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National Instruments DAQCard-6715 User Manual
Summary of DAQCard-6715
Page 1
Daq analog output series analog output series user manual ni 6711/6713/daqcard-6715, ni 6722/6723, and ni 6731/6733 devices analog output series user manual june 2007 370735e-01.
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Support worldwide technical support and product information ni.Com national instruments corporate headquarters 11500 north mopac expressway austin, texas 78759-3504 usa tel: 512 683 0100 worldwide offices australia 1800 300 800, austria 43 662 457990-0, belgium 32 (0) 2 757 0020, brazil 55 11 3262 3...
Page 3: Important Information
Important information warranty the ni 6711/6713, ni daqcard-6715, ni 6722/6723, and ni 6731/6733 are warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National instruments will, at its option, r...
Page 4: Compliance
Compliance compliance with fcc/canada radio frequency interference regulations determining fcc class the federal communications commission (fcc) has rules to protect wireless communications from interference. The fcc places digital electronics into two classes. These classes are known as class a (fo...
Page 5: Contents
© national instruments corporation v analog output series user manual contents about this manual conventions ...................................................................................................................Ix related documentation ......................................................
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Contents analog output series user manual vi ni.Com minimizing glitches on the output signal ..................................................... 3-3 ao data generation methods......................................................................... 3-3 software-timed generations......................
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Contents © national instruments corporation vii analog output series user manual chapter 5 counters counter triggering ........................................................................................................5-1 start trigger...............................................................
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Contents analog output series user manual viii ni.Com chapter 9 bus interface mite and daq-pnp ..................................................................................................... 9-1 using pxi with compactpci ............................................................................
Page 9: About This Manual
© national instruments corporation ix analog output series user manual about this manual this manual contains information about using the national instruments analog output (ao) series devices with ni-daq 7. X or later. If you have not already installed your device, refer to the daq getting started ...
Page 10: Related Documentation
About this manual analog output series user manual x ni.Com this font is also used for the proper names of disk drives, paths, directories, programs, subprograms, subroutines, device names, functions, operations, variables, filenames, and extensions. Platform text in this font denotes a specific pla...
Page 11
About this manual © national instruments corporation xi analog output series user manual the ni-daq readme for linux lists supported devices and includes software installation instructions, frequently asked questions, and known issues. The c function reference help describes functions and attributes...
Page 12
About this manual analog output series user manual xii ni.Com labview if you are a new user, use the getting started with labview manual to familiarize yourself with the labview graphical programming environment and the basic labview features you use to build data acquisition and instrument control ...
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About this manual © national instruments corporation xiii analog output series user manual from within visual studio .Net. You can generate the configuration code based on your task or channel in measurement studio. Refer to the daq assistant help for additional information about generating code. Yo...
Page 14
About this manual analog output series user manual xiv ni.Com the installed documentation contains the ni-daqmx api overview, measurement tasks and concepts, and function reference. This help is fully integrated into the visual studio .Net documentation. To view the ni-daqmx .Net documentation, go t...
Page 15
About this manual © national instruments corporation xv analog output series user manual technical support on the web for additional support, refer to ni.Com/support or zone.Ni.Com . Note you can download these documents at ni.Com/manuals . Daq specifications and some daq manuals are available as pd...
Page 16: Daq System Overview
© national instruments corporation 1-1 analog output series user manual 1 daq system overview figure 1-1 shows a typical daq system setup, which includes transducers, signal conditioning, cables that connect the various devices to the accessories, the analog output device, and the programming softwa...
Page 17: Daq Hardware
Chapter 1 daq system overview analog output series user manual 1-2 ni.Com daq hardware daq hardware digitizes signals, performs d/a conversions to generate analog output signals, and measures and controls digital i/o signals. Figure 1-2 shows the components common to all ao series devices. The follo...
Page 18
Chapter 1 daq system overview © national instruments corporation 1-3 analog output series user manual buffered waveform generation, and buffered period measurement. It also supports numerous non-buffered operations, such as single pulse or pulse train generation, digital input, and digital output. C...
