Measurement studio 2012 serial

Please point in some direction? The UL does include both bit and bit. For other brand compilers, you likely need to use a utility from them to create a. If you forward your serial number to info mccdaq. However, as long as you can call in to a Windows 32bit API, you should have no problem interfacing with our Universal Library.

I have to use my own linearization as I am working with non-standard thermocouples. I am shorting one channel to get the temperature of the connector block, which works fine, but is of Course not as precise as using the direct CJC sensor temperature value.

Also I am loosing one channel. Your advice is very welcome. However, beginning with the recently released version UL 6. Historically this setting is made manually in InstaCal, since it affects the field wiring, and is unlikely to be changed often.

I was wondering if I could write a code to convert the analog voltage input to current? I want to use this data logger to monitor the DC current of our biosensor. Because of this you cannot just simply develop software code to allow the USB to measure a current signal. To read your biosensor you will need some type of external signal conditioning.

Now assuming that your biosensor outputs a mA signal you could use a simple ohm current shunt resistor across one of the differential inputs. This will create a volt voltage drop across the shunt resistor. You can then write some software code to scale the voltage signal back into engineering units.

Any low cost suggestions. The rate at which digital inputs can be sampled is hardware limited, so a new version of our driver will not help. A different model to consider is the USBG, as its digital inputs can be read at up to times per second. Windows compiler support is not thrilling mostly.

I suspect this would be true for MinGW. I could contact Warren Jasper, the Linux driver writer on this as well. I was looking at some of the sample code in the Universal Library and noticed that all of them have a timer in a loop pulling the hardware for the data. Is there a way to connect to the hardware and listen to events like when a port goes high?

Instead of the loop an pull method? They cannot notify the PC of a certain data change or pattern match. But still, I can't read e. First, try our non-scanning example ULDI01 to make sure there is no electric issue i. Then move on to the higher speed scanning example ULDI They can tolerate 5V logic but avoid using pull resistors up to 5V.

The cbw Is there any way to load the library faster or to load only the functions which are used? I need only few func. Hello Pavel - the new version of the Universal Library Version 6. That's good news. Please let me know as soon as new UL version will be released. Thank you. Hello Pavel - We have performed additional testing, and the combined load and initialization time can be as long was what you reported. As a result, we expect to be able to reduce this to well under 1 second in an upcoming UL version.

The delay applies before reaching InitInstance in my application and it is the same even when I temporary uninstall the board's driver. When I remove all universal library functions and cbw I think the source of this delay is in slow loading cbw Regards Pavel. Hello Pavel - 7. Perhaps your program is trying to call a function in the DLL as the program is loading. The first time a function that accesses DAQ hardware in the DLL is called, there is hardware initialization that is performed, which takes about seconds.

In summary, there are probably 2 delays at work here. I will start a funded engine test project shortly. I designed and built my own IO interface. I want to purchase various products from MSC. A possible workaround would be to use the Implib. How ca. So software paced reads must be used. But the Function Dout working for all 3 port. The function cbDBitOut can be a bit confusing but it does works for all three ports. Please refer to our knowledgebase article below for help in clarifying how the cbDBit functions works.

You first need to configure the direction for all three ports, i. After the ports have been configured you can then run the cbDBitOut function. Please contact technical support if you have any additional questions. I want use a USB modulus with different channel to mesure a lot of physical parameters as motor speed, temperature, flowmeter, each of measurement is made in a specific Thread. Second question, if I use two different modulus exemple: one HS et.

Yes it is thread safe but an annoying problem is the inability to use the UL in multiple applications on the same system. The idea is that my wrapper initiates the UL one time upon the first caller then closes it when the last application closes regardless of order. A bit tricky for sure! It is unfortunate that UL does not handle this!!! The recent release of UL version 6. Multiple different DAQ devices can be accessed from one program, and separate threads in the program can be used.

Also separate threads can access the same DAQ device. Note that one specific scenario is not supported: Multiple programs running on the PC, that each access the Universal Library … not even if each program accesses a different DAQ device.

Using Visual Studio Express I have tried compiling and running C. I just. Be sure to re-boot after installing the UL. What is the correct way to determine the already plugged modules? CFG must not be actual -getting from hardware-manager and compare to cb. Running Instacal and then start my program is not very user-friendly UL version 6.

