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DAQCard-6062E User Manual

1. Voltage p Calibration Z N REF DACs o 8 Analog 12 Bit ete p Saeco p Sampling Lp ADC 8 Muxes J gt Switches Gane HES ge Calibration Dither 4 had o E n Mux Circuitry o g g EEPROM 2 D Panona Al Control a S c ry Q Trigger Level 2 Oo fo Be Analog IRQ lt Oo DACs O Trigger oO Trigger Circuitry lt a lt _ gt T T E r Analog Input Interrupt 4 PFI Trigger X Trigger Timing Control Request Analog teepRom oO RENSET E 1 Me ene s d Input Control counted Sa lt Control 1 1 ounter Timing Timing I O DAQ STC Interface DAQ PCMCIA ns ge PPE ee FYR Analog Output RTSI Bus DAQ STC Analog Bus 4 Digital O 8 X Digital VO Timing Control Interface interface Control terface AN lt DACO AO Control lt 4 _ KX DAC1 V 4 DAC FIFO 4 NZ 6 Calibration DACs Figure 3 1 DAQCard 6062E Block Diagram National Instruments Corporation 3 1 DAQCard 6062E User Manual Chapter 3 Hardware Overview Analog Input Input Mode DAQCard 6062E User Manual The AI section of the DAQCard 6062E is software configurable You can select different AI configurations through application software designed to control the DAQCard 6062E The following sections describe in detail e
2. LSBs LSBs 6 0 6 0 4 0 4 0 2 0 ay 20 P 0 04 0 0 J 2 0 2 0 4 0 m 4 0 6 0 6 0 0 100 200 300 400 500 0 100 200 300 400 500 a Dither Disabled No Averaging b Dither Disabled Average of 50 Acquisitions LSBs LSBs 6 0 6 0 4 0 4 0 2 0 2 0 0 0 0 0 2 0 2 0 Ed 4 0 4 0 6 0 6 0 0 100 200 300 400 500 0 100 200 300 400 500 c Dither Enabled No Averaging d Dither Enabled Average of 50 Acquisitions Figure 3 2 Dither Multiple Channel Scanning Considerations The DAQCard 6062E can scan multiple channels at the same maximum rate as the single channel rate however notice the settling times No extra settling time is necessary between channels as long as the gain is constant and source impedances are low Refer to Appendix A Specifications for a complete listing of settling times Settling times can increase when scanning channels with various gains When the PGIA switches to a higher gain the signal on the previous channel may be well outside the new smaller range For instance suppose a 4 V signal is connected to channel 0 and a mV signal is connected to channel 1 and suppose the PGIA is programmed to apply a gain of one to channel 0 and a gain of 100 to channel 1 When the multiplexer switches to channel and the PGIA switches to a gain of 100 the new full scale range is
3. National Instruments Corporation 4 5 DAQCard 6062E User Manual Chapter 4 Signal Connections Table 4 3 1 0 Signal Summary for the DAQCard 6062E Continued Impedance Protection Sink Rise Input Volts Source mA Time Signal Name Drive Output On Off mA at V at V ns Bias VCC DO 0 45 Q Short circuit 250 at Vec to ground DIO lt 0 7 gt DIO Vec 0 5 13 at 24 at 0 4 1 1 50 kQ pu Vec 0 4 SCANCLK DO 3 5 at 5 at 0 4 1 5 50 kQ pu Ve 0 4 EXTSTROBE DO 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFIO TRIG1 ADIO 10 kQ Vec 0 5 35 3 5at 5 at 0 4 1 5 50 kQ pu2 Vec 0 4 PFI1 TRIG2 DIO Vec 0 5 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI2 CONVERT DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 KQ pu Voc 0 4 PFI3 GPCTR1_SOURCE DIO Vec 0 5 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI4 GPCTR1_GATE DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 kQ pu Voc 0 4 GPCTR1_OUT DO 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFIS5 UPDATE DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI6 WFTRIG DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI7 STARTSCAN DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI8 GPCTRO_SOURCE DIO Vec 0 5 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 PFI9 GPCTRO_GATE DIO Vec 0 5 3 5 at 5 at 0 4 1 5 50 kQ pu Vec 0 4 GPCTRO_OUT D
4. Each input should remain within 11 V of ground 25 V powered on 15 V powered off ACH lt 0 15 gt AISENSE 8 192 samples Interrupts programmed I O 512 words Aat 0 5 LSB typ dithered 1 5 LSB max undithered 0 9 1 5 LSB max 12 bits guaranteed 16 uV max 4 mV max 1 mV max Postgain error before calibration 265 mV max Gain error relative to calibration reference After calibration gain 1 Before calibration W W W 1 M Gain 1 with gain error adjusted to 0 at gain 1 A 2 eee 0 02 of reading max ets 2 5 of reading max a 0 02 of reading max ni com Appendix A Specifications Amplifier Characteristics Input impedance Normal powered 00 0 0 eee 100 GQ in parallel with 100 pF Powered OH surrender 820 Q min Overloads 820 Q min Input bias current 1 scenerne 200 pA Input offset current 100 pA CMRR all input ranges DC to 60 Hz Gan SV oinaren 85 dB GUNS Zeena aaa 95 dB Gan 2D onan ih ci 100 dB Dynamic Characteristics Bandwidth Small signal 3 dB sesoses 1 3 MHz Large signal 1 THD 1 300 kHz Settling time for full scale step Accuracy 0 012 0 024 Gain 0 5 LSB 1 LSB 0 5 2 5 Us typ 3 us max 4 us max Accuracy values valid for source impedances lt 1 KQ Refer to the Multiple Channel Scanning Considerations section of Chapter 3 Hardware Overview for more information Syste
5. National Instruments Corporation Glossary to modify the glitches in a signal in order to make them less disruptive root mean square referenced single ended resistive temperature detector a metallic probe that measures temperature based upon its coefficient of resistivity real time system integration bus the National Instruments timing bus that connects DAQ boards directly by means of connectors on top of the boards for precise synchronization of functions seconds samples scan counter scan clock signal controls how often a scan is initialized is regulated by the STARTSCAN signal reciprocal of the scan interval Signal Conditioning eXtensions for Instrumentation the National Instruments product line for conditioning low level signals within an external chassis near sensors so only high level signals are sent to DAQ boards in the noisy computer environment single ended a term used to describe an analog input that is measured with respect to a common ground time required for an amplifier relays or other circuits to reach a stable mode of operation scan interval counter G 9 DAQCard 6062E User Manual Glossary SI2 SISOURCE STARTSCAN T THD TIO tore DAQCard 6062E User Manual sample interval counter SI counter clock signal start scan signal terminal count signal delay time gate hold time gate setup time gate pulse width total harmonic distortion the ratio of the total r
6. for at least 10 ns before the rising or falling edge of a source signal for the gate to take effect at that source edge as shown by tgsu and tg in Figure 4 35 The gate signal is not required to be held after the active edge of the source signal National Instruments Corporation 4 39 DAQCard 6062E User Manual Chapter 4 Signal Connections If an internal timebase clock is used the gate signal cannot be synchronized with the clock In this case gates applied close to a source edge take effect either on that source edge or on the next one This arrangement results in an uncertainty of one source clock period with respect to unsynchronized gating sources The OUT output timing parameters are referenced to the signal at the SOURCE input or to one of the internally generated clock signals on the DAQCard 6062E Figure 4 35 shows the OUT signal referenced to the rising edge of a source signal Any OUT signal state changes occur within 80 ns after the rising or falling edge of the source signal FREQ_OUT Signal This signal is available only as an output on the FREQ OUT pin The FREQ _ OUT signal is the output of the DAQCard 6062E frequency generator The frequency generator is a 4 bit counter that can divide its input clock by the numbers 1 through 16 The input clock of the frequency generator is software selectable from the internal 10 MHz and 100 kHz timebases The output polarity is software selectable This signal is set to high imp
7. 4 34 GPCTRO_UP_DOWN signal digital I O 3 10 general purpose timing connections 4 36 GPCTR1_GATE signal See also PFI4 GPCTR1_GATE signal general purpose coutner timing summary figure 4 39 general purpose timing connections 4 37 GPCTR1_OUT signal description table 4 4 general purpose counter timing summary figure 4 39 general purpose timing connections 4 38 signal summary table 4 6 GPCTR1_SOURCE signal See also PFI3 GPCTR1_SOURCE signal general purpose counter timing summary figure 4 39 general purpose timing connections 4 37 GPCTR1_UP_DOWN signal digital I O 3 10 general purpose timing connections 4 38 ground referenced signal sources description 4 9 DIFF connections 4 12 differential configuration 4 12 DAQCard 6062E User Manual recommended configuration figure 4 10 single ended connections NRSE configuration 4 16 H hardware installation procedure 2 1 typical configuration figure 2 3 unpacking DAQCard 6062E 1 5 hardware overview analog input dither 3 4 input mode 3 2 input polarity and range 3 3 multiple channel scanning considerations 3 5 selection considerations 3 4 analog output analog output reference selection 3 6 analog output reglitch selection 3 6 analog trigger 3 7 block diagram 3 1 digital I O 3 10 timing signal routing clocks 3 12 CONVERT signal routing figure 3 11 programmable function inputs 3 12 help professional services D 1 technical support
8. D 1 I O connectors exceeding maximum ratings caution 4 1 I O signal summary table 4 5 overview 4 1 1 4 ni com pin assignments figure 4 2 50 pin E series connector B 3 68 pin E series connector B 2 signal descriptions table 4 3 input configurations available input modes DIFF table 3 2 NRSE table 3 2 RSE table 3 2 common mode signal rejection 4 17 differential connections DIFF input configuration 4 11 floating signal sources 4 13 ground referenced signal sources 4 12 nonreferenced signal sources 4 13 recommended configuration figure 4 10 single ended connections floating signal sources RSE configuration 4 16 grounded signal sources NRSE configuration 4 16 input polarity and range actual range and measurement precision table 3 3 selection considerations 3 4 unipolar and bipolar 3 3 installation procedure 2 1 questions about C 2 typical configuration figure 2 3 unpacking DAQCard 6062E 1 5 instrument drivers D 1 K KnowledgeBase D 1 National Instruments Corporation 1 5 Index L LabVIEW and LabWindows CVI application software 1 3 multiple channel scanning 3 5 multirate scanning C 3 National Instruments customer education D 1 professional services D 1 system integration services D 1 technical support D 1 worldwide offices D 1 NI DAQ driver software overview 1 2 version required C 2 noise avoiding 4 40 NRSE nonreferenced single ended inp
9. DAQCard 6062E User Manual viii ni com GPCTRO GATE Signal oseese GPCTRO_OUT Signal oo eee GPCTRO_UP_DOWN Signal 1 GPCTR1_SOURCE Signal GPCTR1_GATE Signal oseese GPCTR1_OUT Signal oo ee GPCTR1_UP_DOWN Signal 0 FREQ OUT Signal susende Field Wiring Considerations 2 0 0 0 eee ee ee eseeseceeeeeeeeeeneeeees Chapter 5 Calibration Loading Calibration Constant 0 cece eeeeceeseeeeeeseeseeeneeeeees Self Calibration cosvusds deeeveetiecusvusasat oes covd vin ces cecatousneoves External Calibration c sistant weisscthililetani sain Other Considerations perrera inae Appendix A Specifications Appendix B Optional Cable Connector Descriptions Appendix C Common Questions Appendix D Technical Support and Professional Services Glossary Index National Instruments Corporation ix Contents DAQCard 6062E User Manual About This Manual This manual describes the electrical and mechanical aspects of the National Instruments DAQCard 6062E and contains information about operation and programming Conventions Used in This Manual lt gt gt g bold italic monospace NI DAQ The following conventions are used in this manual Angle brackets containing numbers separated by an ellipsis represent a range of values associated with a bit or signal name for example DIO lt 3 0 gt Angle brackets can also denote a variable in a channel name for example ACH lt i g
10. G 1 DAQCard 6062E User Manual Glossary A A A D AC ACH ADC ADE ADIO Al AIGATE AIGND AISENSE AO AOGND ASIC BC BIOS C C CalDAC CH DAQCard 6062E User Manual amperes analog to digital alternating current analog input channel signal analog to digital converter an electronic device often an integrated circuit that converts an analog voltage to a digital number application development environment analog digital input output analog input analog input gate signal analog input ground signal analog input sense signal analog output analog output ground signal application specific integrated circuit buffer counter basic input output system or built in operating system Celsius calibration DAC channel G 2 ni com channel rate CIS cm CMOS CMRR CONVERT CTR D D A DAC DACOOUT DACIOUT DAQ DAQCard DAQ STC dB DC DGND DIFF DIO National Instruments Corporation Glossary reciprocal of the interchannel delay Card Information Structure centimeter complementary metal oxide semiconductor common mode rejection ratio convert signal counter digital to analog digital to analog converter an electronic device often an integrated circuit that converts a digital number into a corresponding analog voltage or current analog channel 0 output signal analog channel 1 output signal data acquisition a system that uses the computer t
11. SCANCLK signal 4 30 SISOURCE signal 4 29 STARTSCAN signal 4 26 TRIGI signal 4 23 TRIG signal 4 24 typical posttriggered acquisition figure 4 22 typical pretriggered acquisition figure 4 23 general purpose timing signal connections FREQ OUT signal 4 40 GPCTRO_GATE signal 4 35 GPCTRO_OUT signal 4 36 GPCTRO_SOURCE signal 4 34 GPCTRO_UP_DOWN signal 4 36 GPCTR1_GATE signal 4 37 GPCTR1_OUT signal 4 38 GPCTR1_SOURCE signal 4 37 GPCTR1_UP_DOWN signal 4 38 programmable function input connections 4 21 questions about C 4 timing I O connections figure 4 21 ni com waveform generation timing connections UISOURCE signal 4 33 UPDATES signal 4 32 WFTRIG signal 4 31 timing I O specifications A 7 timing signal routing clocks 3 12 CONVERT signal routing figure 3 11 programmable function inputs 3 12 training customer D 1 TRIGI signal See also PFIO TRIG1 signal analog triggering 3 7 input timing figure 4 24 output timing figure 4 24 timing connections 4 23 TRIG signal See also PFI1 TRIG2 signal input timing figure 4 25 output timing figure 4 25 timing connections 4 24 triggers analog trigger description 3 7 specifications A 7 digital trigger specifications A 8 questions about C 6 troubleshooting resources D 1 U UISOURCE signal 4 33 unipolar input 3 3 unpacking DAQCard 6062E 1 5 National Instruments Corporation 1 9 Index UPDATES signal See also PFIS UPDATE
12. high input impedance to the AI signals connected to the DAQCard 6062E Signals are routed to the positive and negative inputs of the PGIA through input multiplexers on the DAQCard 6062E The PGIA converts two input signals to a signal that is the difference between the two input signals multiplied by the gain setting of the amplifier The amplifier output voltage is referenced to the ground for the DAQCard 6062E The DAQCard 6062E ADC measures this output voltage when it performs A D conversions You must reference all signals to ground either at the source device or at the DAQCard 6062E If you have a floating source reference the signal to ground using RSE mode or the DIFF input configuration with bias resistors Refer to the Differential Connections for Nonreferenced or Floating Signal Sources section for more information If you have a grounded source you should not reference the signal to AIGND You can avoid this reference by using DIFF or NRSE input configurations 4 8 ni com Chapter 4 Signal Connections Types of Signal Sources When configuring the input channels and making signal connections you must first determine whether the signal sources are floating or ground referenced The following sections describe these two signal types Floating Signal Sources A floating signal source is one that is not connected in any way to the building ground system but rather has an isolated ground reference point Some examples of fl
13. signal input timing figure 4 33 ouput timing figure 4 33 timing connections 4 32 V VCC signal table 4 6 voltage output specifications A 5 W waveform generation timing connections UISOURCE signal 4 33 UPDATE signal 4 32 WFTRIG signal 4 31 waveform generation questions about C 4 Web professional services D 1 technical support D 1 WFTRIG signal See also PFI6 WFTRIG signal input signal timing figure 4 32 output signal timing figure 4 32 timing connections 4 31 wiring considerations 4 40 worldwide technical support D 1 DAQCard 6062E User Manual
14. 1 1 0 Connector Details ribbon cable Cable for Cable for Cable for Connecting to Connecting to Connecting to Device with I O Number of 100 Pin 68 Pin 50 Pin Connector Pins Accessories Accessories Accessories DAQCard 6062E 68 N A SHC68 68EP SHC68 68 EP shielded cable with 68M 50F RC68 68 cable adapter UN Caution Connections that exceed any of the maximum ratings of input or output signals on the devices can damage the device and the computer Maximum input ratings for each signal are given in the Protection column of Table 4 3 NI is not liable for any damage resulting from such signal connections 1 0 Connector Figure 4 1 shows the pin assignments for the 68 pin I O connector on the DAQCard 6062E A signal description follows the connector pinout UN Caution Exceeding the differential and common mode input ranges distorts the input signals Exceeding the maximum input voltage rating can damage the DAQCard 6062E and the computer NI is not liable for any damage resulting from such signal connections The maximum input voltage ratings are listed in the Protection column of Table 4 3 National Instruments Corporation 4 1 DAQCard 6062E User Manual Chapter 4 DAQCard 6062E User Manual Signal Connections ACH8 ACH1 AIGND ACH10 ACH3 AIGND ACH4 AIGND ACH13 ACH6 AIGND ACH15 DACOOUT DAC10UT EXTREF DIO4 DGND DIO1 DIO6 DGND 5V DGND DGND PFIO TRIG1 PFI1 TRI
15. 100 mV if the ADC is in unipolar mode The approximately 4 V step from 4 V to 1 mV is 4 000 of the new full scale range The circuitry National Instruments Corporation 3 5 DAQCard 6062E User Manual Chapter 3 Hardware Overview Analog Output can take as long as 100 us to settle to 1 LSB after such a large transition In general this extra settling time is not needed when the PGIA switches to a lower gain A phenomenon called charge injection in which the AI multiplexer injects a small amount of charge into each signal source when that source is selected can cause settling times to increase when scanning high impedance signals If the impedance of the source is too high the effect of the charge a voltage error has not decayed by the time the ADC samples the signal For this reason keep source impedances under 1 kQ to perform high speed scanning Multiple channel scanning is not recommended unless sampling rates are low or you must sample several signals almost simultaneously The data is more accurate and channel to channel independent if you independently acquire data from each channel for example 100 points from channel 0 then 100 points from channel 1 then 100 points from channel 2 and so on The DAQCard 6062E supplies two channels of AO voltage at the I O connector You can select the reference and the range for the AO circuitry using software The reference can be either internal or external and the range is bipo