Page 19: Cables and Accessories
Chapter 1 daq system overview analog output series user manual 1-4 ni.Com for a detailed calibration procedure for ao series devices, refer to the ao waveform calibration procedure for ni-daqmx document by selecting manual calibration procedures at ni.Com/calibration . Cables and accessories ni offe...
Page 20
Chapter 1 daq system overview © national instruments corporation 1-5 analog output series user manual ni 6722 sh68-c68-s (shielded) rc68-68 (unshielded) bnc-2110 cb-68lp cb-68lpr scb-68 tb-68 ni 6723 ( ao 0–7 & digital connector) sh68-c68-s (shielded) bnc-2110 cb-68lp cb-68lpr scb-68 tb-68 ni 6723 (...
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Chapter 1 daq system overview analog output series user manual 1-6 ni.Com custom cabling follow these guidelines if you want to develop your own cable. • route the analog lines separately from the digital lines. • when using a cable shield, use separate shields for the analog and digital halves of t...
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Chapter 1 daq system overview © national instruments corporation 1-7 analog output series user manual • protect signal lines from magnetic fields caused by electric motors, welding equipment, breakers, or transformers by running them through special metal conduits. Refer to the ni developer zone doc...
Page 23
Chapter 1 daq system overview analog output series user manual 1-8 ni.Com • traditional ni-daq (legacy) examples for visual basic are in the following two directories: – ni-daq\examples\visual basic with measurement studio directory contains a link to the activex control examples for use with measur...
Page 24: I/o Connector
© national instruments corporation 2-1 analog output series user manual 2 i/o connector this chapter contains information about the ao series i/o connectors. Note some hardware accessories may not yet reflect the ni-daqmx terminal names. If you are using an ao series device in traditional ni-daq (le...
Page 25
Chapter 2 i/o connector analog output series user manual 2-2 ni.Com figure 2-1. Ni 6711/6731 68-pin ao i/o connector pinout freq out ctr 0 out pfi 9/ctr 0 gate d gnd pfi 6/ao s tart trig pfi 5/ao s amp clk d gnd +5 v d gnd pfi 1 pfi 0 d gnd d gnd +5 v d gnd p0.6 p0.1 d gnd p0.4 ao ext ref ao 1 ao 0 ...
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Chapter 2 i/o connector © national instruments corporation 2-3 analog output series user manual figure 2-2. Ni 6713/daqcard-6715/ni 6733 68-pin ao i/o connector pinout freq out ctr 0 out pfi 9/ctr 0 gate d gnd pfi 6/ao s tart trig pfi 5/ao s amp clk d gnd +5 v d gnd pfi 1 pfi 0 d gnd d gnd +5 v d gn...
Page 27
Chapter 2 i/o connector analog output series user manual 2-4 ni.Com figure 2-3. Ni 6722 68-pin ao i/o connector pinout for a detailed description of each signal, refer to i/o connector signal descriptions . Freq out ctr 0 out pfi 9/ctr 0 gate d gnd pfi 6/ao s tart trig pfi 5/ao s amp clk d gnd +5 v ...
Page 28
Chapter 2 i/o connector © national instruments corporation 2-5 analog output series user manual 68-68-pin extended ao i/o connector pinout the ni 6723 has two 68-pin i/o connectors. Figure 2-4 shows the pin assignments for both connectors on the ni 6723..
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Chapter 2 i/o connector analog output series user manual 2-6 ni.Com figure 2-4. Ni 6723 68-68-pin extended ao i/o connector pinout ao 0–7 & digital connector nc = no connect freq out ctr 0 out pfi 9/ctr 0 gate d gnd pfi 6/ao s tart trig pfi 5/ao s amp clk d gnd +5 v d gnd pfi 1 pfi 0 d gnd d gnd +5 ...
Page 30: Terminal Name Equivalents
Chapter 2 i/o connector © national instruments corporation 2-7 analog output series user manual for a detailed description of each signal, refer to i/o connector signal descriptions . Terminal name equivalents with ni-daqmx, national instruments has revised its terminal names so they are easier to u...
