Differential Encoder and DAQ Connections

""Please help a DAQ/Motion neophyte ....
I'd like to synchronize/correlate a load cell output with the a linear stage position via the on-board differential encoder. The on-line documents show Ch.A to PFI8_Source, Ch.B to DIO6_Up_Down, and GND to DGND. However, the encoder that I have has A+ and A-, B+ and B-, I+ and I-, and GND channels (i.e., seven connectors). What is the proper way to connect to the terminal block of the SCC-2345 to communicate with my PCI-6036E DAQ device for this encoder? Thanks in advance ... Jerry""

This question was answered in another post, which is available HERE.
Spencer S.

Similar Messages

Encoder and LS184 Clock Converter Problems

I am trying to implement position measurements using a 9000 CPR and 1000 CPR encoder and a clock converter chip LS184 but I have trouble obtaining a consistent count with my PCI-6035E DAQ-STC counter. The count does not seem to be correct (9000 counts in one revolution, which is times 4 in X4 mode or 36,000 counts; I am getting around 14,000 and this is not even the same every time), and the count does not return to zero when turning the encoder back to the original position. I had that problem with the direct encoder connection to the counter (A to source, and B to DIO6), and obtained the LS184 clock converter chip to fix the problem. However, it is even worse with the clock converter. I tried different values of the bias r
esistor but the problem was still there. What am I doing wrong?

Hi Ed,
The DAQ-STC counter/timer chip on your PCI-6035E card is not your most accurate counter/timer chip to perform encoder measurements. You are better off using a PCI-6601 card which is much more accurate and has real encoder capabilities.
PCI-6601 (w/ NI-TIO Counter/Timer Chip)
http://sine.ni.com/apps/we/nioc.vp?cid=3589〈=US
The reason the NI-TIO chip is better suited for encoder measurements than the DAQ-STC is because of the following (which might also explain some of the difficulties):
1) DAQ-STC can't reset the count after an encoder revolution (NI-TIO can w/ Z-Index line)
2) DAQ-STC only has one encoder measurement mode and that is the 2-pulse encoder measurement mode. The NI-TIO has the X1, X2, X4, 2-pulse
This essentially me
ans that your DAQ-STC will count up when channel A leads B and count down if channel B leads A. There is no reference point, no ability to reset and no filters on the lines to prevent glitches.
What is probably happening in your case is that you are measuring 9,000 pulses in one revolution and you are also measuring glitches on the line which is why you are getting the extra 5,000 counts. The DAQ-STC shipping example programs will give you some insight into programming your E Series counter to make encoder measurements but your errors are more likely caused by the fact that it is just a simple 2-pulse encoder (up/down encoder).
Hope that helps. Have a good day.
Ron

Differential Mode in DAQ M series board

Hello all!
I have a doubt concerning the Differential Mode in DAQ M series board. In the board's manual is saiing that the voltage limit is -10 to 10V, but somebody knows if this limit is always referenced to ground, or in differential mode is comparing with the +8 channel (ex. for channel 0 - voltage diference between ch0 and ch8).
Thanks in advance, best regards.
Paulo Carmo

Paulo,
differential mode means that you measure the difference between two input channels. The channels used for this on E- and M-series boards is n and n+8. The difference between the channels might go up to +- 10V. So there is no ground reference in this type of measurement.
However, the device has a limited capacity against overvoltage. So if the offset of either of the channels succees a certain value in regard to the ground of the measurement system (the gnd of your PC), you could possibly damage your hardware.
Therefore it is recommend to use "BIAS-resistors" in such cases (or if you simply don't know the offset).
You can find a very good image on possible ) recommended connections in your DAQ-help. Open the DAQmx Help and navigate to DAQmx Help >> Measurement Fundamentals >> Signals >> Analog >> Connecting Analog Input Signals >> Measurement System Types. Just activate that entry (should have a "book" icon) and in the right side, you should see a something like a reference poster. I suggest you to print it out....
hope this helps,
Norbert
[EDIT]: corrected a typo
Message Edited by Norbert B on 02-26-2009 08:03 AM
CEO: What exactly is stopping us from doing this?
Expert: Geometry
Marketing Manager: Just ignore it.

