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DT9832 Series User`s Manual

1. Ind 16 Bit Power ADC USB 2 0 Interface Y e e e 45V 15V e e e e e e Analog 500 V Isolation In 3 16 Bit Barrier ADC Input FIFO Synchronous Digital In i lena es 15 0 16 Bit Digital Lt leali Fata Analog 16 Bit OVtO D A Analog Clock 1 0 Output 16 Bit Out 1 Pi 2 32 Bit HES D A E Gate 1 0 Counter E Timers gt pe 16 Bit Out 1 0 Digital lt Out Digital Encoder 0 Li d Encoder 1 2 m B ss Encoder 2 P InputClock Ext A D Trig Se p Ext A D Clk p bod ogic Ext D A Trig OutputClock utputCloc Ext D A Clk gt Figure 20 Block Diagram of the DT9832 Series Modules 72 Principles of Operation Analog Input Features This section describes the following features of analog input A D operations on the DT9832 Series module e Input resolution described below Analog input channels described below Input ranges described on page 78 Input sample clock sources described on page 78 Analog input conversion modes described on page 79 Input triggers described on page 81 e Data format and transfer described on page 82 Error conditions described on page 83 Input Resolution 5 Input resolution is fixed at 16 bits you cannot specify the resolution in software Analog Input Channels The DT9832 supports four analog inputs The DT9832A support
2. J3 Pin J3 Pin Assignment Signal Description Assignment Signal Description 19 Digital Input 8 53 Digital Output 8 20 Digital Input 7 54 Digital Output 7 21 Digital Input 6 55 Digital Output 6 22 Digital Input 5 56 Digital Output 5 23 Digital Input 4 57 Digital Output 4 24 Digital Input 3 58 Digital Output 3 25 Digital Input 2 59 Digital Output 2 26 Digital Input 1 60 Digital Output 1 27 Digital Input 0 61 Digital Output 0 28 External ADC Clock 62 External ADC Trigger 29 External DAC Clock 63 External DAC Trigger 30 Digital Ground 64 Digital Ground 31 5V 65 Digital Ground 32 Reserved 66 Reserved 33 Analog Out 12 67 Analog Out 1 Return 34 Analog Out 02 68 Analog Out 0 Return a Reserved on DT9832A 02 0 OEM DT9832A 02 0 BNC DT9832 04 0 OEM and DT9832 04 0 BNC modules Connector Pin Assignments OEM Wiring Methods You can connect signals directly through the J2 and J3 connectors on the OEM version of the DT9832 Series module or you can connect signals using the connectors and screw terminals on the following accessories e EP353 This accessory panel plugs into connector D of the OEM version of the DT9832 Series module It provides one 37 pin D sub connector for attaching analog input signals and one 26 pin connector for attaching a AC1315 cable 5B Series signal conditioning backplane Refer to page 169 for more information about attaching the EP353 to the
3. box BNC Connection Box Analog In 0 o T OR Signal Source Analog In 1 ue rk OR N B Note that the BNC box automatically connects the Analog Ground signal B 5 8 appropriately a 3 Figure 7 Connecting Single Ended Inputs to the BNC Connection Box 47 Chapter 3 Connecting Analog Output Signals Figure 8 shows how to connect an analog output voltage signal channel 0 in this case to the BNC connectors on the BNC connection box Load Analog Out 0 Note that the BNC box automatically connects the Analog Ground signal appropriately BNC Connection Box 8 9 o o S DACO DACClock E E e DACI ADClok IS Se 9s DACTrig i E o O O ADTig O O Figure 8 Connecting Analog Outputs to the BNC Connector Box 48 Wiring Signals to the BNC Connection Box Connecting Digital VO Signals Figure 9 shows how to connect digital input signals lines 0 and 1 in this case to the Digital In Out pins Q 17 Digital Ground Digital Input 1 2 D 2 Digital Input 0 TTL ml 1 D sub pins Figure 9 Connecting Digital Inputs to the D sub Pins Figure 10 shows how to connect a digital output line 0 in this case to the Digital In Out pins i q 37 5V J Digital Ground P atte Digital Out 0 D 20 D sub pins
4. 40 Wiring Signals to the BNC Connectors 42 Wiring Signals to the D Sub Connectors 43 Digital In Out Connector zd CT Enc In Analog Out Clk Trig Connector 45 Connecting Analog Input Signals renen 47 Connecting Analog Output Signals 48 Connecting Digital I O Signals 0 0 e eee 49 Connecting Counter Timer Signals 50 Event Counting 50 Up Down Counting cesses 52 Frequency Measurement 0 0 eee cece ee eee eee 53 Period Pulse Width Measurement 53 Edge to Edge Measurement 54 Continuous Edge to Edge Measurement 55 Pulse Output 56 Connecting Quadrature Decoder Signals 58 Chapter 4 Verifying the Operation of a Module 59 Installing the Quick DataAcq Application 61 Running the Quick DataAcq Application 61 Testing Single Value Analog Input 62 Testing Single Value Analog Output 63 Testing Continuous Analog Input 2 64 Testing Single Value Digital Input 65 Testing Single Value Digital Output 66 Testing Frequency Measurement seseeeese 67 Testing Pulse Output ica pi eg Uber RE uhr preti e ees 68 Contents Part 2 Using Your Module 69 Chapter 5 Principles of Operation 71
5. O Figure 33 Secondary Power Connector The pin assignments for the secondary power connector TB1 are as follows Pin1 5V e Pin2 Ground Pin3 Shield chassis ground 180 Ground Power and Isolation Ground Power and Isolation Connections Figure 34 illustrates how ground power and isolation are connected on a DT9832 Series module The TB1 5 V connector is available from the OEM TB1 2 version of a DT9832 5V J3 Series module only 5 V The 5 V connector is M available from the OEM e version and the BNC DGND connection box Earth GND 5 V USB used for L en initialization only not DC for power USB USB Interface Interface Power DC DGNDUSB DC DC NEN A D and D A Earth GND Boa 15V AGND 15V A D and D A System Figure 34 Ground Power and Isolation Connections 181 Appendix C Keep the following in mind Earth ground on the DT9832 Series module is not connected to DGND or AGND Earth ground is connected to the aluminum case of the BNC connection box You should connect earth ground to the power supply earth You should isolate the 5V DGND input Note that the EP361 power supply shipped with the BNC connection box and available from Data Translation for the OEM version of the module has no connection between 45V DGND and earth ground
6. Note You typically use the external C T clock the clock connected to the Counter n Clock input signal to measure frequency event counting or to measure the time interval between edges measure mode The external C T clock is not generally used for rate generation If you specify a counter timer in the analog input channel list the A D clock determines how often you want to read the counter value Refer to page 78 for more information about the A D clock Gate Types The edge or level of the Counter n Gate signal determines when a counter timer operation is enabled DT9832 Series modules provide the following gate types e None A software command enables any counter timer operation immediately after execution e Logic low level external gate input Enables a counter timer operation when the Counter n Gate signal is low and disables the counter timer operation when the Counter n Gate signal is high Note that this gate type is used for event counting and rate generation modes refer to page 99 for more information about these modes e Logic high level external gate input Enables a counter timer operation when the Counter n Gate signal is high and disables a counter timer operation when the Counter n Gate signal is low Note that this gate type is used for event counting and rate generation modes refer to page 99 for more information about these modes 97 Chapter 5 98 Falling edge external gate i
7. measurement mode measure the C T clock source as internal the start edge type and the stop edge type Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting an edge to edge measurement application 103 Chapter 5 Continuous Edge to Edge Measurement In continuous edge to edge measurement mode the counter starts incrementing when it detects the specified start edge When it detects the next start edge type the value of the counter is stored and the next edge to edge measurement operation begins automatically Every time an edge to edge measurement operation completes the previous measurement is overwritten with the new value When you read the counter as part of the analog input data stream the current value from the last edge to edge measurement operation is returned and the value of the counter is reset to 0 Refer to page 102 for more information on edge to edge measurement mode Note If you read the counter before the measurement is complete 0 is returned For example you might see results similar to the following if you read the value of the counter timer as part of the analog input data stream Table 6 An Example of Performing a Continuous Edge to Edge Measurement Operation as Part of the Analog Input Channel List Counter Status of Continuous Timer Edge to Edge Measurement Time A D Value Value Mode 10 5002 0 Operation started when the C T
8. Connecting a Precision Voltage Source 138 Using the Auto Calibration Procedure 138 Using the Manual Calibration Procedure 139 Calibrating the Analog Output Subsystem 141 Appendix A Specifications 143 Appendix B Connector Pin Assignments 157 OEM Version Connectors 158 OEM J2 Connector 159 OEM J3 Connector 161 OEM Wiring Methods 163 OEM TBI Connector es 164 BNC Box Connectors 165 Digital I O Connector 0 000 165 Contents 10 CT Enc In Analog Out Clk Trig Connector 167 EP353 Accessory Panel Connectors 169 Connector Il messe RR casier 169 Connector EE 171 EP356 Accessory Panel Connectors 173 Connector RE 174 Connector RE 175 EP355 Screw Terminal Assignments 177 Appendix C Ground Power and Isolation 179 Secondary Power Connector 00sec 180 Ground Power and Isolation Connections 181 INDOX cicci ie ae RUE NUR RONDA BUR Re 183 About this Manual The first part of this manual describes how to install and set up your DT9832 Series module and device driver and verify that your module is working properly The second part of this manual describes the features of the DT9832 Series modules the capabilities of the DT9832 Series Device Driver and how to program the DT9832 Series board using DT Open Layers
9. Figure 10 Connecting Digital Outputs to the D sub Pins 49 Chapter 3 Connecting Counter Timer Signals The BNC connection box provides two counter timer channels that you can use for the following operations e Event counting e Up down counting Frequency measurement Pulse width period measurement Edge to edge measurement Continuous edge to edge measurement Pulse output continuous one shot and repetitive one shot This section describes how to connect counter timer signals Refer to Chapter 5 for more information about using the counter timers Event Counting Figure 11 shows how to connect counter timer signals to the CT Enc In Analog Output CIk Trig D sub pins to perform an event counting operation on counter timer 0 using an external gate The counter counts the number of rising edges that occur on the Counter 0 Clock input when the Counter 0 Gate signal is in the active state as specified by software Refer to Chapter 5 for more information 50 Wiring Signals to the BNC Connection Box Digital Ground External Sg Gating Switch 9 D 24 m Counter 0 Gate kp 28 f NC Counter 0 Clock 8 iD 5 Signal Source Digital Ground D sub Pins Figure 11 Connecting Counter Timer Signals to the D sub Pins for an Event Counting Operation Using an External Gate Figure 12 shows how to connect counter timer signals to the CT Enc In Analog Outp
10. Chapter 6 122 Triggers Table 18 DT9832 Series Trigger Options DT9832 Series Software Trigger Support SupportsSoftwareTrigger AID Yes D A Yes DIN Yes DOUT Yes C T Yes QUAD Yes External Positive TTL Trigger Support SupportsPosExternalTTLTrigger Yes Yes Yes Yes External Negative TTL Trigger Support SupportsNegExternalTTLTrigger External Positive TTL Trigger Support for Single Value Operations SupportsSvPosExternalTTLTrigger Yes Yes External Negative TTL Trigger Support for Single Value Operations SupportsSvNegExternalTTLTrigger Positive Threshold Trigger Support SupportsPosThresholdTrigger Negative Threshold Trigger Support SupportsNegThresholdTrigger Yes Digital Event Trigger Support SupportsDigitalEventTrigger Supported Device Driver Capabilities Clocks Table 19 DT9832 Series Clock Options DT9832 Series AID D A DIN DOUT C T QUAD Internal Clock Support SupportsInternalClock Yes Yes Yes Yes External Clock Support SupportsExternalClock Yes Yes Yes Yes Simultaneous Input Output on a Single Clock Signal SupportsSimultaneousClocking Yes Yes Base Clock Frequency BaseClockFrequency 48 MHz 48 MHz 0 0 48 MHz 48 MHz Maximum Clock Divider 2 147 2 147 MaxExtClockDivider 0 0 1 1 483 647 483 647 Minimum Clock Divider MinExtClockDivider 0 0 1 1 2 2 Maximum Frequency
11. external clock divider maximum 123 minimum 123 external negative digital trigger 82 86 122 external positive digital trigger 82 86 122 F factory service 133 features 18 FifoSize 115 formatting data analog input 82 analog output 90 frequency base clock 123 external A D clock 78 Index external C T clock 96 external DAC clock 87 internal A D clock 78 123 internal A D sample clock 123 internal C T clock 96 123 internal DAC clock 87 internal retrigger clock 117 output pulse 103 frequency measurement 53 67 101 G gain actual available 119 analog output 86 number of 119 programmable 119 gate type 97 high edge 125 high level 124 internal 124 low edge 125 low level 124 gate falling edge type 125 gate rising edge type 125 generating pulses 105 106 107 ground 181 H hardware features 18 help online 61 high edge gate type 125 high level gate type 124 hot swapping 31 I index mode 110 inprocess buffers 116 input channels 73 ranges 78 resolution 73 sample clock sources 78 installing the Quick DataAcq application 61 internal clock 96 123 gate type 124 interrupt on change 94 115 interrupts 115 isolation 181 J J1 connector pin assignments EP353 170 EP356 174 J2 connector pin assignments EP353 172 EP356 45 176 OEM version 159 J3 connector pin assignments OEM version 161 L LabVIEW 22 LED 32 33 LEDs 33 34 lines digital I O 92 low edge gate type 125 low lev