Page 31
Chapter 2 i/o connector analog output series user manual 2-8 ni.Com gpctr0_gate ctr 0 gate gpctr0_out ctr 0 out gpctr0_source ctr 0 source or ctr 0 src gpctr1_gate ctr 1 gate gpctr1_out ctr 1 out gpctr1_source ctr 1 source or ctr 1 src pa#, pb#, pc#... P0.#, p1.#, p2.#... Pfi# pfi # pfi_# pfi # scan...
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Chapter 2 i/o connector © national instruments corporation 2-9 analog output series user manual i/o connector signal descriptions table 2-2 describes the signals found on the i/o connectors. Table 2-2. I/o connector signal descriptions i/o connector pin reference direction signal description ao gnd ...
Page 33
Chapter 2 i/o connector analog output series user manual 2-10 ni.Com pfi 3/ctr 1 source d gnd input pfi 3 —as an input, this pin is a general-purpose input terminal. This is the default input for the ctr1source signal. Output counter 1 source signal —as an output, this pin emits the selected ctr1sou...
Page 34
Chapter 2 i/o connector © national instruments corporation 2-11 analog output series user manual pfi 7 d gnd input pfi 7 —as an input, this pin is a general-purpose input terminal. Pfi 8/ctr 0 source d gnd input pfi 8 —as an input, this pin is a general-purpose input terminal and can also be used to...
Page 35: +5 V Power Source
Chapter 2 i/o connector analog output series user manual 2-12 ni.Com caution connections that exceed any of the maximum ratings of input or output signals on the ao series device can damage the device and the computer. Refer to the specifications document for your device for more information on maxi...
Page 36: Analog Output
© national instruments corporation 3-1 analog output series user manual 3 analog output figure 3-1 shows the analog output circuitry of ao series devices. Figure 3-1. Analog output circuitry block diagram analog output fundamentals analog output circuitry dacs digital-to-analog converters (dacs) con...
Page 37
Chapter 3 analog output analog output series user manual 3-2 ni.Com ao sample clock the dac reads a sample from the fifo with every cycle of the ao sample clock signal and generates the ao voltage. For more information on the ao sample clock signal, refer to the waveform generation timing signals se...
Page 38
Chapter 3 analog output © national instruments corporation 3-3 analog output series user manual reference selection (ni 6711/6713/daqcard-6715 and ni 6731/6733 only) you can connect each dac to the device internal reference of 10 v or to the external reference signal connected to the external refere...
Page 39
Chapter 3 analog output analog output series user manual 3-4 ni.Com software-timed generations with a software-timed generation, software controls the rate at which data is generated. Software sends a separate command to the hardware to initiate each dac conversion. In ni-daqmx, software-timed gener...
Page 40: Analog Output Triggering
Chapter 3 analog output © national instruments corporation 3-5 analog output series user manual continuous generation refers to the generation of an unspecified number of samples. Instead of generating a set number of data samples and stopping, a continuous generation continues until you stop the op...
Page 41
Chapter 3 analog output analog output series user manual 3-6 ni.Com connecting analog output signals figure 3-2 shows how to connect loads to ao 0 and ao 1. Figure 3-2. Analog output connections for ao 0 and ao 1 note ao ext ref is not available on the ni 6722/6723. Waveform generation timing signal...
Page 42
Chapter 3 analog output © national instruments corporation 3-7 analog output series user manual ao start trigger signal you can use the ao start trigger (ao/starttrigger) signal to initiate a waveform generation. If you do not use triggers, you begin a generation with a software command. Using a dig...
Page 43
Chapter 3 analog output analog output series user manual 3-8 ni.Com figure 3-5. Pfi 6/ao start trig timing behavior the pfi 6/ao start trig pin is configured as an input by default. Ao pause trigger signal you can use the ao pause trigger signal (ao/pausetrigger) to mask off samples in a daq sequenc...
Page 44
Chapter 3 analog output © national instruments corporation 3-9 analog output series user manual using an internal source by default, ao/sampleclock is created internally by dividing down the ao/sampleclocktimebase. For more information, refer to the ao sample clock timebase signal section. Several o...
Page 45
Chapter 3 analog output analog output series user manual 3-10 ni.Com the output is an active high pulse. Figure 3-7 shows the timing behavior of the pfi 5/ao samp clk pin when the pin is an output. Figure 3-7. Pfi 5/ao samp clk as an output the pfi 5/ao samp clk is configured as an input by default....
