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DT300 Series User`s Manual

1. Board waits for Post trigger event occurs Retrigger event occurs retrigger event post trigger data acquired post trigger data acquired for two scans of the CGL for two scans of the CGL Figure 26 Continuous Post Trigger Mode with Triggered Scan Pre Trigger Acquisition Use pre trigger acquisition mode continuous pre trigger mode when you want to acquire data before a specific external event occurs Using software specify e The dataflow as ContinuousPreTrigger e The pre trigger source as the software trigger e The post trigger source as the external positive digital TTL trigger e The retrigger mode as the software retrigger if you are using triggered scan mode Refer to page 77 for more information on the supported conversion modes refer to page 80 for information on the supported trigger sources Note When using pre trigger acquisition you cannot use externally retriggered scan mode refer to page 78 for more information on triggered scan mode Pre trigger acquisition starts when you start the operation and stops when the board detects the selected post trigger source indicating that the first post trigger sample was acquired this sample is ignored Principles of Operation If you are using software retriggered scan mode and the post trigger event has not occurred the board continues to acquire pre trigger data using the software retrigger clock to clock th
2. Sample Clock Board waits for Pre trigger event occurs h Retrigger event occurs Post trigger event pre trigger data is acquired retrigger event pre trigger data is occurs acquisitior for two scans of the CGL acquired until post trigger stops event occurs Figure 28 Continuous Pre Trigger Mode with Triggered Scan 83 Chapter 6 84 About Trigger Acquisition Use about trigger acquisition mode when you want to acquire data both before and after a specific external event occurs This operation is equivalent to doing both a pre trigger and a post trigger acquisition Using software specify e The dataflow as ContinuousPrePostTrigger e The pre trigger source as the software trigger e The post trigger source as the external positive digital TTL trigger e If you are using triggered scan mode the retrigger mode as the software retrigger Refer to page 77 for more information on the supported conversion modes refer to page 80 for information on the supported trigger sources Note When using about trigger acquisition you cannot use externally retriggered scan mode refer to page 78 for more information on triggered scan mode The about trigger acquisition starts when you start the operation When it detects the selected post trigger event the board stops acquiring pre trigger data and starts acquiring post trigger data If you are using software retrigge
3. Vee STP300 Panel 8 4 to 20 mA Analog Input 0 TB1 E R9 7 TB18 TB2 D D Analog Input 0 O D Return D D RI D O O O D O Analog Ground Use current shunt resistor R9 to convert current to voltage 250 Qfor 4 to 20 mA 1 to 5 V The common side of the external loop supply must either connect to analog ground or if needed to a bias return resistor R1 in this case Figure 12 Connecting Current Inputs Shown for Channel 0 50 Wiring Signals Connecting Analog Output Signals Figure 13 shows how to connect an analog output voltage signal channel 0 in this case to the STP300 screw terminal panel using an external 10 V reference O Analog Output 0 O Analog Output 0 Return WTB Load _ D TB20 Analog Output 0 Reference D TB21 D D D vet STP300 Panel Figure 13 Connecting Analog Output Voltages Using an External 10 V Reference Shown for Channel 0 If you do not connect the Analog Output Reference to TB21 the board provides an internal 10 V reference as shown in Figure 14 STP300 Panel DT300 Series Board O Analog Output 0 O Analog Output 0 Return D TB19 Load D TB20 TB21 DACO D 10 kQ O O 10 V Reference Figure 14 Connecting Analog Output Voltages Using the Board s Internal 10 V Reference Shown for Channel 0 51 Chapter 4 Connecting Digital I O Signals Figure 15
4. You can verify the operation of a DT300 Series board using the Quick DataAcq application Quick DataAcq allows you to do the following Acquire data from a single analog input channel or digital input port Acquire data continuously from one or more analog input channels using an oscilloscope strip chart or Fast Fourier Transform FFT view Measure the frequency of events Output data from a single analog output channel or digital output port Output pulses either continuously or as a one shot Save the input data to disk This chapter describes how to install and run the Quick DataAcq application Verifying the Operation of a DT300 Series Board Running the Quick DataAcq Application The Quick DataAcq application is installed automatically when you install the driver software To run the Quick DataAcq application do the following 1 If you have not already done so power up your computer and any attached peripherals 2 Click Start from the Task Bar 3 Browse to Programs Data Translation Incl DT Open Layers for Win32 QuickDataAcq The main menu appears Note The Quick DataAcq application allows you to verify basic operations on the board however it may not support all of the board s features For information on each of the features provided use the online help for the Quick DataAcq application by pressing F1 from any view or selecting the Help menu If the system has trouble finding the help file navigate
5. TB25 Q TB26 D TB28 Gate 0 TB29 D D D User Clock Input 0 S gnal Source Gating Switch i cdi a xo Digital Ground Figure 17 Connecting Event Counting Signals Shown for Clock Input 0 and External Gate 0 Figure 18 shows another example of connecting event counting signals to the STP300 screw terminal panel using user counter 0 In this example a software gate is used to start the event counting operation 53 Chapter 4 Digital Ground STP300 Panel S gnal Source TB25 9 J User Clock Input 0 Y TB26 09900900 Figure 18 Connecting Event Counting Signals without an External Gate Input Shown for Clock Input 0 Figure 19 shows an example of how to cascade two counters externally to perform an event counting operation using user counters 0 and 1 Note that you can also internally cascade counters using software if you internally cascade the counters you do not need to make the external cascading connections Note also that this example shows the use of an external gate however this is connection is not required STP300 Panel External Gating Switch o CA A Digital Ground An internal 33 Q series resist
6. Run the Quick DataAcq application described in page 59 to verify that the board is operating properly Once you have determined that the board is operating properly wire the signals according to your application s requirements STP300 Screw Terminal Assignments With the connector held up the screw terminals on the right side of the STP300 match pins 23 to 34 and pins 57 to 68 of the standard 68 pin connector on the DT300 Series boards these screw terminals represent the analog I O signal connections The remaining screw terminals are located on the left side of the STP300 screw terminal panel and are provided for the digital I O counter timer and 5 V power signals The following subsections describe the screw terminal assignments on the STP300 screw terminal panel by function 43 Chapter 4 Analog Input Screw Terminals Table 2 lists the screw terminal TB assignments for analog input connections on the STP300 screw terminal panel The corresponding resistors and their use are also listed Table 2 Analog Input Screw Terminal Assignments on the STP300 Resistor Use Bias Return Current Shunt TB J1 Pin Description Resistor Resistor 1 68 Analog Input 0 R9 2 67 Analog Input 8 R1 Analog Input O Return 3 34 Analog Input 1 R10 4 33 Analog Input 9 R2 Analog Input 1 Return 5 66 Analog Input 2 R11 6 65 Analog Input 10 R3 Analog Input 2 Return
7. One Shot Mode Support SupportsOneShot Yes Repetitive One Shot Mode Support SupportsOneShotRepeat Yes Up Down Counting Mode Support SupportsUpDown Edge to Edge Measurement Mode Support SupportsMeasure Continuous Edge to Edge Measurement Mode Support SupportsContinuousMeasure High to Low Output Pulse Support SupportsHighToLowPulse Yes Low to High Output Pulse Support SupportsLowToHighPulse Yes Variable Pulse Width Support SupportsVariablePulseWidth Yes None internal Gate Type Support SupportsGateNone Yes High Level Gate Type Support SupportsGateHighLevel Low Level Gate Type Support SupportsGateLowLevel Yes Yes High Edge Gate Type Support SupportsGateHighEdge Yes Low Edge Gate Type Support SupportsGateLowEdge Yes Level Change Gate Type Support SupportsGateLevel Clock Falling Edge Type SupportsClockFalling Clock Rising Edge Type SupportsClockRising Gate Falling Edge Type SupportsGateFalling Gate Rising Edge Type SupportsGateRising Interrupt Driven Operations Supportsinterrupt a High edge and low edge gates are supported for one shot and repetitive one shot modes High level and low level are supported for event counting and rate generation modes Calibration Runtng the Calibration UNY eitea ire Ae R TA L 119 Calibrating the Analog Input Subsystem i 120 Calibrating the Analog O
8. 1 A maximum with resettable fuse Physical Dimensions Length 6 875 inches 174 63 mm Width 4 2 inches 106 68 mm Weight 4 38 ounces 124 grams Environmental Storage temperature range Relative humidity Operating temperature range 0 C to 70 C 25 C to 85 C To 95 noncondensing 137 Appendix A 138 Connector Specifications Table 30 lists the connector specifications for the DT300 Series board Table 30 Connector Specifications Feature Specifications Connector part number AMP 68 pin 0 05 Subminiature D 749621 7 Shielded enclosure with jack screws AMP 750752 1 Recommended shielded cable Madison 28 GA Twisted Pair 68KDK00029 Specifications Screw Terminal Panel Specifications Table 31 lists the specifications for the STP300 screw terminal panel Table 31 STP300 Specifications Terminal material Board material Weight Mounting Feature Specifications Mechanical Ji 68 pin connector SCSI Il AMP Tyco 5787170 7 J2 26 pin connector 3M N2526 50K2RB Terminal block insulator Polyamide 6 6 GV Screw type M 2 5 x 5 Chrome plated steel Wire size 14 to 28 AWG Dimensions 4 9 inches W x 6 9 inches L x 0 90 inches H on 0 062 inches G10 FR4 Nickel plated brass FR4 7 ounces via four 4 40 screws Environmental Operational Relative humidity Storage temperature range 25 C to 85
9. 67 Analog Input 8 0 Return 68 Analog Input 0 143 Appendix B Screw Terminal Assignments for Connector J1 on the STP300 Table 34 lists the screw terminal assignments for connector J1 on the STP300 screw terminal panel Table 34 Pin Assignments for Connector J1 on the STP300 TB Ji Pin Description TB Ji Pin Description 1 68 Analog Input 0 2 67 Analog Input 8 0 Return 3 34 Analog Input 1 4 33 Analog Input 9 1 Return 5 66 Analog Input 2 6 65 Analog Input10 2 Return 7 32 Analog Input 3 8 31 Analog Input 11 3 Return 9 64 Analog Input 4 10 63 Analog Input 12 4 Return 11 30 Analog Input 5 12 29 Analog Input 13 5 Return 13 62 Analog Input 6 14 61 Analog Input 14 6 Return 15 28 Analog Input 7 16 27 Analog Input 15 7 Return 17 26 Amp Low 18 25 Analog Ground 19 58 DACO Output 20 57 DACO Return 21 60 DACO Reference In and Out 22 23 DAC1 Return 23 24 DAC1 Output 24 59 DAC1 Reference In and Out 25 42 Digital Ground 26 41 User Clock Input 0 27 40 User Counter Output 0 28 39 External Gate 0 29 8 Digital Ground 30 7 User Clock Input 1 31 6 User Counter Output 1 32 5 External Gate 1 33 8 Digital Ground 34 36 User Clock Input 2 35 37 User Counter Output 2 36 38 External Gate 2 37 42 Digital Ground 38 2 User Clock Input 3 39 3 User Counter Output 3 40 4 External Gate 3 41 1 5 V Output O 1 A 42 35 Power Ground 43 55 Digital Ground 44 55 Digital Ground
10. Timer Inputs 00 6 6 eens 154 a aT TTS ora E ta Sie ie tec a a Geta 155 Index a Pa eae Pe Sa ere E E Sa A 157 Contents 10 About this Manual This manual describes how to set up and install the following components DT300 Series software DT300 Series board STP300 screw terminal panel STP68 or STP68 DIN screw terminal panel 5B01 or 5B08 signal conditioning backplane 7BP16 1 7BP08 1 or 7BP04 signal conditioning backplane It describes how to wire signals to the board and how to verify the board s operation using the Quick DataAcq application This manual also describes the features of the DT300 Series boards the capabilities of the DT300 Series Device Driver and how to program the DT300 Series boards using the DT Open Layers for NET Class Library software Troubleshooting and calibration information is also provided Note For more information on the class library refer to the DT Open Layers for NET Class Library User s Manual If you are using the DataAcq SDK or a software application to program your device refer to the documentation for that software for more information Intended Audience This document is intended for engineers scientists technicians or others responsible for using and or programming the DT300 Series boards for data acquisition operations in Microsoft Windows XP Windows Vista or Windows 7 It is assumed that you have some familiarity with data acquisition principles and
11. 45 55 Digital Ground 46 56 External A D Trigger 47 21 Digital Ground 48 22 External A D Sample Clock Input 49 50 Digital I O Port A Line O 50 16 Digital I O Port A Line 1 51 49 Digital I O Port A Line 2 52 15 Digital I O Port A Line 3 53 48 Digital I O Port A Line 4 54 14 Digital I O Port A Line 5 144 Connector Pin Assignments Table 34 Pin Assignments for Connector J1 on the STP300 cont TB Ji Pin Description TB JI Pin Description 55 47 Digital I O Port A Line 6 56 13 Digital I O Port A Line 7 57 46 Digital I O Port B Line O 58 12 Digital I O Port B Line 1 59 45 Digital I O Port B Line 2 60 11 Digital I O Port B Line 3 61 44 Digital I O Port B Line 4 62 10 Digital I O Port B Line 5 63 43 Digital I O Port B Line 6 64 9 Digital I O Port B Line 7 65 54 Digital I O Port C Line 0 66 20 Digital I O Port C Line 1 67 53 Digital I O Port C Line 2 68 19 Digital I O Port C Line 3 69 52 Digital I O Port C Line 4 70 18 Digital I O Port C Line 5 71 51 Digital I O Port C Line 6 72 17 Digital Ground 145 Appendix B Screw Terminal Assignments for Connector J2 on the STP300 Table 35 lists the screw terminal assignments for connector J2 on the STP300 screw terminal panel Table 35 Pin Assignments for Connector J2 on the STP300 146 Pin Description Pin Description 1
12. C derated operation 0 C to 55 C To 95 noncondensing 139 Appendix A Cable Specifications Table 32 lists the specifications for the cable EP305 Table 32 EP305 Cable Specifications Feature Specifications Length 2 meters Conductors 34 twisted pairs shielded 28 AWG on 50 mil centers Connectors 1 68 pin self locking receptacle AMP Tyco 5749621 7 140 Connector Pin Assignments Connector Jl on the DT300 Series Board cc ad cokes 142 Screw Terminal Assignments for Connector Jl on the STP300 144 Screw Terminal Assignments for Connector J2 on the STP300 146 Screw Terminal Assignments for the STP68 and STP68 DIN 147 141 Appendix B 142 Connector J1 on the DT300 Series Board Table 33 lists the pin assignments of connector J1 on the DT300 Series board Table 33 Pin Assignments for Connector J1 on the DT300 Series Boards Va Signal Description nai Signal Description 1 5 V Output 1 A 2 User Clock Input 3 3 User Counter Output 3 4 External Gate 3 5 External Gate 1 6 User Counter Output 1 7 User Clock Input 1 8 Digital Ground 9 Digital I O Port B Line 7 10 Digital I O Port B Line 5 11 Digital I O Port B Line 3 12 Digital I O Port B Line 1 13 Digital I O Port A Line 7 14 Digital 1 O Port A Line 5 15
13. Connector SpeckicA HONS iii ct e Ria 138 crew Terminal Panel Specific OS E T a ie 139 Ello A E 140 131 Appendix A Analog Input Specifications Table 25 lists the specifications for the A D subsystem Feature Table 25 A D Subsystem Specifications DT301 302 Specifications DT303 304 Specifications DT321 322 Specifications Number of analog inputs Single ended pseudo differential 16 Differential 8 Number of gains 4 1 2 4 8 Resolution 12 bits 12 bits 16 bits Data encoding Offset binary System accuracy full scale Gain 1 0 03 0 03 0 01 Gain 2 0 04 0 04 0 02 Gain 4 0 05 0 05 0 03 Gain 8 0 05 0 05 0 03 Nonlinearity integral 1 0 LSB 1 0 LSB 4 0 LSB Differential linearity 0 5 LSB no missing 0 5 LSB no missing 1 2 LSB no missing 10 uV rms gain 200 pA rms current 10 uV rms gain 200 pA rms current codes codes codes to 15 bits Range V Bipolar 1 25 2 5 5 10 1 25 2 5 5 10 1 25 2 5 5 10 Unipolar 0 to 1 25 0 to 1 25 0 to 2 5 0 to 2 5 0 to 5 0 to 5 Oto 10 0 to 10 Drift Zero 30 uV 20 uV 30 uV 20 uV 25 uV 10 uV Gain C Gain C Gain C Gain 30 ppm C 30 ppm C 20 ppm C Input impedance Off 100 MQ 10 pF On 100 MQ 100 pF Input bias current 20 nA Common mode voltage 11 V maximum operational Maximum input volta
14. Internal A D Sample Clock 76 External A D Sample Clock si nici ina api i R 77 Analog Input Conversion Modes eens 77 Continuously Paced Scan Mode rr 78 Triggered Scan Mode lt s vse ss ves saves Kr Rr KR rr rr 78 Software Retriggered Scan Mode rr 78 Externally Retriggered Scan Mode n or 80 TER S nenita nd rr te a rr ir A aa 80 Trigger SourceS cis INS TE OS A A A A lt 80 Trigger Acquisition Modes rr 81 Post Trigger Acquisition 81 Pre Trigger Acquisition 82 About Trigger Acquisition or 84 Data Formati estrias tersa astra tia 86 Data Transfer ii AS IA SI elia ai 87 Error Conditions vir ia RR aa 87 Analog Output Features sesse sericese sees i a eed ee i 89 Output Resolution a Ca RNA i i N a RTE at 89 Analog Output Channels ex ae N R STER ART RTE RRR RA RTT 89 Output Ranges and Gains oooooooooconnncrr enn eee eee 89 Conversion Modes syss sean e 0c c ec E AA E E A E a A OEE REE A E ai 90 Data Formats orsa A ii be ee O 90 Digital I O Featutes iis compe spense casas lai lia aaa la ga ee 92 Digital T O LINES ia AR 92 Digital I O Resoltttion isis A A Ca TAL 92 Digital I O Operation Modes s 93 Counter Timer Features 0 A A A ads 94 Counter Timer Chamnels ce eee eee eee e eens 94 C T Clock Sourees ieo ivi lee e ba sinks Gate aloni e 95 Int rnaliG T Clock ti bdo eee ite dd EIA 95 External C T Clock a A A he See 95 Internally Cascaded Clock aeea ertoe needa tiisa keta
15. total of 262 144 samples per trigger using triggered scan mode Refer to page 77 for more information on the supported conversion modes If you wish you can also use software to inhibit a channel in the list This feature is useful if you want to discard acquired values from specific entries in the channel list You can enable or disable inhibition for each entry in the analog input channel list If enabled the value is discarded after the channel is read if disabled the value is not discarded after the channel is read Specifying Digital Input Lines in the Analog Input Channel List In addition to the analog input channels the DT300 Series board allows you to read 16 digital I O lines Port A lines 0 to 7 and Port B lines 0 to 7 using the analog input channel list This feature is particularly useful when you want to correlate the timing of analog and digital events To read these 16 digital I O lines specify physical channel 16 in the analog input channel list You can enter channel 16 anywhere in the list and can enter it more than once if desired Note If channel 16 is the only channel in the channel list the board can read this channel at a rate of 3 MSamples s Principles of Operation The digital channel is treated like any other channel in the analog input channel list therefore all the clocking triggering and conversion modes supported for analog input channels are supported for these digital I O lines if you s
16. 123 Chapter 9 Troubleshooting x e x e x e x x eee K eect eee eee 125 General Checklist EA E E AA ged Rhee die ani 126 Technical Support avoir rara riesa aa i pala sli alien 128 If Your Board Needs Factory Service 129 Appendix A Specifications iii 131 Analog Input Specifications LL 132 Analog Output Specifications 134 Digital 1 0 Specifications A MES SN GA lia bits 135 Counter Timer Specifications LL 136 Power Physical and Environmental Specifications 137 Connector Specifications R iii eri ii ta tte tae te ead ate eres gnats phd 138 Screw Terminal Panel Specifications e cece eee es 139 Cable Specifications ui ta ea eta baa Paden Pia wales R Taar 140 Contents Appendix B Connector Pin Assignments x x x x x x K x K x x K K eee 141 Connector J1 on the DT300 Series Board ccc cee tenes 142 Screw Terminal Assignments for Connector Jl on the STP300 144 Screw Terminal Assignments for Connector J2 on the STP300 146 Screw Terminal Assignments for the STP68 and STP68 DIN 147 Appendix C Using Your Own Screw Terminal Panel 149 Analog Inputs st lb aio eo a O globo ife i 151 Single Ended Inputs too pria a ROL rai 151 Pseudo Differential Inputs LL 151 Differential Inputs ici ili SOMA RA ALA as gael 152 Analog Outputs 00 O A A AA A E 153 Digital Inputs and Counter
17. 7 32 Analog Input 3 R12 8 31 Analog Input 11 R4 Analog Input 3 Return 9 64 Analog Input 4 R13 10 63 Analog Input 12 R5 Analog Input 4 Return 11 30 Analog Input 5 R14 12 29 Analog Input 13 R6 Analog Input 5 Return 13 62 Analog Input 6 R15 14 61 Analog Input 14 R7 Analog Input 6 Return 15 28 Analog Input 7 R16 16 27 Analog Input 15 R8 Analog Input 7 Return 17 26 Amp Low Jumper W1 Connects Amp Low to Analog Ground 18 25 Analog Ground Wiring Signals Analog Output and Power Screw Terminals Table 3 lists the screw terminal TB assignments for analog output and power connections on the STP300 screw terminal panel Table 3 Analog Output and Power Screw Terminal Assignments on the STP300 TB J1 Pin Description 19 58 DACO Output 20 57 DACO Return 21 60 DACO Reference 22 23 DAC1 Return 23 24 DAC1 Output 24 59 DAC1 Reference 41 1 5 V Output O 1A 42 35 Power Ground Counter Timer and Digital I O Screw Terminals Table 4 lists the screw terminal TB assignments for digital I O connections on the STP300 screw terminal panel Table 4 Counter Timer and Digital I O Screw Terminal Assignments on the STP300 TB J1 Pin Description TB Ji Pin Description 25 42 Digital Ground 50 16 Digital I O Port A Line 1 26 41 User Clock Input O 51 49 Digital I O Port A Line 2 27 40 User Counter
18. CGL entries x of CGLs per trigger 2 us Period A D sample clock frequency Max Retrigger 1 Frequency Min Retrigger Period c The value of 1 2 Hz assumes the minimum number of samples is 1 Data Encoding Table 14 DT300 Series Data Encoding Options DT300 Series AID D A DIN DOUT C T QUAD Binary Encoding Support SupportsBinaryEncoding Yes Yes Yes Yes Yes Twos Complement Support SupportsTwosCompEncoding Returns Floating Point Values ReturnsFloats Supported Device Driver Capabilities Channels Gain Table 15 DT300 Series Channel Options DT300 Series Number of Channels NumberOfChannels A D 172 D A DIN DOUT C T QUAD SE Support SupportsSingleEnded Yes SE Channels MaxSingleEndedChannels 16 DI Support SupportsDifferential Yes Yes Yes Yes DI Channels MaxDifferentialChannels Maximum Channel Gain List Depth CGLDepth Simultaneous Sample and Hold Support SupportsSimultaneousSampleHold 1024 Channel List Inhibit SupportsChannelListinhibit Yes a Channels 0 to 15 are provided for analog input channel 16 reads all 16 bits from the DIN subsystem Ports A and B If the channel gain list contains channel 16 only the board can read the digital input channels at a rate of 3 MSamples s b All 16 bits of the DIO lines from Ports A and B are assigned to A D input channel 16