Unable to retrieve clouds on VMM server. Please make sure the server name is correct and try connecting again

I getting this annoying error "Unable to retrieve clouds on VMM server. Please make sure the server name is correct and try connecting again." I've followed the recommended documentation for setting up SPF and Azure using the following:
http://www.hyper-v.nu/archives/mvaneijk/2013/01/installing-and-configuring-system-center-service-provider-foundation/
I've gone thru the troubleshoot steps from the following:
http://blogs.technet.com/b/scvmm/archive/2014/03/04/kb-the-windows-azure-pack-service-management-portal-does-not-retrieve-cloud-settings.aspx
http://social.technet.microsoft.com/forums/windowsazure/en-US/363e7dae-7370-4605-bc8d-b98fa6dc9d8e/unable-to-register-vmm-server
So you don't need to send me those links.
I found a few others which pointed me to the event logs WindowsAzurePack\MGmtSVC-AdminAPi and AdminSite. In these event logs, I see a lot of event ID 12 and 1046. The contents of event id 12 is the following:
Log Name: Microsoft-WindowsAzurePack-MgmtSvc-AdminSite/Operational
Source: Microsoft-WindowsAzurePack-MgmtSvc-AdminSite
Date: 6/19/2014 3:27:55 PM
Event ID: 12
Task Category: (65522)
Level: Error
Keywords: None
User: IIS APPPOOL\MgmtSvc-AdminSite
Computer: usw-azure-01.uswired.com
Description:
Error:ManagementClientException: Resource not found.
<Exception>
<Type>ManagementClientException</Type>
<Message>Resource not found.</Message>
<StackTrace><![CDATA[
at Microsoft.WindowsAzure.Server.Management.ManagementClientBase.<ThrowIfResponseNotSuccessful>d__2b.MoveNext()
at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.WindowsAzure.Server.SystemCenter.AdminExtension.Controllers.SystemCenterAdminController.<GetResourceProviderAsync>d__2e7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.WindowsAzure.Server.SystemCenter.AdminExtension.Controllers.SystemCenterAdminController.<GetAutomationResourceProvider>d__2b6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at lambda_method(Closure , Task )
at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3f.<BeginInvokeAsynchronousActionMethod>b__3e(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.<BeginInvokeAction>b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult)]]></StackTrace>
<HttpContext>
<User IsAuthenticated="true" Name="USWIRED\Administrator" />
<Request>
<RawUrl>/SystemCenterAdmin/GetAutomationResourceProvider</RawUrl>
<UserHostAddress>fe80::c179:19c8:c5f2:7309%12</UserHostAddress>
<Headers>
<Header Key="Cache-Control" Value="no-cache" />
<Header Key="Connection" Value="Keep-Alive" />
<Header Key="Content-Length" Value="2" />
<Header Key="Content-Type" Value="application/json" />
<Header Key="Accept" Value="application/json, text/javascript, */*; q=0.01" />
<Header Key="Accept-Encoding" Value="gzip, deflate" />
<Header Key="Accept-Language" Value="en-US" />
<Header Key="Host" Value="usw-azure-01.uswired.com:30091" />
<Header Key="Referer" Value="https://usw-azure-01.uswired.com:30091/" />
<Header Key="User-Agent" Value="Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko" />
<Header Key="x-ms-client-session-id" Value="c343c29d-20b1-412b-be94-879409205700" />
<Header Key="x-ms-client-antiforgery-id" Value="0crwi2qNk20bMr6C04/vKd4L28WG1nd8JKBdOlCCp+xlph40YeL2oTdmeiTkPmE272S2dqmGQMNo+FElKkG2MdR0Xhq41RU/t8PrFjcG0Vgx4a8dgZLbfKVURo9n84F1XWtJOkTTUK/OeNVWBrK1+w=="
/>