Page 46
Chapter 3 analog output © national instruments corporation 3-11 analog output series user manual ao sample clock timebase signal you can select any pfi or rtsi pin as well as many other internal signals as the ao sample clock timebase (ao/sampleclocktimebase) signal. This signal is not available as ...
Page 47
Chapter 3 analog output analog output series user manual 3-12 ni.Com the maximum allowed frequency for the mastertimebase is 20 mhz, with a minimum pulse width of 23 ns high or low. There is no minimum frequency limitation. The two possible sources for the mastertimebase signal are the internal 20mh...
Page 48: Digital I/o
© national instruments corporation 4-1 analog output series user manual 4 digital i/o ao series devices contain eight lines of bidirectional dio signals that support the following features: • direction and function of each terminal, individually controllable • high-speed digital waveform generation ...
Page 49: Static Dio
Chapter 4 digital i/o analog output series user manual 4-2 ni.Com static dio each dio line can be used as a static di or do line. You can use static dio lines to monitor or control digital signals. Each dio can be individually configured as a digital input (di) or digital output (do). All samples of...
Page 50
Chapter 4 digital i/o © national instruments corporation 4-3 analog output series user manual using an internal source to use do/sampleclock with an internal source without making any external connections, specify the signal source and the polarity of the signal. The source can be one of the followi...
Page 51
Chapter 4 digital i/o analog output series user manual 4-4 ni.Com di sample clock signal (ni 6731/6733 only) use the di sample clock (di/sampleclock) signal to sample the p0. Terminals and store the result in the di waveform acquisition fifo. Because there is no dedicated internal clock for timed di...
Page 52: I/o Protection
Chapter 4 digital i/o © national instruments corporation 4-5 analog output series user manual i/o protection to minimize the risk of damaging the dio and pfi terminals of your device, follow these guidelines. • if you configure a pfi or dio line as an output, do not connect it to any external signal...
Page 53
Chapter 4 digital i/o analog output series user manual 4-6 ni.Com connecting digital i/o signals the dio signals, p0., are referenced to d gnd. You can individually program each line as an input or output. Figure 4-2 shows p0. Configured for digital input and p0. Configured for digital output. Digit...
Page 54
Chapter 4 digital i/o © national instruments corporation 4-7 analog output series user manual getting started with dio applications in software you can use the ao series device in the following digital i/o applications. • static digital input • static digital output • digital waveform generation • d...
Page 55: Counters
© national instruments corporation 5-1 analog output series user manual 5 counters figure 5-1 shows a counter on the ao series device. Figure 5-1. Counter block diagram counters 0 and 1 each have two inputs (source and gate), one output, and two software registers, which are used to perform differen...
Page 56: Counter Timing Signals
Chapter 5 counters analog output series user manual 5-2 ni.Com pause trigger you can use pause triggers in edge counting and continuous pulse generation applications. For edge counting acquisitions, the counter stops counting edges while the external trigger signal is low and resumes when the signal...
Page 57
Chapter 5 counters © national instruments corporation 5-3 analog output series user manual but with the source signal inverted and referenced to the falling edge of the source signal, applies when you program the counter to count falling edges. The gate input timing parameters are referenced to the ...
Page 58
Chapter 5 counters analog output series user manual 5-4 ni.Com figure 5-3 shows the timing requirements for the ctr0source signal. Figure 5-3. Ctr0source timing requirements the maximum allowed frequency is 20 mhz, with a minimum pulse width of 10 ns high or low. There is no minimum frequency. For m...
Page 59
Chapter 5 counters © national instruments corporation 5-5 analog output series user manual figure 5-4 shows the timing requirements for the ctr0gate signal. Figure 5-4. Ctr0gate timing requirements counter 0 internal output signal the counter 0 internal output (ctr0internaloutput) signal is the outp...
Page 60
Chapter 5 counters analog output series user manual 5-6 ni.Com • ctr0internaloutput can drive any of the rtsi signals to control the behavior of other devices in the system. • ctr0internaloutput drives the ctr 0 out pin to trigger or control external devices. • ctr0internaloutput can drive other int...