19. Clock Inputs Input type Input load High level input voltage Low level input voltage Hysteresis Schmitt trigger rising edge sensitive 1 HCT14 TTL 2 0 V minimum 0 8 V maximum 0 4 V minimum 1 5 V maximum High level input voltage Low level input voltage Hysteresis High level input current Low level input current Minimum pulse width Termination High level input current 1 0 A Low level input current 1 0 pA Minimum pulse width 100 ns high 100 ns low Maximum frequency 5 0 MHz Termination 33 Q series resistor Gate Inputs Input type Schmitt trigger level sensitive Input load 1 HCT14 TTL 2 0 V minimum 0 8 V maximum 0 4 V minimum 1 5 V maximum 1 0 pA 1 0 pA 100 ns high 100 ns low 33 Q series resistor Counter Outputs Output driver Output driver high voltage Output driver low voltage Termination TTL 2 0 V minimum IOH 15 mA 2 4 V minimum IOH 3 mA 0 5 V maximum IOL 24 mA 0 4 V maximum IOL 12 mA 33 Q series resistor Specifications Power Physical and Environmental Specifications Table 29 lists the power physical and environmental specifications for the DT300 Series board Table 29 Power Physical and Environmental Specifications Feature Specifications Power 5 V 0 25 V 1 2 A nominal 5 V not used 12 V 55 mA maximum 48 mA nominal 42 V 50 mA maximum 38 mA nominal 5 V Power Out J1 1
20. DT300 Series board can acquire data from a single analog input channel or from a group of analog input channels Onboard channels are numbered 0 to 15 for single ended and pseudo differential inputs or 0 to 7 for differential inputs The following subsections describe how to specify the channels Specifying a Single Channel The simplest way to acquire data from a single channel is to specify the channel for a single value analog input operation using software refer to page 77 for more information on single value operations You can also specify a single channel using the analog input channel list described in the next section Specifying One or More Channels On the DT300 Series board you can read data from one or more analog input channels using an analog input channel list You can group the channels in the list sequentially either starting with 0 or with any other analog input channel or randomly You can also specify a single channel or the same channel more than once in the list Using software specify the channels in the order you want to sample them The analog input channel list corresponds to the channel list FIFO first in first out buffer on the board You can enter up to 1 024 entries in the channel list The channels are read in order using continuous paced mode or triggered scan mode from the first entry to the last entry in the channel list You can read the channels in the channel list up to 256 times per trigger for a
21. Output 0 52 15 Digital I O Port A Line 3 28 39 External Gate 0 53 48 Digital I O Port A Line 4 29 8 Digital Ground 54 14 Digital I O Port A Line 5 30 7 User Clock Input 1 55 47 Digital I O Port A Line 6 31 6 User Counter Output 1 56 13 Digital I O Port A Line 7 32 5 External Gate 1 57 46 Digital I O Port B Line O 33 8 Digital Ground 58 12 Digital I O Port B Line 1 34 36 User Clock Input 2 59 45 Digital I O Port B Line 2 35 37 User Counter Output 2 60 11 Digital 1 O Port B Line 3 36 38 External Gate 2 61 44 Digital I O Port B Line 4 45 Chapter 4 46 Table 4 Counter Timer and Digital I O Screw Terminal Assignments on the STP300 cont TB J1 Pin Description TB Ji Pin Description 37 42 Digital Ground 62 10 Digital I O Port B Line 5 38 2 User Clock Input 3 63 43 Digital I O Port B Line 6 39 3 User Counter Output 3 64 9 Digital 1 O Port B Line 7 40 4 External Gate 3 65 54 Digital I O Port C Line O 41 1 5 V Output 1A 66 20 Digital I O Port C Line 1 42 35 Power Ground 67 53 Digital I O Port C Line 2 43 55 Digital Ground 68 19 Digital I O Port C Line 3 44 45 46 56 External A D Trigger 69 52 Digital I O Port C Line 4 47 21 Digital Ground 70 18 Digital I O Port C Line 5 48 22 External A D Sample 71 51 Digital I O Port C Line 6 Clock Input 49 50 Digital I O Port A Line 0 72 17 Digital Ground Note If you are connecting a hi
22. Port C Line 3 20 20 Digital I O Port C Line 1 21 21 Digital Ground 22 22 External A D Sample Clock In 23 23 Analog Output 1 Return 24 24 Analog Output 1 25 25 Analog Ground 26 26 Amp Low 27 27 Analog Input 15 7 Return 28 28 Analog Input 7 29 29 Analog Input 13 5 Return 30 30 Analog Input 5 31 31 Analog Input 11 3 Return 32 32 Analog Input 3 33 33 Analog Input 9 1 Return 34 34 Analog Input 1 35 35 Power Ground 36 36 User Clock Input 2 37 37 User Counter Output 2 38 38 External Gate 2 39 39 External Gate 0 40 40 User Counter Output 0 41 41 User Clock Input 0 42 42 Digital Ground 43 43 Digital I O Port B Line 6 44 44 Digital I O Port B Line 4 45 45 Digital I O Port B Line 2 46 46 Digital I O Port B Line 0 47 47 Digital 1 O Port A Line 6 48 48 Digital I O Port A Line 4 49 49 Digital I O Port A Line 2 50 50 Digital I O Port A Line O 51 51 Digital I O Port C Line 6 52 52 Digital I O Port C Line 4 147 Appendix B Table 36 Screw Terminal Assignments for the STP68 and STP68 DIN Screw Terminal Panel cont TB E Signal Description TB S Signal Description 53 53 Digital I O Port C Line 2 54 54 Digital I O Port C Line 0 55 55 Digital Ground 56 56 External A D Trigger 57 57 Analog Output 0 Return 58 58 Analog Output 0 59 59 DAC1 Reference 60 60 DACO Reference 61 61 Analog Input 14 6 Return 62 62 Analog Input 6 63 63 Analog Input 12 4 Return 64 64 Analog Input 4 65 65 Analog I
23. Studio 6 0 and Microsoft C or C to develop your own application software for the DT300 Series boards using Windows XP Windows Vista or Windows 7 the DataAcq SDK complies with the DT Open Layers standard DTx EZ DIx EZ provides ActiveX controls which allow you to access the capabilities of the DT300 Series boards using Microsoft Visual Basic or Visual C DTx EZ complies with the DT Open Layers standard DAQ Adaptor for MATLAB Data Translations DAQ Adaptor provides an interface between the MATLAB Data Acquisition DAQ subsystem from The MathWorks and Data Translations DT Open Layers architecture LV Link An evaluation version of LV Link is included on the Data Acquisition OMNI CD Use LV Link if you want to use the LabVIEW graphical programming language to access the capabilities of a DT300 Series board Refer to Data Translation s web site www datatranslation com for information about selecting the right software package for your needs 18 Overview Accessories The following optional accessories are available for the DT300 Series board STP300 screw terminal panel Screw terminal panel with two connectors Connector J1 accommodates the analog and digital I O signals from the DT300 Series board and connector J2 allows you to connect 5B and 7B Series signal conditioning backplanes STP68 screw terminal panel A generic 68 pin screw terminal panel that has one connector to accommodate the signals provided
24. Symptom Possible Cause Possible Solution Computer does Board is not seated properly Check that the slot in which your DT300 Series board not boot is located is a PCI slot that the board is correctly seated in the slot and that the board is secured in the slot with a screw The power supply of the Check the power requirements of your system computer is too small to handle resources and if needed get a larger power supply all the system resources consult the board s specifications on page 132 of this manual System lockup Board is not seated properly Check that the slot in which your DT300 Series board is located is a PCI slot that the board is correctly seated in the slot and that the board is secured in the slot with a screw 127 Chapter 9 Technical Support If you have difficulty using a DT300 Series board Data Translation s Technical Support Department is available to provide technical assistance To request technical support go to our web site at http www datatranslation com and click on the Support link When requesting technical support be prepared to provide the following information e Your product serial number e The hardware software product you need help on e The version of the OMNI CD you are using e Your contract number if applicable If you are located outside the USA contact your local distributor see our web site www datatranslation com for the name and telephone numbe
25. While the DIN subsystem itself is incapable of continuous operation you can perform a continuous DIN operation by specifying channel 16 in the channel gain list of the A D subsystem and starting the A D subsystem Table 16 DT300 Series Gain Options DT300 Series Programmable Gain Support SupportsProgrammableGain AID Yes D A DIN DOUT C T QUAD Number of Gains NumberOfSupportedGains Gains Available SupportedGains 1 2 4 8 111 Chapter 7 Ranges Table 17 DT300 Series Range Options SupportedVoltageRanges DT300 Series A D D A DIN DOUT C T QUAD Number of Voltage Ranges NumberOfRanges 1 or 22 4 or 1 0 0 0 0 Available Ranges 10 V O to 10 V 10 V Oto 10 V 5 V or O to 5 VP Current Output Support SupportsCurrentOutput a DT301 DT302 DT303 and DT304 boards support two input ranges 10 V and 0 to 10 V DT321 and DT322 boards support one input range 10 V b DT302 and DT304 boards support four output ranges 10 V 0 to 10 V 5 V and 0 to 5 V DT322 boards support one output range 10 V Resolution 112 Table 18 DT300 Series Resolution Options DT300 Series A D D A DIN DOUT C T QUAD Software Programmable Resolution SupportsSoftwareResolution Yes Yes Number of Resolutions NumberOfResolutions 1 1 2a 2a 1 1 Available Resolutions SupportedResolutions 120r1
26. an STP300 Screw Terminal Panel 000 0 e eee eee eee 33 Configuring Jumpers on the STP300 0 00 34 Configuring Jumper W1 Common Ground Sense 35 Configuring Jumpers W4 to W7 Analog Outputs on a 5B01 or 7BP16 1 Backplane js3 io pies SEN Mews wa Oe eae wR a 35 Configuring Resistors on the STP300 0 00 36 Configuring Resistors R1 to R8 Bias Return o 36 Configuring Resistors R9 to R16 Current Shunt 36 Using an STP68 or STP68 DIN Screw Terminal Panel 37 Using 5B and 7B Series Signal Conditioning Backplanes 6 600 e eee eee 38 Attaching a 5B Series Backplane 2 0 66 38 Attaching a 7B Series Backplane 6 66 ccc cece eee ees 38 Considerations When Using 5B or 7B Series Accessories 39 Contents Chapter 4 Wiring SigNalS o ooococcoonncor eee 41 Before Witing Ea one ut ok a POE eee ae A 43 Wiring Recommendations LL 43 STP300 Screw Terminal Assignments LL 43 Analog Input Screw Terminals e e 0 44 Analog Output and Power Screw Terminals 000000008 45 Counter Timer and Digital I O Screw Terminals e 45 Connecting Analog Input Signals 0 0 47 Connecting Single Ended Voltage Inputs 2 0 66 6c eee 47 Connecting Pseudo Differential Voltage Inputs 660 c eee eee eee 48 Connecting Differential Voltage Inputs LL 49 Connecting Current Loop Inputs K e ee
27. counting operation In this example the gate type is low level high level disables operation Gate Input low level Signal 0 enables operation External C T AHH Clock 0 Input Signal 3 events are counted while the operation is enabled event counting event counting operation starts operation stops Figure 34 Example of Event Counting Frequency Measurement Use frequency measurement mode to measure the frequency of the signal from counter s associated clock input source over a specified duration In this mode use an external C T clock source refer to page 95 for more information on the external C T clock source One way to perform a frequency measurement is to use the same wiring as an event counting application that does not use an external gate signal as shown in Figure 35 Digital Ground Y TB25 TB26 Signal Source D O O User Clock Input 0 D STP300 a Panel Figure 35 Connecting Frequency Measurement Signals without an External Gate Input Shown for Clock Input 0 99 Chapter 6 100 In this configuration use software to specify the counter timer mode as frequency measurement or event counting and the duration of the Windows timer over which to measure the frequency The Windows timer uses a resolution of 1 ms In this configuration frequency is determined using the following eq
28. enter the number of seconds during which events will be counted Click Start to start the frequency measurement operation The operation automatically stops after the number of seconds you specified has elapsed and the frequency is displayed on the screen If you want to stop the frequency measurement operation when it is in progress click Stop 67 Chapter 5 Testing Pulse Output To verify that the board can perform a pulse output operation do the following 1 Connect scope to counter timer 0 on the DT300 Series board Refer to page 56 for an example of how to connect a scope a pulse output to counter timer 0 Note The Quick DataAcq application works only with counter timer 0 2 In the Quick DataAcq application choose Pulse Generator from the Control menu 3 Select the appropriate DT300 Series board from the Board list box 4 Select either Continuous to output a continuous pulse stream or One Shot to output one pulse 5 Select either Low to high to output a rising edge pulse the high portion of the total pulse output period is the active portion of the signal or High to low to output a falling edge pulse the low portion of the total pulse output period is the active portion of the signal 6 Enter a percentage or use the slider to select a percentage for the pulse width The pulse width determines the duty cycle of the pulse 7 Click Start to generate the pulse s The application displays th
29. following steps to configure the device driver 1 2 3 5 Open the Control Panel Double click the Open Layers Control Panel icon Select the DT300 Series board to configure and then click Advanced By default the prompt Handles Overloaded Bus is checked If you are using an Optiplex computer or experience timing problems with your DT300 Series board uncheck this box When you are finished click Close Once the driver is loaded perform the steps in Chapter 3 starting on page 31 to attach and configure the screw terminal panel and signal conditioning backplane 2 Z Attaching and Configuring a Screw Terminal Panel Backplane Using an STP300 Screw Terminal Panel cne cii os es EE 33 Using an STP68 or STP68 DIN Screw Terminal Panel 37 Using 5B and 7B Series Signal Conditioning Backplanes 00000 ee eee 38 Chapter 3 32 C Install the Board and Load the Device Driver See page 23 CE cena Attach and Configure a Screw Terminal Panel and Signal Conditioning Backplane this chapter Wire Signals see page 41 C Verify the Operation of the Board see page 59 p Attaching and Configuring a Screw Terminal Panel Backplane Using an STP300 Screw Terminal Panel This section describes how to attach an STP300 screw terminal panel to a DT300 Series board and how to configure a STP300 screw terminal panel for us
30. or retrigger In this example pre trigger analog input data is acquired on each clock pulse of the A D sample clock for two scans then the board waits for the software retrigger event When the software retrigger occurs the board begins acquiring pre trigger data until the post trigger event occurs Then the board finishes scanning the channel list the specified number of times acquiring the data as post trigger samples On all subsequent software retriggers post trigger data is acquired A D Sample Clock Chano Chan 0 Chan 0 Chan 0 Chano Chan 0 Chan 1 Chan 1 Chan1 Chan1 2 Chan 1 Ch l f Retrigger event Pre trigger event occurs Re trigger event occurs Post trigger event occurs post trigger pre trigger data is pre trigger data is occurs post trigger data data is acquired for acquired for 2 scans of acquired until is acquired until the end 2 scans of the the CGL post trigger occurs of the number of scans CGL Figure 30 Continuous About Trigger Mode with Triggered Scan 85 Chapter 6 86 Data Format DT300 Series boards use offset binary data encoding to represent unipolar and bipolar signals Using software specify the data encoding as binary In software the analog input value is returned as a code To convert the code to voltage use the following formulas LSB _FSR 2N Vout Code LSB offset where e LSB is the least signific
31. reduce the sampling rate Host Block Overflow Indicates that the host computer is not handling data from the board fast enough This error is reported if the board completes the transfer of a block of input data to the circular buffer in the host computer before the host computer has finished reading the last block of data The host computer can clear this error To avoid this error ensure that you allocated at least three buffers at least as large as the sampling rate for example if you are using a sampling rate of 100 kSamples s 100 kHz specify a buffer size of 100 000 samples If any of these error conditions occurs the board stops acquiring and transferring data to the host computer Note DT Open Layers reports any of these errors as an overrun message Principles of Operation Analog Output Features An analog output D A subsystem is provided on the DT302 DT304 and DT322 boards only This section describes the following features of the D A subsystem Output resolution Analog output channels Output ranges and gains Conversion modes Data formats and transfer Error conditions Output Resolution Table 9 lists the output resolutions supported by the DT302 DT304 and DT322 boards The resolution is fixed for each board type therefore it cannot be programmed in software Table 9 Supported Analog Output Resolutions Board Type Supported Resolution DT302 12 bits DT304 12 bits DT32
32. subsystem For example counter 0 corresponds to C T subsystem element 0 counter 3 corresponds to C T subsystem element 3 Using software you can internally route the clock output signal from one user counter to the clock input signal of the next user counter to internally cascade the counters In this way you can create a 32 bit counter without externally connecting two counters together Principles of Operation C T Clock Sources The following clock sources are available for the user counters e Internal C T clock e External C T clock e Internally cascaded clock Refer to the following subsections for more information on these clock sources Internal C T Clock The internal C T clock uses a 20 MHz time base Counter timer operations start on the rising edge of the clock input signal Through software specify the clock source as internal and the frequency at which to pace the counter timer operation this is the frequency of the clock output signal The maximum frequency that you can specify for the clock output signal is 10 MHz For a 16 bit counter the minimum frequency that you can specify for the clock output signal is 305 17 Hz For a 32 bit cascaded counter the minimum frequency that you can specify for the clock output signal is 0 00465 Hz which corresponds to a rate of once every 215 seconds External C T Clock The external C T clock is useful when you want to pace counter timer operations at rates not available w
33. that you understand your application How This Manual is Organized This manual is organized as follows Chapter 1 Overview describes the major features of the board as well as the supported software and accessories for the board It also provides an overview of the getting started procedure Chapter 2 Installing the Board and Loading the Device Driver describes how to install the DT300 Series board and load the DT300 Series device driver Chapter 3 Attaching and Configuring a Screw Terminal Panel Backplane describes how to attach and configure the STP300 STP68 or STP68 DIN screw terminal panel and the 5B and 7B Series signal conditioning backplanes Chapter 4 Wiring Signals describes how to wire signals to a DT300 Series board 11 About this Manual Chapter 5 Verifying the Operation of a DT300 Series Board describes how to verify the operation of a DT300 Series board with the Quick DataAcq application Chapter 6 Principles of Operation describes all of the board s features and how to use them in your application Chapter 7 Supported Device Driver Capabilities lists the data acquisition subsystems and the associated features accessible using the DT300 Series Device Driver Chapter 8 Calibration describes how to calibrate the analog I O circuitry of the board Chapter 9 Troubleshooting provides information that you can use to resolve problems with t
34. uA 100 ns high 100 ns low See Data Throughput spec above 33 Q series resistor External A D digital TTL trigger Input type Input load High level input voltage Low level input voltage Hysteresis High level input current Low level input current Minimum pulse width Termination Schmitt trigger edge sensitive 1 HCT14 TTL 2 0 V minimum 0 8 V maximum 0 4 V minimum 1 5 V maximum 1 0 LA 1 0 A 100 ns high 100 ns low 33 Q series resistor 133 Appendix A Analog Output Specifications Table 26 lists the specifications for the D A subsystem Table 26 D A Subsystem Specifications Feature Specifications Number of analog output channels DT302 DT304 and DT322 only 2 Resolution DT302 DT304 12 bits DT322 16 bits Data encoding input Offset binary Nonlinearity integral DT302 DT304 1 LSB DT322 4 LSB Differential linearity DT302 DT304 0 5 LSB monotonic DT322 1 LSB monotonic Output range DT302 DT304 10 V O to 10 V 5 V O to 5 V DT322 10 V Zero Error Software adjustable to zero Gain Error DT302 DT304 2 LSB reference DT322 6 LSB reference Current output 5 mA minimum 10 V 2 ko Output impedance 0 3 Q typical Capacitive drive capability 0 001 uF minimum no oscillations Protection Short circuit to Analog Common Power on voltage 0 V 10 mV maximum Settling time to 0 01 of FSR 50 u
35. 000 49 Wi Digital I O 24 9909900009 17 64 0090909099 57 Analog Outputs Gnd Amp Low Digital I O 72 9900900908 85 J2 26 Pin Connecto 5 Figure 4 Layout of the STP300 Screw Terminal Panel Note The STP300 panel is designed to fit inside a standard 4 inch by 8 inch plastic enclosure Configuring Jumpers on the STP300 The STP300 screw terminal panel contains jumper W1 and jumpers W4 to W7 Jumper W1 provides a common ground sense jumpers W4 to W7 are associated with analog outputs on the 5B01 and 7BP16 1 signal conditioning backplanes The following subsections describe how to configure these jumpers Note The screw terminal panels are shipped with enough jumper plugs to select every possible configuration Spare jumper plugs are stored on the panel itself on the posts marked spare Save these jumper plugs for future use 34 Attaching and Configuring a Screw Terminal Panel Backplane Configuring Jumper W1 Common Ground Sense When shipped from the factory jumper W1 connects the low side of the input amplifier Amp Low on the DT300 Series board to analog ground When using pseudo differential analog inputs remove jumper W1 and connect Amp Low to a remote common mode voltage to reject offset voltages common to all 16 input channels Refer to page 48 for an example of removing jumper W1 Note If you are using a 5B Series backplane install jumper W3 on the 5B01 or 5B08 backplane