<Header Key="x-ms-client-request-id" Value="dcc427c7-40fc-4fdd-9a70-7622969ff40d-2014-06-19 22:27:55Z" />
<Header Key="X-Requested-With" Value="XMLHttpRequest" />
<Header Key="DNT" Value="1" />
<Cookies>
<Cookie Name="AdminSiteFedAuth" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (2000 characters)" />
<Cookie Name="AdminSiteFedAuth1" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (424 characters)" />
<Cookie Name="__RequestVerificationToken_Admin" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (128 characters)" />
</Cookies>
</Headers>
</Request>
</HttpContext>
</Exception>, operationName:SystemCenterAdmin.GetAutomationResourceProvider, version:, accept language:en-US, subscription Id:, client request Id:dcc427c7-40fc-4fdd-9a70-7622969ff40d-2014-06-19 22:27:55Z, principal Id:USWIRED\Administrator, page request
Id:c343c29d-20b1-412b-be94-879409205700, server request id:
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-WindowsAzurePack-MgmtSvc-AdminSite" Guid="{5E78D550-1384-5A96-C12A-CB6DA7BC6365}" />
<EventID>12</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>65522</Task>
<Opcode>0</Opcode>
<Keywords>0x0</Keywords>
<TimeCreated SystemTime="2014-06-19T22:27:55.971935000Z" />
<EventRecordID>399</EventRecordID>
<Correlation ActivityID="{FAA512AF-E0A9-4F2A-80EF-09F72D2F7918}" />
<Execution ProcessID="3424" ThreadID="2308" />
<Channel>Microsoft-WindowsAzurePack-MgmtSvc-AdminSite/Operational</Channel>
<Computer>usw-azure-01.uswired.com</Computer>
<Security UserID="S-1-5-82-4118156790-2181488624-806685255-2797011695-3958995103" />
</System>
<EventData>
<Data Name="message">ManagementClientException: Resource not found.
<Exception>
<Type>ManagementClientException</Type>
<Message>Resource not found.</Message>
<StackTrace><![CDATA[
at Microsoft.WindowsAzure.Server.Management.ManagementClientBase.<ThrowIfResponseNotSuccessful>d__2b.MoveNext()
at Microsoft.WindowsAzure.Management.TaskSequencer.<>c__DisplayClass1e`1.<RunSequenceAsync>b__1d(Task previousTask)
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.WindowsAzure.Server.SystemCenter.AdminExtension.Controllers.SystemCenterAdminController.<GetResourceProviderAsync>d__2e7.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at Microsoft.WindowsAzure.Server.SystemCenter.AdminExtension.Controllers.SystemCenterAdminController.<GetAutomationResourceProvider>d__2b6.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at lambda_method(Closure , Task )
at System.Web.Mvc.Async.TaskAsyncActionDescriptor.EndExecute(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass3f.<BeginInvokeAsynchronousActionMethod>b__3e(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<>c__DisplayClass39.<BeginInvokeActionMethodWithFilters>b__33()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass4f.<InvokeActionMethodFilterAsynchronously>b__49()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass37.<BeginInvokeActionMethodWithFilters>b__36(IAsyncResult asyncResult)
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<>c__DisplayClass2a.<BeginInvokeAction>b__20()
at System.Web.Mvc.Async.AsyncControllerActionInvoker.<>c__DisplayClass25.<BeginInvokeAction>b__22(IAsyncResult asyncResult)]]></StackTrace>
<HttpContext>
<User IsAuthenticated="true" Name="USWIRED\Administrator" />
<Request>
<RawUrl>/SystemCenterAdmin/GetAutomationResourceProvider</RawUrl>
<UserHostAddress>fe80::c179:19c8:c5f2:7309%12</UserHostAddress>
<Headers>
<Header Key="Cache-Control" Value="no-cache" />