12. 0 0 0 0 Data Encoding Table 11 DT9832 Series Data Encoding Options DT9832 Series A D D A DIN DOUT C T QUAD Binary Encoding Support SupportsBinaryEncoding Yes Yes Yes Yes Yes Yes Twos Complement Support SupportsTwosCompEncoding Returns Floating Point Values ReturnsFloats 117 Chapter 6 118 Channels Table 12 DT9832 Series Channel Options DT9832 Series AID D A DIN DOUT C T QUAD Number of Channels 13 or NumberOfChannels 152 gb 1 1 1 1 SE Support SupportsSingleEnded Yes SE Channels MaxSingleEndedChannels 20r4 JO 0 0 0 0 DI Support SupportsDifferential Yes Yes Yes Yes Yes DI Channels MaxDifferentialChannels 0 2 1 1 1 1 Maximum Channel Gain List Depth 13 or CGLDepth 152 3b 1 1 0 0 Simultaneous Sample and Hold Support SupportsSimultaneousSampleHold Yes Channel List Inhibit SupportsChannelListlnhibit a For DT9832A modules 2 channels channels 0 to 1 read the analog input channels channel 2 reads all 16 bits from the DIN subsystem channels 3 to 6 read the C T channels and channels 7 to 12 read the quadrature decoder channels For DT9832 modules 4 channels channels 0 to 3 read the analog input channels channel 4 reads all 16 bits from the DIN subsystem channels 5 to 8 read the C T channels and channels 9 to 15 read the quadrature decoder channels b Analog output channels are nu
13. 000 V 139 Chapter 8 2 Adjust the gain as follows a Verify that 49 375 V is applied to AD Cho and that A D Channel Select is set to Channel 0 The current voltage reading for this channel is displayed in the A D Value window b Adjust the gain by entering values between 0 and 255 in the Gain edit box or by clicking the up down buttons until the A D Value is 9 3750 V Note Atany time you can click Restore Factory Settings to reset the A D calibration values to their original factory settings This process will undo any auto or manual calibration settings Once you have finished this procedure continue with Calibrating the Analog Output Subsystem 140 Calibration Calibrating the Analog Output Subsystem This section describes how to use the DT9832 DT9836 Calibration Utility to calibrate the analog output subsystem of a DT9832 Series module To calibrate the analog output circuitry you need to connect an external precision voltmeter to analog output channels 0 and 1 of the DT9832 Series module Do the following to calibrate the analog output circuitry 1 Select the D A Calibration tab of the DT9832 DT9836 Calibration Utility 2 Connect an external precision voltmeter to Analog Output 0 DAC Ch0 of the DT9832 Series module 3 Inthe DAC Output Voltage box select 9 375 V 4 Adjust the offset by entering values between 0 and 255 in the DAC 0 Offset edit box or by clicking the up
14. Analog Input Features 73 Input Resolution LL 73 Analog Input Channel 73 Specifying a Single Analog Input Channel 74 Specifying One or More Analog Input Channels 74 Specifying the Digital Input Port in the Analog Input Channel List eme ee eR Re eee 75 Specifying Counter Timers in the Analog Input Channel List cir Rex b ERR 75 Specifying Quadrature Decoders in the Analog Input Channel Diet eek edere te ete 76 Input Ranges ssssesseeeeeee eee 78 Input Sample Clock Sources 78 Analog Input Conversion Modes 79 Single Value Mode 79 Continuous Scan Mode 79 Input Trisgers 132 eee dede EE Rene hepa cues 81 Data Format and Transfer 82 Error Conditions L e eee eee eee 83 Analog Output Features 0 eee ee 84 Output Resolution 84 Analog Output Channel 84 Specifying a Single Analog Output Channel 85 Specifying Multiple Analog Output Channels and or the Digital Output Port 85 Output Ranges and Game 86 Output TIS Ors eege ere Malad oleae deii sense 86 Output Clocks 87 Contents Output Conversion Modes 87 Streaming Analog Output 2 88 Waveform Generation 89 Data Format and Transfer 90 Error Conditions L LL 91 Digital I O Features 202 0002 emere rn 92 Digi
15. Box Digital Ground External EN Gating Switch O qp 24 Counter 0 Gate Counter 0 Out lt D9 L i Heater Controller Digital Ground D sub Pins Figure 18 Connecting Counter Timer Signals to the D sub Pins for a Pulse Output Operation Using an External Gate 57 Chapter 3 Connecting Quadrature Decoder Signals The BNC connection box provides three quadrature decoder channels that allow simultaneous decoding of three quadrature encoded inputs Each quadrature decoder supports A B and Index inputs and is used to interface with a quadrature encoder sensor The A and B input relationships are used to increment or decrement the positional count the Index input can be used to zero out the positional count Refer to Chapter 5 for more information about using the quadrature decoders Figure 19 shows how to connect signals from a quadrature encoder to quadrature decoder 0 using the CT Enc In Analog Output Clk Trig D sub pins m Quad Dec 0 B 5 V Power 32 Quadrature Quad Dec 0 Index Encoder gt ts Quad Dec 0 A gt Q12 Digital Ground g p gt 5 D sub Pins Figure 19 Connecting Quadrature Decoder Signals to the D sub Pins 58 E Verifying the Operation of a Module Installing the Quick DataAcq Application 61 Running the Quick DataAcq Application 61 Testing Sing
16. D A DIN DOUT C T QUAD Yes Low Edge Gate Type Support SupportsGateLowEdge Yes Level Change Gate Type Support SupportsGateLevel Clock Falling Edge Type SupportsClockFalling Clock Rising Edge Type SupportsClockRising Yes Yes Gate Falling Edge Type SupportsGateFalling Yes Gate Rising Edge Type SupportsGateRising Interrupt Driven Operations SupportsInterrupt Yes a In one shot and repetitve one shot mode the pulse width is set to 100 automatically b High edge and low edge are supported for one shot and repetitive one shot modes High level and low level are supported for event counting up down counting frequency measurement edge to edge measurement continuous edge to edge measurement and rate generation modes 125 Chapter 6 126 Troubleshooting Generale EE 128 Ischinicalsappoltt coi licei ilo 132 If Your Module Needs Factory Service 133 127 Chapter 7 128 General Checklist Should you experience problems using a DT9832 Series module do the following 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 meet
17. DT9832 Series Thermocouple Support SupportsThernocouple AID D A DIN DOUT C T QUAD 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 Supported Device Driver Capabilities Table 16 DT9832 Series Thermocouple and RTD Support Options DT9832 Series A D D A DIN DOUT C T QUAD 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 17 DT9832 Series IEPE Support Options DT9832 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 SupportsExternalExcitationCurrent Src Software Programmable Internal Excitation Current Source SupportsInternalExcitationCurrentSrc Available Excitation Current Source Values SupportedExcitationCurrentValues 121
18. Input Signal p internal or external e Counter Pulse Output Signal i Gate Input Signal software or external input Figure 22 Counter Timer Channel 95 Chapter 5 To specify the counter timer to use in software specify the appropriate C T subsystem Using software you can also specify one or more of the counter timers in the analog input channel list You need two channel list entries to read a 32 bit counter value The first entry stores the lower 16 bit word and the second entry stores the upper 16 bit word Refer to page 75 for more information about using C Ts in the channel list C T Clock Sources The following clock sources are available for the general purpose counter timers Internal C T clock Through software specify the clock source as internal and specify the frequency at which to pace the operation this is the frequency of the Counter n Out signal This is typically used in rate generation mode External C T clock An external C T clock is useful when you want to pace counter timer operations at rates not available with the internal C T clock or if you want to pace at uneven intervals The frequency of the external C T clock can range up to 24 MHz Connect the external clock to the Counter n Clock input signal on the DT9832 Series module Counter timer operations start on the rising edge of the clock input signal 96 Principles of Operation
19. The USB connector case is connected to earth ground The USB data lines and USB GND are not connected to earth ground e The USB DGND is connected to the USB GND of the PC USB port 182 A A D subsystem specifications 144 accessories 23 aliasing 78 analog input adding a digital input port to the channel list 75 adding counter timers to the channel list 75 adding quadrature decoders to the channel list 76 calibrating 138 channel list 74 channels 73 continuous operations 79 conversion modes 79 data format and transfer 82 error conditions 83 ranges 78 resolution 73 sample clock sources 78 single ended operations 79 testing continuous 64 testing single value 62 triggers 81 wiring single ended inputs 47 analog output calibrating 141 channel list 85 channels 84 clock sources 87 conversion modes 87 Index data format and transfer 90 error conditions 91 gain 86 ranges 86 resolution 84 single value operations 87 streaming operations 87 subsystem specifications 147 testing 63 wiring 48 analog threshold trigger 82 applet Open Layers Control Panel 94 131 application wiring analog inputs 47 analog outputs 48 continuous edge to edge measurement 55 digital inputs and outputs 49 edge to edge measurement 54 event counting 50 frequency measurement 53 period measurement 53 pulse output 56 pulse width measurement 53 up down counting 52 applications LV Link 22 Measure Foundry 21 Quic
20. Up Down Counting Use up down counting mode if you want to increment or decrement the number of rising edges that occur on the Counter n Clock input depending on the level of the Counter n Gate signal If the Counter n Gate signal is high the C T increments if the specified gate signal is low the C T decrements Using software specify the counter timer mode as up down counting up down and the C T clock source as external Note that you do not specify the gate type in software Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting an up down counting application Principles of Operation Note Initialize the counter timer so that the C T never increments above FFFFFFFFh nor decrements below 0 Frequency Measurement Use frequency measurement mode if you want to measure the number of rising edges that occur on the Counter n Clock input over a specified duration Using software specify the counter timer mode as frequency measurement count or event counting count the clock source as external and the time over which to measure the frequency You can use the Windows timer which uses a resolution of 1 ms or 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 Counter n Gate input signal If you use a known pulse use software to set up the counter timer
21. and Television Interference This equipment has been tested and found to comply with CISPR EN55022 Class A and EN61000 6 1 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 Canadi
22. connector on the DT9832 Series module Analog output operations start on the rising edge of the external DAC clock signal Using software specify the clock source as external The clock frequency is always equal to the frequency of the external DAC clock signal that you connect to the module Output Conversion Modes DT9832 Series modules support the following conversion modes Single value operations are the simplest to use but offer the least flexibility and efficiency Use software to specify the analog output channel that you want to update and the value to output from that channel For a single value operation you cannot specify a clock source trigger source or buffer Single value operations stop automatically when finished you cannot stop a single value operation Streaming analog output operations take full advantage of the capabilities of the DT9832 Series modules In this mode you can specify an output channel list clock source trigger source buffer and buffer wrap mode Two continuous analog output modes are supported streaming and waveform generation mode These modes are described in the following subsections 87 Chapter 5 88 Note that in waveform mode each channel in the output channel list must write the same number of values use the same output clock refer to page 87 and use the same output trigger refer to page 86 Streaming Analog Output Use streaming analog output mode if you want t
23. continuous scan mode using a channel list with three entries channel 0 channel 1 and channel 2 In this example analog input data is acquired simultaneously on all channels on each clock pulse of the input sample clock Data is acquired continuously Principles of Operation Chan 2 Chan 2 Chan 2 Chan 2 Chan 1 Chan 1 Chan 1 Chan 1 Chan 0 Chan 0 Chan 0 Chan 0 i I Input mie Sample Clock Data is acquired continuously Initial trigger event occurs Figure 21 Continuous Scan Mode Using software you can stop a continuous scan by performing either an orderly stop or an abrupt stop In an orderly stop the module finishes acquiring the current buffer stops all subsequent acquisition and transfers the acquired data to host memory any subsequent triggers are ignored In an abrupt stop the module stops acquiring samples immediately the current buffer is not completely filled it is returned to the application only partially filled and any subsequent triggers are ignored Input Triggers A trigger is an event that occurs based on a specified set of conditions Acquisition starts when the module detects the initial trigger event and stops when all the allocated buffer have been filled or when you stop the operation 81 Chapter 5 82 The DT9832 Series module supports the following trigger sources e Software trigger A software trigger event occurs when you start the analog input operatio