36. 01 or 5B08 backplane to the STP300 screw terminal panel do the following 1 Plug one end of the AC1315 cable into the J2 connector of the STP300 screw terminal panel as shown in Figure 6 2 Plug the other end of the AC1315 cable into the 26 pin connector on the 5B01 or 5B08 backplane 3 Connect power supply PWR 977 to the 5 V and power ground screw terminals on the 5B Series backplane and to the wall outlet J2 Connector o STP300 l To DT300 Series AC1315 board Cable 5B01 or 5B08 PWR 977 Power Suppl To wall outlet ppy Figure 6 Connecting the 5B01 or 5B08 Backplane to the STP300 Attaching a 7B Series Backplane To connect a 7B Series signal conditioning backplane to the STP300 do the following while referring to Figure 7 1 Plug one end of the AC1315 cable into the J2 connector of the STP300 screw terminal panel 2 Plug the other end of the AC1315 cable into the 26 pin connector of the AC1393 adapter cable then attach the 25 pin connector of the AC1393 adapter cable to the 7B Series backplane 3 Connect power supply HES14 21 to the V A and COM screw terminals on the 7B Series backplane and to the wall outlet 38 Attaching and Configuring a Screw Terminal Panel Backplane AC1393 J2 Connector Adapter Cable STP300 y i 7BP16 1 7BP08 1 7BP04 1 To DT300 Series AC1315 board Cable HES14 21 Power Supply To wall outlet Fi
37. 2 16 bits Analog Output Channels The DT302 DT304 and DT322 boards support two serial multiplying DC level analog output channels DACO and DAC1 Refer to Chapter 4 starting on page 41 for information on how to wire analog output signals to the board using the screw terminal panel You configure the channel type as differential through software Within each DAC the digital data is double buffered to prevent spurious outputs then output as an analog signal Both DACs power up to a value of 0 V 10 mV Resetting the board does not clear the values in the DACs The DT300 Series board can output data from a single analog output channel only Specify the channel for a single value analog output operation using software refer to Conversion Modes on this page for more information on single value operations Output Ranges and Gains For the DT302 and DT304 board you can specify one of the following ranges for each DAC using software 10 V 0 to 10 V 5 V or 0 to 5 V For the DT322 board the range is fixed at 10 V 89 Chapter 6 In software specify a gain of 1 for analog output operations Conversion Modes DT302 DT304 and DT322 boards can perform single value operations only Use software to specify the range gain and analog output channel among other parameters then output the data from the specified channel You cannot specify a clock source trigger source or buffer Single value operations stop a
38. 393 19 AC1393 adapter 38 EP305 19 33 calibration 18 analog input subsystem 120 analog output subsystem 123 running the utility 119 cascading counter timers 96 116 externally 54 56 57 CGLDepth 111 channel list 74 channel type differential 111 single ended 111 channel gain list depth 111 channel list inhibit 111 channels analog input 73 analog output 89 counter timer 94 digital I O 92 number of 111 CJC on 5B Series modules 39 clock input signal 94 clock sources external A D sample clock 77 external C T clock 95 internal A D sample clock 76 internal C T clock 95 internal retrigger clock 79 internally cascaded C T clock 96 clocks base frequency 115 external 115 internal 115 maximum external clock divider 115 maximum throughput 115 minimum external clock divider 115 minimum throughput 115 common ground sense jumper 35 configuring the STP300 screw terminal panel 33 connecting signals analog outputs 51 current loop analog inputs 50 differential analog inputs 49 digital inputs and outputs 52 event counting applications 53 externally cascaded counter timers 54 56 57 frequency measurement applications 55 pseudo differential analog inputs 48 pulse output applications 56 single ended analog inputs 47 connector J1 pin assignments DT300 Series board 142 STP300 screw terminal panel 144 connector J2 pin assignments STP300 screw terminal panel 146 continuous analog input about trigger 109 post trigger 109 pre trigger 109 c
39. 6 120r16 8 16 19 16 a When configured for 16 bits of resolution both element 0 and element 1 use DIO bits 15 to 0 Ports A and B are combined however you cannot use both elements at the same time When configured for 8 bits of resolution element 0 uses bits 7 to 0 Port A and element 1 uses bits 15 to 8 Port B Port C element 2 always uses a fixed resolution of 7 and cannot be combined with Port A and Port B b The DT301 DT302 DT303 and DT304 boards support 12 bit resolution The DT321 and DT322 boards support 16 bit resolution Supported Device Driver Capabilities Thermocouple and RTD Support Table 19 DT300 Series Thermocouple and RTD Support Options DT300 Series AID D A DIN DOUT C T QUAD Thermocouple Support SupportsThermocouple RTD Support SupportsRTD Resistance Support ReturnsOhms Voltage Converted to Temperature in Hardware SupportsTemperatureDatalnStream Supported Thermocouple Types ThermocoupleType Supported RTD Types RTDType Supports CJC Source Internally in Hardware SupportsCjcSourcelnternal Supports CJC Channel SupportsCjcSourceChannel Available CJC Channels CjcChannel Supports Interleaved CJC Values in Data Stream SupportsInterleavedCjcTemperaturesInStream Supports Programmable Filters SupportsTemperatureFilters Programmable Filter Types TemperatureFilterType IEPE Support Table 20 D
40. 76 for more information on the A D sample clock The conversion rate of each scan is determined by the frequency of the Triggered Scan Counter on the board the Triggered Scan Counter is a 24 bit counter with a 20 MHz clock Using software specify the frequency of the software retrigger The minimum retrigger frequency is 1 2 Hz 1 2 Samples s Table 8 lists the maximum retrigger frequency supported by the DT300 Series boards Table 8 Maximum Retrigger Frequency Maximum Board Retrigger Frequency DT301 302 155 kHz DT303 304 219 kHz DT321 322 165 kHz The appropriate retrigger frequency depends on a number of factors determined by the following equations Min Retrigger of CGL entries x of CGLs per trigger 2 us Period A D sample clock frequency Max Retrigger 1 Frequency Min Retrigger Period For example if you are using 16 channels in the channel list CGL scanning the channel list 256 times every trigger or retrigger and using an A D sample clock with a frequency of 100 kHz set the maximum retrigger frequency to 24 41 Hz since 24 41 Hz 1 16 256 2 us 100 kHz To select software retriggered scan mode use software to specify the following parameters e The dataflow as Continuous ContinuousPreTrigger or ContinuousPrePostTrigger about trigger e Triggered scan mode as enabled e The retrigger source as software e The number of times to scan per trigger or retrigg
41. Analog Input O 2 Analog Input 8 3 Analog Ground 4 Analog Input 9 5 Analog Input 1 6 Analog Ground 7 Analog Input 2 8 Analog Input 10 9 Analog Ground 10 Analog Input 11 11 Analog Input 3 12 Analog Ground 13 Analog Input 4 14 Analog Input 12 15 Analog Ground 16 Analog Input 13 17 Analog Input 5 18 Analog Ground 19 Analog Input 6 20 Analog Input 14 21 Analog Ground 22 Analog Input 15 23 Analog Input 7 24 Analog Ground 25 Amp Low 26 Not Connected a Signals Analog Input 8 to Analog Input 15 are not available on the 5B08 backplane Connector Pin Assignments Screw Terminal Assignments for the STP68 and STP68 DIN Table 36 lists the screw terminal assignments for the STP68 and STP68 DIN screw terminal panel Table 36 Screw Terminal Assignments for the STP68 and STP68 DIN Screw Terminal Panel J1 Ji TB Pin Signal Description TB Pin Signal Description 1 1 5 V Output O 1A 2 2 User Clock Input 3 3 3 User Counter Output 3 4 4 External Gate 3 5 5 External Gate 1 6 6 User Counter Output 1 7 7 User Clock Input 1 8 8 Digital Ground 9 9 Digital I O Port B Line 7 10 10 Digital I O Port B Line 5 11 11 Digital I O Port B Line 3 12 12 Digital I O Port B Line 1 13 13 Digital I O Port A Line 7 14 14 Digital I O Port A Line 5 15 15 Digital I O Port A Line 3 16 16 Digital I O Port A Line 1 17 17 Digital Ground 18 18 Digital I O Port C Line 5 19 19 Digital I O
42. DATA TRANSLATION UM 16501 T DT300 Series User s Manual Seventeenth Edition April 2010 Data Translation Inc 100 Locke Drive Marlboro MA 01752 1192 508 481 3700 www datatranslation com Fax 508 481 8620 E mail info datx com Copyright O 1997 2010 by Data Translation Inc All rights reserved Information furnished by Data Translation Inc is believed to be accurate and reliable however no responsibility is assumed by Data Translation Inc for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent rights of Data Translation Inc Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer software clause at 48 C F R 252 227 7013 or in subparagraph c 2 of the Commercial Computer Software Registered Rights clause at 48 C F R 52 227 19 as applicable Data Translation Inc 100 Locke Drive Marlboro MA 01752 Data Translation is a registered trademark of Data Translation Inc DT Open Layers DT Open Layers for NET Class Library Data Acq SDK Data Acquisition OMNI CD LV Link and DTx EZ are trademarks of Data Translation Inc All other brand and product names are trademarks or registered trademarks of their respective companies Radio an
43. Digital I O Port A Line 3 16 Digital I O Port A Line 1 17 Digital Ground 18 Digital I O Port C Line 5 19 Digital I O Port C Line 3 20 Digital I O Port C Line 1 21 Digital Ground 22 External A D Sample Clock In 23 Analog Output 1 Return 24 Analog Output 1 25 Analog Ground 26 Amp Low 27 Analog Input 15 7 Return 28 Analog Input 7 29 Analog Input 13 5 Return 30 Analog Input 5 31 Analog Input 11 3 Return 32 Analog Input 3 33 Analog Input 9 1 Return 34 Analog Input 1 35 Power Ground 36 User Clock Input 2 37 User Counter Output 2 38 External Gate 2 39 External Gate 0 40 User Counter Output 0 41 User Clock Input 0 42 Digital Ground 43 Digital I O Port B Line 6 44 Digital I O Port B Line 4 45 Digital I O Port B Line 2 46 Digital I O Port B Line O 47 Digital I O Port A Line 6 48 Digital 1 O Port A Line 4 49 Digital I O Port A Line 2 50 Digital 1 O Port A Line O 51 Digital I O Port C Line 6 52 Digital I O Port C Line 4 53 Digital I O Port C Line 2 54 Digital I O Port C Line O 55 Digital Ground 56 External A D Trigger Connector Pin Assignments Table 33 Pin Assignments for Connector J1 on the DT300 Series Boards cont Na Signal Description Te Signal Description 57 Analog Output 0 Return 58 Analog Output 0 59 DAC1 Reference 60 DACO Reference 61 Analog Input 14 6 Return 62 Analog Input 6 63 Analog Input 12 4 Return 64 Analog Input 4 65 Analog Input 10 2 Return 66 Analog Input 2
44. ER ARRE RR TAE 96 Gato PES id a2 aie ee pile oe ii Oa i 96 Pulse Outputs ci el 97 Counter Timer Operation Modes rr 97 Event COURSE ina ii ia iii i 98 Frequency Measurement rr 99 Rate Generation eces iii aa rad beds ieri 101 Gn Shot Ms A AR NRE ada 103 Repetitive One Shot ni at 105 Contents Chapter 7 Supported Device Driver CapabilitieS 107 Data Flow and Operation Options 109 Buffering scia e re phe je eee 110 Triggered Scan Mode eat es de cana el o led de os bia A ba la 110 Data Encoding era A A ele OE a as 110 Channels ii senii ngoie il tarea drena LIE 111 Gan iena il DO e elia ce 111 Ranges ae A ea en e ie aa 112 Resolution ras rg aaa lega aaa 112 Thermocouple and RTD Support runnur rnrn r rrrrr rren 113 TEPE SUpport aai 31 2 hee aah OC EO GU ea 113 NASSCLS keniodecishegeiteetaroyde rr bea ies pali aaa 114 Clocks eil ea li atei i Ra N 115 Counter Timers ses toi een cea A eect die Re back ARE AED 116 Chapter 8 Calibration vaas nea 9 Ta K RRR eee 117 Running the Calibration Utility 0 6 6 119 Calibrating the Analog Input Subsystem K c een eee 120 Configuring for an External Reference 0000 120 Using the Auto Calibration Procedure 0 0 00 120 Using the Manual Calibration Procedure 00000 121 Calibrating the Analog Output Subsystem K c eens 123 Configuring for an External Meter 123 Using the Calibration Procedure ccc ene
45. Screw Terminal Panel Backplane Using an STP68 or STP68 DIN Screw Terminal Panel To attach the STP68 or STP68 DIN screw terminal panel to the DT300 Series board you need the EP305 or equivalent cable The STP68 STP68 DIN and the EP305 are offered by Data Translation as accessories to the DT300 Series boards Connector J1 on the STP68 and STP68 DIN attaches to connector J1 on the DT300 Series board Figure 5 illustrates how to attach the STP68 or STP68 DIN screw terminal panel to a DT300 Series board DT330 Series J1 EP305 Cable Board J1 STP68 or STP68 DIN Screw Terminal Panel Figure 5 Attaching the STP68 or STP68 DIN Screw Terminal Panel to a DT330 Series Board The STP68 and STP68 DIN screw terminal panels do not require configuration 37 Chapter 3 Using 5B and 7B Series Signal Conditioning Backplanes This section describes how to attach a 5B or 7B Series signal conditioning backplane to an STP300 screw terminal panel and considerations when using signal conditioning accessories with DT300 Series boards Attaching a 5B Series Backplane If you want to condition your analog signals you can attach a 5B01 or 5B08 signal conditioning backplane to the STP300 using the AC1315 cable The 5B01 and 5B08 backplanes 5B Series signal conditioning modules AC1315 cable and the PWR 977 power supply are offered by Data Translation as accessories to the DT300 Series boards To attach a 5B
46. T clock 95 internal A D clock 115 internal A D sample clock 76 115 internal C T clock 95 115 internal retrigger clock 79 110 frequency measurement 99 G gain actual available 111 analog input 75 analog output 89 number of 111 programmable 111 gain analog input 76 gate input signal 94 96 gate type 96 falling edge 96 high level 96 high edge 116 high level 116 internal 116 low edge 116 low level 96 116 none software 96 rising edge 96 generating continuous pulses 101 H help 125 help online 61 HES14 21 power supply 19 high edge gate type 96 116 high level gate type 96 116 high to low pulse output 97 Host Block Overflow error 88 j inhibiting values from a channel 74 inprocess buffers 110 input configuration differential analog 47 pseudo differential analog 47 single ended analog 47 Input FIFO Overflow error 88 input ranges 75 inserting the board 28 internal clock 115 A D sample 76 C T 95 internal gate type 96 116 internal retrigger clock 79 J J1 connector pin assignments DT300 Series board 142 STP300 screw terminal panel 144 STP68 panel 147 J2 connector pin assignments STP300 screw terminal panel 146 jumper W1 35 jumpers W4 to W7 35 L LabVIEW 18 level gate type high 96 low 96 loading the device driver Windows 7 30 Windows Vista 29 Windows XP 29 low edge gate type 96 116 low level gate type 96 116 low to high pulse output 97 LV Link 18 M MaxDifferentialChannels 111 M
47. T300 Series IEPE Support Options DT300 Series A D D A DIN DOUT C T QUAD Software Programmable AC Coupling SupportsACCoupling Software Programmable DC Coupling SupportsDCCoupling Software Programmable External Excitation Current Source SupportsExternalExcitationCurrentSrc Software Programmable Internal Excitation Current Source SupportsInternalExcitationCurrentSrc Available Excitation Current Source Values SupportedExcitationCurrentValues 113 Chapter 7 Triggers 114 Table 21 DT300 Series Trigger Options DT300 Series A D D A DIN DOUT C T QUAD Software Trigger Support SupportsSoftwareTrigger Yes Yes Yes Yes Yes External Positive TTL Trigger Support SupportsPosExternalTTLTrigger Yes Yes External Negative TTL Trigger Support SupportsNegExternalTTLTrigger Yes External Positive TTL Trigger Support for Single Value Operations SupportsSvPosExternalTTLTrigger External Negative TTL Trigger Support for Single Value Operations SupportsSvNegExternalTTLTrigger Positive Threshold Trigger Support SupportsPosThresholdTrigger Negative Threshold Trigger Support SupportsNegThresholdTrigger Digital Event Trigger Support SupportsDigitalEventTrigger Supported Device Driver Capabilities Clocks Table 22 DT300 Series Clock Options DT300 Series A D D A DIN DOUT C T QUAD Internal Clock Support SupportsI
48. TL Trigger input signal connected to screw terminal TB46 on the STP300 screw terminal panel pin 56 of connector J1 The trigger signal is TTL compatible Using software specify the trigger source as a positive external digital trigger or negative external digital trigger Trigger Acquisition Modes DT300 Series boards can acquire data in post trigger mode pre trigger mode or about trigger mode These trigger acquisition modes are described in more detail in the following subsections Post Trigger Acquisition Use post trigger acquisition mode continuous mode when you want to acquire data when a post trigger or retrigger if using triggered scan mode occurs Using software specify e The dataflow as Continuous e The trigger source to start the post trigger acquisition the post trigger source as any of the supported trigger sources Refer to page 77 for more information on the supported conversion modes refer to page 80 for information on the supported trigger sources Post trigger acquisition starts when the board detects the post trigger event and stops when the specified number of post trigger samples has been acquired or when you stop the operation If you are using triggered scan mode the board continues to acquire post trigger data using the specified retrigger source to clock the operation Refer to page 78 for more information on triggered scan mode Figure 25 illustrates continuous post trigger mode using a channel l
49. Vout 2010 0 000305 9 98 V Vout 9 367 V For the DT301 DT302 DT303 and DT304 boards the board outputs FFFh plus full scale for above range signals and 000h minus full scale for below range signals For the 16 bit resolution DT321 and DT322 boards the board outputs FFFFh plus full scale for above range signals and 0000h minus full scale for below range signals Data Transfer The board packs two input samples an even and an odd sample into each transfer to the host computer Samples corresponding to entries 0 2 4 and so on in the channel list are considered even samples samples corresponding to entries 1 3 5 and so on in the channel list are considered odd samples Using flags internally the board determines whether the acquired samples are pre trigger or post trigger samples These flags are not transferred to the host computer The host computer can read the register on the board to determine where the post trigger data starts Note that the host computer cannot read data directly from the board the data must be transferred to the host computer Using PCI bus mastering the board transfers the analog input data to a 256 KB circular buffer in the host computer this buffer is dedicated to the hardware The board treats each buffer as two consecutive 128 KB blocks of memory Note When you stop an analog input operation a final block of two samples is transferred even if only one sample is required The host
50. agram 20 Part 1 Getting Started 2 Installing the Board and Loading the Device Driver Pin 25 Setting Up The Computer a Sa ee A ed co 26 SEI up an EPA OIE E E a pee een eda ee 27 Tadeo da ea iaia 29 Chapter 2 di Install the Board and Load the Device Driver this chapter Attach and Configure the Screw Terminal Panel and Signal Conditioning Backplane see Chapter 3 starting on page 31 Wire Signals see Chapter 4 starting on page 41 Verify the Operation of the Board see Chapter 5 starting on page 59 Note All DT300 Series boards are factory calibrated and require no further adjustment prior to installation If you are using the DT300 Series board and decide later to recalibrate it refer to Chapter 8 starting on page 117 for instructions 24 Installing the Board and Loading the Device Driver Unpacking Open the shipping box and remove the wrapped DT300 Series board CAUTION Keep the board in its protective antistatic bag until you are ready to install it this minimizes the likelihood of electrostatic damage Verify that the following items are present e DT300 Series data acquisition board e Data Acquisition OMNI CD If an item is missing or damaged contact Data Translation If you are in the United States call the Customer Service Department at 508 481 3700 ext 1323 An application engineer will guide you through the appropriate steps for replac
51. ant bit e FSR is the full scale range For the DT300 Series the full scale range is 10 for the unipolar range or 20 for the bipolar range Note DT321 and DT322 boards support bipolar signals only e Nis the number of bits of the A D converter For the DT301 DT302 DT303 and DT304 boards N is 12 For the DT321 and DT322 boards N is 16 e Vout is the analog voltage e Code is the raw count used by the software to represent the voltage e Offset is the actual minus full scale value Theoretically the minus full scale value is 0 0 V for the unipolar input range and 10 V for the bipolar input range However the actual minus full scale value may be slightly different than these values such as 0 01 V and or 9 99 V For greatest accuracy use the actual minus full scale value when converting codes to voltage For example assume that you are using a DT301 board with a unipolar input range The actual minus full scale value is 0 01 V If the software returns a code of 2010 for the analog input operation determine the analog input voltage as follows LSB __10 0 002441 V 4096 Vout 2010 0 002441 0 01 V Vout 4 916 V Similarly assume that you are using a DT322 board with a bipolar input range The actual minus full scale value is 9 98 V If the software returns a code of 2010 for the analog input operation determine the analog input voltage as follows LSB 20 0 000305 V 65536 Principles of Operation
52. ard 10 V 5 V 2 5 V 1 25 V for bipolar ranges or 0 to 10 V 0 to 5 V 0 to 2 5 V or 0 to 1 25 V for unipolar ranges The default is 10 V Note that the display changes to reflect the selected range for all the analog input channels on the board In the Trigger box select Auto to acquire data continuously from the specified channels or Manual to acquire a burst of data from the specified channels Click Start from the Toolbar to start the continuous analog input operation The application displays the values acquired from each channel in a unique color on the oscilloscope view Click Stop from the Toolbar to stop the operation Verifying the Operation of a DT300 Series Board Testing Single Value Digital Input To verify that the board can read a single digital input value do the following 1 o do S N Connect a digital input to digital input line 0 of port A on the DT300 Series board Refer to page 52 for an example of how to connect a digital input In the Quick DataAcq application choose Digital Input from the Acquisition menu Select the appropriate DT300 Series board from the Board list box Select digital input port A by clicking Port A Click Get The application displays the value of each digital input line in port A on the screen in both text and graphical form 65 Chapter 5 66 Testing Single Value Digital Output To verify that the board can output a single digital output value do the fol