If an application is written to take advantage of this new Device Discovery capability, running InstaCal to discover devices is no longer required. Hi Chris — Thank you for your feedback. Plug and Play meens, I get a e. USBFS out of a tray connect it and run my software.

Another user has a different module. Also I cannot manipulate the CF. Another point is the missing object oriented way of the UL. MccBoard i If dummy i. MccBoard i End If If dummy i. Regards Chris. Hello Chris - To achieve your goal, the following is recommended: It Is assumed that InstaCal was run prior by the user, such that all boards had been recognized and that InstaCal has already added them to its board list stored in CB.

If the voltages and currents that you are measuring are sinusoidal, then you can use a simple formula to that converts P-P voltage to Vrms. If the values are not sinusoidal, then the calculation is more complex. Naturally, the NI measures only voltage, so you must either use a current transformer, sense resistor, or some other sensor to convert current to a voltage.

Once you have converted the current to a voltage, you can apply appropriate calibration multiply by some constant so that you can use the actual current value that you measure.

Thanks Dick Grier But when i used 'For 'sample' and Next 'sample' the program can't run because an error.. So, i try to change 'sample' to 'n' the program run but the value of vrms are equal to value of sample in dat array.

So this is the real example of measure voltage from measurement studio that not modified yet. Select the physical channel corresponding to where your signal is input ' on the DAQ device. Enter the minimum and maximum voltage values.

Note: For better accuracy, ' try to match the input range to the expected voltage level of the ' measured signal. Set the rate of the acquisition. Note: The rate should be at least twice ' as fast as the maximum frequency component of the signal being acquired.

If this error ' occurs, try reducing the rate or increasing the number of samples to ' read per iteration. Create a new analog input task. Create an analog input voltage channel. Set up the timing for the acquisition. In this example, we use the DAQ ' device's internal clock to continuously acquire samples. Call AnalogMultiChannelReader. BeginReadWaveform to install a callback ' and begin the asynchronous read operation.

Inside the callback, call AnalogMultiChannelReader. EndReadWaveforme to ' retrieve the data from the read operation. BeginReadWaveform if ' using Framework 1. Dispose the Task object to clean-up any resources associated with the ' task. Handle any DaqExceptions, if they occur. To avoid this problem, ' you must add an additional manifest to the application that specifies the ' privileges required to run ' the application. The manifest file is named ' [ExampleName].

Note: ' The manifest file is not provided with examples for Visual Studio. NET Object, ByVal e As System. EventArgs Handles startButton. Click AxCWGraph1. Volts myTask. ConfigureSampleClock "", Convert. ToDouble rateNumeric. Rising, SampleQuantityMode. ContinuousSamples, ' Verify the Task myTask. Control TaskAction.

NET Framework 2. BeginReadWaveform Convert. ToInt32 samplesPerChannelNumeric. Value , analogCallback, myTask Else ' For. NET Framework 1. BeginReadWaveformDouble Convert. Show exception. EventArgs Handles stopButton. Dispose stopButton. Show ex. If waveform. PlotY mydata I am confused to use the values of sample in data array because its changing not fixed.

So,how to the sample in data array to measure Vrms. Count data. Clear data. GetType "System. Double" dataColumn currentChannelIndex. PhysicalName Next data. The code fragment that I used in my replay was based on what you posted.

The correct way to calculate RMS is:. RootMeanSquared 'I just wanted to double-check the math. Length End Function. This is from a production application using Measurement Studio , so I am sure that it is correct.

Thanks Dick.. The Buffer means the sample in data arrray or what? Pass that array to the CalcRMS function, and the return value is the calculated RMS value point-wise integration over the set of samples. This calculation is valid for any waveform shape, and is not limited to a sinusoidal AC waveform.

How to link Main form GUI to another form? National Instruments Measurement Studio 7 Enterprise. The following table lists the Measurement Studio license types. When I install Measurement Studio on a development computer, activate my Standard Development serial number and license that PC over the. NI Measurement Studio v With full support for Visual Studio and.

NET 4. I had to install Visual Studio on. An amateur radio transceiver to manipulate the device's internal memory via RS serial data strings. NI Measurement Studio Enterprise 8. Measurement Studio is an integrated suite of classes and controls for test,measurement, and automation applications in Microsoft Visual Studio 2. To activate Measurement Studio, you need your serial.