This application implements 16 counters using two ni crio 9401s. View online or download national instruments eightslot usb chassis ni cdaq9172 user manual. Returns the national instruments vendor id, 0x1093. Choose from more than 50 hotswappable io modules with integrated signal four generalpurpose 32bit countertimers built into chassis access through digital module stream continuous waveform measurements with patented ni signal streaming technology measure in minutes with nidaqmx software and automatic code generation the ni cdaq9171 is a buspowered, 1 slot ni compactdaq. Our team of certified labview developers specializes in applying national instruments hardware and software to a diverse range of applications in manufacturing test, product development, field data acquisition and nvh. The modular programming method selected allows for easier subsystem replication and support that will provide lower cost of production and maintenance for their future products.
Measurements i daq labview tutorial part 1 youtube. Thus, you can program the ni 9401 for three configurations. For some operations, you can access the counters in the cdaq9178 chassis through the builtin bnc connectors on the. National instruments ni 9401 highspeed digital input. Ni 9401 getting started guide national instruments. The 9401 can be configured for directional line measurements by nibble a nibble is the name given to a group of 4 channels. Ni9401 8channel digital input \ 9411 6channel digital input. Handson lab labview nidaq counters and timers the usb6211 provides two 32bit 80 mhz counterstimers. This module is a configurable computerized io interface for information or yield in 4 bit increases. Due to the serial transfer of data, you cannot use these modules to route timing or triggering signals. Remote monitoring of the whole system is done using an android or ios application wirelessly over a phone or tablet.
A digital module such as the ni 9401, can capture these pulse trains. Operating instructions and specifications ni 9401 8channel, ttl digital inputoutput module. Once you have installed the digital module, you can create a counter task in software for operations such as quadrature encoder, period and frequency measurement, or. Dsub connectivity compactdaq counter compatibility 60 vdc, cat i, channeltoearth isolation the ni 9401 is a bidirectional digital module for any ni compactdaq or compactrio chassis. I would like to take a counter or frequency measurement with an ni 94xx digital input module in a compactriocriousing specialty digital mode, but the data i am reading are all zeros. National instruments eightslot usb chassis ni cdaq9172. Ni 9401 8 ch, 5 vttl highspeed bidirectional c series. Sensors like encoders on wheels, hall effect devices on metal gears and mechanical switches on turnstiles generate pulse trains. Net with functions and tools for spectrum analysis and spectral measurements.
Ni 9401 national instruments digital module apex waves. The national instruments ni 9401, shown in figure 2, is an 8channel, 100 ns. The initial inputoutput configurations can be configured from the module properties dialog box. Create a simple event counter in labview fpga to count rising digital edges. How do you configure the module for counter measurements. Access to the four counters of the compactdaq chassis is available any of the slots of the chassis. Ni equips engineers and scientists with systems that accelerate productivity, innovation, and discovery. Frequency webcasts tutorials, and other howto resources. These counters are accessed through an installed hardwaretimed digital io module sold separately such as the ni 9401 or ni 9402. If i understand correctly, the pnptype does need a sinking input i. Programming data acquisition applications with nidaqmx. Data from the psd and accelerometer are acquired and processed on an ni compactrio nicrio 9074 fpga kit and final measurements of the vibration amplitude and frequency are monitored on gui graphical user interface of a computer. X technologies llc is a national instruments certified alliance partner located in southeast michigan.
View online or download national instruments ni cdaq9191 user manual. Note the guidelines in this document are specific to the ni 9401. Programming with nidaqmx driver requires your to use the. The ni 9401, ni 9402, ni 9411, ni 9421, ni 9422, ni 9423, ni. Use the fpga io node to access the following terminals for this device. You may also like national instruments ni 9401 highspeed digital inputoutput product description national instruments ni 9401 highspeed digital inputoutput condition.
Ni9401 national instruments digital module apex waves. The sensor generates a digital signal with frequency that correlates to the rate of flow of fluid. The ni 9401 digital input, ni 9401 digital output, ni 9401 calibration details, and other specifications are on the ni9401 has free ground shipping and a warranty. We will send the parcel out in 5 days on monday, wednesday, friday. I also have 2 ni 9401s mounted in slots 5 and 6 of my cdaq chassis. The code developed for the variable frequency motor test system can also be reused on future systems that do not require the full hardware and software suite. Ni 9403 operating instructions and specifications 4 caution substitution of components may impair suitability for class i, division 2.