24. decoder 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 the quadrature decoders if you specify them this way 77 Chapter 5 78 Input Ranges The DT9832 Series modules provide an input range of 10 V Use software to specify the range as 10 V You do not need to and cannot set gain values for DT9832 Series modules The gain is preset at 1 Input Sample Clock Sources DT9832 Series modules allow you to use one of the following clock sources to pace analog input operations e Internal A D clock Using software specify the clock source as internal and the clock frequency at which to pace the operation The minimum frequency supported is 0 01118 Samples s the maximum frequency supported is 1250 kSamples s for the DT9832 module or 2000 kSamples S for the D19832A module 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 External A D clock An external A D clock is useful when you want to pace acquisitions at rates not available with the inte
25. down buttons until the voltmeter reads 9 375 V 5 Inthe DAC Output Voltage box select 9 375 V 6 Adjustthe gain by entering values between 0 and 255 in the DAC 0 Gain edit box or by clicking the up down buttons until the voltmeter reads 9 375 V 7 Connectan external precision voltmeter to Analog Output 1 DAC Ch1 of the DT9832 Series module 8 Inthe DAC Output Voltage box select 9 375 V 9 Adjust the offset by entering values between 0 and 255 in the DAC 1 Offset edit box or by clicking the up down buttons until the voltmeter reads 9 375 V 10 In the DAC Output Voltage box select 9 375 V 11 Adjust the gain by entering values between 0 and 255 in the DAC 1 Gain edit box or by clicking the up down buttons until the voltmeter reads 9 375 V 141 Chapter 8 Note At any time you can click Restore Factory Settings to reset the D A calibration values to their original factory settings This process will undo any D A calibration settings Once you have finished this procedure the analog output circuitry is calibrated To close the DT9832 DT9836 Calibration Utility click the close box in the upper right corner of the window 142 Specifications 143 Appendix A 144 Table 22 lists the specifications for the A D subsystem on the DT9832 Series modules Table 22 A D Subsystem Specifications Feature Specifications Number of analog input channels DT9832 4 single
26. ended simultaneous 2 single ended simultaneous DT9832A Resolution 16 bits Range 10V Throughput per channel See Table 23 Signal bandwidth to 3 dB point DT9832 gt 6 25 MHz DT9832A gt 10 0 MHz Sample and hold Aperture uncertainty 200 ps typical Aperture delay 25 ns typical Aperture match 1 ns 500 ps typical Gain match x 0 015 Zero match 1 5 mV System accuracy to of FSR 0 01 Bipolar input range 10V Data encoding Offset binary Maximum input voltage without damage Power on 35 V Power off 20 V Input impedance 100 MQ 10 pF Input bias current 10 nA Integral nonlinearity lt 2LSB Specifications Table 22 A D Subsystem Specifications cont Feature Specifications Differential nonlinearity lt 1LSB Inherent quantizing error 1 2 LSB Drift Zero 20 uV C Gain 20 ppm of FSR C ESD protection Arc 8 kV Contact A kV Effective Number of Bits ENOBs 14 bits typical 10 kHz input Spurious Free Dynamic Range SFDR 86 dB typical A D Subsystem Throughput Due to limitations of the USB bus the maximum achievable sample rate throughput of the modules depends upon the number of channels sampled Table 23 lists the approximate throughput for each module based on the number of channels in the channel list The maximum allowable sample rate for a given number of channels is 5 450 000 Number of Chann
27. for NET Class Library software Troubleshooting information is also provided Note For information on checking system requirements installing the software and viewing the documentation refer to the README file on the OMNI CD 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 Note This manual refers to the DT9832 and DT9832A modules collectively as the DT9832 Series except where their features differ The DT9832 Series module is available either installed in a metal BNC connection box or as a board level OEM version that you can install in your own custom application If the information in this manual applies to both versions of the DT9832 Series module the manual uses the product name DT9832 Series module Otherwise the specific product name is used 11 About this Manual 12 Intended Audience This document is intended for engineers scientists technicians or others responsible for installing setting up using and or programming DT9832 Series modules for data acquisition operations It is assumed that you are familiar with the requirements of your application It is also assumed that you have some familiarity with data acquisition principles that you understand your application and that you a
28. is the number of counts divided by the period of the Counter 0 Gate input signal Counter 1 Out D 11 o 8 Counter 0 Gate 5 D 28 Counter 0 Clock p 8 Ho Signal Source Digital Ground D sub Pins Figure 14 Connecting Counter Timer Signals to the D sub Pins for a Frequency Measurement Operation Using an External Pulse Period Pulse Width Measurement Figure 15 shows how to connect counter timer signals to the CT Enc In Analog Output Clk Trig D sub pins to perform a period pulse width measurement operation on counter timer 0 You specify the active pulse high or low in software The pulse width is the percentage of the total pulse period that is active Refer to Chapter 5 for more information about pulse periods and pulse widths 53 Chapter 3 a Counter 0 Clock 656 o o Signal Source Digital Ground D sub Pins Figure 15 Connecting Counter Timer Signals to the D sub Pins for a Period Pulse Width Measurement Operation Edge to Edge Measurement Figure 16 shows how to connect counter timer signals to the CT Enc In Analog Output Clk Trig D sub pins to perform an edge to edge measurement operation using two signal sources The counter measures the number of counts between the start edge in this case a rising edge on the Counter 0 Clock signal and the stop edge in this case a falling edge on the Counter 0 Ga
29. resistors 12 MA 2 0 V minimum 0 8 V maximum 12 mA maximum 12 mA maximum Interrupt on change Yes on first 8 bits Clocked with sample clock Yes Software I O selectable No 149 Appendix A Table 26 lists the specifications for the C T and quadrature decoder subsystems on the DT9832 Series modules Table 26 C T and Quadrature Decoder Subsystem Specifications Feature Specifications Number of channels C T Quadrature decoder 2 3 High input voltage Low input voltage Low input current Resolution 32 bits per channel Minimum pulse width minimum 55 5 ns amount of time it takes a C T to recognize an input pulse Logic family LVTTL 5 V tolerant Inputs Input logic load 1 LVTTL 2 0 V minimum 0 8 V maximum 0 4 mA maximum Outputs Fan out High output Low output High output current Low output current 12 MA 2 0 V minimum 0 8 V maximum 12 mA maximum 12 mA maximum Internal reference clock rate 48 MHz External clock rate 24 MHz maximum 150 Specifications Table 27 lists the specifications for the external A D and D A triggers on the DT9832 Series modules Table 27 External A D and D A Trigger Specifications Feature Specifications Trigger sources Internal Software initiated External Software selectable Input type Edge sensitive Logic family LVTTL 5 V to
30. subsystem was configured but is not complete 20 5004 0 Operation not complete 30 5003 0 Operation not complete 104 Principles of Operation Table 6 An Example of Performing a Continuous Edge to Edge Measurement Operation as Part of the Analog Input Channel List cont Counter Status of Continuous Timer Edge to Edge Measurement Time A D Value Value Mode 40 5002 12373 Operation complete 50 5000 0 Next operation started but is not complete 60 5002 0 Operation not complete 70 5004 0 Operation not complete 80 5003 12403 Operation complete 90 5002 0 Next operation started but is not complete To select continuous edge to edge measurement mode use software to specify the counter timer mode as continuous measure the C T clock source as internal and the start edge type Rate Generation Use rate generation mode to generate a continuous pulse output signal from the Counter n Out line 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 analog output or other counter timer operations The pulse output operation is enabled whenever the Counter n Gate signal is at the specified level While the pulse output operation is enabled the counter outputs a pulse of the specified type and frequency continuously As soon as the
31. the Quick DataAcq application choose Pulse Generator from the Control menu Select the appropriate DT9832 Series module from the Board list box Select either Continuous to output a continuous pulse stream or One Shot to output one pulse 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 Under Pulse Width enter a percentage or use the slider to select a percentage for the pulse width The percentage determines the duty cycle of the pulse Click Start to generate the pulse s The application displays the results both in text and graphical form Click Stop to stop a continuous pulse output operation One shot pulse output operations stop automatically Part 2 Using Your Module gt Principles of Operation Analog Input Features sus kee EDER REEL E EE 73 Analog Output Features ecciesia ea 84 Digital 170 Features ccce ere E 9 n 92 Counter Timer Features SCENE EEN EEN A 95 Quadrature Decoder Features 109 71 Chapter 5 Figure 20 shows a block diagram of the DT9832 Series modules Synchronous Simultaneous A Ds Analog Isolated
32. 0 EP356 174 connector J2 pin assignments EP353 172 EP356 45 176 Index OEM version 159 connector J3 pin assignments OEM version 161 connector pin assignments BNC connection box 165 connector TB1 pin assignments OEM version 164 continuous analog input post trigger 115 scan operations 79 continuous analog output 115 streaming 88 waveform generation mode 89 continuous counter timer 115 continuous digital I O 93 115 continuous edge to edge measurement mode 104 124 wiring 55 Control Panel applet 94 131 conventions used 13 conversion modes continuous analog input scan mode 79 digital I O 93 single value analog input 79 single value analog output 87 streaming analog output 87 conversion rate 80 counter timer channels 95 118 clock sources 96 123 clock falling edge type 125 clock rising edge type 125 continuous edge to edge measurement mode 124 edge to edge measurement mode 124 event counting 124 gate types 97 gate falling edge type 125 gate rising edge type 125 high edge gate type 125 high level gate type 124 high to low output pulse 124 in analog input channel list 75 internal gate type 124 low edge gate type 125 low level gate type 124 low to high output pulse 124 one shot mode 124 rate generation mode 124 repetitive one shot mode 124 subsystem specifications 150 up down counting 124 variable pulse width 124 wiring edge to edge signals 54 55 wiring event counting signals 50 wiring frequency measuremen
33. 1 25 or MaxFrequency 2 0 MHz 500 kHz 0 0 24 MHz 24 MHz Minimum Frequency 0 0224 0 0224 MinFrequency 0 0 0 0 Hz Hz a The DT9832 supports a maximum throughput frequency of 1 25 MHz the DT9832A supports a maximum throughput frequency of 2 0 MHz 123 Chapter 6 124 Counter Timers Table 20 DT9832 Series Counter Timer Options DT9832 Series AID D A DIN DOUT C T QUAD Cascading Support SupportsCascading Event Count Mode Support SupportsCount Yes Generate Rate Mode Support SupportsRateGenerate Yes One Shot Mode Support SupportsOneShot Yes Repetitive One Shot Mode Support SupportsOneShotRepeat Yes Up Down Counting Mode Support SupportsUpDown Yes Edge to Edge Measurement Mode Support SupportsMeasure Yes Continuous Edge to Edge Measurement Mode Support SupportsContinuousMeasure Yes 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 Yes Low Level Gate Type Support SupportsGateLowLevel Yes Supported Device Driver Capabilities Table 20 DT9832 Series Counter Timer Options cont DT9832 Series High Edge Gate Type Support SupportsGateHighEdge AID
34. 10 Counter 1 Clock 29 Digital Ground 11 Counter 1 Out 30 Counter 1 Gate 12 Quad Dec 0 A 31 Digital Ground 13 Quad 0 Index 32 Quad Dec 0 B 14 Quad Dec 1 A 33 Digital Ground 15 Quad 1 Index 34 Quad Dec 1 B 16 Quad Dec 2 A 35 Digital Ground 17 Quad 2 Index 36 Quad Dec 2 B 18 Digital Ground 37 Digital Ground 19 Chassis Ground a Reserved on DT9832A 02 0 OEM DT9832A 02 0 BNC DT9832 04 0 OEM and DT9832 04 0 BNC modules Connector Pin Assignments EP355 Screw Terminal Assignments The EP355 screw terminal panel is used with the OEM version of the DT9832 Series module on connector J3 of the module The screw terminal assignments correspond to the pin assignments on the J3 connector on the OEM version of the DT9832 Series module itself Refer to Table 34 on page 161 using the pin numbers to reference the screw terminals on the EP355 177 Appendix B 178 Ground Power and Isolation Secondary Power Connector VC drak dE EE 180 Ground Power and Isolation Connections 181 179 Appendix C Secondary Power Connector The OEM version of the DT9832 Series module provides a secondary power connector which is useful for embedded applications The location of the connector is shown in Figure 33 Secondary Power Connector TB1 Primary J Power O O RENNER Connector 321 e OEM Version of LED DT9832 Series Module USB Connector