16. Convert As an input this is a PFI Output As an output this is the CONVERT AI Convert signal A high to low edge on CONVERT indicates that an A D conversion is occurring PFI3 GPCTR1_SOURCE DGND Input PFI3 Counter 1 Source As an input this is a PFI Output As an output this is the GPCTR1_SOURCE signal This signal reflects the actual source connected to general purpose counter 1 PFI4 GPCTR1_GATE DGND Input PFI4 Counter 1 Gate As an input this is a PFI Output As an output this is the GPCTR1_GATE signal This signal reflects the actual gate signal connected to general purpose counter 1 GPCTR1_OUT DGND Output Counter 1 Output This output is from the general purpose counter 1 output PFIS5 UPDATE DGND Input PFI5 Update As an input this is a PFI Output As an output this is the UPDATE AO Update signal A high to low edge on UPDATE indicates that the AO primary group is being updated PFI6 WFTRIG DGND Input PFI6 Waveform Trigger As an input this is a PFI Output As an output this is the WFTRIG AO Start Trigger signal In timed AO sequences a low to high transition indicates the initiation of the waveform generation DAQCard 6062E User Manual 4 4 ni com Chapter 4 Signal Connections Table 4 2 1 0 Connector Signal Descriptions Continued Signal Name Reference Direction Description PFI7 STARTSCAN DGND Input PFI7 Start of Scan As an input this is a P
17. Important Information Warranty The DAQCard 6062E is 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 repair or replace equipment that proves to be defective during the warranty period This warranty includes parts and labor The media on which you receive National Instruments software are warranted not to fail to execute programming instructions due to defects in materials and workmanship for a period of 90 days from date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period National Instruments does not warrant that the operation of the software shall be uninterrupted or error free A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty National Instruments believes that the information in this document is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instrum
18. Manual I am seeing crosstalk or ghost voltages when sampling multiple channels What does this mean You maybe experiencing a phenomenon called charge injection which occurs when you sample a series of high output impedance sources with a multiplexer Multiplexers contain switches usually made of switched capacitors When a channel for example ACHO is selected in a multiplexer those capacitors accumulate charge When the next channel for example ACH1 is selected the accumulated current i e charge leaks backward through that channel If the output impedance of the source connected to ACH 1 is high enough the resulting reading can somewhat reflect the voltage trends in ACHO To circumvent this problem you must use a voltage follower that has operational amplifiers op amps with unity gain for each high impedance source before connecting to the DAQ device Otherwise you must decrease the rate at which each channel is sampled Another common cause of channel crosstalk is due to sampling among multiple channels at various gains In this situation the settling times may increase For more information on charge injection and sampling channels at different gains refer to the Multiple Channel Scanning Considerations section of Chapter 3 Hardware Overview I m using the DACs to generate a waveform but I discovered with a digital oscilloscope that there are glitches on the output signal Is this normal When it switches from one vo
19. OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION INCLUDING WITHOUT LIMITATION THE APPROPRIATE DESIGN PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION Compliance FCC Canada Radio Frequency Interference Compliance 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 for use in industrial commercial locations only or Class B for use in residential or commercial locations Depending on where it is operated this product could be subject to restrictions in the FCC rules In Canada the Department of Communications DOC of Industry Canada regulates wireless interference in much the same way Digital electronics emit weak signals during normal operation that can affect radio television or other wireless products By examining the product you purchased you can determine the FCC Class and therefore which of the two FCC DOC Warnings apply in the following sections Some products may not be labeled at all for FCC if so the reader should then assume these are Class A devices FCC Class A products only display a simple warning statement of one paragraph in length regarding interference and undesired operation Most of our products are FCC Class A The FCC rules have restrictions regarding the locatio
20. Related Documentation rer gras Eee EA engene xii Chapter 1 Introduction About the DAQCard 6062E sasinen aoi eaaa E e e EE E E E i 1 1 What You Needto Get Started seieren i e a e E S 1 2 Software Programming CholCeSissiseresionii eriiic Ee Ea iai 1 2 NEDAQ Sea aha E a ER Sa 1 2 National Instruments ADE Software ssseeseeseseeseeesessessesssssessrssrssessessreseese 1 3 Optional Equipment asise ir anisa ar e r ea ea T ters an lerede 1 4 Clistom Cabin giese ve Sines reed E E E EEE E EEA ERENER 1 5 Unpack in g ernen r a A bastion tans N a T Aa 1 5 Safety Information s m i eieiaeo Sid Enie a Aa E E A EER NE Ani 1 6 Chapter 2 Installing and Configuring the DAQCard 6062E Installing the SoftWare peins n aa os 2 1 Installing the Hardware eene etle i uiden A raua E E EUAS EEES Ae Tr E aS pes 2 1 Configuring the Hardware saa nen aA 2 3 Chapter 3 Hardware Overview ANALOG PUE AE hrein BESES SR ERNE R O ONE AE EOE EEEE 3 2 Input Mode si nar E A E EE A avila 3 2 Input Polarity and Input Range W Gu u sssseserrersereeeserse renerne renee ene ren renerne 3 3 Considerations for Selecting Input Ranges eee eee eters 3 4 PINETE sce E a Shcnutetiec pane ts FR TEST SSR SUS ERE SNERRE EOS eee 3 4 Multiple Channel Scanning Considerations 2 0 0 eee ee eeeeseeseeeeeseeeeeeeees 3 5 Anal g Otp ti saeun de aiveases de cuvevtegdusevevseyau es vestephe Uh cetrrens SEES SEES ERE ENES 3 6 Analog Output Reference Selection 0 0 eee eeeeseeeecesesseeesesse
21. both the positive and negative inputs of the PGIA and the amplifier rejects this difference If the input circuitry of a DAQCard 6062E were referenced to ground in this situation as in the RSE input configuration this difference in ground potentials appears as an error in the measured voltage 4 16 ni com Chapter 4 Signal Connections Figure 4 7 shows how to connect a grounded signal source to a channel on a DAQCard 6062E configured for NRSE mode ACH lt 0 15 gt OO 0 So 0 so e F Ground Instrumentation Referenced v Amplifier Signal S a a Source Input Multiplexers CE Common Measured Mode AISENSE Voltage Noise Ga o AIGND and Ground yf Potential 177 Selected Channel in NRSE Configuration I O Connector Figure 4 7 Single Ended Input Connections for Ground Referenced Signals Common Mode Signal Rejection Considerations Figures 4 4 and 4 7 show connections for signal sources that are already referenced to some ground point with respect to the DAQCard 6062E In these cases the PGIA can reject any voltage caused by ground potential differences between the signal source and the DAQCard 6062E In addition with differential input connections the PGIA can reject common mode noise pickup in the leads connecting the signal sources to the DAQCard 6062E The PGIA can reject common mode signals as long as Vint and V are both
22. differential measurements All three ground references AIGND AOGND and DGND are connected on the DAQCard 6062E ACH lt 0 15 gt AIGND Input Analog Input Channels 0 through 15 You can configure each channel pair ACH lt i i 8 gt i 0 7 as either one differential input or two single ended inputs AISENSE AIGND Input Analog Input Sense This pin serves as the reference node for any of channels ACH lt 0 15 gt in NRSE configuration DACOOUT AOGND Output Analog Channel 0 Output This pin supplies the voltage output of AO channel 0 DAC1OUT AOGND Output Analog Channel 1 Output This pin supplies the voltage output of AO channel 1 AOGND Analog Output Ground This node references the AO voltages All three ground references AIGND AOGND and DGND are connected on the DAQCard 6062E DGND Digital Ground This pin supplies the reference for the digital signals at the I O connector as well as the 5 VDC supply All three ground references AIGND AOGND and DGND are connected on the DAQCard 6062E DIO lt 0 7 gt DGND Input or Output Digital I O Signals DI06 and DIO7 can control the up down signal of general purpose counters 0 and 1 respectively 5V DGND Output 5 VDC Source These pins are fused for up to 250 mA of 5 V supply The fuse is self resetting SCANCLK DGND Output Scan Clock This pin pulses once for ea
23. for the remainder of the timing signals As inputs the PFIs are programmable and can control any DAQ waveform generation and general purpose timing signals The Data Acquisition Timing Connections section explains the DAQ signals The Waveform Generation Timing Connections section explains waveform generation signals The General Purpose Timing Signal Connections section explains the general purpose timing signals 4 20 ni com Chapter 4 Signal Connections All digital timing connections are referenced to DGND This reference is demonstrated in Figure 4 10 which shows how to connect an external TRIGI1 source and an external CONVERT source to two of the DAQCard 6062E PFI pins PFIO TRIG1 PFl2 CONVERT oO TRIG1 CONVERT Source Source DGND I O Connector Cy E Series Card Figure 4 10 Timing I O Connections Programmable Function Input Connections You can externally control 13 internal timing signals from the PFI pins The source for each of these signals is software selectable from any PFI when you want external control This flexible routing scheme reduces the need to change the physical wiring to the DAQCard 6062E I O connector for different applications requiring alternative wiring You can individually enable each PFI pin to output a specific internal timing signal For example if you need the CONVERT sig
24. interrupts and saving the counter contents As an output GPCTRO_GATE reflects the actual gate signal connected to general purpose counter 0 even if another PFI externally generates the gate This signal is set to high impedance at startup National Instruments Corporation 4 35 DAQCard 6062E User Manual Chapter 4 Signal Connections Figure 4 30 shows the timing requirements for GPCTRO GATE Rising Edge Polarity Falling Edge Polarity ty 10 ns minimum Figure 4 30 GPCTRO_GATE Signal Timing in Edge Detection Mode GPCTRO_OUT Signal This signal is available only as an output on the GPCTRO_OUT pin The GPCTRO_OUT signal reflects the terminal count TC of general purpose counter 0 You have two software selectable output options pulse on TC and toggle output polarity on TC The output polarity is software selectable for both options This signal is set to high impedance at startup Figure 4 31 shows the timing of GPCTRO_OUT GPCTRO_SOURCE GPCTRO_OUT Pulse on TC GPCTRO_OUT Toggle Output on TC DAQCard 6062E User Manual Figure 4 31 GPCTRO_OUT Signal Timing GPCTRO_UP_DOWN Signal This signal can be externally input on the DIO6 pin and is not available as an output on the I O connector The general purpose counter 0 counts down when this pin is at a logic low and count up when it is at a logic high You can disable this input
25. lines These lines are capable of inducing currents in or voltages on the DAQCard 6062E signal lines if they run in parallel paths at a close distance To reduce the magnetic coupling between lines separate them by a reasonable distance if they run in parallel or run the lines at right angles to each other e Do not run signal lines through conduits that also contain power lines e Protect signal lines from magnetic fields caused by electric motors welding equipment breakers or transformers by running them through special metal conduits For more information refer to the NI Developer Zone tutorial Field Wiring and Noise Consideration for Analog Signals available at ni com zone National Instruments Corporation 4 41 DAQCard 6062E User Manual Calibration This chapter discusses the calibration procedures for the DAQCard 6062E If you are using NI DAQ the software includes calibration functions for performing all the steps in the calibration process Calibration refers to the process of minimizing measurement and output voltage errors by making small circuit adjustments On the DAQCard 6062E these adjustments take the form of writing values to onboard calibration DACs CalDACs Some form of calibration is required for most applications Without calibration the signals and measurements could have very large offset gain and linearity errors Three levels of calibration are available to you and these are described in
26. sequence In pretriggered mode the TRIG1 signal initiates the acquisition The scan counter SC indicates the minimum number of scans before TRIG2 is 4 24 ni com Chapter 4 Signal Connections recognized After the SC decrements to zero it is loaded with the number of posttrigger scans to acquire while the acquisition continues The DAQCard 6062E ignores TRIG2 if it is asserted prior to the SC decrementing to zero After the selected edge of TRIG2 is received the DAQCard 6062E acquires a fixed number of scans and the acquisition stops This mode acquires data both before and after receiving TRIG2 As an output TRIG2 reflects the posttrigger in a pretriggered DAQ sequence even if another PFI externally triggers the acquisition TRIG2 is not used in posttriggered acquisitions The output is an active high pulse with a pulse width of 50 to 100 ns This signal is set to high impedance at startup Figures 4 15 and 4 16 show the input and output timing requirements for TRIG2 Rising Edge Polarity Falling Edge Polarity t 10 ns minimum Figure 4 15 TRIG2 Input Signal Timing tw 50 to 100 ns Figure 4 16 TRIG2 Output Signal Timing National Instruments Corporation 4 25 DAQCard 6062E User Manual Chapter 4 Signal Connections DAQCard 6062E User Manual STARTSCAN Signal Any PFI pin can externally input the STARTSCAN signal which is available as an output on the PFI7 STA
27. so that software can control the up down functionality and leave the DIO6 pin free for general use 4 36 ni com Chapter 4 Signal Connections GPCTR1_SOURCE Signal Any PFI pin can externally input the GPCTR1_SOURCE signal which is available as an output on the PFI3 GPCTR1_SOURCE pin As an input GPCTR1 SOURCE is configured in the edge detection mode You can select any PFI pin as the source for GPCTR1_SOURCE and configure the polarity selection for either rising or falling edge As an output GPCTR1_SOURCE monitors the actual clock connected to general purpose counter 1 even if another PFI externally generates the source clock This signal is set to high impedance at startup Figure 4 32 shows the timing requirements for GPCTR1 SOURCE tp 50 ns minimum ty 23 ns minimum Figure 4 32 GPCTR1_SOURCE Signal Timing The maximum allowed frequency is 20 MHz with a minimum pulse width of 23 ns high or low There is no minimum frequency limitation The 20 MHz or 100 kHz timebase normally generates GPCTR1_SOURCE unless you select some external source GPCTR1_GATE Signal Any PFI pin can externally input the GPCTR1 GATE signal which is available as an output on the PFI4 GPCTR1_GATE pin As an input the GPCTR1_GATE signal is configured in edge detection mode You can select any PFI pin as the source for GPCTR1 GATE and configure the polarity selection for either rising or falling edge You can use the gate sig
28. this chapter The first level is the fastest easiest and least accurate whereas the last level is the slowest most difficult and most accurate Loading Calibration Constants The DAQCard 6062E is factory calibrated before shipment at approximately 25 C to the levels indicated in Appendix A Specifications The associated calibration constants the values that were written to the CalDACs to achieve calibration in the factory are stored in the onboard nonvolatile memory EEPROM Because the CalDACs have no memory capability they do not retain calibration information when the DAQCard 6062E is unpowered Loading calibration constants refers to the process of loading the CalDACs with the values stored in the EEPROM NI DAQ determines when this loading is necessary and does it automatically If you are not using NI DAQ you must load these values The EEPROM has a user modifiable calibration area in addition to the permanent factory calibration area so you can load the CalDACs with values either from the original factory calibration or from a calibration that you subsequently performed National Instruments Corporation 5 1 DAQCard 6062E User Manual Chapter 5 Calibration This method of calibration is not very accurate because it does not take into account the fact that the DAQCard 6062E measurement and output voltage errors can vary with time and temperature It is better to self calibrate when the DAQCard 6062E is installed in t
29. within 11 V of AIGND Analog Output Signal Connections The AO signals are DACOOUT DACIOUT EXTREF and AOGND e DACOOUT is the voltage output signal for AO channel 0 e DACIOUT is the voltage output signal for AO channel 1 EXTREF is the external reference input for both AO channels You must individually configure each AO channel for external reference selection in order for the signal applied at the external reference input to be used by that National Instruments Corporation 4 17 DAQCard 6062E User Manual Chapter 4 Signal Connections channel If you do not specify an external reference the channel uses the internal reference AO configuration options are explained in the Analog Input section of Chapter 3 Hardware Overview The following ranges and ratings apply to the EXTREF input e Usable input voltage range 11 V peak with respect to AOGND e Absolute maximum ratings 15 V peak with respect to AOGND AOGND is the ground reference signal for both AO channels and the external reference signal Figure 4 8 shows how to make AO connections and the external reference input connection to the DAQCard 6062E External Reference Signal optional EXTREF DACOOUT o O Channel 0 Load DAC1OUT TOT Channel 1 rr Analog Output Channels E Series Device DAQCard 6062E User Manual Figure 4 8 Analog Output Connections The external
30. 0 equipment optional 1 4 example code D 1 National Instruments Corporation 1 3 Index EXTREF signal 4 17 EXTSTROBE signal description table 4 3 signal summary table 4 6 timing connections 4 31 F field wiring considerations 4 40 floating signal sources description 4 9 differential connections 4 13 recommended configuration figure 4 10 single ended connections RSE configuration 4 16 FREQ OQUT signal description table 4 5 general purpose timing connections 4 40 signal summary table 4 7 frequently asked questions See questions and answers fuse self resetting 4 20 C 1 G general purpose timing signal connections FREQ OQUT signal 4 40 GPCTRO GATE signal 4 35 GPCTRO_OUT signal 4 36 GPCTRO_SOURCE signal 4 34 GPCTRO_UP_DOWN signal 4 36 GPCTR1_GATE signal 4 37 GPCTR1_OUT signal 4 38 GPCTR1_SOURCE signal 4 37 GPCTR1_UP_DOWN signal 4 38 questions about C 4 glitches questions about C 4 GPCTRO_GATE signal See also PFI9 GPCTRO_GATE signal DAQCard 6062E User Manual Index general purpose counter timing summary figure 4 39 general purpose timing connections 4 35 GPCTRO_OUT signal description table 4 5 general purpose counter timing summary figure 4 39 general purpose timing connections 4 36 signal summary table 4 6 GPCTRO_SOURCE signal See also PFI8 GPCTRO_SOURCE signal general purpose counter timing summary figure 4 39 general purpose timing connections