Page 61
Chapter 5 counters © national instruments corporation 5-7 analog output series user manual counter 1 source signal you can select any pfi as well as many other internal signals as the counter 1 source (ctr1source) signal. The ctr1source signal is configured in edge-detection mode on either rising or...
Page 62
Chapter 5 counters analog output series user manual 5-8 ni.Com figure 5-8 shows the timing requirements for the ctr1gate signal. Figure 5-8. Ctr1gate timing requirements counter 1 internal output signal the counter 1 internal output (ctr0internaloutput) signal is the output of counter 1. This signal...
Page 63
Chapter 5 counters © national instruments corporation 5-9 analog output series user manual • ctr1internaloutput drives the ctr 1 out pin to trigger or control external devices. • ctr1internaloutput can drive other internal signals. Refer to device routing in max in the ni-daqmx help or the labview h...
Page 64
Chapter 5 counters analog output series user manual 5-10 ni.Com figure 5-10 shows the timing requirements for mastertimebase. Figure 5-10. Mastertimebase timing requirements getting started with counter applications in software you can use the ao series device in the following counter-based applicat...
Page 65: Programmable Function
© national instruments corporation 6-1 analog output series user manual 6 programmable function interfaces (pfi) the 10 programmable function interface (pfi) pins allow timing signals to be routed to and from the i/o connector of a device. Inputs an external timing signal can be input on any pfi pin...
Page 66: Outputs
Chapter 6 programmable function interfaces (pfi) analog output series user manual 6-2 ni.Com outputs you can also individually enable each pfi pin to output a specific internal timing signal. For example, if you need the counter 0 source signal as an output on the i/o connector, software can turn on...
Page 67: Digital Routing
© national instruments corporation 7-1 analog output series user manual 7 digital routing the digital routing circuitry manages the flow of data between the bus interface and the acquisition subsystems (ao circuitry, digital i/o, and the counters). The digital routing circuitry uses fifos (if presen...
Page 68
Chapter 7 digital routing analog output series user manual 7-2 ni.Com • counter 0 gate signal • counter 0 up/down signal • counter 1 source signal • counter 1 gate signal • counter 1 up/down signal • master timebase signal you also can control these timing signals with signals generated internally t...
Page 69: Connecting Timing Signals
Chapter 7 digital routing © national instruments corporation 7-3 analog output series user manual many of these timing signals are also available as outputs on the pfi pins. Note the master timebase signal can only be accepted as an external signal over rtsi. For more information on the master timeb...
Page 70: Routing Signals In Software
Chapter 7 digital routing analog output series user manual 7-4 ni.Com figure 7-2. Connecting pfi 0 and pfi 2 to two pfi pins routing signals in software table 7-1 lists the basic functions you can use to route signals. Note for more information about routing signals in software, refer to the ni-daqm...
Page 71: Real-Time System Integration
© national instruments corporation 8-1 analog output series user manual 8 real-time system integration bus (rtsi) ni-daq devices use the real-time system integration (rtsi) bus to easily synchronize several measurement functions to a common trigger or timing event. In a pci system, the rtsi bus cons...
Page 72
Chapter 8 real-time system integration bus (rtsi) analog output series user manual 8-2 ni.Com figure 8-1 shows the pci rtsi bus signal connection. Figure 8-1. Pci rtsi bus signal connection rt s i b us connector s witch rt s i s witch rt s i trigger 7 trigger daq- s tc ctr0 s o u rce ctr0g a te ctr0...
Page 73: Device and Rtsi Clocks
Chapter 8 real-time system integration bus (rtsi) © national instruments corporation 8-3 analog output series user manual figure 8-2 shows the pxi rtsi bus signal connection. Figure 8-2. Pxi rtsi bus signal connection refer to the timing signal routing section of chapter 7, digital routing , for a d...
Page 74
Chapter 8 real-time system integration bus (rtsi) analog output series user manual 8-4 ni.Com source. If you configure the device to use the internal timebase, you also can program the device to drive its internal timebase over the rtsi bus to another device that is programmed to receive this timeba...