35. 3 33 Digital Output 13 174 Connector Pin Assignments Table 40 EP356 Connector J1 Pin Assignments cont J1 Pin J1 Pin Assignment Signal Description Assignment Signal Description 15 Digital Input 14 34 Digital Output 14 16 Digital Input 15 35 Digital Output 15 17 Digital Ground 36 Reserved 18 Digital Ground 37 Digital Ground 19 Chassis Ground Connector J2 Use connector J2 on the EP356 accessory panel to attach analog output counter timer trigger and clock signals You can access the pins on the connector J1 either by using the EP333 cable and STP37 screw terminal panel available from Data Translation or by building your own cable panel To build your own cable panel refer to Appendix A for information about the required mating connectors Table 41 lists pin assignments for connector J2 on the EP356 panel 175 Appendix B 176 Table 41 EP356 Connector J2 Pin Assignments J2 Pin J2 Pin Assignment Signal Description Assignment Signal Description 1 Analog Output 0 20 Analog Output 0 Return 2 Analog Output 1 21 Analog Output 1 Return 3 Reserved 22 Reserved 4 45V 23 Digital Ground 5 Digital Ground 24 Digital Ground 6 External DAC Clock 25 External DAC Trigger 7 External ADC Clock 26 External ADC Trigger 8 Counter 0 Clock 27 Digital Ground 9 Counter 0 Out 28 Counter 0 Gate
36. 43 Chapter 3 Digital In Out Connector The Digital In Out connector allows you to access the digital I O signals Table 2 lists the pin assignments for the Digital In Out connector on the BNC connection box Table 2 Digital In Out Connector Pin Assignments Pin Signal Description Pin Signal Description 1 Digital Input 0 20 Digital Output 0 2 Digital Input 1 21 Digital Output 1 3 Digital Input 2 22 Digital Output 2 4 Digital Input 3 23 Digital Output 3 5 Digital Input 4 24 Digital Output 4 6 Digital Input 5 25 Digital Output 5 7 Digital Input 6 26 Digital Output 6 8 Digital Input 7 27 Digital Output 7 9 Digital Input 8 28 Digital Output 8 10 Digital Input 9 29 Digital Output 9 11 Digital Input 10 30 Digital Output 10 12 Digital Input 11 31 Digital Output 11 13 Digital Input 12 32 Digital Output 12 14 Digital Input 13 33 Digital Output 13 15 Digital Input 14 34 Digital Output 14 16 Digital Input 15 35 Digital Output 15 17 Digital Ground 36 Reserved 18 Digital Ground 37 Digital Ground 19 No Connect Wiring Signals to the BNC Connection Box CT Enc In Analog Out CIk Trig Connector The CT Enc In Analog Out Clk Trig connector lets you access the counter timer quadrature decoder analog output external clock and external trigger signals Table 3 lists the pin assignments for this connector on the BNC connection box Table 3 CT Enc In Analog Out CI
37. 92 positive threshold trigger 122 post trigger acquisition mode 115 power 30 180 181 power specifications 153 power supply 30 preparing to wire signals 39 pre scale value 110 pulse output one shot 106 rate generation 105 repetitive one shot 107 testing 68 types 98 wiring 56 pulse width 98 103 wiring 53 Q quadrature decoder adding to the analog input channel list 76 features 109 specifications 150 wiring 58 Quick DataAcq application 21 installing 61 running 61 quickDAQ 21 R ranges analog input 78 analog output 86 number of 119 rate generation 105 124 recommendations for wiring 39 related documents 14 repetitive one shot pulse output 107 124 resolution analog input 73 analog output 84 available 120 number of 120 retrigger clock frequency 117 returning boards to the factory 133 RMA 133 S sample clock sources 78 sample rate 80 scaling mode 110 scan operations analog input 79 screw terminal assignments EP355 177 SDK 22 simultaneous clocking 123 simultaneous sample and hold support 118 simultaneous start list 115 single buffer wrap mode 116 single channel analog input 74 analog output 85 single ended channels 118 number of 118 single value operations 115 analog input 79 analog output 87 digital I O 93 software trigger 82 86 122 189 Index 190 specifications 143 analog input 144 analog output 147 clocks 152 counter timer 150 digital I O 149 environmental 153 phy
38. Cf or Visual Basic NET this manual describes how to use the DT Open Layers for NET Class Library 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 DataAcq SDK to access the capabilities of Data Translation data acquisition devices This manual is included on the Data Acquisition OMNI CD 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 data acquisition devices in Microsoft Visual Basic or Visual C LV Link Online Help This help file describes how to use LV Link with the Lab VIEW graphical programming language to access the capabilities of Data Translation data acquisition devices About this Manual DAQ Adaptor for MATLAB UM 22024 This document describes how to use Data Translation s DAQ Adaptor to provide an interface between the MATLAB Data Acquisition subsystem from The MathWorks and Data Translation s DT Open Layers architecture Microsoft Windows XP Windows Vista or Windows 7 documentation e USB web site http www usb org Where To Get Help Should you run into problems installing or using a DT9832 Series module our Technical Support Department is available to provide t
39. DATA TRANSLATION UM 22058 L DT9832 Series User s Manual Eleventh Edition December 2009 Data Translation Inc 100 Locke Drive Marlboro MA 01752 1192 800 525 8528 www datatranslation com Fax 508 481 8620 E mail info datx com Copyright O 2006 2009 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 ER 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 amp is a registered trademark of Data Translation Inc DT Open Layers DT Open Layers for NET Class Library DataAcq 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
40. OEM version of the DT9832 Series module and for information about the connector pin assignments e EP356 This accessory panel plugs into connector J3 of the OEM version of the DT9832 Series module It provides two 37 pin D sub connectors Use connector J1 of the EP356 to attach digital I O signals and use connector J2 of the EP356 to attach analog output counter timer trigger and clock signals Refer to page 173 for more information about attaching the EP356 to the OEM version of the DT9832 Series module and for information about the connector pin assignments 163 Appendix B OEM TB1 Connector Table 35 lists the pin assignments for connector TB1 on the OEM version of the DT9832 Series modules Table 35 Pin Assignments for Connector TB1 on the OEM Version of Module Pin e Signal Description 1 5 V 2 Ground 3 Shield Chassis Ground 164 Connector Pin Assignments BNC Box Connectors This section describes the pin assignments for the D sub connectors on the BNC connection box Note that the BNC connectors are labeled on the box Digital UO Connector Figure 26 shows the orientation of the pins on the Digital In Out connector on the BNC connection box Pin 1 ip Pin 20 0000000000000000 000000000000000 O Pin 19 AO rin 37 Figure 26 Orientation of the Digital In Out Connector on the BNC Connection Box Table 36 lists the pin assignments for the Digital In
41. Out connector on the BNC connection box 165 Appendix B 166 Table 36 BNC Connection Box Digital In Out Connector Pin Assignments SE Signal Description De Signal Description 1 Digital Input 0 20 Digital Output 0 2 Digital Input 1 21 Digital Output 1 3 Digital Input 2 22 Digital Output 2 4 Digital Input 3 23 Digital Output 3 5 Digital Input 4 24 Digital Output 4 6 Digital Input 5 25 Digital Output 5 7 Digital Input 6 26 Digital Output 6 8 Digital Input 7 27 Digital Output 7 9 Digital Input 8 28 Digital Output 8 10 Digital Input 9 29 Digital Output 9 11 Digital Input 10 30 Digital Output 10 12 Digital Input 11 31 Digital Output 11 13 Digital Input 12 32 Digital Output 12 14 Digital Input 13 33 Digital Output 13 15 Digital Input 14 34 Digital Output 14 16 Digital Input 15 35 Digital Output 15 17 Digital Ground 36 Reserved 18 Digital Ground 37 Digital Ground 19 No Connect Connector Pin Assignments CT Enc In Analog Out CIk Trig Connector Figure 27 shows the orientation of the pins on the CT Enc In Analog Out Clk Trig connector on the BNC connection box Pin 1 gt Pin 20 0000000000000000 000000000000000 O Pin 19 LX pin 37 Figure 27 Orientation of the CT Enc In Analog Out CIk Trig Connector on the BNC Connection Box Table 37 lists the pin assignments for the CT Enc In Analog Out Clk Trig connector
42. age 86 Output triggers described on page 86 Output clocks described on page 87 Data format and transfer described on page 90 Error conditions described on page 91 Output Resolution Input resolution is fixed at 16 bits you cannot specify the resolution in software Analog Output Channels DT9832 04 2 and DT9832A 02 2 modules support two DC level analog output channels DACO and DAC1 Refer to Chapter 3 starting on page 37 for information about how to wire analog output signals to the module Note An extra analog output D A subsystem is provided on all DT9832 Series modules for controlling the analog threshold trigger The threshold trigger DAC is the highest numbered D A subsystem supported by your module Refer to page 81 for more information on analog threshold triggering 84 Principles of Operation The DACs are deglitched to prevent noise from interfering with the output signal They power up to a value of 0 V 10 mV Unplugging the module resets the DACS to 0 V The DT9832 Series modules can output data to a single DAC or sequentially to one or more DACs and or the digital output port The following subsections describe how to specify the DACs port Specifying a Single Analog Output Channel The simplest way to output data to a single DAC is to specify the channel for a single value analog output operation using software refer to page 87 for more information about single value operations You
43. an Department 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 R glement sur le brouillage radio lectrique dict par le Minist re des Communications du Canada Table of Contents About this Manual 11 Intended Audience LL 12 How this Manual is Organized 12 Conventions Used in this Manual 13 Related Information 14 Where To Get Help 15 Chapter 1 Overview i 17 DT9832 Series Hardware Features 18 Supported Software sss 21 ACCOeSSOFIGS Lu uses bee beu Sd t p RERUM E EA PERS 23 Getting Started Procedure 24 Part 1 Getting Started 25 Chapter 2 Setting Up and Installing the Module 27 Unpacking iem RR LR eR RES ese bees DR 29 Applying Power to the Module 30 Attaching Modules to the Computer 31 Connecting Directly to the USB Ports 32 Connecting to an Expansion Hub 33 Configuring the DT9832 Series Device Driver 36 Chapter 3 Wiring Signals to the BNC Connection Box 37 Preparing to Wire Signals 00 eee e eee 39 Wiring Recommendations 39 High Performance Considerations 40 Contents Wiring to the BNC Box
44. are 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 a DT9832 Series module using Visual Studio 2003 or Visual Studio 2005 the class library complies with the DT Open Layers standard 21 Chapter 1 22 DataAcq SDK Use the Data Acq SDK if you want to use Visual Studio 6 0 and Microsoft C or C to develop your own application software for a DT9832 Series module using Windows XP Windows Vista or Windows 7 the DataAcq SDK complies with the DT Open Layers standard DTx EZ DTx EZ provides ActiveX controls which allow you to access the capabilities of the DT9832 Series modules using Microsoft Visual Basic or Visual C DTx EZ complies with the DT Open Layers standard DAQ Adaptor for MATLAB Data Translation s DAQ Adaptor provides an interface between the MATLAB Data Acquisition DAQ subsystem from The MathWorks and Data Translation s DT Open Layers architecture LV Link An evaluation version of this software 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 Data Translation modules Refer to the Data Translation web site www datatranslation com for information about selecting the right software package for your needs Overview Acc
45. ate the analog input circuitry either automatically or manually described on page 138 or the analog output circuitry of the DT9832 Series module described on page 141 137 Chapter 8 Calibrating the Analog Input Subsystem This section describes how to use the DT9832 DT9836 Calibration Utility to calibrate the analog input subsystem of a DT9832 Series module The DT9832 Series module has separate calibration for each A D input channel You can choose to calibrate either an individual channel or all channels on the board Connecting a Precision Voltage Source To calibrate the analog input circuitry you need to connect an external 9 3750 V precision voltage source to the DT9832 Series module Connect the precision voltage source to the first channel you want to calibrate for example Analog In 0 AD Cho Using the Auto Calibration Procedure Auto calibration is the easiest to use and is the recommended calibration method To auto calibrate the analog input subsystem do the following 1 Select the A D Calibration tab of the DT9832 DT9836 Calibration Utility 2 Choose either a single channel or all channels from the Type of Calibration drop down list box in the Automatic Calibration area 3 Set the voltage supply on your selected channel to 0 000V 4 Click the Auto Calibration Start button A message appears notifying you to verify that 0 000 V is applied to the channel 138 Calibration 5 Ver
46. ation Support SupportsSingleValue Yes Yes Yes Yes Yes Yes Simultaneous Single Value Output Operations SupportsSetSingleValues Continuous Operation Support SupportsContinuous Yes Yes Yes Yes Yes Yes Continuous Operation until Trigger SupportsContinuousPreTrigger Continuous Operation before amp after Trigger SupportsContinuousPrePostTrigger Waveform Operations Using FIFO Only SupportsWaveformModeOnly Simultaneous Start List Support SupportsSimultaneousStart Yes Yes Supports Programmable Synchronization Modes SupportsSynchronization Synchronization Modes SynchronizationMode Interrupt Support SupportsInterruptOnChange Yes Output FIFO Size FifoSize 128K Auto Calibrate Support SupportsAutoCalibrate a The DIN subsystem supports continuous mode by allowing you to read the digital input port all 16 digital input lines using the analog input channel list b The DOUT subsystem supports continuous mode by allowing you to output data from the digital output port all 16 digital output lines using the output channel list 115 Chapter 6 116 C d The C T subsystem supports continuous mode by allowing you to read the value of one or more of the 2 general purpose counter timer channels using the analog input channel list The QUAD subsystem supports continuous mode by allowing you to read the value of one or more of the 3 quadrature decod