31. 1 DAQCard 6062E User Manual Index C cables See also I O connectors custom cabling 1 5 field wiring considerations 4 40 optional equipment 1 4 calibration adjusting for gain error 5 2 external calibration 5 2 loading calibration constants 5 1 self calibration 5 2 specifications A 8 charge injection 3 6 clocks 3 12 commonly asked questions See questions and answers common mode signal rejection 4 17 configuration See also input configurations overview 2 3 questions about C 2 connectors See I O connectors contacting National Instruments D 1 conventions used in manual xi CONVERT signal See also PFI2 CONVERT signal input timing figure 4 28 output timing figure 4 28 signal routing figure 3 11 timing connections 3 11 4 28 counter timer applications C 6 customer education D 1 professional services D 1 technical support D 1 D DACOOUT signal analog output signal connections 4 17 DAQCard 6062E User Manual description table 4 3 signal summary table 4 5 DACIOUT signal analog output signal connections 4 17 description table 4 3 signal summary table 4 5 DAQ timing connections See data acquisition timing connections DAQCard 6062E See also hardware overview custom cabling 1 5 optional equipment 1 4 overview 1 1 questions about analog input and output C 2 general information C 1 installation and configuration C 2 timing and digital I O C 6 re
32. 3 ACH4 ACH5 ACH6 ACH7 AISENSE DAC10OUT AOGND DIOO DIO1 DIO2 DIO3 DGND 5V EXTSTROBE PFI1 TRIG2 PFI3 GPCTR1_SOURCE GPCTR1_OUT PFI6 WFTRIG PFI8 GPCTRO_SOURCE GPCTRO_OUT 0 ARN ON oO wo fo r 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 AIGND ACH8 ACH9 ACH10 ACH11 ACH12 ACH13 ACH14 ACH15 DACOOUT EXTREF DGND DIO4 DIO5 DIO6 DIO7 5V SCANCLK PFIO TRIG1 PFl2 CONVERT PFI4 GPCTR1_GATE PFI5 UPDATE PFI7 STARTSCAN PFI9 GPCTRO_GATE FREQ_OUT Figure B 2 50 Pin E Series Connector Pin Assignments B 3 DAQCard 6062E User Manual Common Questions This appendix contains a list of commonly asked questions and their answers relating to usage and special features of the DAQCard 6062E General Information What is the DAQ STC The DAQ STC is the system timing control ASIC application specific integrated circuit designed by National Instruments and is the backbone of the DAQCard 6062E The DAQ STC contains seven 24 bit counters and three 16 bit counters The counters are divided into three groups e Al two 24 bit two 16 bit counters e AO three 24 bit one 16 bit counters e Gener
33. 4 88 mV 1 0 5 to 5 V 2 44 mV 2 0 2 5 to 2 5 V 1 22 mV 5 0 l to 1 V 488 28 uV 10 0 500 to 500 mV 244 14 uV 20 0 250 to 250 mV 122 07 uV 50 0 100 to 100 mV 48 83 uV 100 0 50 to 50 mV 24 41 uV The value of 1 least significant bit LSB of the 12 bit ADC that is the voltage increment corresponding to a change of one count in the ADC 12 bit count Note Refer to Appendix A Specifications for absolute maximum ratings National Instruments Corporation 3 3 DAQCard 6062E User Manual Chapter 3 Dither DAQCard 6062E User Manual Hardware Overview Considerations for Selecting Input Ranges Which input polarity and range you select depends on the expected range of the incoming signal A large input range can accommodate a large signal variation but reduces the voltage resolution Choosing a smaller input range improves the voltage resolution but may result in the input signal going out of range For best results you should match the input range as closely as possible to the expected range of the input signal For example if you are certain the input signal will not be negative below 0 V unipolar input polarity is best However if the signal is negative or equal to zero inaccurate readings will occur if you use unipolar input polarity When you enable dither you add approximately 0 5 LSB of white Gaussian noise to the signal to be converted by the ADC This addition is useful for applications involv
34. AQCard 6062E User Manual The following documents contain useful information related to the DAQCard 6062E DAQ Quick Start Guide located at ni com manuals DAQ STC Technical Reference Manual located at ni com manuals NI DAQ Function Reference Help accessible by selecting Start Programs National Instruments NI DAQ NI DAQ Help NI DAQ User Manual for PC Compatibles located at ni com manuals The NI Developer Zone tutorial Field Wiring and Noise Consideration for Analog Signals located at ni com zone xii ni com Introduction This chapter describes the DAQCard 6062E lists what you need to get started explains how to unpack the DAQCard 6062E and describes the optional software and equipment About the DAQCard 6062E Thank you for buying a DAQCard 6062E The DAQCard 6062E is a multifunction analog digital and timing I O data acquisition DAQ device for computers equipped with Type II PCMCIA slots This device features a 12 bit A D converter ADC two 12 bit D A converters DACs eight lines of TTL compatible digital I O DIO and two 24 bit counter timers for timing I O TIO The DAQCard 6062E uses the National Instruments DAQ STC system timing controller for time related functions The DAQ STC consists of three timing groups that control analog input AJ analog output AO and general purpose counter timer functions These groups include a total of seven 24 bit and three 16 bit counters and have a maxi
35. DAQ DAQCard 6062E User Manual Multifunction 1 0 Device for PCMCIA Wy NATIONAL June 2002 Edition p INSTRUMENTS Part Number 370564A 01 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 03 9879 5166 Austria 0662 45 79 90 0 Belgium 02 757 00 20 Brazil 011 3262 3599 Canada Calgary 403 274 9391 Canada Montreal 514 288 5722 Canada Ottawa 613 233 5949 Canada Qu bec 514 694 8521 Canada Toronto 905 785 0085 China 86 21 6555 7838 Czech Republic 02 2423 5774 Denmark 45 76 26 00 Finland 09 725 725 11 France 01 48 14 24 24 Germany 089 741 31 30 Greece 01 42 96 427 Hong Kong 2645 3186 India 91 80 4190000 Israel 03 6393737 Italy 02 413091 Japan 03 5472 2970 Korea 02 3451 3400 Malaysia 603 9596711 Mexico 001 800 010 0793 Netherlands 0348 433466 New Zealand 09 914 0488 Norway 32 27 73 00 Poland 22 3390 150 Portugal 210 311 210 Russia 095 238 7139 Singapore 65 6 226 5886 Slovenia 3 425 4200 South Africa 11 805 8197 Spain 91 640 0085 Sweden 08 587 895 00 Switzerland 056 200 51 51 Taiwan 02 2528 7227 United Kingdom 01635 523545 For further support information see the Technical Support and Professional Services appendix To comment on the documentation send email to techpubs ni com 2002 National Instruments Corporation All rights reserved
36. DATE signal unless you select some external source The UI counter is started by the WFTRIG signal and can be stopped by software or the internal buffer counter BC D A conversions generated by either an internal or external UPDATE signal do not occur when gated by the software command register gate UISOURCE Signal Any PFI pin can externally input the UISOURCE signal which is not available as an output on the I O connector The UI counter uses the UISOURCE signal as a clock to time the generation of UPDATE You must configure the PFI pin you select as the source for the UISOURCE signal in the level detection mode You can configure the polarity selection for the PFI pin for either active high or active low Figure 4 28 shows the timing requirements for UISOURCE National Instruments Corporation 4 33 DAQCard 6062E User Manual Chapter 4 Signal Connections tp 50 ns minimum ty 23 ns minimum Figure 4 28 UISOURCE Signal Timing The maximum allowed frequency is 20 MHz with a minimum pulse width of 23 ns high or low There is no minimum frequency limitation Either the 20 MHz or 100 kHz internal timebase normally generates UISOURCE unless you select some external source General Purpose Timing Signal Connections The general purpose timing signals are GPCTRO_SOURCE GPCTRO_GATE GPCTRO_OUT GPCTRO_UP_DOWN GPCTR1_SOURCE GPCTR1_GATE GPCTR1_OUT GPCTR1_UP_DOWN and FREQ OUT GPCTRO_SOURCE Signal An
37. FI Output As an output this is the STARTSCAN AI Scan Start signal This pin pulses once at the start of each AI scan in the interval scan A low to high transition indicates the start of the scan PFI8 GPCTRO_SOURCE DGND Input PFI8 Counter 0 Source As an input this is a PFI Output As an output this is the GPCTRO_SOURCE signal This signal reflects the actual source connected to general purpose counter 0 PFI9 GPCTRO_GATE DGND Input PFI9 Counter 0 Gate As an input this is a PFI Output As an output this is the GPCTRO_GATE signal This signal reflects the actual gate signal connected to general purpose counter 0 GPCTRO_OUT DGND Output Counter 0 Output This output is from the general purpose counter 0 output FREQ_OUT DGND Output Frequency Output This output is from the frequency generator output Table 4 3 1 0 Signal Summary for the DAQCard 6062E Impedance Protection Sink Rise Input Volts Source mA Time Signal Name Drive Output On Off mA at V at V ns Bias ACH lt 0 15 gt Al 100 GQ 25 10 200 pA in parallel with 100 pF AISENSE Al 100 GQ 25 10 200 pA in parallel with 100 pF AIGND Al DACOOUT AO 0 1 Q Short circuit 5 at 10 5 at 10 10 to ground V us DACIOUT AO 0 1 Q Short circuit 5 at 10 5 at 10 10 to ground V Us AOGND DGND DO
38. G2 DGND 5V DGND PFI5 UPDATE PFI6 WFTRIG DGND PFI9 GPCTRO_GATE GPCTRO_OUT FREQ_OUT 34 SS 68 33 67 32 66 31 65 30 64 29 63 28 62 27 61 26 60 M oa 59 nn 58 N wo 57 RD N 56 ye i 55 DD oOo 54 o 53 52 en N 51 O 50 sk oa 49 A 48 sk wo 47 mn N 46 sk 45 44 o 43 42 41 40 39 38 37 36 v A OH DM N o 35 A eee ACHO AIGND ACH9 ACH2 AIGND ACH11 AISENSE ACH12 ACH5 AIGND ACH14 ACH7 AIGND AOGND AOGND DGND DIOO DIO5 DGND DIO2 DIO7 DIO3 SCANCLK EXTSTROBE DGND PFI2 CONVERT PFI3 GPCTR1_SOURCE PFI4 GPCTR1_GATE GPCTR1_OUT DGND PFI7 STARTSCAN PFI8 GPCTRO_SOURCE DGND DGND Figure 4 1 1 0 Connector Pin Assignment for the DAQCard 6062E 4 2 ni com Chapter 4 Signal Connections Table 4 2 describes the DAQCard 6062E I O connectors as diagrammed in Figure 4 1 Table 4 3 gives the I O signal summary for these connections Table 4 2 1 0 Connector Signal Descriptions Signal Name Reference Direction Description AIGND Analog Input Ground These pins serve as the reference point for single ended measurements and the bias current return point for
39. O 3 5at 5 at 0 4 1 5 50 kQ pu Vec 0 4 DAQCard 6062E User Manual 4 6 ni com and 100 kQ 1 DIO lt 6 7 gt are also pulled up with a 10 kQ resistor 2 Also pulled down with a 10 kQ resistor Note The tolerance on the 50 kQ pull up and pull down resistors is large actual values may range between 17 kQ Caution Unless specifically indicated in the Protection column of Table 4 2 the outputs of DAQCard 6062E devices are not short circuit protected Exceeding the output limit in the Source and Sink columns can damage the DAQCard 6062E Chapter 4 Signal Connections Table 4 3 1 0 Signal Summary for the DAQCard 6062E Continued Impedance Protection Sink Rise Input Volts Source mA Time Signal Name Drive Output On Off mA at V at V ns Bias FREQ_OUT DO 3 5 at 5 at 0 4 1 5 50 KQ pu Ve 0 4 pu pull up DO Digital Output ADIO Analog Digital Input Output Analog Input Signal Connections The AI signals are ACH lt 0 15 gt AISENSE and AIGND The ACH lt 0 15 gt signals connect to the 16 AI channels of the DAQCard 6062E In single ended mode signals connected to ACH lt 0 15 gt are routed to the positive input of the DAQCard PGIA In DIFF mode signals connected to ACH lt 0 7 gt are routed to the positive input of the PGIA and signals connected to ACH lt 8 15 gt are routed to the negative input of the PGIA UN Caution Exceeding the differential and c
40. Overview for more information on analog triggering As an output TRIG1 reflects the action that initiates a DAQ sequence even if another PFI externally triggers the acquisition The output is an active high pulse with a pulse width of 50 to 100 ns This output is set to high impedance at startup National Instruments Corporation 4 23 DAQCard 6062E User Manual Chapter 4 Signal Connections DAQCard 6062E User Manual Figures 4 13 and 4 14 show the timing requirements for TRIG1 tw lt gt Rising Edge Polarity Falling Edge Polarity ty 10 ns minimum Figure 4 13 TRIG1 Input Signal Timing ty 50 to 100 ns Figure 4 14 TRIG1 Output Signal Timing The DAQCard 6062E also uses TRIGI to initiate pretriggered DAQ operations In most pretriggered applications TRIG1 is generated by a software trigger Refer to the TRIG2 signal description for a complete description of the use of TRIG1 and TRIG2 in a pretriggered DAQ operation TRIG2 Signal Any PFI pin can externally input the TRIG2 signal which is available as an output on the PFI1 TRIG2 pin Refer to Figure 4 12 for the relationship of TRIG2 to the DAQ sequence As an input TRIG2 is configured in the edge detection mode You can select any PFI pin as the source for TRIG2 and configure the polarity selection for either rising or falling edge The selected edge of TRIG2 initiates the posttriggered phase of a pretriggered DAQ
41. RTSCAN pin Refer to Figures 4 11 and 4 12 for the relationship of STARTSCAN to the DAQ sequence s an input STARTSCAN is configured in the edge detection mode You can select any PFI pin as the source for STARTSCAN and configure the polarity selection for either rising or falling edge The selected edge of the STARTSCAN signal initiates a scan The sample interval SI2 counter is started if you select internally triggered CONVERT As an output STARTSCAN reflects the actual start pulse that initiates a scan even if another PFI externally triggers the starts You have two output options The first option is an active high pulse with a pulse width of 50 to 100 ns which indicates the start of the scan The second option is an active high pulse that terminates at the start of the last conversion in the scan which indicates a scan in progress STARTSCAN is deasserted toft after the last conversion in the scan is initiated This output is set to high impedance at startup Figures 4 17 and 4 18 show the timing requirements for STARTSCAN Rising Edge Polarity Falling Edge Polarity ty 10 ns minimum Figure 4 17 STARTSCAN Input Signal Timing 4 26 ni com Chapter 4 Signal Connections STARTSCAN ty 50 to 100 ns a Start of Scan Start Pulse CONVERT l STARTSCAN o E lt gt totp 10 ns minimum T b Scan in Progress Two Conv
42. TWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY COMPUTER HARDWARE MALFUNCTIONS COMPUTER OPERATING SYSTEM SOFTWARE FITNESS FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION INSTALLATION ERRORS SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES TRANSIENT FAILURES OF ELECTRONIC SYSTEMS HARDWARE AND OR SOFTWARE UNANTICIPATED USES OR MISUSES OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED SYSTEM FAILURES ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS INCLUDING THE RISK OF BODILY INJURY AND DEATH SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE TO AVOID DAMAGE INJURY OR DEATH THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES INCLUDING BUT NOT LIMITED TO BACK UP OR SHUT DOWN MECHANISMS BECAUSE EACH END USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MAY USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY
43. a consistent software interface among its different versions so that you can change platforms with minimal modifications to your code Whether you are using LabVIEW Measurement Studio VI Logger or other ADEs your application uses NI DAQ as illustrated in Figure 1 1 1 2 ni com Chapter 1 Introduction LabVIEW Measurement Studio or VI Logger Conventional Programming Environment NI DAQ Driver Software Personal DAQ Hardware Computer or Workstation Figure 1 1 The Relationship Among the Programming Environment NI DAQ and Your Hardware To download a free copy of the most recent version of NI DAQ click Download Software at ni com National Instruments ADE Software LabVIEW features interactive graphics a state of the art interface and a powerful graphical programming language The LabVIEW Data Acquisition VI Library a series of virtual instruments for using Lab VIEW with National Instruments DAQ hardware is included with LabVIEW Measurement Studio which includes LabWindows CVI tools for Visual C and tools for Visual Basic is a development suite that allows you to use ANSI C Visual C and Visual Basic to design your test and measurement software For C developers Measurement Studio includes LabWindows CVI a fully integrated ANSI C application development environment that features interactive graphics and the LabWindows CVI Data Acquisition and Easy I O lib
44. a ground referenced signal source to a channel on a DAQCard 6062E configured in DIFF mode ACH lt 0 7 gt oo So e Ground M Co e Referenced Instrumentation Signal Vs 4 Amplifier Source so ACH lt 8 15 gt 6 oo Measured Voltage Common s o Mode Noise and lt co T Ground ia o Potential 777 So Input Multiplexers AISENSE I O Connector Selected Channel in DIFF Configuration Figure 4 4 Differential Input Connections for Ground Referenced Signals With this type of connection the PGIA rejects both the common mode noise in the signal and the ground potential difference between the signal source and the DAQCard 6062E ground shown as Vem in Figure 4 4 DAQCard 6062E User Manual 4 12 ni com Chapter 4 Signal Connections Differential Connections for Nonreferenced or Floating Signal Sources Figure 4 5 shows how to connect a floating signal source to a channel on a DAQCard 6062E configured in DIFF mode ACH lt 0 7 gt r O 0 0 Bias Resistors co see text o So Floating F Signal af Source a Z PA Instrumentation Amplifier I O Connector ACH lt 8 15 gt slo me Measured m Voltage o So Bias Current 2 e So Return y Path an o So Input Multiplexers gr AIGND Nr o _ o AISENSE Selected C
45. ach AI category The DAQCard 6062E has three input modes nonreferenced single ended NRSE input referenced single ended RSE input and differential DIFF input The single ended input configurations use up to 16 channels The DIFF input configuration uses up to eight channels Input modes are programmed on a per channel basis for multimode scanning For example you can configure the circuitry to scan 12 channels four differentially configured channels and eight single ended channels Table 3 1 describes the three input modes Table 3 1 Available Input Modes for the DAQCard 6062E Configuration Description DIFF A channel configured in DIFF mode uses two analog channel input lines One line connects to the positive input of the DAQCard 6062E programmable gain instrumentation amplifier PGIA and the other connects to the negative input of the PGIA RSE A channel configured in RSE mode uses one analog channel input line which connects to the positive input of the PGIA The negative input of the PGIA is internally connected to AI ground AIGND NRSE A channel configured in NRSE mode uses one analog channel input line which connects to the positive input of the PGIA The negative input of the PGIA connects to the AI sense AISENSE input For more information about the three input modes refer to the Analog Input Signal Connections section of Chapter 4 Signal Connections which contains diagrams showi
46. al purpose counter timer functions two 24 bit counters You can independently configure the groups with timing resolutions of 50 ns or 10 us With the DAQ STC you can interconnect a wide variety of internal timing signals to other internal blocks The interconnection scheme is quite flexible and completely software configurable New capabilities such as buffered pulse generation equivalent time sampling and seamlessly changing the sampling rate are possible What type of 5 V protection does the DAQCard 6062E have The DAQCard 6062E has 5 V lines equipped with a self resetting 250 mA fuse How do I use the DAQCard 6062E with the C API in NI DAQ The NI DAQ User Manual for PC Compatibles contains example code and describes the general programming flow when using the NI DAQ C API For a list of functions that support the DAQCard 6062E refer to the NI DAQ Function Reference Help National Instruments Corporation C 1 DAQCard 6062E User Manual Appendix C Common Questions Refer to ni com manuals for the NI DAQ User Manual for PC Compatibles and refer to ni com downloads to download the version of NI DAQ that your application requires To access the NI DAQ Function Reference Help select Start Programs National Instruments NI DAQ NI DAQ Help Installing and Configuring Which National Instruments documentation should I read first to get started using DAQ software The DAQ Quick Start Guide and the NI DAQ or ADE rele