53. ard finishes acquiring the specified number of samples stops all subsequent acquisition and transfers the acquired data to host memory all subsequent triggers or retriggers are ignored In an abrupt stop the board stops acquiring samples immediately the acquired data is not transferred to host memory but all subsequent triggers or retriggers are ignored Continuously Paced Scan Mode Use continuously paced scan mode if you want to accurately control the period between conversions of individual channels in a scan When it detects an initial trigger the board cycles through the channel list acquiring and converting the value for each entry in the channel list this process is defined as the scan The board then wraps to the start of the channel list and repeats the process continuously until either the allocated buffers are filled or until you stop the operation Refer to page 86 for more information on buffers The conversion rate is determined by the frequency of the A D sample clock refer to page 76 for more information on the A D sample clock The sample rate which is the rate at which a single entry in the channel list is sampled is determined by the frequency of the A D sample clock divided by the number of entries in the channel list To select continuously paced scan mode use software to specify the dataflow as continuous continuous pre trigger or continuous about trigger sometimes called continuous pre post trigger The init
54. areg ones sie eee A AA a E 16 Supported SOME cr a Ra 18 IONES ridad Dai A A A a ts pia 19 20 Getting Started Procedure 15 Chapter 1 16 Features The DT300 Series is a family of low cost multifunction data acquisition boards for the PCI bus The DT300 Series consists of the following boards DT301 DT302 DT303 DT304 DT321 and DT322 The different features of these boards are shown in Table 1 Table 1 Differences Among DT300 Series Boards Board Analog I O Analog Input Analog Input Analog Output Type Resolution Sample Frequency Ranges Channels DT301 12 bit 225 kHz 10 V 0to 10 V 0 DT302 12 bit 225 kHz 10 V 0to 10 V 2 DT303 12 bit 400 kHz 10 V 0to10V 0 DT304 12 bit 400 kHz 10 V 0to 10 V 2 DT321 16 bit 250 kHz 10 V 0 DT322 16 bit 250 kHz 10 V 2 a Assumes a gain of 1 Using these ranges with gains of 2 4 or 8 yields a number of effective input ranges refer to page 75 for more information All DT300 Series board share the following major features PCI bus mastering capability for analog inputs 16 single ended or pseudo differential analog input channels or 8 differential analog input channels Signal conditioning through connections to 5B and 7B Series backplanes Input gains of 1 2 4 and 8 Continuously paced and triggered scan capability A 1024 location channel gain list that supports sampling analog input channels at the same or different gains in sequential
55. artment of Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la class A prescrites dans le Reglement sur le brouillage radio lectrique dict par le Minist re des Communications du Canada Table of Contents About this Manual ooococoocconcnoco SRTR RRR ees 11 Intended Audiences cca a ad weeded 11 How This Manual is Organized 0000 eee eee eee 1 Conventions Used in this Man al area a LL 12 Related Information 26 2 2 pee dd A E Lia 12 Where Lo Get Help ia io ini ss AH 13 Chapter 1 Overview 0 cece eee 15 FG atures ii A etapa a ec cages eta gt eet ARA A a a eli 16 Supported SO Wat mela chee Si cadre oped at 18 Accessories R che A RATE ia SA a ee 19 Getting Started Procedure 0 6 eee eee es 20 Part 1 Getting Started xs e x a ao ind ee 21 Chapter 2 Installing the Board and Loading the Device Driver 23 Unpacking ta AS IRE A A aaa 25 Setting up the Computers i iii besst rra ro o A 26 Setting up an Expansion Slot 27 Loading the Device Drive ocio A Re al a 29 Windows 2 rra a AE A bade 29 Windows Vista ti SS IA Licia 29 Wind OWS Z sibile era ala 30 Chapter 3 Attaching and Configuring a Screw Terminal Panel Backplane 31 Using an STP300 Screw Terminal Panel 00 000 e eee eee eee 33 Attaching an STP300 Screw Terminal Panel 0000000000 eee eee 33 Configuring
56. axExtClockDivider 115 MaxFrequency 115 MaxMultiScanCount 110 MaxRetriggerFreq 110 MaxSingleEndedChannels 111 Measure Foundry 18 measuring frequency 99 MinExtClockDivider 115 MinFrequency 115 MinRetriggerFreq 110 Index N number of differential channels 111 gains 111 I O channels 111 resolutions 112 scans per trigger 110 single ended channels 111 voltage ranges 112 NumberOfChannels 111 NumberOfRanges 112 NumberOfResolutions 112 NumberOfSupportedGains 111 Nyquist Theorem 77 O one shot mode 103 one shot pulse output 116 online help 61 operation modes continuous digital input 93 continuously paced scan mode 78 event counting 98 frequency measurement 99 one shot pulse output 103 rate generation 101 repetitive one shot pulse output 105 single value analog input 77 single value analog output 90 single value digital I O 93 software retriggered scan mode 78 orderly stop 78 output pulses 116 output ranges 89 outputting pulses continuously 101 one shot 103 repetitive one shot 105 P PCI bus master 87 physical specifications 137 138 139 140 pin assignments DT300 Series J1 connector 142 STP300 screw terminal panel J1 connector 144 STP300 screw terminal panel J2 connector 146 STP68 panel J1 connector 147 ports 92 post trigger acquisition mode 81 109 power specifications 137 138 139 140 power supply HES14 21 19 PWR 977 19 power screw terminal assignments 45 pre trigger acquisition
57. board 2 Remove the cover plate from the selected expansion slot Retain the screw that held it in place you will use it later to install the board 27 Chapter 2 Inserting the DT300 Series Board into the Computer Once you have set up an expansion slot do the following to insert the DT300 Series board into the computer 1 Discharge any static electricity by holding the wrapped board in one hand while placing your other hand firmly on a metal portion of the computer chassis 2 Carefully remove the antistatic packing material from the board Save the original packing material in the unlikely event that your board requires servicing in the future 3 Hold the board by its edges and do not touch any of the components on the board 4 Position the board so that the cable connectors are facing the rear of the computer as shown in Figure 2 DT300 Series S T gt Rear of Computer Board a _ PCI Expansion Slot Bus Connector Figure 2 Inserting the DT300 Series Board in the Computer 5 Carefully lower the board into the PCI expansion slot using the card guide to properly align the board in the slot 6 When the bottom of the board contacts the bus connector gently press down on the board until it clicks into place CAUTION Do not force the board into place Moving the board from side to side during installation may damage the bus connector If you encounter resistance when inserting the board remove t
58. capable of continuous operation you can perform a continuous DIN operation by specifying channel 16 in the channel gain list of the A D subsystem and starting the A D subsystem 109 Chapter 7 110 Buffering Table 12 DT300 Series Buffering Options DT300 Series AID D A DIN DOUT C T QUAD Buffer Support SupportsBuffering Yes Single Buffer Wrap Mode Support SupportsWrapSingle Yes Inprocess Buffer Flush Support SupportsInProcessFlush Yes Triggered Scan Mode Table 13 DT300 Series Triggered Scan Mode Options DT300 Series AID D A DIN DOUT C T QUAD Triggered Scan Support SupportsTriggeredScan Yes Maximum Number of CGL Scans per Trigger MaxMultiScanCount 2562 0 0 0 0 0 Maximum Retrigger Frequency 155 kHz 219 kHz or MaxRetriggerFreq 165 kHz gt 0 0 0 0 0 Minimum Retrigger Frequency MinRetriggerFreq 1 2 Hz 0 0 0 0 0 a The CGL depth of 1024 entries in conjunction with a multiscan count of 256 provides an effective CGL depth of up to 256K entries b The maximum retrigger frequency depends on the board type For DT301 and DT302 boards the maximum retrigger frequency is 155 kHz For DT303 and DT304 boards the maximum retrigger frequency is 219 kHz For DT321 and DT322 boards the maximum retrigger frequency is 165 kHz The maximum retrigger frequency is based on the number of samples per trigger as follows Min Retrigger of
59. click Close Once the driver is loaded perform the steps in Chapter 3 starting on page 31 to attach and configure the screw terminal panel and signal conditioning backplane Windows Vista Once you have installed the software from the Data Acquisition OMNI CD installed a DT300 Series board and powered up the host computer the New Hardware Found dialog box appears Do the following to load the device driver in Windows Vista 1 Click Locate and install driver software recommended The popup message Windows needs your permission to continue appears 2 Click Continue The Windows Security dialog box appears 29 Chapter 2 30 8 Click Install this driver software anyway The driver files are installed Open the Control Panel Double click the Open Layers Control Panel icon Select the DT300 Series board to configure and then click Advanced By default the prompt Handles Overloaded Bus is checked If you are using an Optiplex computer or experience timing problems with your DT300 Series board uncheck this box When you are finished click Close Once the driver is loaded perform the steps in Chapter 3 starting on page 31 to attach and configure the screw terminal panel and signal conditioning backplane Windows 7 Once you have installed the software from the Data Acquisition OMNI CD installed a DT300 Series board and powered up the host computer the hardware is found automatically Perform the
60. d Television Interference This equipment has been tested and found to comply with CISPR EN55022 Class A and EN50082 1 CE requirements and also 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 interference in which case the user will be required to correct the interference at his own expense Changes or modifications to this equipment not expressly approved by Data Translation could void your authority to operate the equipment under Part 15 of the FCC Rules Note This product was verified to meet FCC requirements under test conditions that included use of shielded cables and connectors between system components It is important that you use shielded cables and connectors to reduce the possibility of causing interference to radio television and other electronic devices Canadian Department of Communications Statement This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Dep
61. des 77 current loops 50 data format 86 data transfer 87 Index differential configuration 47 49 error conditions 87 gain 75 76 input ranges 75 pseudo differential configuration 47 48 resolution 73 screw terminal assignments 44 single ended configuration 47 specifications 132 trigger acquisition modes 81 trigger sources 80 when not using the STP300 151 analog output 89 calibrating 123 channels 89 configuring the 5B01 backplane for 35 configuring the 7BP16 1 backplane 35 conversion mode 90 data format 90 gain 89 output ranges 89 resolution 89 screw terminal assignments 45 specifications 134 when not using the STP300 153 wiring 51 application wiring analog outputs 51 current loop analog inputs 50 differential analog inputs 49 digital inputs and outputs 52 event counting applications 53 externally cascaded counter timers 54 56 57 frequency measurement applications 55 pseudo differential analog inputs 48 pulse output applications 56 single ended analog inputs 47 attaching the screw terminal panel 33 B banks digital I O 92 base clock frequency 115 BaseClockFrequency 115 binary data encoding 110 bipolar signals 75 block diagram 72 157 Index 158 board specifications 137 138 139 140 buffers 110 inprocess flush 110 single wrap mode 110 bus mastering PCI 87 C C C programs 18 C T clock sources 95 cascaded C T clock 96 external C T clock 95 internal C T clock 95 cables AC1315 19 38 AC1
62. e operation When the post trigger event occurs acquisition stops Refer to page 78 for more information on software retriggered scan mode Figure 27 illustrates continuous pre trigger mode using a channel list of three entries channel 0 channel 1 and channel 2 In this example pre trigger analog input data is acquired on each clock pulse of the A D sample clock When it reaches the end of the channel list the board wraps to the beginning of the channel list and repeats this process Data is acquired continuously until the post trigger event occurs When the post trigger event occurs acquisition stops Chano Chan 2 Chan 0 Chan 2 Chan 0 Chan 1 Chan 1 A D Sample Clock Pre trigger data acquired Acquisition stops Pre trigger event occurs Post trigger event Figure 27 Continuous Pre Trigger Mode Figure 28 illustrates the same example using software retriggered scan mode The multiscan count is 2 indicating that the channel list will be scanned twice per trigger or retrigger In this example pre trigger analog input data is acquired on each clock pulse of the A D sample clock until the channel list has been scanned twice then the board waits for the software retrigger event When the software retrigger occurs the process repeats Acquisition stops when the post trigger event occurs Chano Chan2 Chan 0 Chan2 Chan 0 Chan 2 Chan 0 Chan 1 i Chan 1 __ Chan 1 su LI Ul
63. e 50 Connecting Analog Output Signals 6 6 eens 51 Connecting Digital I O Signals lt 52 Connecting Counter Timer Signals 0 0 0 ccc eee nes 53 Connecting Event Counting Signals LL 53 Connecting Frequency Measurement Signals 00000000 eee 55 Connecting Pulse Output Signals LL 56 Chapter 5 Verifying the Operation of a DT300 Series Board 59 Running the Quick DataAcq Application lt 00 61 Testing Single Value Analog Input 62 Testing Single Value Analog Output cee eens 63 Testing Continuous Analog Input rr 64 Testing Single Value Digital Input LL 65 Testing Single Value Digital Output 0 0 66 Testing Frequency Measurement 67 Testing Pulse Qu utp t A ria Le aan la eh teh tee Yes 68 Part 2 Using Your Board oir ra e 69 Chapter 6 Principles of Operation iii 71 Analog Input Features deas Na iure aaa 73 Input Resolution 0 002 etonaeacieatonr a ae oras gues ad as 73 Analog Input Channels 00000 73 Specifying a Single Channel rr 74 Specifying One or More Channels s 74 Specifying Digital Input Lines in the Analog Input Channel List 74 Input Ranges and Gains lt ER NEAR T ye aE RT TER nn RR RR 75 Specifying the Gain for a Single Channel 6 6 cece cece eee 75 Specifying the Gain for One or More Channels ooo 76 A D Sample Clock Sources irer a EA E R ERT KASR RAER N 76 Contents
64. e 97 for more information on these modes Falling edge external gate input Triggers a counter timer operation on the transition from the high level to the low level falling edge In software this is called a low edge gate type Note that this gate type is used only for one shot and repetitive one shot mode refer to page 97 for more information on these modes Rising edge external gate input Triggers a counter timer operation on the transition from the low level to the high level rising edge In software this is called a high edge gate type Note that this gate type is used only for one shot and repetitive one shot mode refer to page 97 for more information on these modes Specify the gate type in software Connect an external gate input to the board through the STP300 screw terminal panel as follows 96 For Counter 0 connect the external gate signal to screw terminal TB28 pin 39 of connector J1 For Counter 1 connect the external gate signal to screw terminal TB32 pin 5 of connector J1 For Counter 2 connect the external gate signal to screw terminal TB36 pin 38 of connector J1 Principles of Operation e For Counter 3 connect the external gate signal to screw terminal TB40 pin 4 of connector J1 Pulse Outputs The DT300 Series boards provide the following C T pulse output signals e For Counter 0 the C T output signal is screw terminal TB27 pin 40 of connector J1 e For Counter 1 the C T output signa
65. e device driver 29 wiring recommendations 43 when using your own screw terminal panel 154 wiring signals analog outputs 51 current loop analog inputs 50 differential analog inputs 49 digital inputs and outputs 52 event counting applications 53 externally cascading counter timers 54 56 57 frequency measurement applications 55 pseudo differential analog inputs 48 pulse output applications 56 single ended analog inputs 47 writing programs in C C 18 Visual Basic 18 Visual Basic NET 18 Visual C 18 Visual C 18 163 Index 164
66. e finished this procedure continue with Calibrating the Analog Output Subsystem on page 123 120 Calibration Note Calibrating the PGH Zero setting in software is no longer required the hardware calibrates this setting automatically If you are not satisfied with the analog input calibration you can load the factory default settings stored in the EEPROM by clicking Restore in the Factory Settings box Using the Manual Calibration Procedure To calibrate the analog input circuitry manually do the following 1 a S PR amp 10 11 12 13 From the main menu of the DT300 Series Calibration Utility click Configure and then Board Select the name of the DT300 Series board to configure from the combo box and then click OK From the main menu of the DT300 Series Calibration Utility click Calibrate Click A D In the Range box select Bipolar and then Zero Click the increment or decrement arrows in the Manual Adjustment box until the display reads 0 V within 0 0001 V for the DT321 and DT322 boards and within 0 0010 V for the remaining DT300 Series boards In the Range box select Bipolar and then FS for full scale Click the increment or decrement arrows in the Manual Adjustment box until the display reads 9 3750 V with the external reference within 0 0001 V for the DT321 and DT322 boards and within 0 0010 V for the remaining DT300 Series boards In the Range box select Unipolar and t
67. e results both in text and graphical form 8 Click Stop to stop a continuous pulse output operation One shot pulse output operations stop automatically 68 Part 2 Using Your Board D Principles of Operation Aralo Mpui Telini ceee ueu II E E eee n 73 Analoe Output Fear RT 89 Digital 17O eae iii ROS EEEE EEEE 92 Counter Timer Pertusa E a EAS dai 94 71 72 Chapter 6 This chapter describes the analog input analog output digital I O and counter timer features of the DT300 Series board To frame the discussions refer to the block diagram shown in Figure 24 Note that bold entries indicate signals you can access Trigger Clock Ext A D Clock Logic Ext TTL Trig p Le A D Clk A D Counter 24 bits TScan Counter CGL Reg j Ch Sel 24 bit 4K Entry Channel gt Gain Sel 20 MHz Clock CGL FIFO L Parameter be Input Sel Reg gt Discard sample Analog In 16 Channel Mux Bidirectional DIO PortB Ch Bel B lt gt 8 bit Latch 7 0 a DIO Port A Bidirectional fe 7 0 ue Gain Sell Gain Amp 8 bit Latch 1 2 4 8 4 User User Clk 3 0 y 20 MHz Counter User Gate 3 0 A D Cik ADC Clock Timers User Out 3 0 DIO Ports A y 16 bitea gt and B 3 SW CIK ___ Input Set Tristate Multiplying Analog DAC Output 1 SW_CIkO 1 kSample A Multiplyi
68. e signals to the STP300 screw terminal panel For information on how to wire signals to the 5B or 7B Series module refer to the 5B and 7B Series data sheets and user s manuals 42 Wiring Signals Before Wiring This section describes wiring recommendations and the pin assignments of the STP300 screw terminal panel Wiring Recommendations Keep the following recommendations in mind when wiring signals to the STP300 screw terminal panel e Follow standard ESD procedures when wiring signals to the board Use individually shielded twisted pair wire size 14 to 26 AWG when using the DT300 Series board in a highly noisy electrical environment e Separate power and signal lines by using physically different wiring paths or conduits e To avoid noise do not locate the STP300 screw terminal panel and cabling next to sources that produce high electro magnetic fields such as large electric motors power lines solenoids and electric arcs unless the signals are enclosed in a mumetal shield e When first installing the board we recommend that you do the following Wirea function generator or a known voltage source to analog input channel 0 use the differential configuration Wire an oscilloscope or voltage meter to analog output channel 0 Wire a digital input to digital I O Port A Wire a external clock or scope to counter timer channel 0 If you have not done so already install the DT300 Series software
69. e that you are using a DT322 board with a bipolar output range of 10 V The minus full scale value is 40 V If you want to output a voltage of 4 7 V determine the code value as follows LSB __20 0 000305 V 65536 Code 4 7 V 10 V 0 000305 V Code 48196 BC44h 91 Chapter 6 Digital I O Features This section describes the following features of the digital I O subsystem e Digital I O lines e Digital I O resolution e Digital I O operation modes Digital I O Lines DT300 Series boards support 23 digital I O lines through the digital input DIN and output DOUT subsystems DIN and DOUT subsystems use the same digital I O lines These lines are divided into the following ports e Port A lines 0 to 7 e Port B lines 0 to 7 and e Port C lines 0 to 6 You can use each port for either input or output all lines within a port have the same configuration For example if you use Port A as an input port lines 0 to 7 of Port A are configured as inputs Likewise if you use Port C as an output port lines 0 to 6 of Port C are configured as outputs For fast clocked digital input operations you can enter the digital I O lines from Ports A and B as a channel in the analog input channel list refer to page 74 for more information By default the digital I O lines power up as digital inputs On power up or reset no digital data is output from the board Digital I O Resolution For Ports A and B you can
70. e width then outputting it When the one shot operation is triggered determined by the gate input signal a pulse is output When the board detects the next trigger another pulse is output This operation continues until you stop the operation The period of the output pulse is determined by the clock input signal In repetitive one shot mode the internal C T clock source is more useful than the external C T clock source refer to page 95 for more information on the C T clock sources Using software specify the counter timer mode as repetitive one shot the clock source as internal the polarity of the output pulses high to low transitions or low to high transitions and the gate type to trigger the operation Refer to page 97 for more information on pulse output types refer to page 96 for more information on gate types Note In the case of a one shot operation the pulse width is automatically set to 100 Ensure that the signals are wired appropriately Refer to Figure 41 on page 104 for a wiring example Note Triggers that occur while the pulse is being output are not detected by the board Figure 43 shows an example of a repetitive one shot operation using an external gate rising edge a clock output frequency of 1 kHz pulse period of 1 ms and a low to high pulse type Repetitive One Shot Operation Starts External Gate Signal i 1 ms period gt 1 ms
71. e with a DT300 Series board Attaching an STP300 Screw Terminal Panel To attach an STP300 screw terminal panel to the DT300 Series board you need the EP305 or equivalent cable The STP300 screw terminal panel and the EP305 cable are offered by Data Translation as accessories to the DT300 Series boards Connector J1 on the STP300 attaches to connector J1 on the DT300 Series board Connector J2 on the STP300 connects to a 5B or 7B Series signal conditioning backplane Figure 3 illustrates how to attach the STP300 screw terminal panel to a DT300 Series board Connector J1 DT300 Series EP305 Cable STP300 Screw Board Ji Terminal Panel Figure 3 Attaching the STP300 Screw Terminal Panel to a DT300 Series Board Once you have attached the STP300 screw terminal panel to the board configure the screw terminal panel as described in the next section Configuring an STP300 Screw Terminal Panel Figure 4 shows the layout of the STP300 screw terminal panel 33 Chapter 3 O J1 68 Pin Connector AE e Counter Timers Spare R8 to R1 32 GC 6 9 6 25 Jumpers Counter Timers Bieta Re 40 990909090909 3 Clk amp Trig Pwr Gnd 5 V 8 600000096 1 48 Ad ESENES TACS 41 TE I Analog Inputs 16 0090906099 5 00909