47. can also specify a single DAC using the output channel list described in the next section Specifying Multiple Analog Output Channels and or the Digital Output Port You can output data to one or more DACs and or the digital output port using the output channel list This feature is particularly useful when you want to correlate the timing of analog and digital output events Using software specify the data flow mode as Continuous for the D A subsystem described on page 87 and specify the output channels you want to update where 0 is DACO 1 is DACI and 2 is the digital output port You can enter a maximum of 3 entries in the output channel list and the channels must be in order Note that you can skip a channel in the list however if you do not want to update it For example if you want to update only DAC1 and the digital output port specify channels 1 and 2 in the output channel list If you want to update all the DACs and the digital output ports specify channels 0 1 and 2 in the output channel list The channels 85 Chapter 5 are output in order from the first entry in the list to the last entry in the list Note The digital output port is treated like any other channel in the output channel list therefore all the clocking triggering and conversion modes supported for analog output channels are supported for the digital output port if you specify the digital output port in the output channel list Out
48. cer connections see the instructions in Chapter 3 The module 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 see the instructions in Chapter 3 130 Troubleshooting Table 21 Troubleshooting Problems cont Symptom Possible Cause Possible Solution Data appears to The DT9832 Series DT9832 Series modules are calibrated at be invalid module is out of the factory If you want to readjust the cont calibration calibration of the analog input or analog output circuitry refer to Chapter 8 starting on page 135 USB 2 0 is not Your operating Ensure that you load the appropriate recognized system does not have Windows Service Pack version 2 for the appropriate Windows XP If you are unsure of Service Pack whether you are using USB 2 0 or USB installed 1 1 run the Open Layers Control Panel applet described in Chapter 2 Standby mode is For some PCs you may need to disable enabled on your PC standby mode on your system for proper USB 2 0 operation Consult Microsoft for more information 131 Chapter 7 Technical Support If you have difficulty using a DT9832 Series module Data Translation s Technical Support Department is available to provide technical assistance To request technical support go t
49. damaged Contact Data Translation for technical support refer to page 132 Intermittent operation Loose connections or vibrations exist Check your wiring and tighten any loose connections or cushion vibration sources see the instructions in Chapter 3 The module is overheating Check environmental and ambient temperature consult the module s specifications on page 153 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 see the instructions in Chapter 3 129 Chapter 7 Table 21 Troubleshooting Problems cont Symptom Possible Cause Possible Solution Device failure error reported The DT9832 Series module cannot communicate with the Microsoft bus driver or a problem with the bus driver exists The DT9832 Series module was removed while an operation was being performed Check your cabling and wiring and tighten any loose connections see the instructions in Chapter 3 Ensure that your DT9832 Series module is properly connected see the instructions in Chapter 2 Data appears to be invalid An open connection exists Check your wiring and fix any open connections see the instructions in Chapter 3 A transducer is not connected to the channel being read Check the transdu
50. decoders through the C T subsystem C T subsystem 2 corresponds to quadrature decoder 0 C T subsystem 3 corresponds to quadrature decoder 1 and C T subsystem 4 corresponds to quadrature decoder 2 Using software you can also specify one or more of the quadrature decoders in the analog input channel list You need two channel list entries to read a 32 bit quadrature decoder value The first entry stores the lower 16 bit word and the second entry stores the upper 16 bit word Refer to page 76 for more information about using quadrature decoders in the channel list Each quadrature decoder supports A B and Index inputs and is used to interface with a quadrature encoder sensor The A and B input relationships are used to increment or decrement the positional count the Index input can be used to zero out the positional count Figure 24 shows an example of a quadrature decoder mode In this case the A input leads the B input up counting with a 90 degree Index 109 Chapter 5 Sample Cock q e Ey EGRET LEET EIERE Encoder A Input Encoder B Input Lee Encoder Index Input Figure 24 Example Quadrature Decoder Mode Using software you can specify the following parameters for a quadrature decoder operation The pre scale value that is used to filter the onboard clock Using a pre scale value can remove ringing edges and unwanted noise for more accurate data e The
51. dule Typically this is a 100 ohm resistor in series with a 1000 pF NPO capacitor to common At higher frequencies the cable will see the 100 ohms Note the component tolerances and the effect they will have on simultaneous sampling across all eight channels Wiring to the BNC Box The BNC connection box contains both BNC connectors and 37 pin D sub connectors An example of a BNC connection box is shown in Figure 5 40 Wiring Signals to the BNC Connection Box DAC Cho DAC Clock 9 Q EI DAC Ch1 AD Clock o E JQ lt DAC Trig a E O Oo AD Cho ADChi ADCh2 ADCh3 Figure 5 DT9832 04 2 BNC Version of the BNC Connection Box You can wire signals to the BNC connection box as follows Refer to Appendix A starting on page 143 for information about the required D sub mating connectors if you choose to use the D sub connectors e Analog input signals You can wire analog input signals using the BNC connectors labelled AD Ch0 to AD Ch3 Analog output signals You can wire analog output signals if your DT9832 model supports them in one of the following ways Using the BNC connectors labelled DAC Cho and DAC Chi Using the appropriate pins on the CT Enc In Analog Out Clk Trig connector You can access the pins by building your own cable panel Refer to page 45 for co
52. e 31 Connecting the EP356 Panel to the OEM Module Figure 32 shows the orientation of the pins for connectors J1 and J2 on the EP356 panel Pin 20 Pin 37 OOOOOOOOOOOOOOOOOO OOOOOOOOOOOOOOOOOO Pin 1 Pin 19 Figure 32 Orientation of the Pins for Connectors J1 and J2 of the EP356 Panel 173 Appendix B Connector J1 Use connector J1 on the EP356 accessory panel to attach digital I O signals You can access the pins on the connector J1 either by using the EP333 cable and STP37 screw terminal panel available from Data Translation or by building your own cable panel To build your own cable panel refer to Appendix A for information about the required mating connectors Table 40 lists the pin assignments for connector J1 on the EP356 panel Table 40 EP356 Connector J1 Pin Assignments J1 Pin J1 Pin Assignment Signal Description Assignment Signal Description 1 Digital Input 0 20 Digital Output 0 2 Digital Input 1 21 Digital Output 1 3 Digital Input 2 22 Digital Output 2 4 Digital Input 3 23 Digital Output 3 5 Digital Input 4 24 Digital Output 4 6 Digital Input 5 25 Digital Output 5 7 Digital Input 6 26 Digital Output 6 8 Digital Input 7 27 Digital Output 7 9 Digital Input 8 28 Digital Output 8 10 Digital Input 9 29 Digital Output 9 11 Digital Input 10 30 Digital Output 10 12 Digital Input 11 31 Digital Output 11 13 Digital Input 12 32 Digital Output 12 14 Digital Input 1
53. e to specify the following parameters e Set the data flow to Continuous Set WrapSingleBuffer to True to use a single buffer Refer to the following section for more information on this buffer wrap mode Set the trigger source as any of the supported trigger sources refer to page 86 Data Format and Transfer Data from the host computer must use offset binary data encoding for analog output signals where 0000 represents 40 V and FFFFh represents 10 V Using software specify the data encoding as binary Before you begin writing data to the output channels you must allocate and fill buffers with the appropriate data An event is returned whenever a buffer is transferred to the module This allows you to reuse that buffer and refill it with additional output data Note If WrapSingleBuffer is False we recommend that you allocate a minimum of two buffers that are even multiples of 256 samples If WrapSingleBuffer is True we recommend that you allocate a minimum of one buffer that is an even multiple of 256 samples In streaming mode data is written from multiple output buffers continuously when no more buffers of data are available the operation stops The data is gap free If the size of your buffers is less than 128K and you stop the analog output operation the operation stops after the current buffer and the next buffer have been output 90 Principles of Operation If a single buffer is used WrapSingl
54. eBuffer is True data is written from a single output buffer continuously when all the data in the buffer has been output the module returns to the first location of the buffer and continues outputting the data This process continues indefinitely until you stop it Note Ifa single buffer is used and the allocated output buffer is equal to or less than the size of the FIFO on the module the data is written once to the module The module recycles the data allowing you to output the same pattern continuously without any further CPU or USB bus activity Error Conditions The DT9832 Series module reports any underrun errors by sending an underrun event to the application This event indicates that data buffers are not being sent from the host to the module fast enough and so the D A converter ran out of data To avoid this error try one or more of the following Reduce the clock rate of the D A e Increase the size of the buffers e Increase the number of buffers Close any other applications that are running Runthe program on a faster computer 91 Chapter 5 Digital I O Features This section describes the following features of digital I O operations Digital I O lines described below Operation modes described on page 93 Digital I O Lines DT9832 Series modules support one digital input port consisting of 16 digital input lines lines 0 to 15 and one digital output port consisting of 16 digital ou
55. echnical assistance Refer to Chapter 7 starting on page 127 for information on how to contact the Technical Support Department If you are outside the U S or Canada call your local distributor whose number is listed on Data Translation s web site www datatranslation com 15 About this Manual 16 Overview DT9832 Series Hardware Features 18 Supported Sala 21 ACCESSES EE Ra aq rp RECEN Ex RR RP Iu 23 Getting Started Procedure cere ree pex d 24 17 Chapter 1 18 DT9832 Series Hardware Features The DT9832 Series is a family of high performance multifunction data acquisition modules for the USB Ver 2 0 or Ver 1 1 bus The key hardware features of the DT9832 Series modules are as follows Available either installed in a metal BNC connection box or as a board level OEM version that you can install in your own custom application Simultaneous operation of analog input analog output digital I O and counter timer subsystems Analog input subsystem 16 bit A D converters Throughput rate up to 1250 kSamples s DT9832 or 2000 kSamples s DT9832A Either 4 DT9832 or 2 DT9832A single ended separate simultaneous analog input channels Input range of 10 V 13 or 15 location channel list You can read the digital inputs the two 32 bit counters and the three 32 bit quadrature decoders using the A D subsystem and the A D clock This synchronizes digital counter and quadrature decod
56. ector J2 Connector J1 Figure 29 shows the orientation of the pins for connector J1 on the EP353 panel Pin 2 Pin 26 EE OOOOOOOOOOOO Pin 1 Pin 25 Figure 29 Orientation of the Pins for Connectors J1 on the EP353 Panel 169 Appendix B 170 You can use connector J1 and an AC1315 cable to attach a 5B Series signal conditioning backplane to the EP353 accessory panel Table 38 lists the pin assignments for connector J1 on the EP353 accessory panel Table 38 EP353 Connector J1 Pin Assignments J1 Pin J1 Pin Assignment Signal Description Assignment Signal Description 1 Analog Input O 2 Reserved 3 Analog Ground 4 Reserved 5 Analog Input 1 6 Analog Ground 7 Analog Input 28 8 Reserved 9 Analog Ground 10 Reserved 11 Analog Input 32 12 Analog Ground 13 Reserved 14 Reserved 15 Analog Ground 16 Reserved 17 Reserved 18 Analog Ground 19 Reserved 20 Reserved 21 Analog Ground 22 Reserved 23 Reserved 24 Analog Ground 25 Reserved 26 Reserved a Reserved on DT9832A Series modules Connector Pin Assignments Connector J2 Use EP353 connector J2 to attach analog input signals to the EP353 accessory panel Figure 30 shows the orientation of the pins for connector J2 on the EP353 panel Pin 1 Pin 19 000000000000000000 000000000000000000 Pin 20 Pin 37 Figure 30 Orientation of the Pins for Connectors J2 on the EP353 Panel Y