47. an condition and acquire up to 3 072 channels e Low channel count signal conditioning modules cards and accessories including conditioning for strain gauges and RTDs simultaneous sample and hold circuitry and relays For more specific information about these products refer to the NI catalog at ni com catalog DAQCard 6062E User Manual 1 4 ni com Chapter 1 Introduction Custom Cabling National Instruments offers cables and accessories for you to prototype your application or to use if you frequently change DAQCard 6062E interconnections If you want to develop your own cable however the following guidelines may be useful e For the AI signals shielded twisted pair wires for each AI pair yield the best results assuming that you use differential inputs Tie the shield for each signal pair to the ground reference at the source e You should route the analog lines separately from the digital lines e When using a cable shield use separate shields for the analog and digital halves of the cable Failure to do so results in noise coupling into the analog signals from transient digital signals National Instruments recommends the SHC68 68 EP cable The SHC68 68 EP cable is a shielded latching 68 pin cable that mates to the DAQCard I O connector This cable connects to the DAQCard 68 position VHDCI connector on one end and terminates with a 68 pin 0 050 series D type connector on the other end Unpacking The DAQCar
48. ase notes documentation are good places to start What version of NI DAQ must I have to program the DAQCard 6062E You must have version 6 7 or later What is the best way to test my DAQCard without having to program the DAQCard If you are using Windows MAX has a Test Panel option that is available by selecting Devices and Interfaces and then selecting the device The Test Panels are excellent tools for performing simple functional tests of the device such as AI DIO and counter timer tests Analog Input and Output I m using the DAQCard in DIFF mode and I have connected a DIFF input signal but the readings are random and drift rapidly What s wrong Check the ground reference connections The signal may be referenced to a level that is considered floating with reference to the DAQCard ground reference Even if you are in differential mode the signal must still be referenced to the same ground level as the DAQCard reference There are various methods of achieving the same ground level while maintaining a high common mode rejection ratio CMRR These methods are outlined in Chapter 4 Signal Connections DAQCard 6062E User Manual C 2 ni com Appendix C Common Questions Can I sample across a number of channels on a DAQCard 6062E while each channel is being sampled at a different rate NI DAQ features a function called SCAN Sequence Setup which allows for multirate scanning of the AI channels Refer to the NJ DAQ Funct
49. ch A D conversion in the scanning modes when enabled The low to high edge indicates when the input signal can be removed from the input or switched to another signal EXTSTROBE DGND Output External Strobe This output can be toggled under software control to latch signals or trigger events on external devices National Instruments Corporation 4 3 DAQCard 6062E User Manual Chapter 4 Signal Connections Table 4 2 1 0 Connector Signal Descriptions Continued Signal Name Reference Direction Description PFIO TRIG1 DGND Input PFIO Trigger 1 As an input this is a PFI or the source for the hardware analog trigger PFI signals are explained in the Connecting Timing Signals section The hardware analog trigger is explained in the Analog Trigger section of Chapter 3 Hardware Overview Output As an output this is the TRIG1 AI Start Trigger signal In posttriggered DAQ sequences a low to high transition indicates the initiation of the acquisition sequence In pretrigger applications a low to high transition indicates the initiation of the pretrigger conversions PFI1 TRIG2 DGND Input PFI1 Trigger 2 As an input this is a PFI Output As an output this is the TRIG2 AI Stop Trigger signal In pretrigger applications a low to high transition indicates the initiation of the posttrigger conversions TRIG2 is not used in posttrigger applications PFI2 CONVERT DGND Input PFI2
50. d 6062E is shipped in an antistatic package to prevent electrostatic damage to the device Electrostatic discharge can damage several components on the device UN Caution Never touch the exposed pins of connectors To avoid such damage in handling the device take the following precautions e Ground yourself using a grounding strap or by holding a grounded object e Touch the antistatic package to a metal part of the computer chassis before removing the device from the package National Instruments Corporation 1 5 DAQCard 6062E User Manual Chapter 1 Introduction Remove the DAQCard 6062E from the package and inspect the device for loose components or any sign of damage Notify NI if the device appears damaged in any way Do not install a damaged device into the computer Store the DAQCard 6062E in the antistatic package when not in use Safety Information DAQCard 6062E User Manual The following section contains important safety information that you must follow when installing and using the product Do not operate the product in a manner not specified in this document Misuse of the product can result in a hazard You can compromise the safety protection built into the product if the product is damaged in any way If the product is damaged return it to National Instruments for repair Do not substitute parts or modify the product except as described in this document Use the product only with the chassis modules access
51. d register gate AIGATE Signal Any PFI pin can externally input the AIGATE signal which is not available as an output on the I O connector The AIGATE signal can mask off scans in a DAQ sequence You can configure the PFI pin you select as the source for the AIGATE signal in level detection mode In the level detection mode if AIGATE is active the STARTSCAN signal is masked off and no scans can occur You can configure the polarity selection for the PFI pin for either active high or active low The AIGATE signal can neither stop a scan in progress nor continue a previously gated off scan in other words once a scan has started AIGATE does not gate off conversions until the beginning of the next scan and conversely if conversions are gated off AIGATE does not gate them back on until the beginning of the next scan SISOURCE Signal Any PFI pin can externally input the SISOURCE signal which is not available as an output on the I O connector The onboard scan interval SI counter uses the SISOURCE signal as a clock to time the generation of the STARTSCAN signal You must configure the PFI pin you select as the source for SISOURCE in the level detection mode You can configure the polarity selection for the PFI pin for either active high or active low The maximum allowed frequency is 20 MHz with a minimum pulse width of 23 ns high or low There is no minimum frequency limitation Either the 20 MHz or 100 kHz internal timebase generat
52. dards for safety and electrical equipment for measurement control and laboratory use e EN 61010 1 1993 A2 1995 IEC 61010 1 1990 A2 1995 e UL 3101 1 1993 UL 3111 1 1994 UL 3121 1998 e CAN CSA c22 2 no 1010 1 1992 A2 1997 Electromagnetic Compatibility CE C Tick and FCC Part 15 Class A Compliant Electrical emissions ssseeeeeeeeerrrree EN 55011 Class A at 10 m FCC Part 15A above 1 GHz Electrical immunity ss Evaluated to EN 61326 1997 A1 1998 Table 1 Sy Note For full EMC compliance you must operate this device with shielded cabling In addition all covers and filler panels must be installed Refer to the DoC for this product for any additional regulatory compliance information To obtain the DoC for this product click Declaration of Conformity at ni com hardref nsf This Web site lists the DoCs by product family Select the appropriate product family followed by your product and a link to the DoC appears in Adobe Acrobat format Click the Acrobat icon to download or read the DoC DAQCard 6062E User Manual A 10 ni com Optional Cable Connector Descriptions This appendix describes the connectors on the optional cables for the DAQCard 6062E Figure B 1 shows the pin assignments for the 68 pin E Series connector This connector is available when you use the SHC68 68 EP cable assembly National Instruments Corporation B 1 DAQCard 6062E User Manual Appendix B DAQCard 6062E User Manual Optio
53. delay IRQ ISA DAQCard 6062E User Manual general purpose counter up down signal See referenced signal sources hour hexadecimal lag between making a change and the effect of the change hertz input output the transfer of data to from a computer system involving communications channels operator interface devices and or data acquisition and control interfaces input counter current output high current output low relative accuracy amount of time that passes between sampling consecutive channels The interchannel delay must be short enough to alloy sampling of all the channels in the channel list within the scan interval The greater the interchannel delay the more time the PGIA is allowed to settle before the next channel is sampled The interchannel delay is regulated by the CONVERT signal interrupt request signal Industry Standard Architecture G 6 ni com LED LSB MB MIO MSB NC NI NI DAQ NRSE OUT PC PCI PCMCIA National Instruments Corporation Glossary light emitting diode least significant bit meter megabytes of memory multifunction I O most significant bit not connected internally National Instruments NI driver software for DAQ hardware nonreferenced single ended output signal personal computer Peripheral Component Interconnect a high performance expansion bus architecture originally developed by Intel to replace ISA and EISA It is achievin
54. e that the device is properly detected Installing the Hardware The following are general installation instructions Consult the computer user manual or technical reference manual for specific instructions and warnings about installing new devices Refer to Figure 2 1 when installing the DAQCard 6062E 1 Power off and unplug the computer 2 Insert the PCMCIA bus connector of the DAQCard 6062E in any available Type II PC Card slot until the connector is firmly seated The DAQCard 6062E has two connectors a 68 pin PCMCIA bus connector on one end and a 68 pin I O connector on the other end The DAQCard 6062E and the I O cable are keyed so that you can only insert it one way 3 Visually verify the installation by making sure that the DAQCard 6062E is fully inserted into the slot National Instruments Corporation 2 1 DAQCard 6062E User Manual Chapter 2 Installing and Configuring the DAQCard 6062E 4 Attach the I O cable You can connect the DAQCard 6062E to 68 and 50 pin accessories You can use the SHC68 68 EP to connect directly to 68 pin accessories or you can use the SHC68 68 EP in conjunction with the 68M 50F adapter to connect to 50 pin accessories Refer to Appendix B Optional Cable Connector Descriptions for more information NS Note Be careful not to put strain on the I O cable when inserting it into and removing it from the DAQCard 6062E Always grasp the cable by the connector you are plugging or unplugging Nev
55. e gain error from loading down the source ection Considerations In a single ended connection the AI signal is referenced to a ground that can be shared with other input signals The input signal connects to the positive input of the PGIA and the ground connects to the negative input of the PGIA 4 14 ni com Chapter 4 Signal Connections When every channel is configured for single ended input up to 16 AI channels on the NI 6052E are available Use single ended input connections for any input signal that meets the following conditions e The input signal is high level greater than 1 V e The leads connecting the signal to the device are less than 3 m 10 ft e The input signal can share a common reference point with other signals DIFF input connections are recommended for greater signal integrity for input signals that do not meet the preceding conditions Using application software you can configure the NI 6052E channels for RSE or NRSE mode RSE mode is used for floating signal sources In this case the NI 6052E provides the reference ground point for the external signal NRSE mode is used for ground referenced signal sources In this case the external signal supplies its own reference ground point and the device should not supply one In single ended configurations more electrostatic and magnetic noise couples into the signal connections than in the DIFF configuration The coupling is a result of signal path differenc
56. e selected edge of CONVERT initiates an A D conversion As an output CONVERT reflects the actual convert pulse that connects to the ADC even if the conversions are externally generated by another PFI The output is an active low pulse with a pulse width of 50 to 100 ns This signal is set to high impedance at startup Figures 4 19 and 4 20 show the timing requirements for CONVERT i tw i f e Rising Edge Polarity Falling Edge Polarity tw 10 ns minimum Figure 4 19 CONVERT Input Signal Timing tw 50 to 150 ns Figure 4 20 CONVERT Output Signal Timing The ADC switches to hold mode within 60 ns of the selected edge This hold mode delay time is a function of temperature and does not vary from one conversion to the next Separate the CONVERT pulses by at least one conversion period 4 28 ni com Chapter 4 Signal Connections The SI2 counter on the DAQCard 6062E normally generates CONVERT unless you select some external source The counter is started by the STARTSCAN signal and continues to count down and reload itself until the scan is finished It then reloads itself in readiness for the next STARTSCAN pulse A D conversions generated by either an internal or external CONVERT signal are inhibited unless they occur within a DAQ sequence Scans occurring within a DAQ sequence may be gated by either the hardware signal AIGATE or the software comman
57. edance at startup Field Wiring Considerations DAQCard 6062E User Manual Environmental noise can seriously affect the accuracy of measurements made with the DAQCard 6062E if you do not take proper care when running signal wires between signal sources and the DAQCard 6062E The following recommendations apply mainly to AI signal routing to the DAQCard 6062E although they also apply to signal routing in general You can minimize noise pickup and maximize measurement accuracy by taking the following precautions e Use differential AI connections to reject common mode noise e Use individually shielded twisted pair wires to connect AI signals to the DAQCard 6062E With this type of wire the signals attached to the CH and CH inputs are twisted together and then covered with a shield You then connect this shield only at one point to the signal source ground This kind of connection is required for signals traveling through areas with large magnetic fields or high electromagnetic interference e Route signals to the DAQCard 6062E carefully Keep cabling away from noise sources The most common noise source in a 4 40 ni com Chapter 4 Signal Connections computer based acquisition system is the video monitor Separate the monitor from the analog signals as much as possible The following recommendations apply for all signal connections to the DAQCard 6062E e Separate DAQCard 6062E signal lines from high current or high voltage
58. ees 12 bits guaranteed after calibration Offset error After calibration cccccceeeeseeerees 1 0 mV max Before calibration 0 cccccscseeees 200 mV max Gain error relative to internal reference After calibration eee 0 01 of output max Before calibration ee 0 7 of output max Gain error relative to external reference ccccssccceeesseeeees 0 5 of output max not adjustable Voltage Output Ran gesiiicecisteastveea cas rn selec tenes 10 V tEXTREF software selectable Output coupling eee DC Output impedance 0 0 eee eee 0 1 Q max Current drii Vensanas iinis 5 mA max Protection anmenn E Short circuit to ground Power on state Wu u u sssseseerreeerrerrsrenenee 0 V 200 mV External reference input RAN sect avail eet 11 V Overvoltage protection 0 0 0 0 25 V powered on 15 V powered off National Instruments Corporation A 5 DAQCard 6062E User Manual Appendix A Specifications Digital 1 0 DAQCard 6062E User Manual Input impedance 0 0 eee 10 KQ Bandwidth 3 dB s 50 kHz Dynamic Characteristics Settling time for full scale step 3 us to 0 5 LSB accuracy DIEW Tale es HY eee dees 20 V us NOISE Heiss hed Seeds ied ondere 200 UV ms DC to 1 MHz Glitch energy at midscale transition Magnitude Reglitching disabled 20 mV Reglitching enabled 4 mV Durations 1 5 u
59. eeseeasenseeaeenes 3 6 Analog Output Reglitch Selection eee ceeececseceeeseeeeseeseeseeeseenseeaeenes 3 6 Analog Imp Seti cis ctecce E A tesa entail PAN sii eis ete ander 3 7 Digital DO IAEA E RENSE A ENDER ES E ES E Vote ots deal SER EJ Me ete death 3 10 National Instruments Corporation vil DAQCard 6062E User Manual Contents Timing Signal Routing icici tersier ise ien engene sene 3 11 Programmable Function Inputs 20 0 0 eee cece eeeeseeeeeeeeeesceseesseeaeceeeeseeeseeaeenaes 3 12 DAQ ard 6062E CLOCKS esse stscceseenislecbaeket E a E EEA EER 3 12 Chapter 4 Signal Connections VO Connector deson a a E T E EET as 4 1 Analog Input Signal ConnectionSs sessesseeeseseestsrrsrsseereseststertsresrsrestesensentesreresresestees 4 7 Types of S a O OTO E S nastiest eid ea A ee ee 4 9 Bloating Signal SOULCes eee E a e E E E E E A i 4 9 Ground Referenced Signal Sources sessessesesseeesersessrsrrsresrsresreresresrnsrsresreee 4 9 Input Confisurati ons oestro iiei gier are evi deres T estes seks sen 4 9 Differential Connection Considerations DIFF Input Configuration 4 11 Differential Connections for Ground Referenced Signal SOULCES isso os eee et eet rede eek 4 12 Differential Connections for Nonreferenced or Floating Signal Sources 2 seit hee Ailend dad onee mals a 4 13 Single Ended Connection Considerations 00 0 0 cc cceeseseeceseeseeeseeseeeseeneeenees 4 14 Single Ended Connections for Floating Signal Source
60. el HIVDCE ES M jeroen eai 330 mA typ in operational mode 450 mA max in operational mode 100 mA in power down mode Power available at I O connectotr 4 65 to 5 25 V at 250 mA S Notes These power usage figures do not include the power used by external devices that are connected to the fused supply present on the I O connector Under ordinary operation the DAQCard has a current requirement of 320 350 mA but if the analog inputs being sampled are overdriven at high gains or if the analog inputs are left floating when the DAQCard is not in use or if the analog outputs are loaded down the current may increase to 450 mA Physical PC c rd CY Pe 320 longer Type II VO Connectors usus eseas 68 position VHDCI female connector Environmental Operating temperature 0 to 50 C internal device temperature as measured by internal termperature sensor Storage temperature oe 20 to 70 C iz Hot ate FIN seige nnn 5 to 90 RH noncondensing Maximum altitude 1 2 000 meters Pollution degree indoor use only 2 Maximum Working Voltage Maximum working voltage refers to the signal voltage plus the common mode voltage Channel to earth eee eeeeeeeees 42 V Installation Category I Channel to channel 0 0 0 eee 42 V Installation Category II National Instruments Corporation A 9 DAQCard 6062E User Manual Appendix A Specifications Safety The DAQCard 6062E meets the requirements of the following stan
61. ence in which case the user will be required to correct the interference at his own expense Canadian Department of Communications This Class A digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe A respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Class B Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technicia
62. ents reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult National Instruments if errors are suspected In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cover damages defects malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner
63. er pull directly on the I O cable to unplug it from the DAQCard 6062E 5 Plug in and power on the computer The DAQCard 6062E is now installed You are ready to make the appropriate connections to the I O connector cable as described in Chapter 4 Signal Connections DAQCard 6062E User Manual 2 2 ni com Chapter 2 Installing and Configuring the DAQCard 6062E Figure 2 1 shows an example of a typical configuration 1 Portable Computer 3 DAQCard 6062E 5 I O Signals 2 PCMCIA Socket 4 SHC68 68 EP Figure 2 1 A Typical Configuration for the DAQCard 6062E Configuring the Hardware Because of the NI standard architecture for data acquisition the DAQCard 6062E is completely software configurable Data acquisition related configuration which you must perform includes such settings as AI coupling and range and others You can modify these settings using NI DAQ or application level software such as LabVIEW and Measurement Studio To configure the device in Measurement amp Automation Explorer MAX refer to the DAQ Quick Start Guide or to the NI DAQ User Manual for PC Compatibles National Instruments Corporation 2 3 DAQCard 6062E User Manual Hardware Overview This chapter presents an overview of the hardware functions on the DAQCard 6062E Figure 3 1 shows the block diagram for the DAQCard 6062E
64. ersions per Scan Figure 4 18 STARTSCAN Output Signal Timing The CONVERT pulses are masked off until the DAQCard 6062E generates the STARTSCAN signal If you are using internally generated conversions the first CONVERT will appear when the onboard SI2 counter reaches zero If you select an external CONVERT the first external pulse after STARTSCAN generates a conversion STARTSCAN pulses should be separated by at least one scan period A counter on the DAQCard 6062E internally generates the STARTSCAN signal unless you select some external source This counter is started by the TRIG1 signal and is stopped either by software or by the sample counter Scans generated by either an internal or external STARTSCAN signal are inhibited unless they occur within a DAQ sequence Scans occurring within a DAQ sequence may be gated by either the hardware signal AIGATE or the software command register gate National Instruments Corporation 4 27 DAQCard 6062E User Manual Chapter 4 Signal Connections DAQCard 6062E User Manual CONVERT Signal Any PFI pin can externally input the CONVERT signal which is available as an output on the PFI2 CONVERT pin Refer to Figures 4 11 and 4 12 for the relationship of CONVERT to the DAQ sequence As an input CONVERT is configured in the edge detection mode You can select any PFI pin as the source for CONVERT and configure the polarity selection for either rising or falling edge Th
65. es Magnetic coupling is proportional to the area between the two signal conductors Electrical coupling is a function of how much the electric field differs between the two signal conductors National Instruments Corporation 4 15 DAQCard 6062E User Manual Chapter 4 Signal Connections Single Ended Connections for Floating Signal Sources RSE Configuration Figure 4 6 shows how to connect a floating signal source to a channel on a DAQCard 6062E configured for RSE mode ACH lt 0 15 gt come Floating ig Signal Vs Source OF So hd Instrumentation Amplifier o So Input Multiplexers 0 e AISENSE PGIA Measured Voltage m ol I O Connector T AIGND Selected Channel in RSE Configuration DAQCard 6062E User Manual Figure 4 6 Single Ended Input Connections for Nonreferenced or Floating Signals Single Ended Connections for Grounded Signal Sources NRSE Configuration To measure a grounded signal source with a single ended configuration you must configure the DAQCard 6062E for the NRSE mode The signal then connects to the positive input of the DAQCard PGIA and the signal local ground reference connects to the negative input of the PGIA The ground point of the signal should therefore connect to the AISENSE pin Any potential difference between the DAQCard 6062E ground and the signal ground appears as a common mode signal at
66. es SISOURCE unless you select some external source Figure 4 21 shows the timing requirements for SISOURCE National Instruments Corporation 4 29 DAQCard 6062E User Manual Chapter 4 S Signal Connections tp 50 ns minimum ty 23 ns minimum Figure 4 21 SISOURCE Signal Timing SCANCLK Signal SCANCLK is an output only signal that generates a pulse with the leading edge occurring approximately 50 to 100 ns after an A D conversion begins The polarity of this output is software selectable but is typically configured so that a low to high leading edge can clock external AI multiplexers indicating when the input signal has been sampled and can be removed This signal has a 400 to 500 ns pulse width and is software enabled Note When using NI DAQ SCANCLK polarity is low to high and you cannot change it programmatically DAQCard 6062E User Manual Figure 4 22 shows the timing for SCANCLK CONVERT ty SCANCLK lt pia gt ta 50 to 100 ns tw 400 to 500 ns Figure 4 22 SCANCLK Signal Timing 4 30 ni com Chapter 4 Signal Connections EXTSTROBE Signal EXTSTROBE is an output only signal that generates either a single pulse or a sequence of eight pulses in the hardware strobe mode An external device can use this signal to latch signals or to trigger events In the single pulse mode software controls the level of the EXTSTROBE signal Both 10 us and 1 2 us clock
67. ese connections are available when the selected channel is configured in DIFF mode In DIFF mode the AI channels are paired with ACH lt i gt as the signal input and ACH lt i 8 gt as the signal reference For example ACHO is paired with ACH8 ACH 1 is paired with ACH9 and so on The input signal connects to the positive input of the PGIA and its reference signal or return connects to the negative input of the PGIA When you configure a channel for differential input each signal uses two multiplexer inputs one for the signal and one for the channel reference signal Therefore with a differential configuration for every channel up to eight AI channels are available You should use differential input connections for channels that meet any of the following conditions e The input signal is low level less than 1 V e The leads connecting the signal to the DAQCard 6062E are greater than 3 m 10 ft e The input signal requires a separate ground reference point or return signal e The signal leads travel through noisy environments Differential signal connections reduce picked up noise and increase common mode noise rejection Differential signal connections also allow input signals to float within the common mode limits of the PGIA National Instruments Corporation 4 11 DAQCard 6062E User Manual Chapter 4 Signal Connections Differential Connections for Ground Referenced Signal Sources Figure 4 4 shows how to connect
68. ferential connections of floating signal sources 4 13 signal summary table 4 5 AISENSE signal analog input connections 4 7 description table 4 3 signal summary table 4 5 analog input See also input configurations dither 3 4 exceeding maximum ranges and ratings caution 4 7 input mode 3 2 input polarity and range 3 3 multiple channel scanning considerations 3 5 questions about C 2 selection considerations 3 4 signal connections 4 7 analog input specifications amplifier characteristics A 3 National Instruments Corporation dynamic characteristics A 3 input characteristics A 1 stability A 4 transfer characteristics A 2 analog output analog output reference selection 3 6 analog output reglitch selection 3 6 questions about C 2 signal connections 4 17 analog output specifications dynamic characteristics A 6 output characteristics A 4 stability A 6 transfer characteristics A 5 voltage output A 5 analog trigger above high level analog triggering mode figure 3 8 below low level analog triggering mode figure 3 8 block diagram 3 7 high hysteresis analog triggering mode figure 3 9 inside region analog triggering mode figure 3 9 low hysteresis analog triggering mode figure 3 10 overview 3 7 specifications A 7 AOGND signal analog output signal connections 4 17 description table 4 3 signal summary table 4 5 bipolar input 3 3 block diagram 3
69. g widespread acceptance as a standard for PCs and work stations it offers a theoretical maximum transfer rate of 132 MB s Personal Computer Memory Card Association G 7 DAQCard 6062E User Manual Glossary PFI PFIO TRIG1 PFI1 TRIG2 PFI2 CONVERT PFI3 GPCTR1 SOURCE PFI4 GPCTR1_GATE PFI5 UPDATE PFI6 WFTRIG PFI7 STARTSCAN PFI8 GPCTRO_SOURCE PFI9 GPCTRO_GATE PGIA ppm precision pu PWRDOWN R RAM range REF referenced signal sources DAQCard 6062E User Manual Programmable Function Input PFIO trigger 1 PFI1 trigger 2 PFI2 convert PFI3 general purpose counter source PFI4 general purpose counter gate PFI5 update PFI6 waveform trigger PFI7 start of scan PFI8 general purpose counter 0 source PFI9 general purpose counter 0 gate Programmable Gain Instrumentation Amplifier parts per million measure of the stability of an instrument and its capability to give the same measurement over and over again for the same input signal pull up power down signal random access memory the maximum and minimum parameters between which a sensor instrument or device operates with a specified set of characteristics reference signal sources with voltage signals that are referenced to a system ground such as the earth or a building ground Also called grounded signal sources G 8 ni com reglitch rms RSE RTD RTSI S SC SCANCLK scan interval scan rate SCXI SE settling time SI
70. hannel in DIFF Configuration Figure 4 5 Differential Input Connections for Nonreferenced Signals Figure 4 5 shows two bias resistors connected in parallel with the signal leads of a floating signal source If you do not use the resistors and the source is truly floating the source is unlikely to remain within the common mode signal range of the PGIA and the PGIA saturates causing erroneous readings You must reference the source to AIGND The easiest way is to connect the positive side of the signal to the positive input of the National Instruments Corporation 4 13 DAQCard 6062E User Manual Chapter 4 Signal Connections Single Ended Conn DAQCard 6062E User Manual PGIA and connect the negative side of the signal to AIGND as well as to the negative input of the PGIA without any resistors This connection works well for DC coupled sources with low source impedance less than 100 Q However for larger source impedances this connection leaves the differential signal path significantly off balance Noise that couples electrostatically onto the positive line does not couple onto the negative line because it is connected to ground Therefore this noise appears as a differential mode signal instead of a common mode signal and the PGIA does not reject it In this case instead of directly connecting the negative line to AIGND connect it to AIGND through a resistor that is about 100 times the equivalent source impedance The resi
71. he highValue highValue lowValue Trigger l j l E Figure 3 6 Inside Region Analog Triggering Mode In high hysteresis analog triggering mode as shown in Figure 3 7 the trigger is generated when the signal value is greater than highValue with the hysteresis specified by lowValue highValue lowValue Trigger Figure 3 7 High Hysteresis Analog Triggering Mode National Instruments Corporation 3 9 DAQCard 6062E User Manual Chapter 3 Hardware Overview In low hysteresis analog triggering mode as shown in Figure 3 8 the trigger is generated when the signal value is less than lowValue with the hysteresis specified by highValue highValue lowValue ____ __ Trigger alr t Figure 3 8 Low Hysteresis Analog Triggering Mode The analog trigger circuit generates an internal digital trigger based on the AI signal and the user defined trigger levels Any of the timing sections of the DAQ STC including the AI AO and general purpose counter timer sections can use this digital trigger For example the AI section can be configured to acquire n scans after the AI signal crosses a specific threshold Digital 1 0 The DAQCard 6062E contains eight lines of digital I O for general purpose use You can individually configure each line through software for either input or output At system startup and reset the DIO por
72. he environment in which it will be used Self Calibration The DAQCard 6062E can measure and correct for almost all calibration related errors without any external signal connections NI DAQ provides a self calibration method you can use This self calibration process which generally takes less than a minute is the preferred method of assuring accuracy in your application Initiate self calibration to minimize the effects of any offset gain and linearity drifts particularly those effects due to warmup Immediately after self calibration the only significant residual calibration error could be gain error due to time or temperature drift of the onboard voltage reference This error is addressed by external calibration which is discussed in the following section If you are interested primarily in relative measurements you can ignore a small amount of gain error and self calibration should be sufficient External Calibration DAQCard 6062E User Manual The DAQCard 6062E has an onboard calibration reference to ensure the accuracy of self calibration These specifications are listed in Appendix A Specifications The reference voltage is measured at the factory and stored in the EEPROM for subsequent self calibrations This voltage is stable enough for most applications but if you are using the DAQCard 6062E at an extreme temperature or if the onboard reference has not been measured for a year or more you may wish to externally ca
73. ill start only when the AO waveform generation starts 4 Initiate AO waveform generation How can I use the STARTSCAN and CONVERT signals on the DAQCard 6062E to sample the AI channel s NIE Series devices use the STARTSCAN and CONVERT signals to perform interval sampling As Figure C 2 shows STARTSCAN controls the scan interval which is determined by the following equality 1 scan rate scan interval Channel 0 1 Channel 1 ja Interchannel Delay Scan Interval ef gt Figure C 2 Interchannel Delay and Scan Interval National Instruments Corporation C 5 DAQCard 6062E User Manual Appendix C Common Questions CONVERT controls the interchannel delay which is determined by the following equality 1 i t interchannel delay OG LS ELG This method allows multiple channels to be sampled relatively quickly in relationship to the overall scan rate providing a nearly simultaneous effect with a fixed delay between channels Timing and Digital 1 0 DAQCard 6062E User Manual What types of triggering can be implemented in hardware on my DAQCard 6062E Digital and analog triggering are hardware supported on the DAQCard 6062E Will the counter timer applications that I wrote previously work with the DAQ STC If you are using the NI DAQ with LabVIEW some of your applications drawn using the CTR VIs will still run However there are many differences in the counters be
74. ing averaging to increase the resolution of the DAQCard 6062E such as calibration or spectral analysis In such applications noise modulation is decreased and differential linearity is improved by adding dither When taking DC measurements such as when checking the DAQCard 6062E calibration you should enable dither and average about 1 000 points to take a single reading This process removes the effects of quantization and reduces measurement noise resulting in improved resolution For high speed applications not involving averaging or spectral analysis you may want to disable the dither to reduce noise You enable and disable the dither circuitry through software Figure 3 2 illustrates the effect of dither on signal acquisition Figure 3 2a shows a small 4 LSB sine wave acquired with dither off The quantization of the ADC is clearly visible Figure 3 2b shows what happens when 50 such acquisitions are averaged together quantization is still plainly visible In Figure 3 2c the sine wave is acquired with dither on A considerable amount of noise is visible but averaging about 50 such acquisitions as shown in Figure 3 2d eliminates both the added noise and the effects of quantization Dither has the effect of forcing quantization noise to become a zero mean random variable rather than a deterministic function of the input signal 3 4 ni com Chapter 3 Hardware Overview
75. ingle ended and differential measurements and considerations for measuring both types of signal sources Figure 4 3 summarizes the recommended input configuration for both types of signal sources National Instruments Corporation 4 9 DAQCard 6062E User Manual Chapter 4 Signal Connections Input Signal Source Type Floating Signal Source Not Connected to Building Ground Grounded Signal Source Examples e Ungrounded Thermocouples e Signal Conditioning with Isolated Outputs e Battery Devices Examples e Plug in Instruments with Nonisolated Outputs ACH OT ow gt Differential BE DIFF R AIGND See text for information on bias resistors NOT RECOMMENDED Single Ended Ground Referenced RSE Ground loop losses Vg are added to measured signal ACH ACH j V4 AISENSE gt Oy amp AISENSE gt Single Ended Nonreferenced NRSE R WWW AIGND AIGND See text for information on bias resistors DAQCard 6062E User Manual Figure 4 3 Summary of Analog Input Connections 4 10 ni com Chapter 4 Signal Connections Differential Connection Considerations DIFF Input Configuration A differential connection is one in which the AI signal has its own reference signal or signal return path Th
76. ion Reference Online Help for more details Can I programmatically enable channels on the DAQCard 6062E to acquire in different modes For example can I configure ACH 0 in DIFF input mode and ACH1 in RSE input mode Channels on the DAQCard 6062E can be enabled to acquire in different modes but different pairs of channels are used in different modes In the example configuration given above ACHO and ACH8 are configured in DIFF mode and ACH 1 and AIGND are configured in RSE mode In this configuration ACH8 is not used in a single ended configuration To enable multiple mode scanning in LabVIEW use the coupling and input configuration cluster input of the AI Config VI This input has a one to one correspondence with the channel array input of the AI Config VI You must list all channels either individually or in groups of channels with the same input configuration For example if you want ACHO to be differential and ACH1 and ACH2 to be RSE Figure C 1 demonstrates how to program this configuration in LabVIEW input config no change 0 hena change 7 differential ref single ended lt Yj channels 0 Figure C 1 Configuring Channels for Different Acquisition Modes in LabVIEW To enable multiple mode scanning using NI DAQ functions call the AI_Configure function for each channel National Instruments Corporation C 3 DAQCard 6062E User Manual Appendix C Common Questions DAQCard 6062E User
77. ion timing 2 connections 4 31 GPCTRO_OUT signal 4 36 GPCTRO_SOURCE signal 4 34 National Instruments Corporation 1 7 DAQCard 6062E User Manual Index types of signal sources floating 4 9 ground referenced 4 9 waveform generation timing connections UISOURCE signal 4 33 UPDATE signal 4 32 WFTRIG signal 4 31 single ended connections description 4 14 floating signal sources RSE 4 16 grounded signal sources NRSE 4 16 when to use 4 15 SISOURCE signal 4 29 software drivers D 1 software programming choices National Instruments application software 1 3 NI DAQ driver software 1 2 specifications analog input amplifier characteristics A 3 dynamic characteristics A 3 input characteristics A 1 stability A 4 transfer characteristics A 2 analog output dynamic characteristics A 6 output characteristics A 4 stability A 6 transfer characteristics A 5 voltage output A 5 digital I O A 6 digital trigger A 8 environment A 9 physical A 9 power requirements A 9 timing I O A 7 STARTSCAN signal See also PFI7 STARTSCAN signal input timing figure 4 26 DAQCard 6062E User Manual 1 8 output timing figure 4 27 timing connections 4 26 support technical D 1 system integration services D 1 T technical support D 1 telephone technical support D 1 timebase clocks 3 12 timing connections data acquisition timing connections AIGATE signal 4 29 CONVERT signal 4 28 EXTSTROBE signal 4 31