72. e you have finished this procedure the analog output circuitry is calibrated To close the Calibration Utility click the close box in the upper right corner of the window 123 Chapter 8 124 General Checklist 000000 Technical Support If Your Board Needs Factory Service Troubleshooting 125 Chapter 9 General Checklist Should you experience problems using a DT300 Series board follow these steps 1 Read all the documentation provided for your product Make sure that you have added any Read This First information to your manual and that you have used this information Check the OMNI CD for any README files and ensure that you have used the latest installation and configuration information available Check that your system meets the requirements stated in the README file on the OMNI CD Check that you have installed your hardware properly using the instructions in Chapter 2 Check that you have loaded the device driver properly using the instructions in Chapter 2 Search the DT Knowledgebase in the Support section of the Data Translation web site at www datatranslation com for an answer to your problem If you still experience problems try using the information in Table Table 24 to isolate and solve the problem If you cannot identify the problem refer to page 128 Table 24 Troubleshooting Problems Symptom Possible Cause Possible Solution Board does not r
73. ed calibration method The following sections describe how to configure for calibration using either of the supported references and how to calibrate the analog input circuitry automatically and manually Configuring for an External Reference To calibrate the analog input circuitry using an external 9 3750 V reference do the following 1 2 3 4 Connect Analog In 0 TB1 to the positive side of the precision voltage source Connect Analog In 0 Return TB2 to the negative side of the precision voltage source Connect Analog In 0 Return TB2 to Analog Ground TB18 Connect Analog In 1 TB3 to Analog In 1 Return TB4 and to Analog Ground TB18 To calibrate the analog input circuitry automatically continue on page 120 to calibrate the analog input circuitry manually continue on page 121 Using the Auto Calibration Procedure To calibrate the analog input subsystem automatically do the following 1 5 From the main menu of the DT300 Series Calibration Utility click Configure and then Board Select the name of the DT300 Series board to configure from the combo box and then click OK From the main menu of the DT300 Series Calibration Utility click Calibrate and then AID In the Auto Calibration box click Go The bipolar zero and full scale and unipolar zero and full scale ranges are automatically calibrated Click Quit when you are finished calibrating the analog input circuitry Once you hav
74. er also called the multiscan count e The retrigger frequency The initial trigger source depends on the trigger acquisition mode you use refer to page 80 for more information on the supported and trigger sources and trigger acquisition modes 79 Chapter 6 80 Externally Retriggered Scan Mode Use externally retriggered scan mode if you want to accurately control the period between conversions of individual channels and retrigger the scan based on an external event Like software retriggered scan mode this mode allows you to acquire 262 144 samples per trigger 256 times per trigger x 1024 location channel list Note Use externally retriggered scan mode with continuous post trigger acquisitions only refer to page 81 for more information on post trigger acquisitions When a DT300 Series board detects an initial trigger post trigger source only the board scans the channel list up to 256 times then waits for an external retrigger to occur You can specify any supported post trigger source as the initial trigger Specify the external positive digital TTL trigger for the retrigger When the retrigger occurs the board scans the channel list the specified number of times then waits for another external retrigger to occur The process repeats continuously until either the allocated buffers are filled or until you stop the operation refer to page 86 for more information on buffers The conversion rate of each channel is dete
75. ermine the frequency of the clock input signal using the following equation Frequency Measurement Number of Events Measurement Period Principles of Operation Figure 37 shows an example of performing a frequency measurement operation In this example three events are counted during a duration of 300 ms The frequency then is 10 Hz since 10 Hz 3 3 s 3 Events Counted External C T Clock Input Signal i Duration over which the frequency is measured 300 ms frequency measurement frequency starts measurement stops Figure 37 Example of Frequency Measurement Rate Generation Use rate generation mode to generate a continuous pulse output signal from the counter this mode is sometimes referred to as continuous pulse output or pulse train output You can use this pulse output signal as an external clock to pace other operations such as analog input or other counter timer operations While the pulse output operation is enabled determined by the gate input signal the counter outputs a pulse of the specified type and frequency continuously As soon as the operation is disabled rate generation stops The period of the output pulse is determined by the clock input signal and external clock divider If you are using one counter not cascaded you can output pulses using a maximum frequency of 10 MHz In rate generation mode either the internal or external C T clock input source is appropria
76. ernally connecting two counters together Using software specify internal cascade mode then specify the clock input and gate input for the first counter in the cascaded pair The clock output signal from first counter is the clock input signal of the second counter For example if counters 1 and 2 are cascaded specify the clock input and gate input for counter 1 The rising edge of the clock input signal is active Gate Types The active edge or level of the gate input to the counter enables counter timer operations The operation starts when the clock input signal is received The DT300 Series board provides the following gate input types None A software command enables any specified counter timer operation immediately after execution This gate type is useful for all counter timer modes Logic low level external gate input Enables a counter timer operation when the external gate signal is low and disables the counter timer operation when the external gate signal is high Note that this gate type is used only for event counting frequency measurement and rate generation refer to page 97 for more information on these modes Logic high level external gate input Enables a counter timer operation when the external gate signal is high and disables a counter timer operation when the external gate signal is low Note that this gate type is used only for event counting frequency measurement and rate generation refer to pag
77. esistors R1 to R8 36 resistors R9 to R16 36 SDK 18 selecting an expansion slot 27 service and support procedure 128 setting up the computer 26 signal conditioning backplanes 5B01 19 5B08 19 7BP04 1 19 7BP08 1 19 7BP16 1 19 single buffer wrap mode 110 single ended channels 111 number of 111 single ended inputs 47 151 single value operations 109 analog input 77 digital I O 93 size board 137 screw terminal panel 139 slot selection 27 software packages 18 software supported 18 software trigger 80 114 software retriggered scan mode 78 specifications 131 analog input 132 analog output 134 counter timer 136 digital I O 135 environmental 137 138 139 140 physical 137 138 139 140 power 137 138 139 140 specifying a single channel analog input 74 digital I O 92 specifying one or more channels analog input 74 digital I O 74 stopping an operation analog input 78 STP300 screw terminal panel 19 STP68 screw terminal panel 19 STP68 DIN screw terminal panel 19 subsystem descriptions A D 73 C T 94 D A 89 DIN and DOUT 92 SupportedGains 111 SupportedResolutions 112 SupportedVoltageRanges 112 SupportsBinaryEncoding 110 SupportsBuffering 110 SupportsCascading 116 SupportsChannelListInhibit 111 SupportsContinuous 109 SupportsContinuousPrePostTrigger 109 SupportsContinuousPreTrigger 109 SupportsCount 116 SupportsDifferential 111 SupportsExternalClock 115 SupportsGateHighEdge 116 SupportsGateHighLevel 116 Sup
78. espond Intermittent operation The board configuration is incorrect Check the configuration of your device driver to ensure that the board name and type are correct The board is incorrectly aligned in a PCI expansion slot The board is damaged Loose connections or vibrations exist Check that the slot in which your DT300 Series board is located is a PCI slot and that the board is correctly seated in the slot Contact Data Translation for technical support refer to page 128 Check your wiring and tighten any loose connections or cushion vibration sources The board is overheating Check environmental and ambient temperature consult the board s specifications on page 137 of this manual and the documentation provided by your computer manufacturer for more information Electrical noise exists Check your wiring and either provide better shielding or reroute unshielded wiring Data appears to be invalid An open connection exists Check your wiring and fix any open connections A transducer is not connected to the channel being read Check the transducer connections The board is set up for differential inputs while the transducers are wired as single ended inputs or vice versa Check your wiring and ensure that what you specify in software matches your hardware configuration 126 Troubleshooting Table 24 Troubleshooting Problems cont
79. g input channels are available Note We recommend that you connect all unused analog input channels to analog ground This section describes how to connect single ended pseudo differential and differential voltage inputs as well as current loop inputs to the STP300 screw terminal panel Connecting Single Ended Voltage Inputs Figure 8 shows how to connect single ended voltage inputs channels 0 1 and 8 in this case to the STP300 screw terminal panel 47 Chapter 4 Signal STP300 Panel Jumper W1 Source 1817 Bia j i i TB18 Vsource 0 Analog In 0 QD TBI wi Analog In 8 a TB2 O ll N B Analog In 1 Q TB3 O Vsource 8 D D OD O O D Vsource 1 D D Analog Ground Figure 8 Connecting Single Ended Voltage Inputs Shown for Channels 0 1 and 8 Connecting Pseudo Differential Voltage Inputs Figure 9 shows how to connect pseudo differential voltage inputs channels 0 1 and 8 in this case to the STP300 screw terminal panel Signal Source Vsource 0 q TB17 Analog In 0 Q TBI 2 TB18 Analog In 8 JO STP300 Analog In 1 QO TB3 Panel Vsource 8 Vsource 1 T 2805056 Remove Jumper W1 to use Amp Low as a remote ground sense C 7 Analog Ground He Make this connection as close to V y sources as possible t
80. ge 40 V maximum protection A D converter noise 0 3 LSB rms Amplifier input noise 20 uV rms 20 uV rms 15 uV rms 10 uV rms gain 100 pA rms current Specifications Table 25 A D Subsystem Specifications cont DT301 302 DT303 304 DT321 322 Feature Specifications Specifications Specifications Channel to channel offset 40 0 uV Channel acquisition time 3 us 1 us 1 us A D conversion time 4 4 us 2 5 us 4 us Effective number of bits 11 5 bits 11 5 bits 13 5 bits ENOB Total Harmonic Distortion 80 dB typical 80 dB typical 90 dB typical Channel crosstalk 80 dB 1 kHz Data throughput Single analog channel Multiple channels scan Single digital channel 400 kSamples s 0 03 accuracy 250 kSamples s 0 01 accuracy 225 kSamples s 0 03 accuracy 400 kSamples s 0 05 accuracy 250 kSamples s 0 03 accuracy 225 kSamples s 0 05 accuracy 200 kSamples s 03 accuracy 360 kSamples s 03 accuracy 150 kSamples s 01 accuracy 3 MSamples s 3 MSamples s 3 MSamples s External A D sample clock Input type Input load High level input voltage Low level input voltage Hysteresis High level input current Low level input current Minimum pulse width Maximum frequency Termination Schmitt trigger falling edge sensitive 1 HCT14 TTL 2 0 V minimum 0 8 V maximum 0 4 V minimum 1 5 V maximum 1 0 A 1 0
81. gh speed clock to the STP300 we recommend that you connect the return to the adjacent ground screw terminal Wiring Signals Connecting Analog Input Signals The STP300 screw terminal panel supports both voltage and current loop inputs You can connect analog input voltage signals to the STP300 in the following configurations e Single ended Choose this configuration when you want to measure high level signals when noise is not significant when the source of the input is close to the STP300 screw terminal panel and when all the input signals are referred to the same common ground When you choose the single ended configuration all 16 analog input channels are available e Pseudo Differential Choose this configuration when noise or common mode voltage the difference between the ground potentials of the signal source and the ground of the STP300 screw terminal panel or between the grounds of other signals exists and the differential configuration is not suitable for your application This option provides less noise rejection than the differential configuration however all 16 analog input channels are available e Differential Choose this configuration when you want to measure low level signals less than 1 V when you are using an A D converter with high resolution gt 12 bits when noise is a significant part of the signal or when common mode voltage exists When you choose the differential configuration eight analo
82. gure 7 Connecting the 7B Series Backplane to the STP300 Once you have attached the 7B Series signal conditioning backplane to the STP300 screw terminal panel configure the backplane as described in the next section Considerations When Using 5B or 7B Series Accessories When using the STP300 screw terminal panel with 5B or 7B Series signal conditioning accessories keep the following considerations in mind e Configure your DT300 Series board to use single ended mode pseudo differential inputs You must remove jumper W1 on the STP300 as described on page 35 If you are using a 5B Series backplane you must also install jumper W3 on the 5B Series backplane to connect Amp Low to Analog Ground e The 5B08 and 7BP08 1 map to single ended analog input channels 0 to 7 and the 7BP04 1 maps to single ended analog input channels 0 to 3 If you are using a signal conditioning module for an analog input channel ensure that you connect the analog input signal to the module on the signal conditioning backplane For channels that do not use signal conditioning connect the analog input signals to the STP300 screw terminal panel e By default the 5B01 and 7BP16 1 backplanes map to single ended analog input channels 0 to 15 However by configuring jumpers W4 to W7 on the STP300 as described on page 35 you can use channels 14 and 15 on the 5B01 or 7BP16 1 backplane as analog output channels 0 and 1 Note You cannot use analog output modules on t
83. he 5B08 7BP08 1 or 7BP04 1 backplane e 5B and 7B thermocouple modules provide their own CJC and return a voltage that already compensates for CJC Therefore when using 5B and 7B Series thermocouple modules you do not have to compensate for offsets e The output of many 5B modules is 5 V The output of many 7B modules is 0 to 10 V Ensure that you select an input range that matches the output of the 5B or 7B modules that you are using For example if you are using 5B modules that have an output of 5 V use a bipolar input range and a gain of 2 on the DT300 Series board 39 Chapter 3 40 e Connect all unused inputs to analog common Reading an open channel can cause settling problems on the next valid channel e Refer to the user s manuals and data sheets for the 5B and 7B Series for more information Y Wiring Signals A 43 Connecting Analog Input Sienals ir keniana a e AE a a 47 Connecting Analog Output Denmas oo rs a 51 Connecting Digital O Signals o A ina 52 Connecting Counters Timer signals ii i ila 53 41 Chapter 4 Install the Board and Load the Device t Driver see Chapter 2 starting on page 23 e Attach and Configure a Screw Terminal Panel and Signal Conditioning Backplane see Chapter 3 starting on page 31 Wire Signals this chapter C Verify the Operation of the Board S see Chapter 5 starting on page 59 This chapter describes how to wir
84. he board and the device driver should they occur Appendix A Specifications lists the specifications of the board Appendix B Connector Pin Assignments shows the pin assignments for the connectors on the board and for the STP300 screw termination panel Appendix C Using Your Own Screw Terminal Panel describes additional considerations to keep in mind when designing your own screw terminal panel for use with a DT300 Series board An index completes this manual Conventions Used in this Manual The following conventions are used in this manual e Notes provide useful information or information that requires special emphasis cautions provide information to help you avoid losing data or damaging your equipment and warnings provide information to help you avoid catastrophic damage to yourself or your equipment e Items that you select or type are shown in bold Related Information 12 Refer to the following documents for more information on using the DT300 Series board e Measure Foundry Manual UM 19298 and online help These documents describe how to use Measure Foundry to build drag and drop test and measurement applications for Data Translation data acquisition boards DT Open Layers for NET User s Manual UM 22161 For programmers who are developing their own application programs using Visual C or Visual Basic NET this manual describes how to use the DT Open Layers for NET Class Library
85. he board and try again 7 Secure the board in place at the rear panel of the system unit using the screw removed from the slot cover 8 Power up the computer If you installed the DT300 Series software the DT300 Series device driver is loaded automatically If you have not installed the software do so now 28 Installing the Board and Loading the Device Driver Loading the Device Driver To load the DT300 Series device driver in e Windows XP follow the steps on page 29 e Windows Vista follow the steps on page 29 e Windows 7 follow the steps on page 30 Windows XP Once you have installed the software from the Data Acquisition OMNI CD installed a DT300 Series board and powered up the host computer the New Hardware Found dialog box appears Do the following to load the device driver in Windows XP 1 Click Next 2 Click Search for a suitable driver for my device recommended 3 Click Specify a location and click Next 4 Browse to Windows Inf DT300 Inf and then click Open 5 Click OK 6 Click Next The files are copied 7 Click Finish 8 Open the Control Panel 9 Double click the Open Layers Control Panel icon 10 Select the DT300 Series board to configure and then click Advanced By default the prompt Handles Overloaded Bus is checked 11 If you are using an Optiplex computer or experience timing problems with your DT300 Series board uncheck this box 12 When you are finished
86. hen Zero Click the increment or decrement arrows in the Manual Adjustment box until the display reads 0 V within 0 0001 V for the DT321 and DT322 boards and within 0 0010 V for the remaining DT300 Series boards In the Range box select Unipolar and then FS for full scale Click the increment or decrement arrows in the Manual Adjustment box until the display reads 9 3750 V with the external reference within 0 0001 V for the DT321 and DT322 boards and within 0 0010 V for the remaining DT300 Series boards Click Quit when you are finished calibrating the analog input circuitry Once you have finished this procedure continue with Calibrating the Analog Output Subsystem on page 123 121 Chapter 8 Note Calibrating the PGH Zero setting in software is no longer required the hardware calibrates this setting automatically If you are not satisfied with the analog input calibration you can load the factory default settings stored in the EEPROM by clicking Restore in the Factory Settings box 122 Calibration Calibrating the Analog Output Subsystem To calibrate the analog output circuitry use an external precision meter The following sections describe how to configure for calibration using the supported meters and how to calibrate the analog output circuitry Configuring for an External Meter To calibrate DACO using an external voltage meter do the following 1 Connect Analog Out 0 TB19 to the po
87. his mode enter all 16 digital input lines of Ports A and B as channel 16 of the analog input channel list program this mode through the A D subsystem Using this mode you can specify a clock source scan mode trigger source and buffer for the digital input operation Refer to page 74 for more information on specifying digital input lines for a continuous digital input operation 93 Chapter 6 Counter Timer Features 94 The counter timer circuitry on the board provides the clocking circuitry used by the A D subsystem as well as several user counter timer features This section describes the following user counter timer features e Counter timer channels e C T clock sources e Gate types e Pulse types and duty cycles e Counter timer operation modes Counter Timer Channels The DT300 Series board supports four user 16 bit counter timer channels called counters counters are numbered 0 1 2 and 3 Each counter accepts a clock input signal and gate input signal and outputs a clock output signal also called a pulse output signal as shown in Figure 31 Clock Input Signal internal external or Ly Counter gt Pulse Output Signal internally cascaded Gate Input Signal software or external input Figure 31 Counter Timer Channel Each counter corresponds to a counter timer C T subsystem To specify the counter to use in software specify the appropriate C T
88. ial trigger source depends on the trigger acquisition mode you use Refer to page 80 for more information on the supported trigger sources and trigger acquisition modes Triggered Scan Mode DT300 Series boards support two triggered scan modes software retriggered and externally retriggered These modes are described in the following subsections Software Retriggered Scan Mode Use software retriggered scan mode if you want to accurately control both the period between conversions of individual channels in a scan and the period between each scan This mode is useful when synchronizing or controlling external equipment or when acquiring a buffer of data on each trigger or retrigger Using this mode you can acquire up to 262 144 samples per trigger 256 times per trigger x 1024 location channel list When it detects an initial trigger the DT300 Series board scans the channel list a specified number of times up to 256 then waits for an software retrigger to occur When it detects the software retrigger the board scans the channel list the specified number of times then waits for another software retrigger to occur The process repeats continuously until either the allocated buffers are filled or until you stop the operation refer to page 86 for more information on buffers Principles of Operation The sample rate is determined by the frequency of the A D sample clock divided by the number of entries in the channel list refer to page