Page 75: Bus Interface
© national instruments corporation 9-1 analog output series user manual 9 bus interface each ao series device is designed on a complete hardware architecture that is deployed on either the pci or pxi platform. Using ni-daq driver software, you have the flexibility to change hardware platforms and op...
Page 76: Data Transfer Methods
Chapter 9 bus interface analog output series user manual 9-2 ni.Com caution damage can result if these lines are driven by the sub-bus. Ni is not liable for any damage resulting from improper signal connections. Data transfer methods there are three primary ways to transfer data across the pci bus: ...
Page 77: Triggering
© national instruments corporation 10-1 analog output series user manual 10 triggering a trigger is a signal that causes a device to perform an action, such as starting an acquisition. You can program your daq device to generate triggers on: • a software command • a condition on an external digital ...
Page 78
Chapter 10 triggering analog output series user manual 10-2 ni.Com you can also program your daq device to perform an action in response to a trigger from a digital source. The action can affect: • analog output generation • counter behavior for more information, refer to the analog output triggerin...
Page 79: Device-Specific Information
© national instruments corporation a-1 analog output series user manual a device-specific information this appendix includes device-specific information about the following analog output devices: • ni 6711/6713 • ni daqcard-6715 • ni 6722/6723 • ni 6731/6733 ni 6711/6713 the following sections conta...
Page 80
Appendix a device-specific information analog output series user manual a-2 ni.Com analog output (ni 6711/6713) the ni 6711 has four channels of voltage output at the i/o connector, and the ni 6713 has eight channels of voltage output at the i/o connector. The reference for the ao circuitry is softw...
Page 81
Appendix a device-specific information © national instruments corporation a-3 analog output series user manual block diagram (ni 6711/6713) figure a-1 shows a block diagram of the ni 6711/6713. Figure a-1. Ni 6711/6713 block diagram timing pfi / trigger i/o connector rt s i b us pci/pxi b us digit a...
Page 82: Ni Daqcard-6715
Appendix a device-specific information analog output series user manual a-4 ni.Com ni daqcard-6715 the following sections contain more information on the ni daqcard-6715. Features (ni daqcard-6715) the ni daqcard-6715 is a plug-and-play, analog output (ao), digital i/o (dio), and timing i/o (tio) de...
Page 83
Appendix a device-specific information © national instruments corporation a-5 analog output series user manual block diagram (ni daqcard-6715) figure a-2 shows a block diagram of the ni daqcard-6715. Figure a-2. Ni daqcard-6715 block diagram d a t a timing pfi / trigger i/o connector pcmcia b us dig...
Page 84: Ni 6722/6723
Appendix a device-specific information analog output series user manual a-6 ni.Com ni 6722/6723 the following sections contain more information on the ni 6722/6723. Features (ni 6722/6723) the ni 6722/6723 are plug-and-play, analog output (ao), digital i/o (dio), and timing i/o (tio) devices for pci...
Page 85
Appendix a device-specific information © national instruments corporation a-7 analog output series user manual block diagram (ni 6722/6723) figure a-3 shows a block diagram of the ni 6722/6723. Figure a-3. Ni 6722/6723 block diagram i/o connector 1 3 -bit dac ao d a t a b us 1 3 -bit dac 1 3 -bit da...
Page 86: Ni 6731/6733
Appendix a device-specific information analog output series user manual a-8 ni.Com ni 6731/6733 the following sections contain more information on the ni 6731/6733. Features (ni 6731/6733) the ni 6731/6733 are plug-and-play, analog output (ao), digital i/o (dio), and timing i/o (tio) devices for pci...
Page 87
Appendix a device-specific information © national instruments corporation a-9 analog output series user manual block diagram (ni 6731/6733) figure a-4 shows a block diagram of the ni 6731/6733. Figure a-4. Ni 6731/6733 block diagram timing pfi / trigger i/o connector rt s i b us pci/pxi digit a l i/...
Page 88: Troubleshooting
© national instruments corporation b-1 analog output series user manual b troubleshooting this section contains some common questions about ao series devices. If your questions are not answered here, refer to the national instruments knowledgebase at ni.Com/kb . It contains thousands of documents th...