78. lar only Analog Output Reference Selection You can connect each DAC to the DAQCard 6062E internal reference of 10 V or to the external reference signal connected to the external reference EXTREF pin on the I O connector This signal applied to EXTREF should be between 11 and 11 V You do not need to configure both channels for the same mode Analog Output Reglitch Selection DAQCard 6062E User Manual In normal operation a DAC glitches whenever it is updated with a new value The glitch energy differs from code to code and appears as distortion in the frequency spectrum Each analog output of the DAQCard 6062E contains a reglitch circuit that generates uniform glitch energy at every code rather than large glitches at the major code transitions The uniform glitch energy appears as a multiple of the update rate in the frequency spectrum Notice that this reglitch circuit does not elimiate the glitches it only makes the more uniform in size Reglitching is normally disabled at startup and can be independently enabled for each channel using software 3 6 ni com Analog Trigger Chapter 3 Hardware Overview In addition to supporting internal software triggering and external digital triggering to initiate a DAQ sequence the DAQCard 6062E also supports analog triggering You can configure the analog trigger circuitry to accept either a direct analog input from the PFIO TRIG1 pin on the I O connector or a postgain signal from the
79. ler 24 bits 4 bits TTL CMOS 20 MHz 100 kHz 10 MHz 100 kHz 0 01 20 MHz 10 ns in edge detection mode 10 ns in edge detection mode Interrupts programmed I O ACH lt 0 15 gt external trigger PFIO TRIG1 full scale internal 10 V external Positive or negative software selectable DAQCard 6062E User Manual Appendix A Specifications Calibration DAQCard 6062E User Manual Resolution es isnende IY SLCLESIS H cevdievsiesesavevte ends alen bebor eee Bandwidth 3 dB secs External input PFIO TRIG1 Impedance seriet n Coupling iiinis on PrOteCtlON ss saisssnk essens Digital Trigger Compatibility Wu u u dssesrerrrerserersenenner RESPONSE ST are a e ark a aner Pulse Width rinane Recommended warm up time Calibration interval 1 External calibration reference Onboard calibration reference LEVEL saae senere canes Temperature coefficient Long term stability A 8 8 bits 1 in 256 Programmable 500 kHz internal 2 5 MHz external 12 KQ DC 35 V powered off 0 5 to Vcc when configured as a digital signal 35 V when configured as an analog trigger signal or disabled TTL Rising or falling edge 10 ns min 15 min 1 year gt 6 and lt 9 999 V 5 000 V 2 5 mV actual value stored in EEPROM 5 ppm C max 15 ppm 1 000 h ni com Appendix A Specifications Power Requirement from PCMCIA 1 0 Chann
80. librate the DAQCard 6062E An external calibration refers to calibrating the DAQCard 6062E with a known external reference rather than relying on the onboard reference Redetermining the value of the onboard reference is part of this process and you can save the results in the EEPROM so that you should not have to perform an external calibration often You can externally calibrate the DAQCard 6062E by calling the NI DAQ calibration function 5 2 ni com Chapter 5 Calibration To externally calibrate the DAQCard 6062E use a very accurate external reference The reference should be several times more accurate than the DAQCard 6062E itself For example to calibrate the 12 bit DAQCard 6062E the external reference should be at least 0 005 50 ppm accurate For a detailed calibration procedure for the DAQCard 6062E refer to the E Series Calibration Procedure by clicking Manual Calibration Procedures at ni com calibration Other Considerations The CalDACs adjust the gain error of each AO channel by adjusting the value of the reference voltage supplied to that channel This calibration mechanism is designed to work only with the internal 10 V reference Thus in general it is not possible to calibrate the AO gain error when using an external reference In this case it is advisable to account for the nominal gain error of the AO channel either in software ow with external hardware Refer to Appendix A Specifications for AO gain err
81. ltage to another any DAC produces glitches due to released charges The largest glitches occur when the most significant bit MSB of the D A code switches A lowpass deglitching filter can help to remove some of these glitches depending on the frequency and nature of the output signal The DAQCard 6062E has built in reglitchers which can be software enabled on its AO channels Can I synchronize a one channel AI data acquisition with a one channel AO waveform generation on the DAQCard 6062E Yes One way to synchronize the channels is to use the waveform generation timing pulses to control the AI data acquisition To do this follow steps 1 through 4 in addition to the usual steps for data acquisition and waveform generation configuration 1 Enable the PFI5 line for output as follows Ifyou are using NI DAQ call Select_Signal deviceNumber ND PFI 5 ND OUT UPDATE ND HIGH TO LOW C 4 ni com Appendix C Common Questions e Ifyou are using LabVIEW invoke Route Signal VI with signal name set to PFI5 and signal source set to AO Update 2 Set up data acquisition timing so that the timing signal for A D conversion comes from PFI5 as follows e If you are using NI DAQ call Select Signal deviceNumber ND IN CONVERT ND PFI 5 ND HIGH TO LOW e Ifyou are using LabVIEW invoke AI_Clock_Config_VI with clock source code set to PFI pin high to low and clock source string set to 5 3 Initiate AI data acquisition which w
82. m noise in LSB not including quantization Noise Noise Gain Dither Off Dither On 0 5 to 10 0 45 0 70 20 0 50 0 75 National Instruments Corporation A 3 DAQCard 6062E User Manual Appendix A Specifications Noise Noise Gain Dither Off Dither On 50 0 65 0 8 100 0 9 1 0 Crosstalk DC to 100 KHZ 75 dB adjacent channels 90 dB all other channels DC to 100 kHz Stability Offset temperature coefficient PLESS AE nnas 5 wV C POSTE AIM seerne 240 u V C Gain temperature coefficient 20 ppm C Analog Output Output Characteristics Number of channels sseceererenee 2 voltage Resolutioniin denea E 12 bits 1 in 4 096 Max update rate FIFO Mode Non FIFO Mode Internally Timed Externally Timed 1 Channel 2 Channels 850 kS s 850 kS s 800 kS s system 400 kS s system dependent dependent Type of DAG foero A Double buffered multiplying FIFO buffer size raserede 2 048 samples Data transfers forargede interrupts programmed I O DAQCard 6062E User Manual A 4 ni com Appendix A Specifications Transfer Characteristics Relative accuracy INL After calibration eee 0 5 LSB typ 1 0 LSB max Before calibration cee cesses 4 LSB max DNL After calibration eee 0 5 LSB typ 1 0 LSB max Before calibration cesses 3 LSB max Monotonicity eee eeeeeeseeeneeeseeeeeeee
83. m power on and reset both the PFI and DIO lines are set to high impedance by the hardware This setting means that the device circuitry is not actively driving the output either high or low However these lines may have pull up or pull down resistors connected to them as shown in Tables 4 2 and 4 3 These resistors weakly pull the output to either a logic high or logic low state For example DIO 0 will be in the high impedance state after power on and Table 4 2 shows that there is a 50 KQ pull up resistor This pull up resistor will set the DIO O pin to a logic high when the output is in a high impedance state C 8 ni com Technical Support and Professional Services Visit the following sections of the NI Web site at ni com for technical support and professional services e Support Online technical support resources include the following Self Help Resources For immediate answers and solutions visit our extensive library of technical support resources available in English Japanese and Spanish at ni com support These resources are available for most products at no cost to registered users and include software drivers and updates a KnowledgeBase product manuals step by step troubleshooting wizards hardware schematics and conformity documentation example code tutorials and application notes instrument drivers discussion forums a measurement glossary and so on Assisted Support Options Contact NI engineers a
84. ms signal due to harmonic distortion to the overall rms signal in dB or percent timing I O an offset delayed pulse the offset is t nanoseconds from the falling edge of the CONVERT signal output delay time pulse period trigger signal source clock period source pulse width transistor transistor logic pulse width G 10 ni com U UI UISOURCE UPDATE V v Vcc VDC VI waveform WFTRIG National Instruments Corporation Glossary update interval update interval counter clock signal update signal volts positive voltage supply volts direct current 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 of a front panel user interface and a block diagram program volts input high volts input low volts in volts output volts output high volts output low reference voltage watts multiple voltage readings taken at a specific sampling rate waveform generation trigger signal G 11 DAQCard 6062E User Manual Index Symbols 5V signal description table 4 3 power connections 4 20 self resetting fuse 4 20 C 1 A ACH lt 0 15 gt signal analog input connections 4 7 description table 4 3 signal summary table 4 5 AIGATE signal 4 29 AIGND signal analog input connections 4 7 description table 4 3 dif
85. mum timing resolution of 50 ns The DAQCard 6062E can interface to an SCXI system so that you can acquire over 3 000 analog signals from thermocouples resistance temperature detectors RTDs strain gauges voltage sources and current sources You can also acquire or generate digital signals for communication and control SCXI is the instrumentation front end for plug in DAQ devices Detailed specifications for the DAQCard 6062E are in Appendix A Specifications National Instruments Corporation 1 1 DAQCard 6062E User Manual Chapter 1 What You Need to Get Started To set up and use the DAQCard 6062E you need the following Q The DAQCard 6062E DAQCard 6062E User Manual Q Q NI DAQ for PC Compatibles Q Optional One of the following software packages and documentation LabVIEW Windows Measurement Studio Windows VI Logger Windows Q A computer Software Programming Choices NI DAQ DAQCard 6062E User Manual When programming the National Instruments DAQ hardware you can use NI application development environment ADE software or other ADEs In either case use NI DAQ NI DAQ which ships with the device has an extensive library of functions that you can call from your ADE These functions allow you to use all of the features of the device NI DAQ carries out many of the complex interactions such as programming interrupts between the computer and the DAQ hardware NI DAQ maintains
86. n Appendix A Specifications The following is a description of installation categories e Installation Category I is for measurements performed on circuits not directly connected to MAINS This category is a signal level such as voltages on a printed wire board PWB on the secondary of an isolation transformer Examples of Installation Category I are measurements on circuits not derived from MAINS and specially protected internal MAINS derived circuits e Installation Category II is for measurements performed on circuits directly connected to the low voltage installation This category refers to local level distribution such as that provided by a standard wall outlet Examples of Installation Category II are measurements on household appliances portable tools and similar equipment e Installation Category III is for measurements performed in the building installation This category is a distribution level referring to hardwired equipment that does not rely on standard building insulation Examples of Installation Category III include measurements on distribution circuits and circuit breakers Other examples of Installation Category III are wiring including cables bus bars junction boxes switches socket outlets in the building fixed installation and equipment for industrial use such as stationary motors with a permanent connection to the building fixed installation e Installation Category IV is for measurements performed a
87. n for help Canadian Department of Communications This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada Compliance to EU Directives Readers in the European Union EU must refer to the Manufacturer s Declaration of Conformity DoC for information pertaining to the CE Mark compliance scheme The Manufacturer includes a DoC for most every hardware product except for those bought for OEMs if also available from an original manufacturer that also markets in the EU or where compliance is not required as for electrically benign apparatus or cables To obtain the DoC for this product click Declaration of Conformity at ni com hardref nsf This Web site lists the DoCs by product family Select the appropriate product family followed by your product and a link to the DoC appears in Adobe Acrobat format Click the Acrobat icon to download or read the DoC Certain exemptions may apply in the USA see FCC Rules 15 103 Exempted devices and 15 105 c Also available in sections of CFR 47 The CE Mark Declaration of Conformity will contain important supplementary information and instructions for the user or installer Contents About This Manual Conventions Used in This Manual cceeceescessceceseceseeeseeceaceeseeeseeeeeeeseeeeaeeeseeesaeeeaes xi
88. nal Cable Connector Descriptions ACH8 ACH1 AIGND ACH10 ACH3 AIGND ACH4 AIGND ACH13 ACH6 AIGND ACH15 DACOOUT DAC10UT EXTREF DIO4 DGND DIO1 DIO6 DGND 5V DGND DGND PFIO TRIG1 PFI1 TRIG2 DGND 5V DGND PFI5 UPDATE PFI6 WFTRIG DGND PFI9 GPCTRO_GATE GPCTRO_OUT FREQ_OUT OSS 34 68 33 67 32 66 31 65 30 64 29 63 28 62 27 61 26 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 M oa DS RK N wo RD N M DD fo sk o N O oa ER P sk wo N a k o PO WIR MD N YC ee ACHO AIGND ACH9 ACH2 AIGND ACH11 AISENSE ACH12 ACH5 AIGND ACH14 ACH7 AIGND AOGND AOGND DGND DIOO DIO5 DGND DIO2 DIO7 DIO3 SCANCLK EXTSTROBE DGND PFI2 CONVERT PFI3 GPCTR1_SOURCE PFI4 GPCTR1_GATE GPCTR1_OUT DGND PFI7 STARTSCAN PF1I8 GPCTRO_SOURCE DGND DGND Figure B 1 68 Pin E Series Connector Pin Assignments B 2 ni com O National Instruments Corporation Appendix B Optional Cable Connector Descriptions Figure B 2 shows the pin assignments for the 50 pin E Series connector This connector is available when you use the SHC68 68 EP cable assembly with the 68M 50F AIGND ACHO ACH1 ACH2 ACH
89. nal as an output on the I O connector software can turn on the output driver for the PFI2 CONVERT pin Be careful not to drive a PFI signal externally when it is configured as an output National Instruments Corporation 4 21 DAQCard 6062E User Manual Chapter 4 Signal Connections Data Acquisition Ti DAQCard 6062E User Manual s an input each PFI can be individually configured for edge or level detection and for polarity selection You can use the polarity selection for any of the timing signals but the edge or level detection depends upon the particular timing signal being controlled The detection requirements for each timing signal are listed within the section that discusses that individual signal In edge detection mode the minimum pulse width required is 10 ns This requirement applies for both rising edge and falling edge polarity settings Edge detection mode does not have a maximum pulse width requirement In level detection mode no minimum or maximum pulse width requirements are imposed by the PFIs themselves but limits may be imposed by the particular timing signal being controlled These requirements are listed later in this chapter ming Connections The data acquisition timing signals are TRIG1 TRIG2 STARTSCAN CONVERT AIGATE SISOURCE SCANCLK and EXTSTROBE Posttriggered data acquisition allows you to view only data that is acquired after a trigger event is received A typical posttriggered DAQ seque
90. nal in a variety of different applications to perform actions such as starting and stopping the counter generating interrupts and saving the counter contents National Instruments Corporation 4 37 DAQCard 6062E User Manual Chapter 4 Signal Connections As an output GPCTR1_GATE monitors the actual gate signal connected to general purpose counter 1 even if another PFI externally generates the gate This signal is set to high impedance at startup Figure 4 33 shows the timing requirements for GPCTR1_GATE lt gt Rising Edge Polarity 1 Falling Edge Polarity tw 10 ns minimum Figure 4 33 GPCTR1_GATE Signal Timing in Edge Detection Mode GPCTR1_OUT Signal This signal is available only as an output on the GPCTR1_OUT pin The GPCTR1_OUT signal monitors the TC device general purpose counter 1 You have two software selectable output options pulse on TC and toggle output polarity on TC The output polarity is software selectable for both options This signal is set to high impedance at startup Figure 4 34 shows the timing requirements for GPCTR1_OUT GPCTR1_SOURCE GPCTR1_OUT Pulse on TC GPCTR1_OUT Toggle Output on TC DAQCard 6062E User Manual Figure 4 34 GPCTR1_OUT Signal Timing GPCTR1_UP_DOWN Signal This signal can be externally input on the DIO7 pin and is not available as an output on the I O connector General purp
91. nce is shown in Figure 4 11 oe ME 8 SD ARE STARTSCAN i CONVERT IL iL IL ii Ii Scan Counter 4 3 2 1 0 Figure 4 11 Typical Posttriggered Acquisition 4 22 ni com Chapter 4 Signal Connections Pretriggered data acquisition allows you to view data that is acquired before the trigger of interest in addition to data acquired after the trigger Figure 4 12 shows a typical pretriggered DAQ sequence ied I i TRIG2 __ a N STARTSCAN l CONVERT Woy Scan Counter 3 9 4 10 9 9 9 14 10 Figure 4 12 Typical Pretriggered Acquisition The description for each signal shown in these figures is included in this chapter TRIG1 Signal Any PFI pin can externally input the TRIG1 signal which is available as an output on the PFIO TRIG1 pin Refer to Figures 4 11 and 4 12 for the relationship of TRIG1 to the DAQ sequence As an input TRIG1 is configured in the edge detection mode You can select any PFI pin as the source for TRIG1 and configure the polarity selection for either rising or falling edge The selected edge of TRIG1 starts the DAQ sequence for both posttriggered and pretriggered acquisitions The DAQCard 6062E supports analog triggering on the PFIO TRIGI pin Refer to Chapter 3 Hardware
92. nd other measurement and automation professionals by visiting ni com ask Our online system helps you define your question and connects you to the experts by phone discussion forum or email e Training Visit ni com custed for self paced tutorials videos and interactive CDs You also can register for instructor led hands on courses at locations around the world e System Integration If you have time constraints limited in house technical resources or other project challenges NI Alliance Program members can help To learn more call your local NI office or visit ni com alliance If you searched ni com and could not find the answers you need contact your local office or NI corporate headquarters Phone numbers for our worldwide offices are listed at the front of this manual You also can visit the Worldwide Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events National Instruments Corporation D 1 DAQCard 6062E User Manual Glossary Prefix Meanings Value p pico 10 2 n nano 10 9 u micro 10 6 m milli 10 3 k kilo 103 M mega 106 G giga 10 Symbols 2 degrees 5V negative of or minus ohms per percent plus or minus positive of or plus square root of 5 VDC source signal National Instruments Corporation
