECTION',
job_type => 'STORED_PROCEDURE',
job_action => 'perfstat.statspack.snap',
repeat_interval => 'FREQ=MINUTELY;BYMINUTE=10',
enabled => TRUE,
comments => 'Statspack Collection'
END;
/

If Both tables having References then how to insert the data each other

Hai EveryOne..,
My Sample data.,
Create table emp (empno number primary key,ename varchar2(20));
Create table emp_dup (empno number references emp(empno),ename varchar2(20) primary key);
alter table emp add constraint ename_fk foreign key(ename) references emp(ename);
My Question is How to insert the data into these two tables?
Its a *"Circular Reference"* Concept.
Please ...
Thank You!!

You need to set the DEFERRED clause of the constraint when you create your foreign key as DEFERRABLE by which you can move the constraint validation at transaction level.
In an interview point of view that could be a reasonable answer. But in real time this could be strongly questionable.
Here is an example
SQL> create table emp1 (empno number, ename varchar2(10))
2 /
Table created.
SQL> create table emp2 (empno number, ename varchar2(10))
2 /
Table created. Define Primary Key for two tables
SQL> alter table emp1 add constraint emp1_pk primary key (empno)
2 /
Table altered.
SQL> alter table emp2 add constraint emp2_pk primary key (ename)
2 /
Table altered. Add foreign key for two tables with DEFERRED clause set as DEFERRABLE
SQL> alter table emp1 add constraint emp1_fk foreign key (ename) references emp2(ename) initially deferred deferrable
2 /
Table altered.
SQL> alter table emp2 add constraint emp2_fk foreign key (empno) references emp1(empno) initially deferred deferrable
2 /
Table altered. Now here is the test case
SQL> insert into emp1 values (1, 'karthick')
2 /
1 row created.
SQL> commit
2 /
commit
ERROR at line 1:
ORA-02091: transaction rolled back
ORA-02291: integrity constraint (ARBORU.EMP1_FK) violated - parent key not found So the validation is done at Transaction level. Now let insert the value into both tables.
SQL> insert into emp1 values (1, 'karthick')
2 /
1 row created.
SQL> insert into emp2 values (1, 'karthick')
2 /
1 row created.
SQL> commit
2 /
Commit complete.

How to modify the VB examples in ni-scope to sample data simultaneously from two channels in PCI 5922?

Dear all:
I want to write VB programs to sample data simultaneously from two channels in PCI 5922. The niscope driver has some example VB programs to sample data from one channel, for example, the "save to file ", the program works well to sample the data from one channel. When I modify it to sample data simultaneously from two channels, I always get error so I seek your help on how to write the program to sample two channels simulatenously. Thanks. I attached the sample program here and what I tried to modify is the "channel name" and "waveform()"
Regards
Andy
Attachments:
savetofile.doc ‏42 KB

Hi Bajaf, regarding the FFT of the four channels, the next link might be what your looking for:
http://digital.ni.com/public.nsf/allkb/862567530005f09c8625671b00739970
Respect the phase issue how are you doing the acquisition of the signals, are you doing two independent acquisitions? if you are controlling them as independent acquisitions try to synchronize them with triggers and the clock.
How much are they out of phase?
By the way we know have forums in Spanish
Best Regards
Benjamin C
Senior Systems Engineer // CLA // CLED // CTD

Hello, My iCal don't synchronize older events than two or three month ago. How can I do to synchronize all my schedule? In iTunes it's all right in Calendars. I don't put a cross in "synchronize event older than ....... days". Thanks for answer.

Hello, My iCal don't synchronize older events than two or three month ago. How can I do to synchronize all my schedule? In iTunes it's all right in Calendars. I don't put a cross in "synchronize event older than ....... days". Thanks for answer.

Just saw your post. Better late than never. You may want to
consider GameBrix.com, where you can create Flash based, casual
games using your web browser. No downloads are required. You can
create a game from scratch using a library of images, sounds and
game mechanics. You can also upload your own. The online script
editor will allow you to view and edit the ActionScripts associated
with each game mechanic. In short, a great way to ramp up on game
design and build your own game without investing a lot of $
upfront.
BTW I am associated with GameBrix so any feedback is
appreciated.

I had an iPad2 and use a PC with windows xp to synchronize iTunes. Now i have a Mackbook Pro. How do I synchronize my Ipad to the new macbook without losing all my data?

I had an iPad2 and use a PC with windows xp to synchronize iTunes. Now i have a Mackbook Pro. How do I synchronize my Ipad to the new macbook without losing all my data?

On the MacBook launch iTunes.
From the menu bar click Store / Authorize This Computer.
Now sync your iPhone.
Apple - Support - iPhone - Syncing

How do I synchronize data collection on two DT3001 boards?

Similar Messages

Maybe you are looking for