USB-200 Serie

MCC’s UL API does provide math/analysis capability. You could obtain that yourself from a 3rd party, specific to your programming language (C#, VB, etc.). Otherwise, you can purchase DASYLab Basic and create a worksheet to collect and analyze the data. Another option is to purchase LabVIEW and develop a VI. You can download a 28-day evaluation version of DASYLab at: https://www.mccdaq.com/dasylab

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The digital output bits are capable of driving up to 24 mA. Our UL for Android includes examples that demonstrate how to use the DAQ functions needed for programming your USB-201. We also have ready to run examples that can be downloaded from the Google Play.

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Hello - When using external clock on the USB-200 Series, one A/D sample is taken per rising edge coming in on AICKI. To sample 2 AI channels at 50 KHz each, a 100 KHz clock signal must be applied. Two of our models that come to mind that will sample all/multiple AI channels for each external clock pulse are: The USB-1608G Series (http://www.mccdaq.com/usb-data-acquisition/USB-1608G-Series.aspx)or the USB-1608FS-PLUS (http://www.mccdaq.com/usb-data-acquisition/USB-1608fs-plus.aspx)

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A pressure sensor or transducer typically converts pressure into an analog voltage signal. The USB-201 supports a fixed +- 10 volt analog input range. So a compatible pressure sensor will support an output voltage somewhere in the +-10 volt range.

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The USB-201 supports 8 single ended +-10 volt input ranges. Voltage signals within a +-10 volt range are directly compatible. All other signals (current) will require signal conditioning of some sort. For data analysis, I would recommend our DASYLab BASIC graphical programming language. DASYLab BASIC has built in FFT analysis modules that would be perfect for your application.

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The USB-201 does not support USB to field wiring isolation, therefore, the grounds are tied to the USB connectors ground pin. But if I may expand the scope of my answer in that the USB-201 uses a multi-layer PCB. For the purpose of better noise immunity each ground has its own plane but eventually come to a common point. It is not recommended that you mix your ground connections. The AGND is reserved for your analog input signals and the GND reserved for all other ground connections. Connecting all your grounds together could cause ground loops which could introduce noise and signal error. For detailed information on proper signal connections. Please refer to our “Signal Connection Guide”. http://www.mccdaq.com/support/DAQ-Signal-Connections.aspx

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Hello Charles - Yes, your order will include software other than the programming libraries that you're referring to. The software application I am referring to is called TracerDAQ. TracerDAQ is an “Out of the Box” virtual instrument application suite with strip chart, oscilloscope, function generator, and rate generator applications. The strip chart allows for logging up to 32K samples per channel per file. You can review the product highlights here: http://www.mccdaq.com/daq-software/tracerdaq.aspx Please contact Sales Engineering if you have any additional questions.

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Hello Jafar2015, The USB-201 will not be able to supply the 11.5 vdc source required for your transmitter. The USB-201 is only capable of supplying a voltage source of 5 volt (100mA). You will need to provide an external excitation source for your transmitter.

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Hello BigRockr - Thank you for your inquiry. When I have a discussion about a counter gate I think of an input that allows you to control when the counter is enabled and when it is disabled. In most cases it’s an external input that requires a TTL signal for control and when the gate is pulled high, the counter is enabled and when its pulled low the counter is disabled. Unfortunately, there is no gate control for the USB-201 counter. The event counter when loaded with a value of “0” will increment by one for each pulse it detects. The counter can be “zeroed” by calling the cLoad() function and reloading it with the value of “0”. If you need a counter with a “Gate” function then please look at our USB-CTR04 or USB-CTR08 counter products at the following link: http://www.mccdaq.com/usb-data-acquisition/USB-CTR-Series.aspx Either of these USB-CTR models will support your requirements.

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Thank you for your inquiry. The USB-201 is a voltage based DAQ device and uses a 12 bit A/D converter. The USB-201 supports a fixed +- 10 volt input range. In order to read a current signal you would have to provide some signal conditioning to convert the current to a voltage. The other important factor is that the USB-201 uses a 12 bit A/D converter and would not be capable of providing enough resolution to read a 0.1 to 100 nA signal.

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Digital inputs must be polled via your software program (there is no automatic state recognition by the USB-201 hardware). Once your program decides the state has changed, then it could take action. In summary, MCC does not offer software to perform this task.

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In December 2013, MCC released UL for Android ver 1.1, which added Android support for all 4 models in the USB-200 series. More information, and a link to the free download, is available on the following webpage: http://www.mccdaq.com/daq-software/universal-library-android.aspx

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The USB-201 has 2 APIs (DAQFlex and UL). For DAQFlex, we did offer a beta Android support that you could consider now (limited support): http://www.mccdaq.com/daq-software/DAQFlex.aspx However, longer term, we plan to support Android only via our UL API. This Android API is released now for the BTH-1208LS model only, but the USB-201 support is expected in the near future. http://www.mccdaq.com/daq-software/universal-library-android.aspx

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Thank you for your inquiry. The USB-201 supports 8 analog input channels with an aggregate sample rate of 100K. The USB-201 also supports 8 digital I/O bits with a maximum update rate that can vary between 33 to 4000 port read/writes. With that said, DAQami only supports analog inputs and can sample all channels at the max sample rate of 100 kS/s divided by the number of channels. If you need to sample both analog and digital inputs then you can use TracerDAQ which is also a free software package offered by MCC. When using TracerDAQ you can sample all 8 analog inputs at the published maximum sample rate of 100 kS/s divided by the number of channels. However, when sampling the digital inputs by themselves or in combination with the analog inputs, the sample rate is reduced to 100 Hz for all inputs. To take advantage of the maximum sample rate for the analog inputs while sampling the digital I/O bits, you could use our Universal Library, ULx for NI LabVIEW, or our DASYLab graphical programming language.