57. eight digital output lines 0 to FF in the Hex text box Click Send The values of the lower eight digital output lines are output appropriately Verifying the Operation of a Module Testing Frequency Measurement To verify that the module can perform a frequency measurement operation do the following 1 Wire an external clock source to counter timer 0 on the DT9832 Series module Refer to page 53 for an example of how to connect an external clock Note The Quick DataAcq application works only with counter timer 0 2 Inthe Quick DataAcq application choose Measure Frequency from the Acquisition menu 3 Select the appropriate DT9832 Series module from the Board list box 4 Inthe Count Duration text box enter the number of seconds during which events will be counted 5 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 6 Click Stop to stop the frequency measurement operation 67 Chapter 4 68 Testing Pulse Output To verify that the module can perform a pulse output operation perform the following steps 1 Connect a scope to counter timer 0 on the DT9832 Series module 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 In
58. el gate type 124 187 Index 188 LV Link 22 M MaxDifferentialChannels 118 MaxExtClockDivider 123 MaxFrequency 123 MaxMultiScanCount 117 MaxRetriggerFreq 117 MaxSingleEndedChannels 118 Measure Foundry 21 measuring frequency 101 measuring pulses 102 104 MinExtClockDivider 123 MinFrequency 123 MinRetriggerFreq 117 multiple channels analog input 74 analog output 85 N number of differential channels 118 gains 119 I O channels 118 resolutions 120 scans per trigger 117 single ended channels 118 voltage ranges 119 NumberOfChannels 118 NumberOfRanges 119 NumberOfResolutions 120 NumberOfSupportedGains 119 Nyquist Theorem 78 O OEM version connector J2 pin assignments 159 connector J3 pin assignments 161 connector TB1 pin assignments 164 one shot pulse output 106 124 online help 61 Open Layers Control Panel applet 94 131 operation modes continuous analog input scan mode 79 continuous digital I O 93 single value analog input 79 single value analog output 87 single value digital I O 93 waveform generation 89 output channel list 85 clock sources 87 pulses 124 ranges 86 outputting pulses 56 105 106 107 testing 68 P period 103 period measurement wiring 53 physical specifications 153 pin assignments Digital In Out connector 44 EP353 170 172 EP356 45 174 176 OEM version connector J2 159 OEM version connector J3 161 OEM version connector TB1 164 Index ports digital 1 0
59. els The sample clock is generated by dividing the 48 MHz internal clock by an even divisor The sample rate you set with DT Open Layers will be set to the nearest even divisor on the module If you set a rate that is too high you will receive an overrun error when you begin sampling 145 Appendix A Table 23 Maximum Achievable Throughput Channels DT9832 DT9832A 1 1 250 000 Hz 2 000 000 Hz 2 1 250 000 Hz 2 000 000 Hz 3 1 250 000 Hz 1 816 666 Hz 4 1 250 000 Hz 1 362 500 Hz 5 1 090 000 Hz 6 908 333 Hz 7 778 571 Hz 8 681 250 Hz 9 605 555 Hz 10 545 000 Hz 11 495 454 Hz 12 454 166 Hz 13 419 230 Hz 14 389 286 Hz B 15 363 333 Hz a If you use all 15 channels of the DT9832 30 bytes sample 1 25 MHz is transferred to the FIFO The stated USB limitation applies b If you use all 13 channels of the DT9832A 26 bytes sample 1 50 MHz is transferred to the FIFO The stated USB limitation applies 146 Specifications Table 24 lists the specifications for the D A subsystem on the DT9832 Series modules Table 24 D A Subsystem Specifications Feature Specifications Number of analog output channels 2 Simultaneous Resolution 16 bits Settling time to 0 01 of FSR 2 0 us 1 0 us 100 mV steps 5 0 us 2 0 us 10 V steps Throughput 500 kSamples s per channel Slew rate Glitch energy 10 V us 12 nV s t
60. ept commands b Click Next and or Finish again The LED on the module turns green Note Windows 7 finds the device automatically 5 Repeat these steps to attach another DT9832 Series module to the host computer if desired Connecting to an Expansion Hub Expansion hubs are powered by their own external power supply The practical number of DT9832 Series modules that you can connect to a single USB port depends on the throughput you want to achieve To connect multiple DT9832 Series modules to an expansion hub do the following 1 Make sure that you have attached a power supply to the module 2 Attach one end of the USB cable to the module and the other end of the USB cable to an expansion hub 3 Connect the power supply for the expansion hub to an external power supply 4 Connect the expansion hub to the USB port on the host computer using another USB cable The operating system automatically detects the USB module and starts the Found New Hardware wizard 33 Chapter 2 34 For Windows Vista a Click Locate and install driver software recommended The popup message Windows needs your permission to continue appears b Click Continue The Windows Security dialog box appears c Click Install this driver software anyway The LED on the module turns green For Windows XP a Click Next and or Finish as required in the wizard Once the firmware is loaded the wizard restarts to i
61. er inputs with the analog measurements The maximum sampling rate when using the channel list is 1250 kSamples s DT9832 or 2000 kSamples s DT9832A Analog output subsystem Two 16 bit D A converters if your module supports analog output channels Output rate up to 500 kSamples s per channel simultaneous Output range of 10 V Overview The DACs are deglitched to prevent noise from interfering with the output signal Output channel list You can cycle through the output channel list using continuous output mode or waveform generation mode Digital I O subsystem One digital input port consisting of 16 digital input lines You can program any of the first eight digital input lines to perform interrupt on change operations You can read the value of the digital input port using the analog input channel gain list One digital output port consisting of 16 digital output lines You can output the value of the digital output port using the output channel list Two 32 bit counter timer C T channels that perform event counting up down counting frequency measurement edge to edge measurement continuous edge to edge measurement continuous pulse output one shot and repetitive one shot operations You can read the value of one or more of the C T channels using the analog input channel list Three 32 bit quadrature decoders that can provide relative or absolute position of quadrature encoder inp
62. erifying the Operation of a Module Testing Single Value Analog Output Note DT9832 04 0 BNC DT9832 04 0 OEM DT9832A 02 0 BNC and DT9832A 02 0 OEM modules do not have analog outputs To verify that the module can output a single analog output value do the following 1 Connectanoscilloscope or voltmeter to analog output channel 0 on the module Refer to page 48 for an example of how to connect analog output signals 2 Inthe Quick DataAcq application choose Single Analog Output from the Control menu 3 Select the appropriate DT9832 Series module from the Board list box 4 Inthe Channel list box select analog output channel 0 5 Inthe Range list box select the output range of DACO The default is 10 V 6 Enter an output value or use the slider to select a value to output from DACO 7 ClickSend to output a single value from analog output channel 0 The application displays the output value both on the slider and in the text box 63 Chapter 4 Testing Continuous Analog Input 64 To verify that the module can perform a continuous analog input operation do the following 1 Connect known voltage sources such as the outputs of a function generator to analog input channels 0 and 1 on the DT9832 Series module 2 Inthe Quick DataAcq application choose Scope from the Acquisition menu 3 Select the DT9832 Series module from the Board list box 4 Inthe Sec Div list box select the
63. ers using the analog input channel list The first 8 digital input lines of the digital input port can generate an interrupt on change event You enable the interrupts on a line by line basis during driver configuration refer to page 36 for more information on configuring the driver If you are using the DataAcq SDK refer to page 93 for more information about determining which digital input lines changed state Buffering Table 9 DT9832 Series Buffering Options DT9832 Series A D D A DIN DOUT C T QUAD Buffer Support SupportsBuffering Yes Yes Single Buffer Wrap Mode Support SupportsWrapSingle Yes Inprocess Buffer Flush Support SupportsInProcessFlush Yes a Data from the DT9832 Series module is transferred to the host in 4 096 byte 2 048 sample segments If the application moves data from the buffer before the module has transferred 2 048 samples to the host the resulting buffer will contain 0 samples Your application program must deal with these situations when flushing an inprocess buffer Supported Device Driver Capabilities Triggered Scan Mode Table 10 DT9832 Series Triggered Scan Mode Options DT9832 Series AID D A DIN DOUT C T QUAD Triggered Scan Support SupportsTriggeredScan Maximum Number of CGL Scans per Trigger MaxMultiScanCount 1 0 0 0 0 0 Maximum Retrigger Frequency MaxRetriggerFreq 0 0 0 0 0 0 Minimum Retrigger Frequency MinRetriggerFreq 0 0
64. erved 27 Analog Ground 61 Analog Ground 28 Analog In 32 62 Reserved 29 Analog Ground 63 Analog Ground 30 Analog In 28 64 Reserved 31 Analog Ground 65 Analog Ground 32 Analog In 1 66 Reserved 33 Analog Ground 67 Analog Ground 34 Analog In 0 68 Reserved a Reserved on DT9832A series modules Connector Pin Assignments OEM J3 Connector Table 34 lists the pin assignments for connector J3 on the OEM version of the DT9832 Series module Table 34 Pin Assignments for Connector J3 on the OEM Version of Module J3 Pin J3 Pin Assignment Signal Description Assignment Signal Description 1 Quad 2 Index 35 Quad Dec 2 B 2 Quad Dec 2 A 36 Digital Ground 3 Quad 1 Index 37 Quad Dec 1 B 4 Quad Dec 1 A 38 Digital Ground 5 Quad 0 Index 39 Quad Dec 0 B 6 Quad Dec 0 A 40 Digital Ground 7 Counter 1 Out 41 Counter 1 Gate 8 Counter 1 Clock 42 Digital Ground 9 Counter 0 Out 43 Counter 0 Gate 10 Counter 0 Clock 44 Digital Ground 11 Digital Ground 45 Reserved 12 Digital Input 15 46 Digital Output 15 13 Digital Input 14 47 Digital Output 14 14 Digital Input 13 48 Digital Output 13 15 Digital Input 12 49 Digital Output 12 16 Digital Input 11 50 Digital Output 11 17 Digital Input 10 51 Digital Output 10 18 Digital Input 9 52 Digital Output 9 161 Appendix B 162 Table 34 Pin Assignments for Connector J3 on the OEM Version of Module cont
65. essories You can purchase the following optional items from Data Translation for use with the OEM version of the DT9832 Series module EP361 5V power supply and cable EP353 Accessory panel that provides one 37 pin D sub connector for attaching analog input signals and one 26 pin connector for attaching a 5B Series signal conditioning backplane EP355 Screw terminal panel that provides 14 position screw terminal blocks for attaching counter timer digital I O trigger and clock signals Not for analog input use with this module EP356 Accessory panel that provides two 37 pin D sub connectors for attaching digital I O analog output counter timer trigger and clock signals EP333 2 meter shielded cable with two 37 pin connectors that connect an EP356 accessory panel to an STP37 screw terminal panel EP360 2 meter shielded cable with two 37 pin connectors that connect an EP353 accessory panel to an STP37 screw terminal panel 23 Chapter 1 Getting Started Procedure The flow diagram shown in Figure 1 illustrates the steps needed to get started using the DT9832 Series module This diagram is repeated in each Getting Started chapter the shaded area in the diagram shows you where you are in the procedure Set Up and Install the Module see Chapter 2 starting on page 27 Wire Signals to the BNC Connection Box see Chapter 3 starting on page 37 FK Verify the Operati
66. external Note that in repetitive one shot mode the internal C T clock is more useful than an external clock refer to page 96 for more information about the C T clock sources Using software specify the counter timer mode as repetitive one shot the polarity of the output pulses high to low transition or low to high transition the C T clock source as internal recommended and the active gate type rising edge or falling edge Refer to page 98 for more information about pulse output types and to page 97 for more information about gates 107 Chapter 5 Note In the case of a one shot operation a duty cycle of 100 is set automatically Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting a repetitive one shot application 108 Principles of Operation Quadrature Decoder Features The DT9832 Series modules provide three 32 bit quadrature decoders that allow simultaneous decoding of three quadrature encoded inputs Quadrature decoders may be used to provide relative or absolute position or determine rotational speed by calculating the difference between samples To specify the quadrature decoder to use in software specify the appropriate QUAD subsystem For example quadrature decoder 0 corresponds to QUAD subsystem element 0 and quadrature decoder 1 corresponds to QUAD subsystem element 1 Note If you are using the DataAcq SDK you access the quadrature