Page 89: Update Rate
Appendix b troubleshooting analog output series user manual b-2 ni.Com in this case, f a equals 1.99 khz, according to the following equation: the smallest frequency change that you can generate in this case is approximately 10 hz. Power-on states of the analog output lines i have some motors connec...
Page 90: Technical Support and
© national instruments corporation c-1 analog output series user manual c technical support and professional services visit the following sections of the national instruments web site at ni.Com for technical support and professional services: • support —online technical support resources at ni.Com/s...
Page 91
Appendix c technical support and professional services analog output series user manual c-2 ni.Com • calibration certificate —if your product supports calibration, you can obtain the calibration certificate for your product at ni.Com/calibration . If you searched ni.Com and could not find the answer...
Page 92: Glossary
© national instruments corporation g-1 analog output series user manual glossary symbol prefix value n nano 10 –9 μ micro 10 – 6 m milli 10 –3 k kilo 10 3 m mega 10 6 symbols – negative of, or minus. Ω ohms. % percent. ± plus or minus. + positive of, or plus. A a amperes—the unit of electric current...
Page 93
Glossary analog output series user manual g-2 ni.Com ao analog output. Ao 0 analog channel 0 output signal. Ao 1 analog channel 1 output signal. Ao gnd analog output ground signal. Asic application-specific integrated circuit—a proprietary semiconductor component designed and manufactured to perform...
Page 94
Glossary © national instruments corporation g-3 analog output series user manual correlated dio a feature that allows you to clock digital i/o on the same clock as analog i/o. Counter/timer a circuit that counts external pulses or clock pulses (timing). D d/a digital-to-analog. Dac digital-to-analog...
Page 95
Glossary analog output series user manual g-4 ni.Com dma direct memory access—a method by which data can be transferred to/from computer memory from/to a device or memory on the bus while the processor does something else. Dma is the fastest method of transferring data to/from computer memory. Dnl d...
Page 96
Glossary © national instruments corporation g-5 analog output series user manual i ol current, output low. Irq interrupt request. L led light-emitting diode—a semiconductor light source. Lsb least significant bit. M m meter. Measurement device daq devices such as the e series multifunction i/o (mio)...
Page 97
Glossary analog output series user manual g-6 ni.Com ni-daqmx the latest ni-daq driver with new vis, functions, and development tools for controlling measurement devices. The advantages of ni-daqmx over earlier versions of ni-daq include the daq assistant for configuring channels and measurement tas...
Page 98
Glossary © national instruments corporation g-7 analog output series user manual pxi pci extensions for instrumentation—pxi is an open specification that builds off the compactpci specification by adding instrumentation-specific features. R rms root mean square. Rse referenced single-ended mode—all ...
Page 99
Glossary analog output series user manual g-8 ni.Com t task ni-daqmx—a collection of one or more channels, timing, and triggering and other properties that apply to the task itself. Conceptually, a task represents a measurement or generation you want to perform. Terminal count the highest value of a...
Page 100
Glossary © national instruments corporation g-9 analog output series user manual vi, virtual instrument 1. A combination of hardware and/or software elements, typically used with a pc, that has the functionality of a classic stand-alone instrument. 2. A labview software module (vi), which consists o...
Page 101: Index
© national instruments corporation i-1 analog output series user manual index a accessories, 1-4 devices, 1-4 field wiring considerations, 1-6 analog output circuitry, 3-1 connecting analog output signals, 3-6 minimizing glitches, 3-3 ni 6711/6713, a-2 ni 6722/6723, a-6 ni 6731/6733, a-8 ni daqcard-...
Page 102
Index analog output series user manual i-2 ni.Com dio applications, 4-7 direct memory access (dma), 9-2 do sample clock, 4-2 documentation (ni resources), c-1 drivers (ni resources), c-1 e examples (ni resources), c-1 external reference, 3-6 f features ni 6711/6713, a-1 ni 6722/6723, a-6 ni 6731/673...
Page 103
Index © national instruments corporation i-3 analog output series user manual ni-daq documentation, x device documentation browser, xiv ni-daqmx base documentation, xi ni-daqmx for linux documentation, x p pfi, 6-1 pinouts 68-68-pin extended ao, 2-5 68-pin ao, 2-1 ni 6711 (figure), 2-2 ni 6713 (figu...