89. ing Use event counting mode to count events from the counter s associated clock input source If you are using one counter the board can count a maximum of 65 536 events before the counter rolls over to 0 and starts counting again If you are using a cascaded 32 bit counter the board can count a maximum of 4 294 967 296 events before the counter rolls over to 0 and starts counting again In event counting mode use an external C T clock source refer to page 95 for more information on the external C T clock source Using software specify the counter timer mode as event counting count the clock source as external and the gate type that enables the operation Refer to page 96 for more information on gate types Ensure that the signals are wired appropriately Figure 33 shows one example of connecting an event counting application to the STP300 screw terminal panel using user counter 0 In this example rising clock edges are counted while the gate is active Digital Ground 1B25 TB26 User Clock Input 0 a q TB28 Signal Source Gate 0 TB29 n O O 7 STP300 aa Panel External i Gating Switch L Digital Ground An internal 33 ohm series resistor is used Figure 33 Connecting Event Counting Signals Shown for Clock Input 0 and External Gate 0 98 Principles of Operation Figure 34 shows an example of performing an event
90. ing missing or damaged items If you are located outside the United States call your local distributor listed on Data Translation s web site www datatranslation com 25 Chapter 2 26 Setting up the Computer CAUTION To prevent electrostatic damage that can occur when handling electronic equipment use a ground strap or similar device when performing this installation procedure To set up the computer do the following 1 Nn Pp ON Install the software from the Data Acquisition OMNI CD or Data Translation web site Note If you are using Windows 7 you must install the device driver before installing the board in the computer Turn off the computer Turn off all peripherals printer modem monitor and so on connected to the computer Unplug the computer and all peripherals Remove the cover from you computer Refer to your computer s user manual for instructions Installing the Board and Loading the Device Driver Setting up an Expansion Slot Once you have set up the computer set up an expansion slot by doing the following 1 Select a 32 bit or 64 bit PCI expansion slot PCI slots are shorter than ISA or EISA slots and are usually white or ivory Commonly three PCI slots one of which may be a shared ISA PCI slot are available If an ISA board exists in the shared slot you cannot use the slot for a PCI board if a PCI board exists in the shared slot you cannot use the slot for an ISA
91. inuous C T 109 continuous digital input 109 continuous digital input operations 93 continuous post trigger 109 continuous pre trigger 109 single value 109 data format analog input 86 analog output 90 data transfer 87 DataAcq SDK 18 DC300 backshell connector kit 19 description of the functional subsystems A D 73 C T 94 D A 89 DIN and DOUT 92 device driver 18 differential channels 111 differential inputs 47 152 digital I O 92 lines 92 operation modes 93 resolution 92 screw terminal assignments 45 specifications 135 specifying digital inputs in analog input channel list 74 when not using the STP300 154 155 wiring 52 digital trigger 81 DIN subsystem 92 specifications 135 DOUT subsystem 92 specifications 135 DT300 Series Device Driver 18 DT Open Layers for NET Class Library 18 DTx EZ 18 duty cycle 97 E edge gate type high 96 low 96 encoding data analog input 86 analog output 90 environmental specifications 137 138 139 140 EP305 cable 19 33 errors analog input 87 event counting 53 98 116 expansion slot selection 27 external clock 115 A D sample 77 C T 95 external clock divider maximum 115 minimum 115 external digital trigger 81 negative 114 positive 114 externally retriggered scan mode 80 F factory service 129 falling edge gate type 96 features 16 159 Index 160 formatting data analog input 86 analog output 90 frequency base clock 115 external A D sample clock 77 external C
92. ist with three entries channel 0 channel 1 and channel 2 Triggered scan mode is disabled In this example post trigger analog input data is acquired on each clock pulse of the A D sample clock When it reaches the end of the channel list the board wraps to the beginning of the channel list and repeats this process Data is acquired continuously continuously paced scan mode Chano Chan 2 Chan0 Chan2 ChanO Chan2 ChanO Chan2 I Chan 1 Chan 1 Chan 1 Chani A D Sample Clock Post trigger data acquired Post trigger event continuously Figure 25 Continuous Post Trigger Mode without Triggered Scan 81 Chapter 6 82 Figure 26 illustrates the same example using triggered scan mode either internally or externally retriggered The multiscan count is 2 indicating that the channel list will be scanned twice per trigger or retrigger In this example post trigger analog input data is acquired on each clock pulse of the A D sample clock until the channel list has been scanned twice then the board waits for the retrigger event When the retrigger event occurs the board scans the channel list twice more acquiring data on each pulse of the A D sample clock The process repeats continuously with every specified retrigger event Chano Chan 2 Chan 0 Chan 2 Chan 0 Chan 2 Chan 0 Chan 2 Chan 1 Chan 1 Chan 1 Chant A D R fe Sample Clock
93. ith the internal C T clock or if you want to pace at uneven intervals The rising edge of the external C T clock input signal is the active edge Using software specify the clock source as external and the clock divider used to determine the frequency at which to pace the operation this is the frequency of the clock output signal The minimum clock divider that you can specify is 2 0 the maximum clock divider that you can specify is 65535 For example if you supply an external C T clock with a frequency of 5 MHz and specify a clock divider of 5 the resulting frequency of the external C T clock output signal is 1 MHz The resulting frequency of the external C T clock output signal must not exceed 2 5 MHz Connect the external C T clock source to the board through the STP300 screw terminal panel as follows e For Counter 0 connect the external C T clock signal to screw terminal TB26 pin 41 of connector J1 e For Counter 1 connect the external C T clock signal to screw terminal TB30 pin 7 of connector J1 e For Counter 2 connect the external C T clock signal to screw terminal TB34 pin 36 of connector J1 e For Counter 3 connect the external C T clock signal to screw terminal TB38 pin 2 of connector J1 95 Chapter 6 Internally Cascaded Clock The DT300 Series board supports internal cascading on counters 0 and 1 1 and 2 and 2 and 3 Cascading counters internally is an effective way to create a 32 bit counter without ext
94. l is screw terminal TB31 pin 6 of connector J1 e For Counter 2 the C T output signal is screw terminal TB35 pin 37 of connector J1 e For Counter 3 the external C T output signal is screw terminal TB39 pin 3 of connector J1 The DT300 Series board supports the following pulse output types on the clock output signal e High to low transitions The low portion of the total pulse output period is the active portion of the counter timer clock output signal e Low to high transitions The high portion of the total pulse output period is the active portion of the counter timer pulse output signal Using software you can specify the duty cycle of the pulse The duty cycle or pulse width indicates the percentage of the total pulse output period that is active A duty cycle of 50 then indicates that half of the total pulse is low and half of the total pulse output is high Figure 32 illustrates a low to high pulse with a duty cycle of approximately 30 Active Pulse Width gt high pulse a low pulse E Total Pulse Period Figure 32 Example of a Low to High Pulse Output Type Counter Timer Operation Modes The DT300 Series board supports the following counter timer operation modes e Event counting e Frequency measurement e Rate generation e One shot e Repetitive one shot 97 Chapter 6 Refer to the following subsections for more information on these operation modes Event Count
95. lowing 1 Nn oF P P Connect a digital output to digital output line 0 of port B on the DT300 Series board Refer to page 52 for an example of how to connect a digital output In the Quick DataAcq application choose Digital Output from the Control menu Select the appropriate DT300 Series board from the Board list box Select digital output port B by clicking Port B Click the appropriate bits to select the digital output lines to write to If the bit is selected a high level signal is output to the digital output line if the bit is not selected a low level signal is output to the digital output line Optionally you can enter an output value in the Hex text box Click Send The application displays the value of each digital output line of digital port B on the screen in both text and graphical form Verifying the Operation of a DT300 Series Board Testing Frequency Measurement To verify that the board can perform a frequency measurement operation do the following 1 Wire an external clock source to counter timer 0 on the DT300 Series board Reter to page 55 for an example of how to connect a an external clock for a frequency measurement operation Note The Quick DataAcq application works only with counter timer 0 In the Quick DataAcq application choose Frequency Counter from the Acquisition menu Select the appropriate DT300 Series board from the Board list box In the Count Duration text box
96. mode 82 109 pseudo differential inputs 47 151 pulse output duty cycle 97 one shot 103 rate generation 101 repetitive one shot 105 signals 94 97 types 97 pulse train output 101 pulse width 97 PWR 977 power supply 19 Q Quick DataAcq 18 continuous analog input operations 64 frequency measurement operations 67 pulse output operations 68 running 61 single value analog input operations 62 single value analog output operations 63 single value digital input operations 65 single value digital output operations 66 quickDAQ 18 R ranges analog input 75 analog output 89 number of 112 rate generation 116 repetitive one shot mode 105 repetitive one shot pulse output 116 resistors R1 to R8 36 resistors R9 to R16 36 resolution analog input 73 analog output 89 availalble 112 digital I O 92 number of 112 programmable 112 retrigger 80 retrigger clock 79 161 Index 162 retrigger clock frequency 110 retrigger frequency 79 retriggered scan mode externally 80 software 78 returning boards to the factory 129 rising edge gate type 96 RMA 129 running the Quick DataAcq application 61 S sample clock external A D 77 internal A D 76 sample rate 78 scan mode externally retriggered 80 software retriggered 78 screw terminal panel 19 33 analog input assignments 44 analog output assignments 45 counter timer assignments 45 digital I O assignments 45 jumper W1 35 jumpers W4 to W7 35 layout 34 power 45 r
97. nel 0 In the Range list box select the output range of DACO The default is 10 V Enter an output value or use the slider to select a value to output from DACO Click Send to output a single value from DACO The application displays the output value on the screen in both text and graphical form 63 Chapter 5 64 Testing Continuous Analog Input To verify that the board can perform a continuous analog input operation do the following 1 10 11 Connect known voltage sources such as the outputs of a function generator to analog input channels 0 and 1 on the DT300 Series board using the differential configuration Refer to page 49 for an example of how to connect a differential analog input In the Quick DataAcq application choose Scope from the Acquisition menu Select the appropriate DT300 Series board from the Board list box In the Sec Div list box select the number of seconds per division 1 to 00001 for the display In the Channels list box select analog input channel 1 and then click Add to add the channel to the channel list Channel 0 is automatically added to the channel list From the Config menu choose ChannelType and then select Differential From the Config menu select Range and then select Bipolar or Unipolar depending on the configuration of your board The default is Bipolar From the Scope view double click the input range of the channel to change the input range of the bo
98. ng Analog Input FIFO DAC Output 0 PCI Bus Interface Sie PO ESSE B gt DACs not included on DT301 PCI Bus DT303 or DT321 boards Figure 24 Block Diagram of the DT300 Series Boards Principles of Operation Analog Input Features This section describes the features of the analog input A D subsystem including the following e Input resolution e Analog input channels e Input ranges and gains e A D sample clock sources e Analog input conversion modes e Trigger sources and trigger acquisition modes e Data formats and transfer e Error conditions Input Resolution Table 5 lists the input resolutions supported by the DT300 Series boards The resolution is fixed for each board type therefore it cannot be programmed in software Table 5 Supported Analog Input Resolutions Board Type Supported Resolution DT301 12 bits DT302 12 bits DT303 12 bits DT304 12 bits DT321 16 bits DT322 16 bits Analog Input Channels The DT300 Series board supports 16 single ended or pseudo differential analog input channels or 8 differential analog input channels on board Refer to Chapter 4 starting on page 41 for a description of how to wire these signals You configure the channel type through software Note For pseudo differential inputs specify single ended in software in this case how you wire these signals determines the configuration 73 Chapter 6 74 The
99. nput 0 and External Gate 0 User Counter Output 1 55 Chapter 4 Connecting Pulse Output Signals Figure 21 shows one example of connecting pulse output signals to the STP300 screw terminal panel using user counter 0 STP300 Panel Digital Ground 4 TB25 UD TB27 TB28 Heater D Controller DIA User Counter Output 0 O p D LU i External o A Gate 0 Gating Switch O Digital Ground Figure 21 Connecting Pulse Output Signals Shown for Counter Output 0 and Gate 0 Figure 22 shows an example of how to externally cascade two counters to perform a rate generation operation using user counters 0 and 1 Note that you can also cascade counters internally using software if you internally cascade the counters you do not need to make the external cascading connections In this example counter 1 gate is logic high 56 Wiring Signals STP300 Panel Digital Ground User D TB25 c TB26 ounter D TB27 Output 0 D q TB28 ignal dd dai User Clock Input 0 D TB29 lt 2 TB30 User Clock Input 1 LY O External E Gating Switch Gate 0 R No Digital Ground Figure 22 Cascading Counters Shown for Rate Generation Using Counters 0 and 1 and External Gate 0 Figure 23 shows an example of how to cascade two counters externally to perform a one shot ope
100. nput 10 2 Return 66 66 Analog Input 2 67 67 Analog Input 8 0 Return 68 68 Analog Input 0 148 Using Your Own Screw Terminal Panel Analog OPU a 0 Tee ela aga noe RTE TER SHEET e Ra RER ATE Te 151 Analog TTT 153 Digital Inputs and Counter Timer Inputs oooooomerooooooocrcrorasr 0 0 154 ELS IEO T O AT A ana 155 149 Appendix C 150 Data acquisition boards can perform only as well as the input connections and signal integrity you provide If you choose not to use the STP300 screw terminal panel consideration must be given to how the signals interact in the real world as well as how they interact with each other This appendix describes additional considerations to keep in mind when designing your own screw terminal panel for use with a DT300 Series board Refer to Appendix B for connector and cable specifications Using Your Own Screw Terminal Panel Analog Inputs DT300 Series boards have three different types of analog input configurations that you can use e Single ended e Pseudo differential e Differential Single Ended Inputs With single ended inputs you have the maximum number of inputs but have the worst case noise immunity without external signal conditioning The major problem with this configuration it that you need a common ground between the external inputs and the data acquisition board Even with conditioning consideration must be given to the cable length and how
101. nternalClock Yes Yes Yes External Clock Support SupportsExternalClock Yes Yes Simultaneous Input Output on a Single Clock Signal SupportsSimultaneousClocking Base Clock Frequency BaseClockFrequency 20 MHz 0 0 0 20 MHz Maximum Clock Divider MaxExtClockDivider 1 0 1 0 1 0 1 0 65536 Minimum Clock Divider MinExtClockDivider 1 0 1 0 1 0 1 0 2 0 Maximum Frequency MaxFrequency 3 MHz 1 0Hz O 0 10 MHz Minimum Frequency MinFrequency 1 2Hz 1 0Hz 0 0 0 005 Hz a For DT301 and DT302 boards the maximum throughput for analog input channels is 225 kHz for DT303 and DT304 boards the maximum throughput for analog input channels is 400 kHz for DT321 and DT322 boards the maximum throughput for analog input channels is 250 kHz For all boards if the channel gain list contains channel 16 only the digital input channel the maximum throughput is 3 MHz b If using cascaded counter timers this value is 5 MHz c Any two adjacent counter timers such as 1 2 or 2 3 or 3 4 can be cascaded If you are not using cascaded counter timers this value is approximately 305 18 Hz 115 Chapter 7 Counter Timers 116 Table 23 DT300 Series Counter Timer Options DT300 Series Cascading Support SupportsCascading Event Count Mode Support SupportsCount A D D A DIN DOUT C T Yes Yes QUAD Generate Rate Mode Support SupportsRateGenerate Yes
102. o reduce ground loop errors Vem is the common mode voltage for all 16 analog inputs Figure 9 Connecting Pseudo Differential Voltage Inputs Shown for Channels 0 1 and 8 48 Wiring Signals Connecting Differential Voltage Inputs Figure 10A illustrates how to connect a floating signal source to the STP300 screw terminal panel using differential inputs A floating signal source is a voltage source that has no connection with earth ground You need to provide a bias return path by adding resistors R1 to R8 for channels 0 to 7 respectively for floating signal sources If the input signal is 10 V then the common mode voltage could be 1 V Theoretically the resistor value Rp should be 1 V divided by the input bias current 20 nA or 50 MQ However when you add noise from external sources to the high impedance a resistor value of 100 Q to 100 kQis more practical In Figure 10B the signal source itself provides the bias return path therefore you do not need to use bias return resistors R is the signal source resistance while R is the resistance required to balance the bridge Note that the negative side of the bridge supply must be returned to analog ground STP300 Panel A Analog In 0 TBI Q 9 J TB2 TB18 Floating we D O Signal Rs D D Source lt Analog In 0 D D S Return O O 0 O R1 D O Analog Ground You can
103. ocated in the connector next to the clock must be connected as a twisted pair with the high speed clock input 154 Using Your Own Screw Terminal Panel Digital Outputs If you are using the high drive capability of any of the PCI boards ensure that the load is returned to the digital ground provided in the connector next to the outputs If just eight of the digital outputs are switching 16 mA per output then 128 mA of current flows To minimize problems with ringing loading and EMI a 33 Qresistor is used in series with all digital outputs You must consider this 33 Qresistor if you are matching cable impedance to the far end 155 Appendix C 156 Numerics 5B01 backplane 19 attaching 38 configuring for analog outputs 35 considerations when using 39 5B08 backplane 19 attaching 38 considerations when using 39 7BP04 1 backplane 19 attaching 38 considerations when using 39 7BP08 1 backplane 19 attaching 38 considerations when using 39 7BP16 1 backplane 19 attaching 38 considerations when using 39 A A D Over Sample error 87 A D sample clock 76 external 77 internal 76 A D subsystem 73 specifications 132 about trigger acquisition mode 84 109 abrupt stop 78 AC1315 cable 19 38 AC1393 adapter cable 38 AC1393 cable 19 accessories 19 acquisition modes about trigger 84 post trigger 81 pre trigger 82 aliasing 77 analog input 73 A D sample clock 76 calibrating 120 channel list 74 channels 73 conversion mo
104. oltage input current input strain gage input and frequency input To use the 7B series backplanes and modules with the STP300 you need the following additional accessories available from Data Translation AC1315 a 2 foot 26 pin female to 26 pin female cable that connects a 7B Series backplane to the AC1393 cable AC1393 a 6 inch 26 pin male to 25 pin female adapter cable that connects a 7B Series backplane to the AC1315 cable the AC1315 cable then connects to the STP300 screw terminal panel HES14 21 power supply A linear ac dc power supply that provides 24 Vdc for powering 7B Series backplanes DC300 backshell connector kit This kit includes a 68 pin mating connector and backshell if you want to build your own cable 19 Chapter 1 Getting Started Procedure The flow diagram shown in Figure 1 illustrates the steps needed to get started using a DT300 Series board This diagram is repeated in each getting started chapter the shaded area in the diagram shows you where you are in the getting started procedure Install the Board and Load the Device Driver see Chapter 2 starting on page 23 Attach and Configure the Screw Terminal Panel and Signal Conditioning Backplane see Chapter 3 starting on page 31 Wire Signals see Chapter 4 starting on page 41 fe Verify the Operation of the Board N see Chapter 5 starting on page 59 Figure 1 Getting Started Flow Di
105. on connector J1 of the DT300 Series boards STP68 DIN screw terminal panel A generic 68 pin screw terminal panel that is DIN rail mountable This screw terminal panel has one connector to accommodate the signals provided on connector J1 of the DT300 Series boards EP305 cable A 2 meter twisted pair shielded cable that connects the 68 pin connector J1 on the DT300 Series board to the J1 connector on the STP300 screw terminal panel 5B01 or 5B08 backplane and 5B Series modules The 5B01 is a 16 channel backplane the 5B08 is an 8 channel backplane Both backplanes accept 5B modules for signal conditioning applications including measuring thermocouples RTDs voltage input current input strain gage input and frequency input To use the 5B series backplanes and modules with the STP300 you need the following additional accessories available from Data Translation AC1315 cable A 2 foot cable with a 26 pin connector on each end that connects a 5B Series signal conditioning backplane to connector J2 on the STP300 screw terminal panel PWR 977 power supply A 5 V 3 A power supply for powering the 5B Series backplanes 7BP16 1 7BP08 1 or 7BP04 1 backplane and 7B Series modules The 7BP16 1 is a 16 channel backplane the 7BP08 1 is an 8 channel backplane and the 7BP04 1 is a 4 channel backplane All three backplanes accept 7B modules for signal conditioning applications including measuring thermocouples RTDs v