67. he Digital Input box In addition application shows the state of the lower eight digital input lines lines 0 to 7 in the graphical display If an indicator light is lit red the line is high if an indicator light is not lit black the line is low Note Although the DT9832 Series modules contain 16 digital input lines the Quick DataAcq application shows indicator lights for the lower eight digital input lines only The 16 bit value is the correct value for all 16 lines 65 Chapter 4 66 Testing Single Value Digital Output Note Although the DT9832 Series modules contain 16 digital output lines the Quick DataAcq application allows you to perform a digital output operation on the lower eight digital output lines lines 0 to 7 only To verify that the module can output a single digital output value do the following 1 Connect a digital output to digital output line 0 on the DT9832 Series module Refer to page 49 for information about how to connect a digital output In the Quick DataAcq application choose Digital Output from the Control menu Select the appropriate DT9832 Series module from the Board list box Click the appropriate indicator lights to select the types of signals to write from the digital output lines If you select a light the module outputs a high level signal if you do not select a light the module outputs a low level signal You can also enter an output value for the lower
68. he module 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 133 Chapter 7 134 Calibration Using the Calibration Utility il ga enden dede 137 Calibrating the Analog Input Subsystem 138 141 Calibrating the Analog Output Subsystem 135 Chapter 8 DT9832 Series modules 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 input and analog output circuitry on the DT9832 Series modules every six months using the DT9832 DT9836 Calibration Utility Note Ensure that you installed the DT9832 Series Device Driver prior to using the DT9832 DT9836 Calibration Utility This chapter describes how to calibrate the analog input and output subsystems of DT9832 Series modules using the DT9832 DT9836 Calibration Utility 136 Calibration Using the Calibration Utility Start the DT9832 DT9836 Calibration Utility as follows 1 Click Start from the Task Bar 2 Select Programs Data Translation Inc Calibration DT9832 Calibration Utility The main menu of the DT9832 DT9836 Calibration Utility appears 3 Select the module to calibrate and then click OK Once the DT9832 DT9836 Calibration Utility is running you can calibr
69. hed peripherals 2 Click Start from the Task Bar 3 Browse to Programs Data Translation Inc 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 to C Program Files Data Translation Win32 dtdataacq hlp where C is the letter of your hard disk drive 61 Chapter 4 62 Testing Single Value Analog Input To verify that the module 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 on the DT9832 Series module Refer to page 47 for an example of how to connect an analog input 2 Inthe Quick DataAcq application choose Single Analog Input from the Acquisition menu 3 Select the appropriate DT9832 Series module from the Board list box 4 Inthe Channel list box select analog input channel 0 5 Inthe Range list box select the range for the channel The default is 10 V 6 Select Single Ended 7 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 V
70. how to wire signals using the BNC or D sub connectors Wiring Signals to the BNC Connectors To wire signals using the BNC connectors connect the appropriate BNC connector to the appropriate input output using a BNC cable The number of BNC connectors available on the box varies depending on the version of the box that you are using For example the DT9832 04 2 BNC version shown in Figure 5 on page 41 contains 10 BNC connectors 4 BNC connectors for single ended Wiring Signals to the BNC Connection Box analog inputs two BNC connectors for analog outputs and four BNC connectors for external clocks and triggers As another example the DT9832A 02 2 BNC version shown in Figure 6 contains 8 BNC connectors two BNC connectors for analog inputs two BNC connectors for analog outputs and four BNC connectors for external clocks and triggers DAC Cho DAC Clock 9O 0 o 2 DAC Chi AD Clock Q a 8 lt 2 j DAC Trig E E 2 AD Cho AD CH AD Trig 9 Figure 6 DT9832A 02 2 BNC Version of the BNC Connection Box Wiring Signals to the D Sub Connectors If want to connect digital I O or counter timer signals to the BNC connection box you can use the 37 pin D sub connectors These connectors are described in the following sections Note D sub connectors are not available on the BNC connection box for analog input
71. ications Feature Specifications Power 5 V 5 2 A maximum plus load on 5 V outputs Physical Dimensions OEM Dimensions BNC Weight OEM Environmental Operating temperature range Storage temperature range Relative humidity Altitude 190 mm x 100mm 215 9 mm x 105 9 mm x 50 mm 4 6 ounces 0 C to 55 C 25 C to 85 C to 95 noncondensing to 10 000 feet 153 Appendix A Table 31 lists the mating cable connectors for the connectors on the BNC connection box the OEM version of the DT9832 Series module and the EP353 and EP356 accessory panels Table 31 Mating Cable Connectors Part Number on Mating Cable Module Panel Connector Module or Equivalent Connector BNC connection Analog input AMP Tyco AMP AMP Tyco 5 747917 2 box 5747375 8 Digital I O AMP Tyco 5747301 8 AMP Tyco 5 747916 2 CT DAC AMP Tyco 5747301 8 AMP Tyco 5 747916 2 Clk Trig OEM version J2 AMP Tyco 6 104068 8 AMP Tyco 3 111196 48 J3 AMP Tyco 6 104068 8 AMP Tyco 3 111196 42 TB1 Phoenix Contact Phoenix Contact 1707434 1839610 EP353 J1 AMP Tyco 5102321 6 AMP Tyco 1658622 6 accessory panel ie AMP Tyco 5747375 8 AMP Tyco 5 747917 2 EP356 J1 AMP Tyco 5747301 8 AMP Tyco 5 747916 2 accessory panel jg AMP Tyco 5747301 8 AMP Tyco 5 747916 2 a The mating PCB receptacle is AMP Tyco 6 104078 3 b Secondary power connector 154 Specif
72. ications Table 32 lists the regulatory specifications for the DT9832 Series modules Table 32 Regulatory Specifications Feature Specifications Emissions EMI FCC Part 15 EN55022 1994 A1 1995 A2 1997 VCCI AS NZS 3548 Class A Immunity EN61000 6 1 2001 RoHS EU Directive 2002 95 EG Compliant as of July 1st 2006 155 Appendix A 156 Connector Pin Assignments DEM Version Connectors sur addere EEN 158 BNC Box Connectors ze ee ere e re eR tte rens 165 EP353 Accessory Panel Connectors sser 169 EP356 Accessory Panel Connectors 173 EP355 Screw Terminal Assignments 177 157 Appendix B OEM Version Connectors This section describes the pin assignments for the J2 and J3 connectors on the OEM version of the DT9832 Series modules as well as the secondary power connector TB1 You can access these pins by building your own cable and screw terminal panel refer to Appendix A for information about the required mating connectors Figure 25 shows the orientation of the pins on these connectors Connector J3 Connector J2 TB1 Secondary Power Connector O Pin 35 Pin68 O_O Pin35 Pin 68 Pin 1 Pin 34 Pin 1 Pin 34 I D OEM Version of am DT9832 Series Module O Figure 25 Connectors on OEM Version of DT9832 Module Note If you are using the BNC connection box refer to Chapte
73. ify that the supplied voltage to your selected channel is 0 000 V and then click OK The offset value is calibrated When the offset calibration is complete a message appears notifying you to set the input voltage of the channel to 9 375 V 6 Check that the supplied voltage to your selected channel is 9 375 V and then click OK The gain value is calibrated and a completion message appears 7 Ifyouchose to calibrate all channels repeat the proceeding four steps for all other A D channels on the board the calibration utility prompts you to attach the precision voltage source to the next channel Follow the on screen prompts to proceed through the rest of the channels Note At any time you can click Restore Factory Settings to reset the A D calibration values to their original factory settings This process will undo any auto or manual calibration settings Using the Manual Calibration Procedure If you want to manually calibrate the analog input circuitry instead of auto calibrating it do the following for each channel substitute the appropriate channel number as you go 1 Adjust the offset as follows a Verify that 0 000 V is applied to AD Cho and that A D Channel Select is set to Channel 0 The current voltage reading for this channel is displayed in the A D Value window b Adjust the offset by entering values between 0 and 255 in the Offset edit box or by clicking the up down buttons until the A D Value is 0
74. k DataAcq 21 183 Index 184 B base clock frequency 123 BaseClockFrequency 123 binary data encoding 117 BNC connection box connector pin assignments 165 buffers 83 88 90 116 inprocess flush 116 single wrap mode 116 C C C programs 22 C T see counter timer 150 cables USB 32 33 calibrating the module analog input subsystem 138 analog output subsystem 141 running the calibration utility 137 CGLDepth 118 channel list for analog input channels 74 for counter timers 75 for digital input port 75 for quadrature decoders 76 channel type differential 118 single ended 118 channel gain list depth 118 channels analog input 73 analog output 84 counter timer 95 digital I O 92 number of 118 quadrature decoder 109 clock sources analog input 78 analog output 87 counter timer 96 quadrature decoder 110 clock falling edge type 125 clock rising edge type 125 clocks base frequency 123 external 123 internal 123 maximum external clock divider 123 maximum throughput 123 minimum external clock divider 123 minimum throughput 123 simultaneous 123 specifications 152 connecting signals analog inputs 47 analog outputs 48 continuous edge to edge measurement 55 digital inputs and outputs 49 edge to edge measurement 54 event counting 50 frequency measurement 53 period measurement 53 pulse output 56 pulse width measurement 53 up down counting 52 connecting to the host computer 31 connector J1 pin assignments EP353 17
75. k Trig Connector Pin Signal Description Pin Signal Description 1 Analog Output 0 20 Analog Output 0 Return 2 Analog Output 1 21 Analog Output 1 Return 3 Reserved 22 Reserved 4 Reserved 23 Reserved 5 Digital Ground 24 Digital Ground 6 External DAC Clock 25 External DAC Trigger 7 External ADC Clock 26 External ADC Trigger 8 Counter 0 Clock 27 Digital Ground 9 Counter 0 Out 28 Counter 0 Gate 10 Counter 1 Clock 29 Digital Ground 11 Counter 1 Out 30 Counter 1 Gate 12 Quad Dec 0 A 31 Digital Ground 13 Quad 0 Index 32 Quad Dec 0 B 14 Quad Dec 1 A 33 Digital Ground 15 Quad 1 Index 34 Quad Dec 1 B 16 Quad Dec 2 A 35 Digital Ground 45 Chapter 3 Table 3 CT Enc In Analog Out CIk Trig Connector cont Pin Signal Description Pin Signal Description 17 Quad 2 Index 36 Quad Dec 2 B 18 Digital Ground 37 Digital Ground 19 No Connect 46 Wiring Signals to the BNC Connection Box Connecting Analog Input Signals The BNC connection box supports voltage inputs You can connect analog input signals to a BNC connection box in single ended mode In this mode the source of the input should be close to the module and all the input signals are referred to the same common ground Figure 7 shows how to connect single ended voltage inputs channels 0 and 1 in this case to the BNC connectors on the BNC connection
76. larly useful when you want to correlate the timing of analog and quadrature decoder values To read a quadrature decoder channel specify the appropriate channel numbers in the analog input channel list refer to Table 5 on page 77 You can enter a channel number anywhere in the list You need two channel list entries to read one 32 bit counter value The first entry stores the lower 16 bit word and the second entry stores the upper 16 bit word You must specify both channel list entries to include a quadrature decoder channel Principles of Operation Table 5 lists the channel number s to use for each quadrature decoder Table 5 Using Quadrature Decoders in Analog Input Channel List Channel to Specify in the Quadrature Channel List for Decoder Channel Description DT9832 DT9832A QUAD 0 LOW Lower 16 bits of Q D 0 Channel 9 Channel 7 QUAD 0 HI Upper 16 bits of Q D 0 Channel 10 Channel 8 QUAD 1 LOW Lower 16 bits of Q D 1 Channel 11 Channel 9 QUAD 1 HI Upper 16 bits of Q D 1 Channel 12 Channel 10 QUAD 2 LOW Lower 16 bits of Q D 2 Channel 13 Channel 11 QUAD 2 HI Upper 16 bits of Q D 2 Channel 14 Channel 12 Note If you are using the DataAcq SDK you access the quadrature decoders through the C T subsystem C T subsystem 2 corresponds to quadrature decoder 0 C T subsystem 3 corresponds to quadrature decoder 1 and C T subsystem 4 corresponds to quadrature decoder 2 The quadrature
77. le Value Analog Input 62 Testing Single Value Analog Output 63 Testing Continuous Analog Input 64 Testing Single Value Digital Input 65 Testing Single Value Digital Output 66 Testing Frequency Measurement bare bled 67 Testing Pulse Chulpn c ca 68 59 Chapter 4 60 Set Up and Install the Module see Chapter 2 starting on page 27 Wire Signals to the BNC Connection Box see Chapter 3 starting on page 37 Verify the Operation of the Module this chapter You can verify the operation of a DT 9832 Series module using the Quick Data Acq application Quick DataAcq lets you 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 Verifying the Operation of a Module Installing the Quick DataAcq Application The Quick DataAcq application is installed automatically when you install the driver software Running the Quick DataAcq Application To run the Quick Data Acq application do the following 1 If you have not already done so power up your computer and any attac
78. lerant Inputs Input logic load 1 LVTTL Input termination High input voltage Low input voltage Low input current 2 2 KQ pull up to 3 3 V 2 0 V minimum 0 8 V maximum 0 25 mA maximum Minimum pulse width High 25 ns Low 25 ns Triggering modes Single scan Yes Continuous scan Yes Triggered scan No 151 Appendix A Table 28 lists the specifications for the internal A D and D A clocks on the DT9832 Series modules 152 Table 28 Internal A D and D A Clock Specifications Feature Specifications Reference frequency 48 MHz Divisor range 3 to 4 294 967 295 Usable range A D clock D A clock 0 00838 Hz to 1 25 or 2 0 MHz 0 00838 Hz to 500 kHz Table 29 lists the specifications for the external A D and D A clocks on the DT9832 Series modules Table 29 External A D and D A Clock Specifications Feature Specifications Input type A D falling edge D A rising edge Logic family LVTTL 5 V tolerant Inputs Input logic load Input termination High input voltage Low input voltage 1 LVTTL 2 2 KQ pull up to 3 3 V 2 0V 0 8 V Frequency DC to 1 25 MHz or 2 0 MHz DT9832A Minimum pulse width High Low 25 ns 25 ns Specifications Table 30 lists the power physical and environmental specifications for the DT9832 Series modules Table 30 Power Physical and Environmental Specif