93. ng the signal paths for the three configurations 3 2 ni com Chapter 3 Hardware Overview Input Polarity and Input Range The DAQCard 6062E has two input polarities unipolar and bipolar Unipolar input polarity means that the input voltage range is between 0 and Vef where Vef is a positive reference voltage Bipolar input polarity means that the input voltage range is between V 2 and V 6 2 The DAQCard 6062E has a unipolar input range of 10 V 0 to 10 V anda bipolar input range of 10 V 5 V You can program polarity and range settings on a per channel basis so that you can uniquely configure each input channel The software programmable gain on these cards increases their overall flexibility by matching the input signal ranges to those that the ADC can accommodate The DAQCard 6062E has gains of 0 5 1 2 5 10 20 50 and 100 and is suited for a wide variety of signal levels With the proper gain setting you can use the full resolution of the ADE to measure the input signal Table 3 2 shows the overall input range and precision according to the range configuration and gain used Table 3 2 Actual Range and Measurement Precision Range Configuration Gain Actual Input Range Resolution 0 to 10 V 1 0 0 to 10 V 2 44 mV 2 0 0 to 5 V 1 22 mV 5 0 0 to 2 V 488 28 uV 10 0 0to 1 V 244 14 uV 20 0 0 to 500 mV 122 07 uV 50 0 0 to 200 mV 48 83 uV 100 0 0 to 100 mV 24 41 uV 5 to 5 V 0 5 10to 10 V
94. ns where FCC Class A products can be operated FCC Class B products display either a FCC ID code starting with the letters EXN Trade Name Model Number or the FCC Class B compliance mark that appears as shown here on the right FE Tested to Comply with FCC Standards Consult the FCC Web site at www fcc gov for more information FCC DOC Warnings This equipment generates and uses radio frequency energy and if not installed and used in strict accordance with the instructions in this manual and the CE Mark Declaration of Conformity may cause interference to radio and television reception Classification requirements are the same for the FCC and the Canadian DOC FOR HOME OR OFFICE USE Changes or modifications not expressly approved by National Instruments could void the user s authority to operate the equipment under the FCC Rules Class A Federal Communications Commission This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interfer
95. ntil that data can be read or written For example an analog input FIFO stores the results of A D conversions until the data can be read into system memory Programming the DMA controller and servicing interrupts can take several milliseconds in some cases During this time data accumulates in the FIFO for future retrieval With a larger FIFO longer latencies can be tolerated In the case of analog output a FIFO permits faster update rates because the waveform data can be stored in the FIFO ahead of time This again reduces the effect of latencies associated with getting the data from system memory to the DAQ device signal sources with voltage signals that are not connected to an absolute reference or system ground Also called nonreferenced signal sources Some common example of floating signal sources are batteries transformers or thermocouples frequency output signal feet the factor by which a signal is amplified often expressed in dB gate signal general purpose counter general purpose counter 0 gate signal general purpose counter 0 output signal general purpose counter 0 clock source signal general purpose counter 0 up down signal general purpose counter gate signal general purpose counter output signal general purpose counter clock source signal G 5 DAQCard 6062E User Manual Glossary GPTRI UP DOWN grounded signal sources H h hex hysteresis Hz I O ICTR lou lor INL interchannel
96. o collect receive and generate electrical signals data acquisition card National Instruments data acquisition system timing controller decibel the unit for expressing a logarithmic measure of the ratio of two signal levels dB 20log10 V1 V2 for signals in volts direct current digital ground signal differential digital input output G 3 DAQCard 6062E User Manual Glossary DMA DNL DO DoC DOC DOS E EEPROM EISA EPROM EXTREF EXTSTROBE FCC DAQCard 6062E User Manual 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 differential nonlinearity digital output Declaration of Conformity Department of Communications disk operating system electrically erasable programmable read only memory Extended Industry Standard Architecture erasable programmable read only memory external reference signal external strobe signal farads Federal Communications Commission G 4 ni com FIFO floating signal sources FREQ OUT ft G gain GATE GPCTR GPCTRO GATE GPCTRO OUT GPCTRO SOURCE GPTRO UP DOWN GPCTR1 GATE GPCTR1_OUT GPCTR1_SOURCE National Instruments Corporation Glossary first in first out memory buffer FIFOs are often used on DAQ devices to temporarily store incoming or outgoing data u
97. oating signal sources are outputs of transformers thermocouples battery powered devices optical isolator output and isolation amplifiers An instrument or device that has an isolated output is a floating signal source You must connect the ground reference of a floating signal to the DAQCard 6062E AI ground to establish a local or onboard reference for the signal Otherwise the measured input signal varies as the source floats outside the common mode input range Ground Referenced Signal Sources A ground referenced signal source is one that is connected in some way to the building system ground and is therefore already connected to a common ground point with respect to the DAQCard 6062E assuming that the computer is plugged into the same power system Nonisolated output of instruments and devices that plug into the building power system falls into this category The difference in ground potential between two instruments connected to the same building power system is typically between 1 and 100 mV but it can be much higher if power distribution circuits are improperly connected If a grounded signal source is incorrectly measured this difference may appear as a measurement error The connection instructions for grounded signal sources are designed to eliminate this ground potential difference from the measured signal Input Configurations You can configure the DAQCard 6062E for NRSE RSE or DIFF mode The following sections discuss s
98. ommon mode input ranges distorts the input signals Exceeding the maximum input voltage rating can damage the DAQCard 6062E and the computer NI is not liable for any damage resulting from such signal connections The maximum input voltage ratings are listed in the Protection column of Table 4 3 In NRSE mode the AISENSE signal internally connects to the negative input of the DAQCard PGIA when the corresponding channels are selected In DIFF and RSE modes this signal is unconnected AIGND is an AI common signal that is routed directly to the ground connection point on the DAQCard 6062E You can use this signal for a general analog ground connect point to the device if necessary Connection of AI signals to the DAQCard 6062E depends on the configuration of the AI channels you are using and the signal source type Note that exceeding input ranges on any channel can affect the measurements on a different channel even if the other channel is well within the input range National Instruments Corporation 4 7 DAQCard 6062E User Manual Chapter 4 Signal Connections DAQCard 6062E User Manual With the different configurations you can use the PGIA in different ways Figure 4 2 shows a diagram of the DAQCard PGIA Instrumentation Amplifier Vin O v Measured m Vi Voltage Vm Vins Vin Gain Figure 4 2 DAQCard 6062E PGIA The PGIA applies gain and common mode voltage rejection and presents
99. or information National Instruments Corporation 5 3 DAQCard 6062E User Manual Specifications Analog Input This appendix lists the specifications of the DAQCard 6062E These specifications are typical at 25 C unless otherwise noted Input Characteristics Number of channels 16 single ended 16 pseudo differential or 8 differential software selectable on a per channel basis Type Of ADC sin saae na Successive approximation Resolution ccceeeeeeeeceececcccceeessseeseeeees 12 bits 1 in 4 096 Max sampling rate eee 500 kS s Input signal ranges cons Rhen Sur Software Selectable Bipolar Unipolar 0 5 10 V 1 5 V Oto 10V 2 2 5 V Oto5V 5 1 Oto2V 10 500 mV Otol V 20 250 mV 0 to 500 mV 50 100 mV 0 to 200 mV 100 50 mV 0 to 100 mV National Instruments Corporation A 1 DAQCard 6062E User Manual Appendix A Specifications DAQCard 6062E User Manual Input Coupling eee eeeeeeeeeeeeeneees Max working voltage signal common mode Overvoltage protection 0 0 0 Inputs protected ee FIFO buffer size eee Data transfers cccceeceeesesereeeeees Transfer Characteristics Relative accuracy eeseeseeeeseeeneees No missing COdeS ee eeeeeeeeeeeee Offset error Pregain error after calibration Pregain error before calibration Postgain error after calibration
100. ories and cables specified in the installation instructions You must have all covers and filler panels installed during operation of the product Do not operate the product in an explosive atmosphere or where there may be flammable gases or fumes Operate the product only at or below the pollution degree stated in Appendix A Specifications Pollution is foreign matter in a solid liquid or gaseous state that can reduce dielectric strength or surface resistivity The following is a description of pollution degrees e Pollution degree 1 means no pollution or only dry nonconductive pollution occurs The pollution has no influence e Pollution degree 2 means that only nonconductive pollution occurs in most cases Occasionally however a temporary conductivity caused by condensation must be expected e Pollution degree 3 means that conductive pollution occurs or dry nonconductive pollution occurs that becomes conductive due to condensation Clean the product with a soft nonmetallic brush Make sure that the product is completely dry and free from contaminants before returning it to service You must insulate signal connections for the maximum voltage for which the product is rated Do not exceed the maximum ratings for the product Remove power from signal lines before connecting them to or disconnecting them from the product 1 6 ni com Chapter 1 Introduction Operate this product only at or below the installation category stated i
101. ose counter 1 counts down when this pin is at a logic low and counts up at a logic high You can disable this input so that software can control the up down functionality and leave 4 38 ni com Chapter 4 Signal Connections the DIO7 pin free for general use Figure 4 35 shows the timing requirements for the GATE and SOURCE input signals and the timing specifications for the OUT output signals of the DAQCard 6062E ViH SOURCE IL v GATE Vit ret tsc gt q tsp gt q tsp gt gt tgsu lt gt toh lt a tow a et tout gt Source Clock Period tsc 50 ns minimum Source Pulse Width tsp 23 ns minimum Gate Setup Time tysu 10 ns minimum Gate Hold Time tgh 0 ns minimum Gate Pulse Width tyw 10 ns minimum Output Delay Time tout 80 ns maximum Figure 4 35 GPCTR Timing Summary The GATE and OUT signal transitions shown in Figure 4 35 are referenced to the rising edge of the SOURCE signal This timing diagram assumes that the counters are programmed to count rising edges If the counter is programmed to count falling edges the source signal is inverted and referenced to the falling edge of the source signal in Figure 4 35 The GATE input timing parameters are referenced to the signal at the SOURCE input or to one of the internally generated signals on the DAQCard 6062E Figure 4 35 shows the GATE signal referenced to the rising edge of a source signal The gate must be valid either high or low
102. output of the PGIA as shown in Figure 3 3 The trigger level range for the direct analog channel is 10 V in 78 mV steps The range for the post PGIA trigger selection is simply the full scale range of the selected channel and the resolution is that range divided by 256 Analog Input Channels PFIO TRIG1 PGIA ADC Analog Mux Trigger DAQ STC Circuit Figure 3 3 Analog Trigger Block Diagram Five analog triggering modes are available as shown in Figures 3 4 through 3 8 You can set lowValue and highValue independently in software National Instruments Corporation 3 7 DAQCard 6062E User Manual Chapter 3 Hardware Overview In below low level analog triggering mode as shown in Figure 3 4 the trigger is generated when the signal value is less than lowValue HighValue is unused lowValue Trigger Me l Figure 3 4 Below Low Level Analog Triggering Mode In above high level analog triggering mode as shown in Figure 3 5 the trigger is generated when the signal value is greater than high Value LowValue is unused highValue Trigger I ae ee Figure 3 5 Above High Level Analog Triggering Mode DAQCard 6062E User Manual 3 8 ni com Chapter 3 Hardware Overview In inside region analog triggering mode as shown in Figure 3 6 the trigger is generated when the signal value is between the lowValue and t
103. quirements for getting started 1 2 software programming choices National Instruments application software 1 3 NI DAQ driver software 1 2 unpacking 1 5 DAQ STC system timing controller 1 1 C 1 data acquisition timing connections AIGATE signal 4 29 CONVERT signal 4 28 EXTSTROBE signal 4 31 SCANCLK signal 4 30 SISOURCE signal 4 29 STARTSCAN signal 4 26 TRIGI signal 4 23 TRIG signal 4 24 typical posttriggered acquisition figure 4 22 typical pretriggered acquisition figure 4 23 deglitching questions about C 4 DGND signal description table 4 3 ni com digital I O connections 4 19 power connections 4 20 signal summary table 4 5 diagnostic resources D 1 DIFF differential input mode description 4 11 ground referenced signal sources 4 12 nonreferenced or floating signal sources 4 13 questions about C 2 recommended configuration figure 4 10 single ended connections 4 15 when to use 4 11 digital I O operation 3 10 questions about C 6 signal connections 4 19 specifications A 6 digital trigger specifications A 8 DIO lt 0 7 gt signal description table 4 3 digital I O connections 4 19 signal summary table 4 6 dither enabling 3 4 signal acquisition effects figure 3 5 documentation online library D 1 drivers instrument D 1 software D 1 E EEPROM storage of calibration constants 5 1 environment specifications A 9 environmental noise avoiding 4 4
104. raries For Visual Basic developers Measurement Studio features a set of ActiveX controls for using National National Instruments Corporation 1 3 DAQCard 6062E User Manual Chapter 1 Introduction Instruments DAQ hardware These ActiveX controls provide a high level programming interface for building virtual instruments For Visual C developers Measurement Studio offers a set of Visual C classes and tools to integrate those classes into Visual C applications The libraries ActiveX controls and classes are available with Measurement Studio and NI DAQ VI Logger is an easy to use yet flexible tool specifically designed for data logging applications Using dialog windows you can configure data logging tasks to easily acquire log view and share your data VI Logger does not require any programming it is a stand alone configuration based software Using LabVIEW Measurement Studio or VI Logger greatly reduces the development time for your data acquisition and control application Optional Equipment National Instruments offers a variety of products to use with the DAQCard 6062E including the following cables connector blocks and other accessories e Cables and cable assemblies shielded and ribbon e Connector blocks shielded and unshielded with 50 and 68 pin screw terminals e SCXI modules and accessories for isolating amplifying exciting and multiplexing signals for relays and analog output With SCXI you c
105. reference signal can be either a DC signal or an AC signal The device multiplies this reference signal by the DAC code divided by the full scale DAC code to generate the output voltage 4 18 ni com Chapter 4 Signal Connections Connecting Digital 1 0 Signals The DIO signals are DIO lt 0 7 gt and DGND The DIO lt 0 7 gt signals make up the DIO port and DGND is the ground reference signal for this port You can individually program all lines as inputs or outputs UN Caution Exceeding the maximum input voltage ratings which are listed in Table 4 3 can damage the DAQCard 6062E and the computer NI is not liable for any damage resulting from such signal connections Figure 4 9 shows signal connections for three typical DIO applications 5V LED At WW DIO lt 4 7 gt Pa gt 0 TTL Signal o DIO lt 0 3 gt 5V VW gt Switch DGND I O Connector E Series Card Figure 4 9 Digital 1 0 Connections Figure 4 9 shows DIO lt 0 3 gt configured for digital input and DIO lt 4 7 gt configured for digital output Digital input applications include receiving TTL signals and sensing external device states such as the state of the National Instruments Corporation 4 19 DAQCard 6062E User Manual Chapter 4 Signal Connections switch shown in the figure Digital output applications include sending TTL signals and driving exte
106. rnal devices such as the LED shown in the figure Power Connections Two pins on the I O connector supply 5 V from the computer power supply through a self resetting fuse The fuse resets automatically within a few seconds after the overcurrent condition is removed These pins are referenced to DGND and you can use them to power external digital circuitry Refer to the power requirement of the I O connection supply in Appendix A Specifications for more information on powering the device UN Caution Do not under any circumstances connect these 5 V power pins directly to analog or digital ground or to any other voltage source on the DAQCard 6062E or any other device Doing so can damage the DAQCard 6062E and the computer NI is not liable for damage resulting from such a connection Connecting Timing Signals J Caution Exceeding the maximum input voltage ratings which are listed in Table 4 3 can damage the DAQCard 6062E and the computer NI is not liable for any damage resulting from such signal connections DAQCard 6062E User Manual All external control of the DAQCard 6062E timing is routed through the 10 PFIs labeled PFIO through PFI9 These signals are explained in detail in the Programmable Function Input Connections section These PFIs are bidirectional as outputs they are not programmable and reflect the state of many DAQ waveform generation and general purpose timing signals There are five other dedicated outputs
107. rnal signals Sample Interval Counter TC and GPCTRO_OUT National Instruments Corporation 3 11 DAQCard 6062E User Manual Chapter 3 Hardware Overview Programmable Function Inputs Ten PFIs connect to the signal routing multiplexer for each timing signal and software can select a PFI as the external source for a given timing signal Any timing signal can use any PFI as an input and multiple timing signals can simultaneously use the same PFI This flexible routing scheme reduces the need to change physical connections to the I O connector for different applications You also can individually enable each PFI pin to output a specific internal timing signal For example if you need the UPDATE signal as an output on the I O connector software can turn on the output driver for the PFI5 UPDATE pin DAQCard 6062E Clocks DAQCard 6062E User Manual Many functions performed by the DAQCard 6062E require a frequency timebase to generate the necessary timing signals for controlling A D conversions DAC updates or general purpose signals at the I O connector The DAQCard 60602E can directly use the internal 20 MHz timebase as the primary frequency source 3 12 ni com Signal Connections This chapter describes how to make input and output signal connections to the DAQCard 6062E through the DAQCard I O connector Table 4 1 shows the cables that can be used with the I O connectors to connect to different accessories Table 4