106. onfiguring Resistors R1 to R8 Bias Return Resistor locations R1 to R8 connect the low side of analog input channels to analog ground These resistor locations are typically used when connecting differential inputs to analog input channels 0 to 7 where R1 corresponds to analog input channel 0 and R8 corresponds to analog input channel 7 The high side of the corresponding analog input channel returns the source input impedance through the bias return resistors to the low side of the channels and then to analog ground Typical resistor values are 1 kQto 100 kQdepending on the application Refer to page 49 for an example of using bias return resistors with differential inputs Configuring Resistors R9 to R16 Current Shunt Resistor locations R9 to R16 are typically used to convert current to voltage on channels 0 to 7 where R9 corresponds to analog input channel 0 and R16 corresponds to analog input channel fi The resistor location connects the high side of the channel to the low side of the corresponding channel thereby acting as a shunt If for example you add a 250 Qresistor to location R9 and then connect a 4 to 20 mA current loop input to channel 0 the input range is converted to 1 to 5 V Note that depending on your application you may need to use resistors R1 to R8 with resistors R9 to R16 for proper operation Refer to page 50 for an example of using current shunt resistors with current loop inputs Attaching and Configuring a
107. ontinuous analog output 109 continuous counter timer 109 continuous digital I O 109 continuous operations continuously paced scan mode 78 event counting 98 externally retriggered scan mode 80 pulse output 101 software retriggered scan mode 78 conversion modes 77 continuously paced scan mode 78 externally retriggered scan mode 80 single value analog input 77 single value analog output 90 single value digital I O 93 software retriggered scan mode 78 conversion rate 78 79 80 counter timer 94 C T clock sources 95 cascading 116 cascading externally 54 56 57 channels 94 111 clock sources 115 connecting event counting signals 53 connecting frequency measurement signals 55 connecting pulse output signals 56 Index duty cycle 97 event counting 116 event counting mode 98 frequency measurement 99 high edge gate type 96 116 high level gate type 96 116 high to low output pulse 116 internal gate type 96 116 low edge gate type 96 116 low level gate type 96 116 low to high output pulse 116 one shot mode 103 116 pulse output types 97 rate generation mode 101 116 repetitive one shot mode 105 116 screw terminal assignments 45 specifications 136 subsystem 94 variable pulse width 116 when not using the STP300 154 counting events 98 current loop inputs 50 customer service 129 D D A subsystem 89 specifications 134 DAQ Adaptor for MATLAB 18 data encoding 86 90 110 data flow modes continuous about trigger 109 cont
108. or is used Digital Ground User TB26 D TB25 Counter gt D TB27 Output 0 gt t Gate 0 q TB28 Signal Source gq TB29 T User Clock Input 0 q 4 D D TESO User Clock Gate 1 1832 Input 1 Figure 19 Cascading Counters Shown for Event Counting Using Counters 0 and 1 and External Gate 0 54 Wiring Signals Connecting Frequency Measurement Signals This section describes two examples of how to connect frequency measurement signals to the STP300 screw terminal panel The first configuration uses the same wiring as an event counting application that does not use an external gate signal see Figure 18 on page 54 the software uses the Windows timer to specify the duration of the frequency measurement In this configuration the frequency of the clock input is the number of counts divided by the duration of the Windows timer If you need more accuracy than the Windows timer provides you can connect a pulse of a known duration such as a one shot output of another user counter to the external gate input as shown in Figure 20 In this configuration the frequency of the clock input is the number of counts divided by the period of the external gate input Digital Ground STP300 Panel Signal Source O Gate 0 User Clock Input 0 MN Figure 20 Connecting Frequency Measurement Signals ay O Y TB25 TB26 TB28 TB29 TB31 Shown for Clock I
109. or random order Up to 256 scans per trigger for a total of 262 144 samples per trigger in triggered scan mode Internal and external clock sources for the analog input subsystem Digital TTL triggering for the analog input subsystem Software calibration of the analog I O circuitry Two 8 bit digital ports programmable as inputs or outputs on a per port basis digital input lines from these lines can be included as part of the analog input channel gain list to correlate the timing of analog and digital events digital outputs can drive external solid state relays One 7 bit digital I O port programmable as a general purpose non clocked input or output port Overview e Four user counter timers programmable for event counting frequency measurement rate generation continuous pulse output one shot pulse output and repetitive one shot pulse output e Programmable gate types e Programmable pulse output polarities output types and duty cycles For a discussion of these features in detail refer to Chapter 6 starting on page 71 17 Chapter 1 Supported Software The following software is available for use with the DT300 Series board and is shipped on the Data Acquisition OMNI CD DT300 Series Device Driver The device driver is installed automatically when you install the software from the Data Acquisition OMNI CD You need the device driver to use the DT300 Series board with any of the supported software packages or
110. pecify them in this manner Input Ranges and Gains Each channel on the DT301 DT302 DT303 and DT304 board can measure unipolar and bipolar analog input signals while each channel on the DT321 and DT322 board can measure bipolar analog input signals only A unipolar signal is always positive 0 to 10 V on a DT300 Series board while a bipolar signal extends between the negative and positive peak values 10 V on a DT300 Series board Through software specify the range for the subsystem as 0 to 10 V for unipolar signals or 40 V to 10 V for bipolar signals DT300 Series boards provide gains of 1 2 4 and 8 which are programmable per channel Table 6 lists the effective ranges supported by the DT300 Series board using these gains Table 6 Gains and Effective Ranges Unipolar Analog Bipolar Analog Gain Input Range Input Range 1 0 to 10V 10V 2 Oto5V 5 V 4 0 to 2 5 V 2 5 V 8 0 to 1 25 V 1 25V a DT321 and DT322 boards support bipolar analog input ranges only For each channel choose the gain that has the smallest effective range that includes the signal you want to measure For example if the range of your analog input signal is 1 5 V specify a range of 40 V to 10 V for the board and use a gain of 4 for the channel the effective input range for this channel is then 2 5 V which provides the best sampling accuracy for that channel The way you specify gain depends on how you specified
111. period gt a Pulse 100 duty cycle 100 duty cycle 100 duty Output cycle Signal Figure 43 Example of Repetitive One Shot Mode 105 Chapter 6 106 Supported Device Driver Capabilities Data Plow and Operation OPHONS ce iia ee RR R A L T 109 AE uuaodoraorsr retocada aro 110 Tepod SE A A 110 A a eee iii ii ii 111 COMES unica dararids ie aio 111 o e E 112 o TTT 112 Thermocoupleand RID SPO peri co a 113 A e E RE RETRO RSI aR IPN ia 113 Vi RI RE RRR RET AER ARN Rr 114 e lt TTT 115 Counter TIAS A EEE EREE TEREE EEEN hi ee we ee alec 116 107 Chapter 7 The DT300 Series Device Driver provides support for the analog input A D analog output D A digital input DIN digital output DOUT and counter timer C T subsystems Table 10 DT300 Series Subsystems DT300 Series A D D A DIN DOUT C T QUAD Total Subsystems on Board 1 2 38 3 4 0 a The DIN and DOUT subsystems use the same DIO lines b D A subsystems are supported by the DT302 DT304 and DT322 boards only The tables in this chapter summarize the features available for use with the DT Open Layers for NET Class Library and the DT300 Series boards The DT Open Layers for NET Class Library provides properties that return support information for specified subsystem capabilities The first row in each table lists the subsystem types The first column in each table lists all possible subsystem capabilities A desc
112. portsGateLowEdge 116 SupportsGateLowLevel 116 SupportsGateNone 116 SupportsHighToLowPulse 116 SupportsInProcessFlush 110 SupportsInternalClock 115 SupportsLowToHighPulse 116 SupportsNegExternalTTLTrigger 114 SupportsOneShot 116 Index SupportsOneShotRepeat 116 SupportsPosExternalTTL Trigger 114 SupportsProgrammableGain 111 SupportsRateGenerate 116 SupportsSingleEnded 111 SupportsSingleValue 109 SupportsSoftwareResolution 112 SupportsSoftwareTrigger 114 SupportsTriggeredScan 110 SupportsVariablePulseWidth 116 SupportsWrapSingle 110 T technical support 128 throughput maximum 115 minimum 115 transferring data analog input 87 trigger acquisition modes about trigger 84 post trigger 81 pre trigger 82 triggered scan 110 number of scans per trigger 110 retrigger frequency 110 Triggered Scan Counter 79 triggered scan mode 78 triggers external 81 external negative digital 114 external positive digital 114 software 80 114 troubleshooting procedure 126 service and support procedure 128 troubleshooting table 126 TIL trigger 81 U unipolar signals 75 unpacking 25 using your own screw terminal panel 149 V variable pulse width 116 Visual Basic for NET programs 18 Visual Basic programs 18 Visual C programs 18 Visual C programs 18 voltage ranges 112 number of 112 W W1 jumper 35 W4 to W7 jumpers 35 Windows 7 loading the device driver 30 Windows Vista loading the device driver 29 Windows XP loading th
113. r of your nearest distributor 128 Troubleshooting If Your Board Needs Factory Service If your board must be returned to Data Translation do the following 1 Record the board s serial number and then contact the Customer Service Department at 508 481 3700 ext 1323 if you are in the USA and obtain a Return Material Authorization RMA If you are located outside the USA call your local distributor for authorization and shipping instructions see our web site www datatranslation com for the name and telephone number of your nearest distributor All return shipments to Data Translation must be marked with the correct RMA number to ensure proper processing 2 Using the original packing materials if available package the module as follows Wrap the board in an electrically conductive plastic material Handle with ground protection A static discharge can destroy components on the module Place in a secure shipping container 3 Return the board to the following address making sure the RMA number is visible on the outside of the box Customer Service Dept Data Translation Inc 100 Locke Drive Marlboro MA 01752 1192 129 Chapter 9 130 i Specifications Analog Input Speriicatlone iaia 132 Analog Output aea DIO odo RI A eae ened ola 134 Digital STARS ud A A A 135 Counter Timer Specifications ocios ic R RT R TRER EKES 136 Power Physical and Environmental Specinicatong s ro 137
114. ration using user counters 0 and 1 Note that you can also internally cascade counters using software if you internally cascade the counters you do not need to make the external cascading connections In this example counter 0 gate is logic high One Shot Trigger eee Digital Ground Gate 1 LU STP300 Panel Digital Ground User TB25 Counter CD TB26 Output 0 gt Signal Source 2 TB27 User Clock Input 0 D f P LD TB29 TB30 User Clock q TB32 Input 1 Figure 23 Cascading Counters Shown for One Shot Using Counters 0 and 1 and External Gate 1 57 Chapter 4 58 Y Verifying the Operation of a DT300 Series Board Running the Quick DataAcq Application 61 Testing Single Value Analog IMpuE ap A ends 62 Testing Single Value Analog Output ams i ia 63 Testing Continuous Analog Input 64 Testing Single Value Digital Input iii a 65 Testing single Value Digital e T aria 66 Testina Frequency Medsureme t oc nin i ae Meee eee os 67 Testing Pulse CUADO A ea 68 59 Chapter 5 60 fe Install the Board and Load the Device C Driver see Chapter 2 starting on page 23 Attach and Configure the Screw Terminal Panel and Signal Conditioning Backplane see Chapter 3 starting on page 31 Wire Signals see Chapter 4 starting on page 41 Verify the Operation of the Board this chapter
115. red scan mode and the post trigger event has not occurred the board continues to acquire pre trigger data using the software retrigger clock to clock the operation If however the post trigger event has occurred the board continues to acquire post trigger data using the software retrigger clock to clock the operation The about trigger operation stops when the specified number of post trigger samples has been acquired or when you stop the operation Refer to page 78 for more information on software retriggered scan mode Figure 29 illustrates continuous about trigger mode using a channel list of two entries channel 0 and channel 1 In this example pre trigger analog input data is acquired continuously on each clock pulse of the A D sample clock until the post trigger event occurs When the post trigger event occurs post trigger analog input data is acquired continuously on each clock pulse of the A D sample clock Principles of Operation Chano Chan 0 Chano Chan 0 Chano Chan 0 Chan 1 Chan 1 Chan 1 Chan 1 Chan 1 Chan 1 AID Sample Clock Pre trigger data acquired Post trigger data acquired gt lt gt Pre trigger event occurs Post trigger event Figure 29 Continuous About Trigger Mode Figure 30 illustrates the same example using software retriggered scan mode The multiscan count is 2 indicating that the channel list will be scanned twice per trigger
116. ription of each capability is followed by the property used to describe that capability in the DT Open Layers for NET Class Library Note Blank fields represent unsupported options For more information refer to the description of these properties in the DT Open Layers for NET Class Library online help or DT Open Layers for NET Class Library User s Manual 108 Supported Device Driver Capabilities Data Flow and Operation Options Table 11 DT300 Series Data Flow and Operation Options DT300 Series A D D A DIN DOUT C T QUAD Single Value Operation Support SupportsSingleValue Yes Yes Yes Yes Simultaneous Single Value Output Operations SupportsSetSingleValues Continuous Operation Support SupportsContinuous Yes Yes Yes Continuous Operation until Trigger SupportsContinuousPreTrigger Yes Continuous Operation before amp after Trigger SupportsContinuousPrePostTrigger Yes Waveform Operations Using FIFO Only SupportsWaveformModeOnly Simultaneous Start List Support SupportsSimultaneousStart Supports Programmable Synchronization Modes SupportsSynchronization Synchronization Modes SynchronizationMode Interrupt Support SupportsInterruptOnChange Output FIFO Size FifoSize Auto Calibrate Support SupportsAutoCalibrate a All 16 bits of the DIO lines from Ports A and B are assigned to A D input channel 16 While the DIN subsystem itself is in
117. rmined by the frequency of the A D sample clock refer to page 76 for more information on the A D sample clock The conversion rate of each scan is determined by the period between external retriggers therefore it cannot be accurately controlled The board ignores external triggers that occur while it is acquiring data Only external retrigger events that occur when the board is waiting for a retrigger are detected and acted on To select externally retriggered scan mode use software to specify the following parameters e The dataflow as continuous post trigger e The triggered scan mode as enabled e The retrigger source as the external positive digital TTL trigger e The number of times to scan per trigger or retrigger also called the multiscan count Triggers A trigger is an event that occurs based on a specified set of conditions The DT300 Series boards support a number of trigger sources and trigger acquisition modes described in the following subsections Trigger Sources The DT300 Series board supports a software trigger and an external digital TTL trigger A software trigger event occurs when you start the analog input operation the computer issues a write to the board to begin conversions Use software to specify the software trigger source Principles of Operation An external digital trigger event occurs when the DT300 Series board detects either a rising positive or falling negative edge on the External T
118. rsions start on the falling edge of the external A D sample clock input signal Using software specify the clock source as external For the DT300 Series board the clock frequency is always equal to the frequency of the external A D sample clock input signal that you connect to the board through the screw terminal panel Analog Input Conversion Modes DT300 Series boards support the following conversion modes e Single value operations are the simplest to use but offer the least flexibility and efficiency Using software you can specify the range gain and analog input channel among other parameters acquire the data from that channel and convert the result The data is returned immediately For a single value operation you cannot specify a clock source trigger source trigger acquisition mode scan mode or buffer Single value operations stop automatically when finished you cannot stop a single value Operation e Scan mode takes full advantage of the capabilities of the DT300 Series boards In a scan you can specify a channel list clock source trigger source trigger acquisition mode scan mode and buffer using software Two scan modes are supported continuously paced scan mode and triggered scan mode often called burst mode These modes are described in the following subsections 77 Chapter 6 78 Using software you can stop a scan by performing either an orderly stop or an abrupt stop In an orderly stop the bo
119. s 20 V step 10 0 us 100 mV step Slew rate 2 Vlus Multiplying Zero Error 10 mV maximum External Reference Output 10 V 10 mV Reference Input Impedance 5 kQ typical 134 Specifications Digital I O Specifications Table 27 lists the specifications for the DIN DOUT subsystems Table 27 DIN DOUT Subsystem Specifications Feature Port A Specifications Port B Specifications Port C Specifications Number of lines 8 bidirectional 8 bidirectional 7 bidirectional High level input voltage Low level input voltage 2 0 V minimum 0 8 V maximum 2 0 V minimum 0 8 V maximum Termination 47 kQ resistor pullup to 3 3 V 33 Q series resistor Inputs Input type Level sensitive Level sensitive Level sensitive Input load 2TTL 2 TTL 1 TTL 2 0 V minimum 0 8 V maximum High level input current 3 uA 3 uA 100 pA Low level input current 3 HA 3 HA 100 pA Outputs Output driver TTL TTL TTL Output driver high voltage 2 4 V minimum 2 4V minimum 2 4 V minimum IOH 45 mA IOH 45 mA IOH 4 mA Output driver low voltage 0 5 V maximum 0 5V maximum 0 8 V maximum IOL 12 mA IOL 12 mA IOL 4 mA 135 Appendix A 136 Counter Timer Specifications Table 28 lists the specifications for the C T subsystems Table 28 C T Subsystem Specifications Feature Specifications Number of counter timer channels
120. s the generated output Figure 40 shows the same example using a duty cycle of 25 Rate Generation Operation Starts External C T Clock Input Signal 4 kHz Pulse 75 duty cycle Output Signal Figure 39 Example of Rate Generation Mode with a 75 Duty Cycle 102 Principles of Operation Continuous Pulse Output Operation Starts ewer I JL LI LL LI Input Signal 4 kHz Pulse Output Signal 25 duty cycle Figure 40 Example of Rate Generation Mode with a 25 Duty Cycle One Shot Use one shot mode to generate a single pulse output signal from the counter when the operation is triggered determined by the gate input signal You can use this pulse output signal as an external digital TTL trigger to start other operations such as analog input or an external instrument When the one shot operation is triggered and a single pulse is output then the one shot operation stops All subsequent clock input signals and gate input signals are ignored The period of the output pulse is determined by the clock input signal Refer to page 95 for more information on the C T clock sources Using software specify the counter timer mode as one shot the clock source the polarity of the output pulse high to low transition or low to high transi
121. shows how to connect digital input signals lines 0 and 1 of digital Port A in this case to the STP300 screw terminal panel Digital I O Port A Line 0 STP300 Panel 07 TB49 TTL Inputs N Digital 1 O Port A Line 1 Digital Ground 009990909 TB43 TB50 06060999 Figure 15 Connecting Digital Inputs Shown for Channels 0 and 1 Port A Figure 16 shows how to connect a digital output signal line 0 of digital Port B in this case to the STP300 screw terminal panel STP300 Panel 9909909909 A 0 Out LED On WA 500 Q Digital I O Port B Line 0 o O D O O Digital Ground 0 TB43 O TB57 Figure 16 Connecting Digital Outputs Shown for Channel 0 Port B 52 Wiring Signals Connecting Counter Timer Signals The DT300 Series board and STP300 screw terminal panel provide counter timer channels that you can use to perform the following operations e Event counting e Frequency measurement e Pulse output rate generation one shot and repetitive one shot This section describes how to connect counter timer signals to perform these operations Connecting Event Counting Signals Figure 17 shows one example of connecting event counting signals to the STP300 screw terminal panel using user counter 0 In this example rising clock edges are counted while the gate is active STP300 Panel Digital Ground
122. sitive side of the precision voltage meter 2 Connect Analog Out 0 Return TB20 to the negative side of the precision voltage meter To calibrate DAC1 using an external voltage meter do the following 1 Connect Analog Out 1 TB23 to the positive side of the precision voltage meter 2 Connect Analog Out 1 Return TB22 to the negative side of the precision voltage meter Continue with the next section Using the Calibration Procedure To calibrate the analog output circuitry do the following 1 From the main menu of the DT300 Series Calibration Utility click Configure and then Board 2 Select the name of the DT300 Series board to configure from the combo box and then click OK From the main menu of the DT300 Series Calibration Utility click Calibrate Click D A In the D A box select DACO D p p p Click the increment or decrement arrows in the Manual Adjustment box until the display reads 0 V within 0 0005 V 7 Select FS and verify that the display reads 9 375 V within 12 mV for the DT322 and within 20 mV for the DT302 and DT304 boards 8 Inthe D A box select DACI 9 Click the increment or decrement arrows in the Manual Adjustment box until the display reads 0 V within 0 0005 V 10 Select FS and verify that the display reads 9 375 V within 12 mV for the DT322 and within 20 mV for the DT302 and DT304 boards 11 Click Quit when you are finished calibrating the analog output circuitry Onc