Ni 9401 compactdaq usb module, 8 bidirectional dio channels. Ni signal streaming technology measure in minutes with nidaqmx software and. I am trying to measure two frequency inputs to the ni 9401 with values between 100 to 2 mhz and the software configuration for each is large range counter and frequency selected for them on the counter vi inputs. This toolkit enables you to perform continuous realtime or block nondestructive zoom fft processing on time domain data to compute results such as raw fft, magnitude spectrum, power spectrum, cross spectrum, frequency response, and spectrogram. Each group of four channels channels 03 and channels 47 must be configured to either input or output. The ni 9402 module has free ground shipping and a year warranty, based on new, reconditioned, used, or repair status. Hi, at this link you can find a tutorial describing the three different methods to measure frequency with counters however, you wont have to worry about formulas or parameters, as you simply have to select the proper method, make the correct hardware connections and daqmx will do all the rest. Ni pci 6221 module, 16 inputs, frequencyvoltagequadrature encoderdigital. If the ni 9401 goes into an overcurrent state, by exceeding the specified maximum switching frequency or the. You can use ni digital modules to output your controlling pwm or measure the duty cycle of an existing pwm.
Fpga based selfvibration compensated two dimensional non. Spectral measurements toolkit download national instruments. You can configure the direction of the digital lines on the ni 9401 for input or output by nibble four bits. Ni 9205 operating instructions and specifications 4 caution when module terminals are hazardous voltage live 42. Ni 9401 ok, i have 4 rotary encoders 1600pulsesreve each. Three basic programs will be developed to output 5v from the ni 9401, output frequency from ni 9263 and read an input voltage from ni 9205. This document describes how to use the national instruments 9401 and includes specifications and pin assignments for the ni 9401. Configuring an ni9401 for bidirectional dio by nibble with daqmx using the ni9401 in a crio chassis when using the ni 9401 in a compactrio chassis, the way to configure the module for input or output is as follows. This section provides an overview of nidaqmx and traditional nidaq legacy.
Spectral measurements toolkit is a software addon for labview, c, and. The eight dio channels are grouped in two ports that you can configure independently for input or output. Nidaqmx nirio software compatibility labview labwindowscvi measurement studio signalexpress visual studio visual studio. Measuring frequency with ni 94xx digital input module. Real time analyzer, sound and vibration, structural tests.
Dynamic signal analyzer for sound, vibration and more. Apex waves offers expedited shipping to meet your urgent requirements. Ni 9250 allows softwareselectable input coupling between dc and ac. With reconfigurable io rio technology compactrio only, you can use the labview fpga module to program the ni 9401 for implementing custom. Realtime analyzer, sound and vibration, structural tests. Configuring the ni 9401 for simultaneous inputoutput. Measure in minutes with nidaqmx software and automatic code generation using. Ni pci6221 module, 16 inputs, frequencyvoltagequadrature encoderdigital. Oversampled frequency measurement reference example for labview fpga. Such voltage measurements include signal levels, special equipment. Overview the ni 9401 is an eightchannel, 100 ns bidirectional digital input c series module for any ni compactdaq or compactrio chassis. Ni 9401 8 ch, 5 vttl highspeed bidirectional c series digital io module. In an ni compactdaq chassis, you can use the ni 9403 as only a static software timed digital io module.
Caution to meet radio frequency emission requirements. This document explains how to connect to the ni 9401. For some operations, you can access the counters in the cdaq917879 chassis through the builtin bnc connectors on. The ni 9401 is capable of a 5 mhz switching frequency when using all 8. Rating is available when the video has been rented. Measurement devices include daq devices such as the m series multifunction io mio. Ni measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. Display the counter register value on the leds of an ni. National instruments measurement devices are packaged with nidaq driver software, an extensive library of vis and ansi c functions you can call from your application software, such as labview or labwindowscvi, to program your ni measurement devices. Ni 9401 ni compactrio device drivers help national. This document describes how to use the national instruments 9401 and includes. National instruments eightslot usb chassis ni cdaq9172 pdf user manuals. For example, if the measured source using the ni 9224 has an output.
When you write to an ni 9401 channel, the fpga io node does not automatically enable the channel for output. Net comparison tables product name signal levels number of channels connectivity speed special features ni 9401 ttl 8 25pin dsub 100 ns bidirectional, nibble configurable. Nidaqmx support from data acquisition toolbox hardware. Ni 9401 operating instructions and specifications 10 overcurrent protection overcurrent protection on the ni 9401 allows only a specified amount of current for switching dio channels or sourcing the output load.