<Header Key="Connection" Value="Keep-Alive" />
<Header Key="Content-Length" Value="2" />
<Header Key="Content-Type" Value="application/json" />
<Header Key="Accept" Value="application/json, text/javascript, */*; q=0.01" />
<Header Key="Accept-Encoding" Value="gzip, deflate" />
<Header Key="Accept-Language" Value="en-US" />
<Header Key="Host" Value="usw-azure-01.uswired.com:30091" />
<Header Key="Referer" Value="https://usw-azure-01.uswired.com:30091/" />
<Header Key="User-Agent" Value="Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko" />
<Header Key="x-ms-client-session-id" Value="c343c29d-20b1-412b-be94-879409205700" />
<Header Key="x-ms-client-antiforgery-id" Value="0crwi2qNk20bMr6C04/vKd4L28WG1nd8JKBdOlCCp+xlph40YeL2oTdmeiTkPmE272S2dqmGQMNo+FElKkG2MdR0Xhq41RU/t8PrFjcG0Vgx4a8dgZLbfKVURo9n84F1XWtJOkTTUK/OeNVWBrK1+w=="
/>
<Header Key="x-ms-client-request-id" Value="dcc427c7-40fc-4fdd-9a70-7622969ff40d-2014-06-19 22:27:55Z" />
<Header Key="X-Requested-With" Value="XMLHttpRequest" />
<Header Key="DNT" Value="1" />
<Cookies>
<Cookie Name="AdminSiteFedAuth" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (2000 characters)" />
<Cookie Name="AdminSiteFedAuth1" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (424 characters)" />
<Cookie Name="__RequestVerificationToken_Admin" Secure="false" Expires="0001-01-01T00:00:00Z" Domain="" Path="/" Value="Redacted (128 characters)" />
</Cookies>
</Headers>
</Request>
</HttpContext>
</Exception></Data>
<Data Name="requestId">
</Data>
<Data Name="subscriptionId">
</Data>
<Data Name="clientRequestId">dcc427c7-40fc-4fdd-9a70-7622969ff40d-2014-06-19 22:27:55Z</Data>
<Data Name="principalId">USWIRED\Administrator</Data>
<Data Name="version">
</Data>
<Data Name="pageRequestId">c343c29d-20b1-412b-be94-879409205700</Data>
<Data Name="acceptLanguage">en-US</Data>
<Data Name="operationName">SystemCenterAdmin.GetAutomationResourceProvider</Data>
</EventData>
</Event>
Event ID 1046 is
Log Name: Microsoft-WindowsAzurePack-MgmtSvc-AdminSite/Operational
Source: Microsoft-WindowsAzurePack-MgmtSvc-AdminSite
Date: 6/19/2014 3:32:56 PM
Event ID: 1046
Task Category: (116)
Level: Error
Keywords: None
User: IIS APPPOOL\MgmtSvc-AdminSite
Computer: usw-azure-01.uswired.com
Description:
Could not connect to Resource Provider. Error: Resource not found.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Microsoft-WindowsAzurePack-MgmtSvc-AdminSite" Guid="{5E78D550-1384-5A96-C12A-CB6DA7BC6365}" />
<EventID>1046</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>116</Task>
<Opcode>0</Opcode>
<Keywords>0x0</Keywords>
<TimeCreated SystemTime="2014-06-19T22:32:56.854137500Z" />
<EventRecordID>413</EventRecordID>
<Correlation ActivityID="{C20DBEAD-388F-4CF4-80FD-21C6419CC2F1}" />
<Execution ProcessID="3424" ThreadID="2768" />
<Channel>Microsoft-WindowsAzurePack-MgmtSvc-AdminSite/Operational</Channel>
<Computer>usw-azure-01.uswired.com</Computer>
<Security UserID="S-1-5-82-4118156790-2181488624-806685255-2797011695-3958995103" />
</System>
<EventData>
<Data Name="errorMessage">Resource not found.</Data>
</EventData>
</Event>
The other thing I notice is that when trying to connect to the VMM. It's trying to use domain\username, yet when I try logging in with domain\username via the SCVMM Console. I get the You cannot access VMM management server (Error ID: 1604).
I'm not sure if this is why I can not add the VMM to WAP. Any help would be appreciated. Thanks
Nick