108. rnal timing signals together If you are using NI DAQ with LabVIEW and you want to connect external signal sources to the PFI lines you can use AI Clock Config AI Trigger Config AO Clock Config AO Trigger and Gate Config and Counter Set Attribute advanced level VIs to indicate which function the connected signal will serve Use the Route Signal VI to enable the PFI lines to output internal signals UN Caution If you enable a PFI line for output do not connect any external signal source to it if you do you can damage the DAQCard the computer and the connected equipment Table C 1 corresponds the hardware signal names to the software signal names in LabVIEW and NI DAQ Table C 1 Signal Name Equivalencies Hardware Signal Name LabVIEW Route Signal NI DAQ Select_Signal TRIGI Al Start Trigger ND_IN_START_TRIGGER TRIG2 AI Stop Trigger ND_IN_STOP_TRIGGER STARTSCAN AI Scan Start ND_IN_SCAN_START SISOURCE ND IN SCAN CLOCK TIMEBASE CONVERT AI Convert ND_IN_CONVERT AIGATE ND IN EXTERNAL GATE WFTRIG AO Start Trigger ND OUT START TRIGGER UPDATE AO Update ND OUT UPDATE UISOURCE ND OUT UPDATE CLOCK TIMEBASE AOGATE ND OUT EXTERNAL GATE National Instruments Corporation C 7 DAQCard 6062E User Manual Appendix C Common Questions DAQCard 6062E User Manual What are the power on states of the PFI and DIO lines on the I O connector At syste
109. rogrammable gain instrumentation amplifier analog input connections 4 7 common mode signal rejection 4 17 differential connections floating signal sources 4 13 ground referenced signal sources 4 12 single ended connections floating signal sources figure 4 16 grounded signal sources figure 4 17 phone technical support D 1 physical specifications A 9 pin assignments 50 pin E series connector B 3 68 pin E series connector B 2 DAQCard 6062E figure 4 2 polarity selection 3 3 posttriggered data acquisition 4 22 power connections 5 V power pins 4 20 power on states of PFI and DIO lines C 8 self resetting fuse 4 20 power requirement specifications A 9 pretriggered data acquisition 4 23 professional services D 1 programmable function inputs PFIs See PFIs programmable function inputs programmable gain instrumentation amplifier See PGIA programmable gain instrumentation amplifier programming examples D 1 Q questions and answers analog input and output C 2 general information C 1 installation and configuration C 2 timing and digital I O C 6 ni com Index R GPCTRO UP DOWN signal 4 36 referenced single ended input RSE See RSE GPCTRI GATE signal og referenced single ended input GPCTRI_OUT signal 4 38 reglitch circuitry C 4 GPCTR1 SOURCE signal 4 37 requirements for getting started 1 2 GPCTRI UP DOWN signal 4 38 RSE referenced single ended input VO connector i description
110. s RSE Confisura tion tosis saae seg Wore OE chines 4 16 Single Ended Connections for Grounded Signal Sources NRSE Configuration eeen etenean headed eadein 4 16 Common Mode Signal Rejection Considerations sssessesesserssesesererrsrsreeesee 4 17 Analog Output Signal Connections 0 eee eeeeseceeceseeseeeseeeeeseeaeeeeeaeceeeesesseeeaeeeaes 4 17 Connecting Digital I O Signals ae a EE a aE 4 19 Power COmmect Ons so rdr Nee syr E ence suevecs sae cued gis a TAE EER E R R 4 20 Connecting Timing Signals ransis renerne ere era 4 20 Programmable Function Input Connections 00 eee eseeeeceeeneeeseeeeeees 4 21 Data Acquisition Timing Connections 00 0 0 eee eeeeseeseeeseeseceseeeeeeeeseenees 4 22 ERIGL Si oma csuc oseere E tuvcsesPesteyeeMeastes 4 23 TRIG2 SIDA hi Beis Se eid Se ee E 4 24 STARTSCAN Sonal sernai raie ao i a beets 4 26 CONVER TESS Tab taos reaa aea EAE A R EAEAN 4 28 AIGATE Sima E e A EOSS AEI E REET ES 4 29 SISOURGE Signal eom a a aT AE AR 4 29 SCANCEK Sisha l pionnen e EE RAE E e EE 4 30 EXTSTROBE Sipmall in re R a 4 31 Waveform Generation Timing Connections sseessseesseesssrrsreereresreersrrersses 4 31 WETRIG Signal oe 24sec hash be dae E ee 4 3 UPDATE SIS Hal ororo aiee bins ducuvee EEE EREE 4 32 UISOURCE Signal si s 2 ante dain dee ee ee 4 33 General Purpose Timing Signal Connections 000 0 eeeeeeseeeeeseeeeeeeeseeenees 4 34 GPCTRO_SOURCE Signal 20 0 eee cee eeeeeeceeceeeeseeeseeeeeseeseees 4 34
111. s Stability Offset temperature coefficient 50 uV C Gain temperature coefficient Internal reference eee 25 ppm C External reference ee 25 ppm C Number of channels eee 8 input output Compatibility isisisi sianie iiron TTL CMOS Digital logic levels Level Min Max Input low voltage OV 0 8 V Input high voltage 2V 5V Input low current Vin 0 V 320 UA Input high current V 5 V 10 uA Output low voltage Io 24 mA 0 4 V Output high voltage lop 13 mA 4 35 V A 6 ni com Power on State ccccccccceseseseseseseeeeees Data transfers cccccecceceseseseneeeeeeeeees Timing 1 0 Number of channels 1 scene Resolution Counter timers ccccccsessseseseseeees Frequency scalers cceseeseeenees Compatibility 0 0 ee eeeeeeeeeeees Base clocks available Counter timers cccccccsessescsseseeees Frequency scalers cceseeeeeeees Base clock accuracy seses Max source frequency ceeeeeeeeeeeees Min source pulse duration eeeee Min gate pulse duration sc D ta transfers 4265 series gns ders Triggers Analog Trigger Soure Es iaido eens TOV P REN ERE Sheela aie ee SOREN eee ies National Instruments Corporation A 7 Appendix A Specifications High impedance Programmed I O 50 kwords s system dependent 1 to 10 kwords s typ 2 up down counter timers 1 frequency sca
112. s are available for generating a sequence of eight pulses in the hardware strobe mode S Note You cannot control EXTROBE using NI DAQ Figure 4 23 shows the timing for the hardware strobe mode EXTSTROBE signal a VoL rra tw tw t 600 ns or 5 us Figure 4 23 EXTSTROBE Signal Timing Waveform Generation Timing Connections The analog group defined for the DAQCard 6062E is controlled by WFTRIG UPDATE and UISOURCE WFTRIG Signal Any PFI pin can externally input the WFTRIG signal which is available as an output on the PFI6 WFTRIG pin As an input WFTRIG is configured in the edge detection mode You can select any PFI pin as the source for WFTRIG and configure the polarity selection for either rising or falling edge The selected edge of WFTRIG starts the waveform generation for the DACs The update interval UI counter is started if you select internally generated UPDATE As an output WFTRIG reflects the trigger that initiates waveform generation even if another PFI externally triggers the waveform generation The output is an active high pulse with a pulse width of 50 to 100 ns This output is set to high impedance at startup National Instruments Corporation 4 31 DAQCard 6062E User Manual Chapter 4 Signal Connections DAQCard 6062E User Manual Figures 4 24 and 4 25 show the input and output timing requirements for the WFTRIG signal Rising Edge Polari
113. s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks CVI DAQCard DAQ STC LabVIEW Measurement Studio National Instruments NI ni com NI DAQ NI PGIA RTSI and SCXI are trademarks of National Instruments Corporation Product and company names mentioned herein are trademarks or trade names of their respective companies Patents For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS 1 NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOF
114. stor puts the signal path nearly in balance so that about the same amount of noise couples onto both connections yielding better rejection of electrostatically coupled noise Also this configuration does not load down the source other than the very high input impedance of the PGIA You can fully balance the signal path by connecting another resistor of the same value between the positive input and AIGND as shown in Figure 4 5 This fully balanced configuration offers slightly better noise rejection but has the disadvantage of loading the source down with the series combination sum of the two resistors If for example the source impedance is 2 kQ and each of the two resistors is 100 kQ the resistors load down the source with 200 KQ and produce a 1 gain error Both inputs of the PGIA require a DC path to ground in order for the PGIA to work If the source is AC coupled capacitively coupled the PGIA needs a resistor between the positive input and AIGND If the source has low impedance choose a resistor that is large enough not to significantly load the source but small enough not to produce significant input offset voltage as a result of input bias current typically 100 KQ to 1 MQ In this case you can connect the negative input directly to AIGND If the source has high output impedance balance the signal path as previously described using the same value resistor on both the positive and negative inputs be aware that there is som
115. t and ACH lt i 8 gt The symbol leads you through nested menu items and dialog box options to a final action The sequence File Page Setup Options directs you to pull down the File menu select the Page Setup item and select Options from the last dialog box This icon denotes a note which alerts you to important information This icon denotes a caution which advises you of precautions to take to avoid injury data loss or a system crash When this symbol is marked on the product refer to the Safety Information section of Chapter 1 Introduction for precautions to take Bold text denotes items that you must select or click in the software such as menu items and dialog box options Bold text also denotes parameter names Italic text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text that is a placeholder for a word or value that you must supply Text in this font denotes text or characters that you should enter from the keyboard sections of code programming examples and syntax examples 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 and code excerpts NI DAQ refers to NI DAQ software unless otherwise noted National Instruments Corporation Xi DAQCard 6062E User Manual About This Manual Related Documentation D
116. t the source of the low voltage lt 1 000 V installation Examples of Installation Category IV are electric meters and measurements on primary overcurrent protection devices and ripple control units 1 MAINS is defined as the electricity supply system to which the equipment concerned is designed to be connected either for powering the equipment or for measurement purposes National Instruments Corporation 1 7 DAQCard 6062E User Manual Chapter 1 Introduction Below is a diagram of a sample installation Category IV Electric Meter Category Ill Circuit Breaker Category Il Category I Plug in Equipment Source of Building Fixed Local Level Secondary Low Voltage Installation Distribution Such Windings of lt 1000 V Distribution as Wall Sockets Isolation Installation Panel Transformers DAQCard 6062E User Manual 1 8 ni com Installing and Configuring the DAQCard 6062E This chapter explains how to install and configure a DAQCard 6062E Installing the Software Complete the following steps to install the software before installing the DAQCard 6062E 1 Install the ADE such as LabVIEW Measurement Studio or VI Logger according to the instructions on the CD and the release notes 2 Install NI DAQ according to the instructions on the CD and the DAQ Quick Start Guide included with the device 3 Note Itis important to install NI DAQ before installing the DAQCard 6062E to ensur
117. table 3 2 exceeding maximum ratings recommended configuration cannon ae figure 4 10 I O signal summary table 4 5 overview 4 1 pin assignments figure 50 pin E series connector B 3 68 pin E series connector B 2 single ended connections for floating signal sources 4 16 S signal descriptions table 4 3 SCANCLK signal input configurations description table 4 3 common mode signal rejection 4 17 signal summary table 4 6 differential connections timing connections 4 30 DIFF input configuration 4 11 signal connections floating signal sources 4 13 analog input 4 7 ground referenced signal analog output 4 17 sources 4 12 data acquisition timing connections nonreferenced signal AIGATE signal 4 29 sources 4 13 CONVERT signal 4 28 recommended configuration EXTSTROBE signal 4 31 figure 4 10 SCANCLK signal 4 30 single ended connections SISOURCE signal 4 29 floating signal sources RSE STARTSCAN signal 4 26 configuration 4 16 TRIGI signal 4 23 grounded signal sources NRSE TRIG signal 4 24 configuration 4 16 j oe power connections 4 20 typical posttriggered acquisition ane figure 4 22 programmable function input typical pretriggered acquisition 3 Congero a figure 4 23 timing connections digital O 4 19 data acquisition timing field wiring considerations 4 40 orgie eee general purpose timing connections Oe ea ras FREQ _ OUT signal 4 40 Dee Pah GPCTRO_GATE signal 4 35 waveform generat
118. ts are all high impedance The hardware up down control for general purpose counters 0 and 1 are connected onboard to DIO6 and DIO7 respectively Thus you can use DIO6 and DIO7 to control the general purpose counters The up down control signals GPCTRO_UP_DOWN and GPCTR1_UP_DOWN are input only and do not affect the operation of the DIO lines DAQCard 6062E User Manual 3 10 ni com Chapter 3 Hardware Overview Timing Signal Routing The DAQ STC provides a flexible interface for connecting timing signals to other devices or external circuitry The DAQCard 6062E uses the programmable function input PFI pins on the I O connector to connect to external circuitry These connections are designed to enable the DAQCard 6062E to both control and be controlled by other devices and circuits The DAQ STC has 13 internal timing signals that can be controlled by an external source These timing signals can also be controlled by signals generated internally to the DAQ STC and these selections are fully software configurable For example the signal routing multiplexer for controlling the CONVERT signal is shown in Figure 3 9 lt _ gt 2 gt CONVERT Sample Interval Counter TC gt GPCTRO_OUT Figure 3 9 CONVERT Signal Routing PFI lt 0 9 gt lt Figure 3 9 shows that CONVERT can be generated from a number of sources including the external signals PFI lt 0 9 gt and the inte
119. tween the DAQCard 6062E and other devices the counter numbers are different timebase selections are different and the DAQ STC counters are 24 bit counters unlike the 16 bit counters on devices without the DAQ STC If you are using the NI DAQ language interface such as LabWindows CVI the counter time applications that you wrote previously will not work with the DAQ STC You must use the GPCTR functions ICTR and CTR functions will not work with the DAQ STC The GPCTR functions have the same capabilities as the ICTR and CTR functions plus more but you must rewrite the application with the GPCTR function calls I m using one of the general purpose counter timers on my DAQCard 6062E but I do not see the counter timer output on the I O connector What am I doing wrong If you are using the NI DAQ language interface or LabWindows CVI you must configure the output line to output the signal to the I O connector Use the Select Signal call in NI DAQ to configure the output line By default all timing I O lines except EXTSTROBE are high impedance C 6 ni com Appendix C Common Questions What are the PFIs and how do I configure these lines PFIs are Programmable Function Inputs These lines serve as connections to virtually all internal timing signals If you use NI DAQ or Measurement Studio use the Select Signal function to route internal signals to the I O connector route external signals to internal timing sources or tie inte
120. ty i Falling Edge Polarity ty 10 ns minimum Figure 4 24 WFTRIG Input Signal Timing i tw 50 to 100 ns Figure 4 25 WFTRIG Output Signal Timing UPDATE Signal Any PFI pin can externally input the UPDATE signal which is available as an output on the PFIS UPDATE pin As an input UPDATE is configured in the edge detection mode You can select any PFI pin as the source for UPDATE and configure the polarity selection for either rising or falling edge The selected edge of UPDATE updates the outputs of the DACs In order to use UPDATE you must set the DACs to posted update mode As an output UPDATE reflects the actual update pulse that is connected to the DACs even if another PFI externally generates the updates The output is an active low pulse with a pulse width of 300 to 350 ns This output is set to high impedance at startup 4 32 ni com Chapter 4 Signal Connections Figures 4 26 and 4 27 show the input and output timing requirements for the UPDATE signal Rising Edge Polarity Falling Edge Polarity ty 10 ns minimum Figure 4 26 UPDATE Input Signal Timing tw 300t0350ns Figure 4 27 UPDATE Output Signal Timing The DACs are updated within 1 3 us of the leading edge Separate the UPDATE pulses with enough time that new data can be written to the DAC latches The UI counter normally generates the UP
121. ut description table 3 2 differential connections 4 13 recommended configuration figure 4 10 single ended connections NRSE configuration 4 16 0 online technical support D 1 optional equipment 1 4 P PFIO TRIG1 signal See also TRIGI signal description table 4 4 signal summary table 4 6 DAQCard 6062E User Manual Index PFI1 TRIG2 signal See also TRIG2 signal description table 4 4 signal summary table 4 6 PFI2 CONVERT signal See also CONVERT signal description table 4 4 signal summary table 4 6 PFI3 GPCTR1_SOURCE signal See also GPCTR1_SOURCE signal description table 4 4 signal summary table 4 6 PFI4 GPCTR1_GATE signal See also GPCTR1_GATE signal description table 4 4 signal summary table 4 6 PFI5 UPDATE signal See also UPDATE signal description table 4 4 signal summary table 4 6 PFI6 WFTRIG signal See also WFTRIG signal description table 4 4 signal summary table 4 6 PFI7 STARTSCAN signal See also STARTSCAN signal description table 4 5 signal summary table 4 6 PFI8 GPCTRO_SOURCE signal See also GPCTRO_SOURCE signal description table 4 5 signal summary table 4 6 PFI9 GPCTRO_GATE signal See also GPCTRO_GATE signal description table 4 5 signal summary table 4 6 PFIs programmable function inputs questions about C 7 signal routing 3 11 timing considerations 3 12 DAQCard 6062E User Manual PGIA p
122. y PFI pin can externally input the GPCTRO_SOURCE signal which is available as an output on the PFI8 GPCTRO_SOURCE pin As an input GPCTRO_SOURCE is configured in the edge detection mode You can select any PFI pin as the source for GPCTRO_SOURCE and configure the polarity selection for either rising or falling edge As an output GPCTRO_SOURCE reflects the actual clock connected to general purpose counter 0 even if another PFI externally inputs the source clock This signal is set to high impedance at startup DAQCard 6062E User Manual 4 34 ni com Chapter 4 Signal Connections Figure 4 29 shows the timing requirements for GPCTRO SOURCE t 50 ns minimum tw 23 ns minimum Figure 4 29 GPCTRO SOURCE Signal Timing The maximum allowed frequency is 20 MHz with a minimum pulse width of 23 ns high or low There is no minimum frequency limitation The 20 MHz or 100 kHz timebase normally generates GPCTRO SOURCE unless you select some external source GPCTRO_GATE Signal Any PFI pin can externally input the GPCTRO_GATE signal which is available as an output on the PFI9 GPCTRO_GATE pin As an input GPCTRO_GATE is configured in the edge detection mode You can select any PFI pin as the source for GPCTRO_GATE and configure the polarity selection for either rising or falling edge You can use the gate signal in a variety of applications to perform actions such as starting and stopping the counter generating

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