123. software ignores the extra sample The DT300 Series Device Driver accesses the hardware circular buffer to fill user buffers that you allocate in software It is recommended that you allocate a minimum of two buffers for analog input operations and add them to the subsystem queue using software Data is written to the queued input buffers continuously when no more empty buffers are available on the queue the operation stops The data is gap free Error Conditions The DT300 Series board can report the following analog input error conditions to the host computer e A D Over Sample Indicates that the A D sample clock rate is too fast This error is reported if a new A D sample clock pulse occurs while the ADC is busy performing a conversion from the previous A D sample clock pulse The host computer can clear this error To avoid this error use a slower sampling rate 87 Chapter 6 88 e Input FIFO Overflow Indicates that the analog input data is not being transferred fast enough from the Input FIFO across the PCI bus to the host computer This error is reported when the Input FIFO becomes full the board cannot get access to the PCI bus fast enough The host computer can clear this error but the error will continue to be generated if the Input FIFO is still full To avoid this error close other applications that may be running while you are acquiring data If this has no effect try using a computer with a faster processor or
124. specify the number of lines to read or write by specifying the resolution in software If you specify a resolution of 8 element 0 the first subsystem corresponds to the Port A lines 0 to 7 element 1 the second subsystem corresponds to Port B lines 0 to 7 and element 2 the third subsystem corresponds to Port C lines 0 to 6 If you specify a resolution of 16 element 0 corresponds to Ports A and B lines 0 to 15 element 1 also corresponds to Ports A and B lines 0 to 15 and element 2 corresponds to Port C lines 0 to 6 Note When the resolution is 16 digital I O lines 0 to 7 of Port B are represented as bits 8 to 15 of the digital value do not use element 0 and element 1 at the same time The resolution of Port C is fixed at 7 Port C cannot be combined with Port A or B 92 Principles of Operation Digital I O Operation Modes The DT300 Series board supports the following digital I O operation modes e Single value operations are the simplest to use but offer the least flexibility and efficiency You use software to specify the digital I O lines and a gain of 1 the gain is ignored Data is then read from or written to the digital I O lines For a single value operation you cannot specify a clock or trigger source Single value operations stop automatically when finished you cannot stop a single value operation e Continuous digital input takes full advantage of the capabilities of the DT300 Series board In t
125. stor to analog common it cannot be 0 Qdue to ground currents Using Your Own Screw Terminal Panel Analog Outputs The analog output channels on DT300 Series boards have a resolution of 12 or 16 bits even though the accuracy may be less Data Translation ensures that the analog outputs do not break into a high frequency oscillation with high capacitance loads that may be experienced with long cables Typically the analog outputs drive 1 000 pF without degradation and bandwidth limit with higher capacitive loads The grounds of most boards are optimized for analog inputs at the expense of some logic or high frequency noise on the analog outputs This is because the analog and digital grounds of the board are connected at the ADC s input The analog outputs are brought out as a high and a low signal but the low side is the analog ground at the DAC s output buffer To remove the high frequency noise and smooth the glitch energy on the analog outputs you can install a 15 kHz RC filter on the output a 100 Q resistor in series with the output and a 0 1 uF capacitor between the output side of the 100 Q resistor and output low 153 Appendix C Digital Inputs and Counter Timer Inputs TTL type inputs must have current limiting so that circuitry is not damaged when power is removed On all Data Translation PCI boards current limiting is used to prevent damage in this fault condition On high speed clock inputs a ground that is l
126. te depending on your application refer to page 95 for more information on the C T clock source Using software specify the counter timer mode as rate generation rate the C T clock source as either internal or external the polarity of the output pulses high to low transitions or low to high transitions the duty cycle of the output pulses and the gate type that enables the operation Refer to page 97 for more information on the pulse output types refer to page 96 for more information on gate types Ensure that the signals are wired appropriately Figure 38 shows one example of connecting a pulse output operation to the STP300 screw terminal panel using user counter 0 In this example a software gate type is used 101 Chapter 6 Digital Ground TB25 TB26 TB27 D Signal Source q TB29 User Counter Input 0 D D ja E a Y STP300 Panel User Counter Output 0 Heater Controller r L r L Digital Ground Figure 38 Connecting Rate Generation Signals Shown for Counter 0 a Software Gate Is Used Figure 39 shows an example of performing an enabled rate generation operation using an external C T clock source with an input frequency of 4 kHz a clock divider of 4 a low to high pulse type and a duty cycle of 75 The gate type does not matter for this example A 1 kHz square wave i
127. the cable is routed If the cable is over 3 feet you must consider the ringing and cross talk in the cable A typical cable has 30 pF per foot of capacitance If the source impedance is 1 000 Qand the cable is 3 feet then the cross talk based on the source impedance is 1 000 Qx 30 pF x 3 ft 90 ns This seems negligible but when you consider that it requires nine time constants to settle within 0 01 the cross talk becomes almost 10 of the time required to settle when switching channels at 100 kHz Coupling must also be considered when adjacent channels have high speed signals especially if these signals are TTL type with high speed edges Pseudo Differential Inputs Pseudo differential inputs allow one common mode voltage for all single ended inputs With this type of connection the low side of the instrumentation amplifier is used to sense an external common mode voltage For example if you have a signal conditioning rack the AMP LOW signal connects to the analog common of the external rack The pseudo differential configuration allows you to use the maximum number of input channels while placing an impedance between the external ground and the data acquisition ground or analog common Even if it is 100 Q this impedance provides the bias return currents for the inputs and causes only 10 mA of current to flow with a ground potential difference of 1 V The input bias current is typically in milliamperes This is usually manageable b
128. the channels as described in the following subsections Specifying the Gain for a Single Channel The simplest way to specify the gain for a single channel is to specify the gain for a single value analog input operation using software refer to page 77 for more information on single value operations 75 Chapter 6 Specifying the Gain for One or More Channels For DT300 Series boards you can use software to specify the gain for each analog input channel entry in the analog input channel list Note For analog input channel 16 the 16 digital I O lines in the channel list specify a gain of 1 for the channel entry A D Sample Clock Sources The DT300 Series board provides two clock sources for pacing analog input operations in continuous mode e An internal A D sample clock that uses the 24 bit A D Counter on the board e An external A D sample clock that you can connect to the screw terminal panel You use an A D sample clock to pace the acquisition of each channel in the channel list this clock is also called the A D pacer clock Note If you enter digital I O channel 16 in the channel list the A D sample clock internal or external also paces the acquisition of the 16 digital input lines The following subsections describe the internal and external A D sample clocks in more detail Internal A D Sample Clock The internal A D sample clock uses a 20 MHz time base Conversions start on the falling edge of the co
129. this connects Amp Low to Analog Ground on the 5B01 or 5B08 backplane to configure pseudo differential inputs Configuring Jumpers W4 to W7 Analog Outputs on a 5B01 or 7BP16 1 Backplane Note You cannot use analog output modules on the 5B08 7BP08 1 or 7BP04 1 backplane Use jumpers W4 to W7 if you are using the STP300 screw terminal panel with analog output modules on the 5B01 or 7BP16 1 signal conditioning backplane Install jumpers W4 and W5 to connect DACO from the DT300 Series board to channel 14 on the 5B01 or 7BP16 1 backplane Jumper W4 connects DACO to channel 14 jumper W5 connects DACO s return Install jumpers W6 and W7 to connect DACI from the DT300 Series board to channel 15 on the 5B01 or 7BP16 1 backplane Jumper W6 connects DACI to channel 15 jumper W7 connects DAC1 s return Note If you are using analog output modules on the 5B0lor 7BP16 1 backplane ensure that you make no connections to the screw terminals corresponding to that signal on the screw terminal panel For example if you are using channel 14 on the 5B01 for analog output do not use screw terminals corresponding to DACO on the screw terminal panel You can read the output of the DACS as inputs 35 Chapter 3 36 Configuring Resistors on the STP300 Locations are provided on the STP300 screw terminal panel for installing bias return and current shunt resistors The following subsections describe how to configure these resistors C
130. tion and the gate type to trigger the operation Refer to page 97 for more information on pulse output types Refer to page 96 for more information on gate types Note In the case of a one shot operation the pulse width is automatically set to 100 Ensure that the signals are wired appropriately Figure 41 shows one example of connecting a pulse output operation to the STP300 screw terminal panel using user counter 0 103 104 Chapter 6 Gate 0 Gating Switch STP300 Panel External id Digital Ground Digital Ground Q TB25 O TB27 Heater a TBAB Controller 102 User Counter Output 0 O D D Figure 41 Connecting One Shot Signals Shown for Counter Output 0 and Gate 0 Figure 42 shows an example of performing a one shot operation using an external gate input rising edge a clock output frequency of 1 kHz pulse period of 1 ms and a low to high pulse type One Shot Operation Starts External Gate Signal a 1 ms period gt 100 duty cycle Pulse Output Signal Figure 42 Example of One Shot Mode Principles of Operation Repetitive One Shot Use repetitive one shot mode to generate a pulse output signal each time the board detects a trigger determined by the gate input signal You can use this mode to clean up a poor clock input signal by changing its puls
131. to C Program Files Data Translation Win32 dtdataacq hlp where C is the letter of your hard disk drive 61 Chapter 5 62 Testing Single Value Analog Input To verify that the board can read a single analog input value do the following 1 Connect a voltage source such as a function generator to analog input channel 0 differential mode on the DT300 Series board Reter to page 49 for an example of how to connect a differential analog input In the Quick DataAcq application choose Single Analog Input from the Acquisition menu Select the appropriate DT300 Series board from the Board list box In the Channel list box select analog input channel 0 In the Range list box select the range for the channel The default is 10 V Select Differential Click Get to acquire a single value from analog input channel 0 The application displays the value on the screen in both text and graphical form Verifying the Operation of a DT300 Series Board Testing Single Value Analog Output To verify that the board can output a single analog output value do the following 1 M e P H D Connect an oscilloscope or voltmeter to DACO on the board Refer to page 51 for an example of how to connect analog output signals In the Quick DataAcq application choose Single Analog Output from the Control menu Select the appropriate DT300 Series board from the Board list box In the Channel list box select analog output chan
132. to access the capabilities of Data Translation data acquisition devices DataAcq SDK User s Manual UM 18326 For programmers who are developing their own application programs using the Microsoft C compiler this manual describes how to use the DT Open Layers Data Acq SDK to access the capabilities of Data Translation data acquisition boards This manual is provided on the Data Acquisition OMNI CD About this Manual e DTx EZ Getting Started Manual UM 15428 This manual describes how to use the ActiveX controls provided in DTx EZ to access the capabilities of Data Translation s data acquisition boards in Microsoft Visual Basic or Visual C e LV Link Online Help This help file describes how to use LV Link with the LabVIEW graphical programming language to access the capabilities of Data Translation data acquisition devices e PCI Specification PCI Local Bus Specification PCI Special Interest Group Portland OR Revision 2 1 June 1 1995 e Windows XP Windows Vista or Windows 7 documentation Where To Get Help Should you run into problems installing or using a DT300 Series board our Technical Support Department is available to provide technical assistance Refer to Chapter 9 starting on page 125 for more information If you are outside the U S or Canada call your local distributor whose number is listed on our web site www datatranslation com 13 About this Manual 14 Overview Peab
133. uation Frequency Measurement Number of Events Duration of the Windows Timer If you need more accuracy than the Windows timer provides you can connect a pulse of a known duration such as a one shot output of another user counter to the external gate input as shown in Figure 36 Digital Ground Q TB25 TB26 D TB28 Signal Source Gate 0 O TB29 User Clock Input 0 User D TB31 Counter D Output 1 STP300 Panel Figure 36 Connecting Frequency Measurement Signals Shown for Clock Input 0 and External Gate 0 In this configuration use software to set up the counter timers as follows 1 Set up one of the counter timers for one shot mode specifying the clock source clock frequency gate type and type of output pulse high or low 2 Set up the counter timer that will measure the frequency for event counting mode specifying the clock source to count and the gate type this should match the pulse output type of the counter timer set up for one shot mode 3 Start both counters events are not counted until the active period of the one shot pulse is generated 4 Read the number of events counted allow enough time to ensure that the active period of the one shot occurred and that events have been counted 5 Determine the measurement period using the following equation Measurement period 1 Active Pulse Width Clock Frequency 6 Det
134. unter output the output pulse is active low Using software specify the clock source as internal and the clock frequency at which to pace the operation The minimum frequency supported is 1 2 Hz 1 2 Samples s the maximum frequency supported differs depending on the board type as shown in Table 7 Table 7 Maximum Frequency Supported Board Type Maximum Frequency DT301 225 kHz DT302 225 kHz DT303 400 kHz 76 Principles of Operation Table 7 Maximum Frequency Supported cont Board Type Maximum Frequency DT304 400 kHz DT321 250 kHz DT322 250 kHz According to sampling theory Nyquist Theorem specify a frequency that is at least twice as fast as the input s highest frequency component For example to accurately sample a 20 kHz signal specify a sampling frequency of at least 40 kHz Doing so avoids an error condition called aliasing in which high frequency input components erroneously appear as lower frequencies after sampling Note If your channel list contains only digital input channel 16 the maximum frequency is 3 MHz 3 MSamples s External A D Sample Clock The external A D sample clock is useful when you want to pace acquisitions at rates not available with the internal A D sample clock or when you want to pace at uneven intervals Connect an external A D sample clock to screw terminal TB48 on the STP300 screw terminal panel pin 22 on connector J1 Conve
135. use resistor R1 to connect the low side of channel 0 to analog B STP300 Panel a Analog In 0 181 O g g TB2 dD TB18 O Analog In 0 D nalog In Return i D D 000999 DC Supply Analog Ground Figure 10 Connecting Differential Voltage Inputs Shown for Channel 0 49 Chapter 4 Note that since they measure the difference between the signals at the high and low 3 inputs differential connections usually cancel any common mode voltages leaving only the signal However if you are using a grounded signal source and ground loop problems arise connect the differential signals to the STP300 screw terminal panel as shown in Figure 11 In this case make sure that the low side of the signal 3 is connected to ground at the signal source not at the STP300 screw terminal panel and do not tie the two grounds together STP300 Panel TB1 Analog In 0 D TB2 e TB18 Grounded we D D Signal Es Source E Analog In 0 a E Nx Return J O D E D D R1 D D Signal Source Ground Vgi Analog Ground Resistor R1 should be installed for bias return in case the external ground is floating Figure 11 Connecting Differential Voltage Inputs from a Grounded Signal Source Shown for Channel 0 Connecting Current Loop Inputs Figure 12 shows how to connect a current loop input channel 0 in this case to the STP300 screw terminal panel
136. utilities The Quick DataAcq application This application provides a quick way to get a DT300 Series board up and running Using the Quick DataAcq application you can verify the features of the board display data on the screen and save data to disk The quickDAQ application An evaluation version of this NET application is included on the Data Acquisition OMNI CD quickDAQ lets you acquire analog data from all devices supported by DT Open Layers for NET software at high speed plotit during acquisition analyze it and or save it to disk for later analysis Calibration Utility This utility allows you to calibrate the analog I O circuitry of the board Refer to Chapter 8 starting on page 117 for more information on this utility Measure Foundry An evaluation version of this software is included on the Data Acquisition OMNI CD Measure Foundry is drag and drop test and measurement application builder designed to give you top performance with ease of use development Order the full development version of this software package to develop your own application using real hardware DT Open Layers for NET Class Library Use this class library if you want to use Visual C or Visual Basic for NET to develop your own application software for the DT300 Series boards using Visual Studio 2003 or Visual Studio 2005 the class library complies with the DT Open Layers standard DataAcq SDK Use the Data Acq SDK if you want to use Visual
137. utomatically when finished you cannot stop a single value operation Data Format Data from the host computer must use offset binary data encoding for analog output signals Using software specify the data encoding as binary In software you need to supply a code that corresponds to the analog output value you want the board to output To convert a voltage to a code use the following formulas LSB _FSR 2N Code Vout offset LSB where e LSB is the least significant bit e FSR is the full scale range For the DT300 Series the full scale analog output range is 5 for the unipolar range of 0 to 5 V 10 for the unipolar range of 0 to 10 V or the bipolar output range of 5 V or 20 for the bipolar range or 10 V e Nis the number of bits of the D A converter For the DT302 and DT304 boards N is 12 For the DT322 board N is 16 e Code is the raw count used by the software to represent the voltage e Vout is the analog voltage e Offset is the minus full scale value The minus full scale value is 0 0 V for the unipolar range and either 5 V for the 5 V range or 10 V for the 10 V range For example assume that you are using a DT302 board with a unipolar output range of 0 to5 V The minus full scale value is 0 V If you want to output a voltage of 4 7 V determine the code value as follows LSB __5 0 001221 V 4096 Code 4 7 V 0V 0 001221 V Code 3849 0F09h 90 Principles of Operation Similarly assum
138. utput Subsystem e eee ee K eee eee 123 117 Chapter 8 118 The DT300 Series boards are calibrated at the factory and should not require calibration for initial use We recommend that you check and if necessary readjust the calibration of the analog I O circuitry on the DT300 Series boards every six months Note Ensure that you installed the DT300 Series Device Driver and prior to using the DT300 Series Calibration Utility This chapter describes how to run the DT300 Series Calibration Utility and calibrate the analog I O circuitry of the DT300 Series boards Calibration Running the Calibration Utility To start the DT300 Series Calibration Utility do the following 1 Click Start from the Task Bar 2 Browse to Programs Data Translation Inc Calibration DT300 Calibration Utility The main menu appears Once the DT300 Series Calibration Utility is running you can calibrate the analog I O circuitry as described in the following sections 119 Chapter 8 Calibrating the Analog Input Subsystem To calibrate the analog input circuitry you need an external 9 3750 V reference precision voltage source Using an external 9 3750 V reference provides an accuracy of approximately 3 LSB for the DT321 and DT322 boards and 1 LSB for remaining DT300 Series boards You can also choose to calibrate the analog input circuitry automatically or manually auto calibration is the easiest to use and is the recommend
139. y the common mode range of the instrumentation amplifier and analog ground system Consider the problems with 1 Q of impedance between 1 V of potential difference The resulting 1 A of current causes many problems in the analog signal integrity If it is provided and not used ensure that you connect AMP LOW to the analog common of the data acquisition board or to ground when running in single ended mode 151 Appendix C 152 Differential Inputs Differential inputs offer the maximum noise rejection at the expense of half your total channel count For the best results shielded twisted pairs are a must The shield must connect at one end so that ground currents do not travel over the shield In low level voltage applications differential inputs reduce problems not only due to electrostatic and magnetic noise but due to cross talk and thermal errors One problem to consider with differential inputs is the bias current error The differential impedance is usually hundreds of megaohms With a very small bias current multiplied by this high input impedance the voltage produced is out of the common mode input range of the instrumentation amplifier An external resistor must be provided to return this bias current to the analog common of the data acquisition board This resistor is typically in the order of 1 kQ to 100 kQ from the input low side to analog common Alternatively the external common can be returned through a 10 Q to 100 kQ resi

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