Hello,
I am not sure about the answer but I guess these steps will solve your problem:
1) Log in to the SPF server by using an account that is a member of the SPF_Admin local group.
2) Open an elevated Windows PowerShell window.
3) Type the following commands, and press Enter after you type each command:
Import-module spfadmin
New-SCSPFTenant -Name Administrator -SubscriptionId 00000000-0000-0000-0000-000000000000
4) Close the WAP Server Management Portal, and then reconnect to it to update all items.

Flash Media Live Encoder won't connect to server

I am trying to configure Flash Media Live Encoder 3.2. I followed the instructions provided by the chatroom I am working for, and it seems to be working until I press the "Start" button on the bottom. When I do that, I get an error message that says
"Problem with Primary Server
Failure to connect to primary server. Please verify that your Server URL and application name are valid and that your internet connection is working and retry."
I get the same message when I hit the "Connect" button on the dashboard.
I have Windows 7, and more than adequate processing power/connection speed. My performance meter says it is only taking up 9% of my CPU, and my connection speed is at least 15, usually more like 30megs.
Any suggestions?

Most of the time is is due to;
Ports or firewall blocking connections
Settings put into FMLE are not correct, check FMS URL for spaces and the Stream key not being what was expected.
Application no present on the server
Good way to debug is to use the Admininistration panel that Adobe provides in the FMS install.

URL Encode and Decode

Hi Experts,
My Oracle Version:
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - Production
PL/SQL Release 11.1.0.7.0 - Production
CORE     11.1.0.7.0     Production
TNS for 32-bit Windows: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
5 rows selected.I got the requirement to check any URL encode and decode methods available in common for O racle and PHP,
Since URL will be encoded in database at the time of retreiving data from database but it will be decoded in PHP without db connection.
Hope my scenario will be clear to you, is any common function available in oracle and php for this process?

but escape, unescape just adds %20 for empty space in the URLwell it does a bit more: it escapes all special characters that should not be in a URL, e.g.
SQL> select utl_url.escape('#^|%µ ') escaped_url from dual
ESCAPED_URL
%23%5E%7C%25%B5%20
1 row selected.Can you give an example of how you want a completely converted url, and why?

RFC, IDOC and secure connection

Hello
Does RFC/IDOC support secure connection like HTTPS?
How the data can be encrypted?

Hi,
As Moorthy Quoted RFC will help you,
This will be help you for encrypying the data.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/b2cce390-0201-0010-5a9f-cca08c75b6ea
/people/kathirvel.balakrishnan2/blog/2006/06/13/sap-php-together-a-simple-base64-encoding-and-decoding
Encrypting data
Regards
Agasthuri Doss

Driver Aeroprobe for MAX and DAQ

Hi eveybody
I am currently using a ATX4K-7 (AEROPROBE) computer, but I'm looking for making a connection between the CPU given by Aeroprobe and DAQ from LabVIEW.
This CPU is used to sense 7-hole pressure probe. And I want to use LabVIEW and DAQ to get speed plots
However, when I try to find a driver to install in LabVIEW, the different choices does not include Aeroprobe (or Althen).
Could someone give me the choices to do, so I can find the right driver to download? or is there a driver that can be used for several CPU.
Thank you in advance
Kind regards

Check with the vendor to see what they might have. Otherwise, you will need specs on the communication interface and then write your own driver.
p.s. How is this related to NI Academic products or did you post to the wrong board?

Current loop measurement and DAQ board

Hi.
I want to acquire some values coming from sensors outputting a 4-20 mA signal.
I designed a solution with SCXI-1125 and E series card.
In other side, somebody -from NI- gave me a price offer with just E-Series DAQ card and a connecting board with resistors (and thus measuring Voltage). I can understand this solution (when the range are compatible).
So, can you explain me what are the benefits if I choose the most expensive solution (SCXI + E-series)compare to the cheapest one (E-series + resistor)
Thanks a lot.
SB.

Basically, the SCXI solution would provide a known level of accurracy and reconfiguration is much easier.
If you used a resistor network to convert the currents into voltages, you would be able to measure these voltages with your E-Series DAQ card with no problem. However, in order to convert these voltages back into the original currents you would have to apply scaling within MAX. This would require that you know each of the resistance values. Since many resistors have a slight tolerance, each resistor would likely have a slightly different value and need to be measured individually. The resistors could possibly change value over time or depending on the environmental temperature.
The signal conditioning solution, on the other hand, can provide you with a
known level of accurracy based on the specifications of the modules used. Additionally, if you ever required a change in your design you would only have to modify the configuration in MAX and no hardware changes would be needed since newer SCXI modules are software configurable.

Omega flowmeter sensor daq connection

Hi all,
I have Omega FTB 1302 flowmeter sensor and NI 6229 DAQ.Sensor has analog output.I dont know how to connect these sensor and daq.please help
Solved!
Go to Solution.