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Hello – Yes, we include our own driver for LabVIEW called ULx. This device (USB-202) is also $40 cheaper than the NI USB-6001.

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Hello - MCC is not familiar with ServiceLab. However, we have tested the latest version of DASYLab (13.0) and it is fully compatible with the USB-202 & USB-205.

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You can use the “External Trigger” on the USB-204 to initiate the start of your ADC conversions. However, the USB-204 does not support a “Retrigger” option which you will need in order for the device to wait for the next trigger event to occur. Our USB-1208FS-Plus supports a trigger and a retrigger mode. On a separate note, current support for MATLAB is through their 32 (R2015). MATLAB is currently working on 64 bit (R2016) support. Please contact MATLAB directly to request support for a specific device at www.mathworks.com/support/contact_us

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What you describe is not a known issue. Does the bottom LED on the USB-204 flash during the acquisition? And does the log file contain valid readings? Be sure that one or more channels are active (check mark in box) for the acquisition, and that one or more active channels are present on the graph. When first launching DAQami, select new configuration and then automatic configuration, which will insure the above settings are correct. If you still have the issue, please contact us at techsupport@mccdaq.com

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Yes, our Universal Library most certainly supports C# (Sharp) and with our library you can continuously stream data at the max sample rate of the USB-204. Please refer to our Knowledge Base article for some product specific examples. One of which supports “Continuous” sampling. http://kb.mccdaq.com/KnowledgebaseArticle50566.aspx

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Yes, the max sample rate of 500kS/sec for the USB-204 is for all enabled channels. The example you give is correct. To calculate your sample rate you must divide the sample rate by the number of channels. Our analog scan function scans a range of A/D channels and stores the samples in an array.

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When an application program does not find the DAQ device, but InstaCal does find it, the following 2 are the known causes: 1) Your hard drive may have multiple copies of the driver file named CBW32.DLL. Search the entire hard drive, including hidden folders, and delete all copies except the one in: C:\Program Files\Measurement Computing\DAQ. 2) Your hard drive may have multiple copies of CB.CFG due to Win7 O/S’s Virtual Store. Search the entire hard drive, including hidden folders. The valid file should be located in: C:\ProgramData\Measurement Computing\DAQ Windows may be put backup of the file in: C:\Users\YourUserAccountName\AppData\Local\VirtualStore\ProgramData\Measurement Computing\DAQ Delete all copies, and then re-run InstaCal. InstaCal will make a new CB.CFG. Confirm it is in (or move it to) the location it should be in.

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The USB-201/204 Series are not HID devices, but are instead of the vendor-specific class. Two driver choices are offered by MCC, the Universal Library and DAQFlex. Both of these driver options have licenses to be utilized (embedded) inside other products.

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MCC is pleased to announce that MathWorks has recently released MATLAB R2017a (64 bit version) which now includes support for MCC devices. For additional details please visit our web site at http://mccdaq.com/daq-software/MATLAB-Support.aspx or call us at 1-800-234-4232 Ext-3.

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Hello Marco - As of November 2014, MATLAB does not have support for our USB-205 DAQ device. All products currently supported by MATLAB's Data Acquisition ToolBox can be found listed here: http://www.mccdaq.com/daq-software/MATLAB-Support.aspx. For assistance in selecting a compatible MATLAB DAQ device, please email Sales Engineering at info@mccdaq.com with details regarding your application.

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Unfortunately, I2C communication is not possible using the USB-201-OEM DAQ device. The USB-201-OEM is only capable of reading in voltage based signals. We have done some testing with semiconductor temperature and humidity devices that output voltages. Please review the specifications for the LM35 (temp) and the HIH-4000 (humidity). Both devices output a mV signal based on the input value.

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Thank you for your inquiry. The USB-202-OEM is capable of concurrent A/D and D/A operation when used with our software. However, Measurement Computing does not develop the MATLAB support that you see on our web page (http://www.mccdaq.com/daq-software/MATLAB-Support.aspx). MATLAB driver development is handled by the Mathworks themselves. Also the USB-202-OEM currently is not officially supported under MATLAB (we’re working with Mathworks to get support released under their Data Acquisition Toolbox in the near future). Would an alternative product similar to the USB-202 that does have MATLAB support work for your application? If so, please check out the USB-1208FS-Plus. http://www.mccdaq.com/usb-data-acquisition/USB-1208FS-Plus.aspx

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Hello Chris, The USB-204 is compatible with our legacy NI LabVIEW drivers but, unfortunately it only supports single ended inputs. Based on your requirements, our USB-1208HS would work with 4 differential inputs and an aggregate sample rate of 1 MS/sec. You can also consider a 16 bit DAQ device like our USB-1608GX which supports 8 differential inputs with an aggregate sample rate of 500 kS/sec. Both the USB-1208HS and the USB-1608GX are compatible with our legacy NI LabVIEW drivers. Please feel free to contact Sales Engineering at 1-800-234-4232 Ext-3 for assistance with product selection.

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