Ok, i went throught the Create New NI-DAQmx Task > Acquire Signal > Counter Input > Edge Count > then it gives me 2 option.I am sending it as a picture in attachment.
Does it matter which one i choose?
I dont understand what you mean the version of DAQmx.I am using NI USB 6229
Regards
Attachments:
pic.png ‏79 KB

New FIOS customer with dropped VOIP calls and Internet connection

I am a new FIOS customer. Got my 50/25 connection a week ago, switching from a TWC 6/1 connection. Ever since the new connection, I've had numerous issues.
My VOIP (Ooma) connection constantly drops and re-connects during conversations
I've had random Internet connection losses, which picks up again after a few minutes
My home alarm starts chirping every once in a while
I've contacted Verizon several times due to these problems and have received varying answers with no resolution of the problem.
The first time I spoke with support, the tech logged into my router and changed the WiFi channel saying that would fix the problem. It didn’t.
The second time I contacted them, the tech ran a bunch of diagnostics and said everything looked fine so it must be an IP address conflict with my devices, because I had a couple devices using static IP addresses. He said everythinf should be DHCP and the last two digits could not be higher than 99 (192.168.1.99). He said FIOS does not support 3-digit numbers at the end.
So I changed all my devices to DHCP and ran some online VOIP tests. It showed a packet loss of 2-5% and MOS score of 1 (which is bad). I was still getting dropped connections, so I disconnected all devices and connected just one computer to the router and tested again. I was still getting packet loss.
Then I called support a third time, this time the tech said there were no 2-digit IP restrictions and that he was detecting there was no UPS baterry backup for the ONT which was probably causing the problem, so he dispatched a field tech to my house.
Today the field tech came (same guy as before), he took one look at the box and said it was too close to my Electric meter and the RF from the meter was causing interference to the FIOS connection and resulting in dropped connection.
He moved the ONT to another location and said that should fix it.
Well, I'm still seeing packet loss and low MOS score when I run the VOIP test.
I don't know how much of what the techs are saying is true and how much is made up stuff.
Has anyone had similar issues and have thoughts on solutions or likely causes for dropped VOIP calls and connections? Could RF be causing this?
I thought going from a 6/1 Cable connection to a 50/25 FIOS connection would be awesome, but this has turned out to be a nightmare, and I may have to switch back to cable if the problem is not resolved.
I would appreciate any help.
Thanks!

Don't know where the packet loss is happening. I ran the VOIP test on myspeed.visualware.com and it shows a packet loss of 2-5% at different times and a MOS score of 1.
The report says MOS should be around 4 for good VOIP calls.
The Verizon tech who came to the house just blamed the electric meter box for RF interference and move the ONT farther away.
My concern is that I'm getting different answers from different techs at Verizon.
Regarding IP addresses. The Router shows a DHCP range from 192.162.1.2 to 192.168.1.254 as available for devices on the network. So, if I need to assign a static IP to a device should I use a number below 99 or above 151?
Thanks!

What is the better way to open and close connection in bean

Hello, may i ask about the best way to open and close the connection?
At the first, the connection code is store in Conn class bean. The JSP page will call a method in Process bean to process the query and update of database. the Process bean is using th Conn to connect to database.
In my process bean, it have a method for each type of sql like select, insert, update, and delete for each tables. Each method will call the Conn to open and close the connection. The jsp page can simply call a method retrieve or update records.
However, when calling the processUpdate method, it is a method that update a group of tables base on the query result of another group of tables and calculation. If I calling the query method in the same bean file, it will open and close the connection many times (more than 1000 times). After open and close the connection several times, the connection to mySQL will be fail.
Currently, i include 2 method in Process that is only calling the Conn to open the connection and close connection. When calling the openConnection method, it will also set the boolean connected in the class to true and call Conn to open connection. When calling the closeConnection method, it will also set the boolean connected in the class to false and call Conn to close connection.
After that, i add some change to the query method which is when the connected is false, it will open the connection by calling the Conn and close the connection themself. If the connected is true, it will not call the Conn to open and close the connection because it already connected to the database.
Now, i when i calling the query method in jsp, it can open the connection and close the connection individually. When i call the processUpdate in the jsp, this method will calling the openConnection before calling the query and calling closeConnection at the end. It not only faster the process(less open and close), it also no cause the connect to mySQL fail error again. However, it also make the coding in the bean file more longer and complex.
Is there have any better solution?

Use connection pooling. This will put the connection management in the hands of the webserver, not your code. Check out this post:
http://forum.java.sun.com/thread.jspa?threadID=741788&messageID=4252932#4252932

Open discoverer report in new browser window and without connections page

Hi All,
We are using Oracle 11g Discoverer 11.1.1.4. Requirement is to open the discoverer report in a new browser window and without connections page.
When we are running discoverer reports with this parameters we unwantedly get the connections page of the discoverer plus which we don't want.
Went through the documentation given in this page and followed it still the issue persists, and i see couple of threads with my issue and no updates.
This excerpt is from the documentation available in the link
" _plus_popup=true and framedisplaystyle=embedded launches Discoverer Plus in a new pop-up browser window that contains the Plus applet embedded in it "
http://www.art2dec.com/documentation/docs/oas10g1012/linux/bi.1012/b13918/urlstart.htm
and Here is what we use to invoke our reports.
http://ipaddress:port/discoverer/plus?cn=cf_123&_plus_popup=TRUE&framedisplaystyle=EMBEDDED&wb=disc_wb_1
Request the forum users from PRO discoverer group to help me out of this issue and expect a good discussion on this.
Thanks in advance

Closing the thread
We were able to achieve by changing the browser settings in the IE 8 Browser. Disabled Tabbed browsing.

I am using Windows 7 Pro, 64 bit on a brand new PC, and cannot connect to the iTunes store using iTunes version 10. HELP!!

Ok, so after purchasing a new computer, with windows 7 pro, 64 bit, I tried downloading the newest iTunes, which at the time was 10.2.1 (i believe). After installation, everything seemed to work, except that iTunes was unable to securely connect to the internet, use home sharing, or validate my computer.
As troubleshooting, I first ran msconfig, and then turned OFF all programs that boot at start up EXCEPT itunes and quicktime. After a restart, i opened itunes again, and got the same result. That led me to believe that iTunes was NOT being blocked by another program on my machine. I am currently running itunes 10.7 successfully on a Windows 7 32 machine at work. Anyhow, for grins, I tried to install version 9 on the new computer, and it installed perfectly, and immediately connected to the itunes store, leading me to believe that there is nothing wrong with my software configuration (not sure if this is a safe assumption or not). I then tried to let iTunes update itself using the automated update function. It tried to update itself to the most current version, then 10.6. Again, iTunes was unable to connect to the iTunes store. I HAVE tried disabling the anti-virus software (AVG), but that made no difference.
I have since gone back and reinstalled iTunes 9. Here's the catch though. When I reinstalled using version 9, I had to redo all my library files. I'm about 1/2 way through my CD's, and now have a substantial library file going. The last time I let iTunes update itself to 10.6, once I realized that it was not going to connect to the store, I uninstalled iTunes, and reinstalled ver. 9. However, when I did this, it told me it could no longer open the library file, because it was a newer .itl or .xml (i believe it was one of those two extensions) library file. At that point, I basically started everything over again, using version 9, and have been importing CD's like a madman at night.
Here are my questions:
1) Is there a way to make a copy of the files that store my library info, so that if my upgrade to ver 10 IS NOT SUCCESSFUL, I can restore ver 9, but still have all of the album art work, playlists (when I import music, I create a playlist with the artists' name, and store things that way), etc. in tact?
2) What else can I try (firewall settings, internet options, etc.) to try and get version to to successfully install? I would really like to get all the benfits of the newer versions.
3) When I tried to get apple tech support before, they wanted me to pay a ridiculous 69$ fee for phone support. I just bought an iphone 5....this should entitle me to a fresh 90 days of phone support, right? The reason I ask here is that I could hardly understand the "tech" that answered the phone when I called for tech support last time, and to be honest, it really ****** me off that they wanted to try and milk me for another 69 bucks....I've purchased every iPhone since the 3Gs came out (pre-ordered at that), and have nearly gone broke purchasing music from their iTunes store....heck, maybe they're doing me me a favor not letting me into the store, huh?
Any help or ideas would be greatly appreciated,
-Brian

Many thanks.
With those symptoms, I'd try the following document:
Apple software on Windows: May see performance issues and blank iTunes Store
(If there's a SpeedBit LSP showing up in Autoruns, it's usually best to just uninstall your SpeedBit Video Accelerator.)

We just added a new printer and bluetooth connection to our iMac. Now iTunes does not recognize our iPads as devices. Have already tried restarting everything. Any other suggestions?

We just added a new printer and bluetooth connection to our iMac. Now iTunes does not recognize our iPads as devices. Have already tried restarting everything. Any other suggestions?

You can try the steps recommended here: http://www.apple.com/support/ipad/assistant/itunes/

Differential Encoder and DAQ Connections

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