79. mbered 0 and 1 You can update the digital output port by specifying channel 2 in the analog output channel list Supported Device Driver Capabilities Gain Table 13 DT9832 Series Gain Options DT9832 Series AID D A DIN DOUT C T QUAD Programmable Gain Support SupportsProgrammableGain Yes Number of Gains NumberOfSupportedGains 1 1 1 1 0 0 Gains Available SupportedGains 1 1 1 1 Ranges Table 14 DT9832 Series Range Options DT9832 Series AID D A DIN DOUT C T QUAD Number of Voltage Ranges NumberOfRanges 1 1 0 0 0 0 Available Ranges SupportedVoltageRanges 10V 10 V8 Current Output Support SupportsCurrentOutput a For the D A subsystem that is used as the threshold trigger the range is 0 to 10 V where a raw count of 0 represents 0 V and a raw count of 255 represents 10 V 119 Chapter 6 120 Resolution Table 15 DT9832 Series Resolution Options DT9832 Series A D Software Programmable Resolution SupportsSoftwareResolution D A DIN DOUT CIT QUAD Number of Resolutions NumberOfResolutions 1 Available Resolutions SupportedResolutions 16 162 16 16 32 32 a For the D A subsystem that is used to set the analog threshold value the resolution is 8 bits Thermocouple and RTD Support Table 16 DT9832 Series Thermocouple and RTD Support Options
80. measure the time interval between a specified start edge and a specified stop edge The start edge and the stop edge can occur on the rising edge of the Counter n Gate input the falling edge of the Counter n Gate input the rising edge of the Counter n Clock input or the falling edge of the Counter n Clock input When the start edge is detected the counter timer starts incrementing and continues incrementing until the stop edge is detected The C T then stops incrementing until it is enabled to start another measurement 102 Principles of Operation You can use edge to edge measurement mode to measure the following e Pulse width of a signal pulse the amount of time that a signal pulse is in a high or a low state or the amount of time between a rising edge and a falling edge or between a falling edge and a rising edge You can calculate the pulse width as follows Pulse width Number of counts 48 MHz Period of a signal pulse the time between two occurrences of the same edge rising edge to rising edge or falling edge to falling edge You can calculate the period as follows Period 1 Frequency Period Number of counts 48 MHz Frequency of a signal pulse the number of periods per second You can calculate the frequency as follows Frequency 48 MHz Number of Counts 5 When the operation completes you can read the value of the counter Using software specify the counter timer mode as edge to edge
81. module letting the module stop when it runs out of data or you can perform either an orderly stop or an abrupt stop using software In an orderly stop the module finishes outputting the current buffer and then stops all subsequent triggers are ignored In an abrupt stop the module stops outputting samples immediately all subsequent triggers are ignored Waveform Generation Use waveform generation mode if you want to output a waveform repetitively Note The waveform pattern size must be the same for all output channels and the total number of samples must be a multiple of the total number of output channels Use software to fill the output buffer with the values that you want to write to the channels in the output channel list For example if your output channel list contains only DACO and the digital output port specify the values in the output buffer as follows the first output value for DACO the first output value for the digital output port the second output value for DACO the second output value for the digital output port and so on When it detects a trigger the host computer transfers the entire waveform pattern to the module and the module starts writing output values to the output channels as determined by the output channel list A single buffer is output repeatedly Use software to allocate the memory and specify the waveform pattern 89 Chapter 5 To select waveform generation mode use softwar
82. n the computer issues a write to the module to begin conversions Using software specify the trigger source as a software trigger External digital TTL trigger An external digital TTL trigger event occurs when the DT9832 Series module detects either a rising edge positive or falling edge negative transition on the signal connected to the AD Trig BNC connector on the module Using software specify the trigger source as an external positive digital TTL trigger or an external negative digital TTL trigger Analog threshold trigger An analog threshold trigger event occurs when the signal on the first channel in the analog input channel list rises above low to high transition a programmable threshold level Using software specify the trigger source as a positive threshold trigger You must use analog input channel 0 as the analog trigger The analog trigger channel must be the first entry in the analog input channel list You specify the threshold level by setting the value of the D A subsystem that controls the threshold value For modules that do not have analog output channels this is D A subsystem 0 For modules that do have analog outputs this is D A subsystem 1 Specify a value between 0 and 255 where 0 equals 0 V and 255 equals 10 V Data Format and Transfer DT9832 Series modules use offset binary data encoding where 0000 represents negative full scale and FFFFh represents positive full scale Use sof
83. ne s that you want to use for interrupt on change operations When any of the selected lines changes state the module reads the entire 16 bit digital input value and generates an interrupt 6 Click OK 7 If you want to rename the module click Edit Name enter a new name for the module and then click OK The name is used to identify the module in all subsequent applications 8 Repeat steps 4 to 7 for the other modules that you want to configure 9 When you are finished configuring the modules click Close Continue with the instructions on wiring in Chapter 3 Wiring Signals to the BNC Connection Box Preparing to Wire Signals EE En 39 Connecting Analog Input Signals 47 Connecting Analog Output Signals 48 Connecting Digital I O Signals 49 Connecting Counter Timer Signals 50 Connecting Quadrature Decoder Signals 58 37 Chapter 3 38 C Set Up and Install the Module see Chapter 2 starting on page 27 Wire Signals to the BNC Connection Box this chapter C Verify the Operation of the Module see Chapter 4 starting on page 59 Wiring Signals to the BNC Connection Box Preparing to Wire Signals This section provides recommendations and information about wiring signals to the BNC connection box Note If you are using the D sub connectors on the BNC box or the OEM
84. ned by the C T clock source either internal using a clock divider or external Note that in one shot mode the internal C T clock is more useful than an external C T clock refer to page 96 for more information about the C T clock sources Using software specify the counter timer mode as one shot the clock source as internal recommended the clock divider the polarity of the output pulse high to low transition or low to high Principles of Operation transition and the active gate type rising edge or falling edge Refer to page 98 for more information about pulse output types and to page 97 for more information about gate types Note In the case of a one shot operation a duty cycle of 100 is set automatically Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting a one shot application Repetitive One Shot Use repetitive one shot mode to generate a pulse output signal from the Counter n Out line whenever the specified edge is detected on the Counter n Gate signal You can use this mode to clean up a poor clock input signal by changing its pulse width and then outputting it The module continues to output pulses until you stop the operation Note that any Counter n Gate signals that occur while the pulse is being output are not detected by the module The period of the output pulse is determined by the C T clock source either internal using a clock divider or
85. nitiate the firmware to accept commands b Click Next and or Finish again The LED on the module turns green Note Windows 7 finds the device automatically Repeat these steps until you have attached the number of expansion hubs and modules that you require Refer to Figure 4 The operating system automatically detects the LISB devices as they are installed Setting Up and Installing the Module Host Computer DT9832 Series Module a USB Cable OH Hu Power Supply a amp Expansion a Power Supply for Module USB Cables DT9832 Series y x Module Ca 8 USB Cable H for Hub mM LA Y Power Supply for Hub DT9832 Series DT9832 Series Module Module USB Cables Figure 4 Attaching Multiple Modules Using Expansion Hubs 35 Chapter 2 36 Configuring the DT9832 Series Device Driver To configure the device driver for the DT9832 Series module do the following 1 Ifyouhave not already done so power up the host computer and all peripherals 2 From the Windows Start menu select Settings Control Panel 3 From the Control Panel double click Open Layers Control Panel The Data Acquisition Control Panel dialog box appears 4 Click the DT9832 Series module that you want to configure and then click Advanced The Configurable Board Options dialog box appears 5 Ifrequired select the digital input li
86. nnector pin assignments Digital I O signals To wire digital I O signals you must use the appropriate pins on the Digital I O connector You can access the pins by building your own cable panel Refer to page 44 for connector pin assignments 41 Chapter 3 42 e Counter timer signals To wire counter timer signals you must use the appropriate pins on the CT Enc In Analog Out Clk Trig connector You can access the pins by building your own cable panel Refer to page 45 for connector pin assignments e External A D clock or trigger signal You can wire external clock trigger signals in one of the following ways Using the BNC connectors labelled AD Clock for A D clock signals and AD Trig for A D trigger signals Using the appropriate pins on the CT Enc In Analog Out Clk Trig connector You can access the pins by building your own cable panel Refer to page 45 for connector pin assignments External DAC clock or trigger signal If your version of the DT9832 module supports analog output operations you can wire external clock trigger signals in one of the following ways Using the BNC connectors labelled DAC Clock for D A clock signals and DAC Trig for D A trigger signals Using the appropriate pins on the CT Enc In Analog Out Clk Trig connector You can access the pins by building your own cable panel Refer to page 45 for connector pin assignments The following sections describe
87. nput Enables a counter timer operation when a high to low transition is detected on the Counter n Gate signal In software this is called a low edge gate type Note that this gate type is used for edge to edge measurement one shot and repetitive one shot mode refer to page 99 for more information about these modes Rising edge external gate input Enables a counter timer operation when a low to high transition is detected on the Counter n Gate signal In software this is called a high edge gate type Note that this gate type is used for edge to edge measurement one shot and repetitive one shot mode refer to page 99 for more information about these modes Specify the gate type in software Pulse Output Types and Duty Cycles The DT9832 Series modules can output the following types of pulses from each counter timer High to low transitions The low portion of the total pulse output period is the active portion of the counter timer clock output signal Low to high transitions The high portion of the total pulse output period is the active portion of the counter timer pulse output signal You specify the pulse output type in software The duty cycle or pulse width indicates the percentage of the total pulse output period that is active For example a duty cycle of 50 indicates that half of the total pulse output is low and half of the total pulse output is high You specify the duty cycle in software Figu
88. number of seconds per division 1 to 00001 for the display 5 Inthe Channel list box select analog input channel 1 and then click Add to add the channel to the channel list Note that by default channel 0 is included in the channel list 6 Click Config from the Toolbar 7 Inthe Config dialog select ChannelType and then select Single Ended 8 Inthe Config dialog select Range and then select Bipolar 9 Click OK to close the dialog box 10 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 11 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 12 Click Stop from the Toolbar to stop the operation Verifying the Operation of a Module Testing Single Value Digital Input To verify that the module can read a single digital input value do the following L Connect a digital input to digital input line 0 on the DT9832 Series module Refer to page 49 for information about how to connect a digital input 2 In the Quick DataAcq application choose Digital Input from the Acquisition menu 3 Select the appropriate DT9832 Series module from the Board list box 4 Click Get The application displays the entire 16 bit digital input value 0 to FFFF in both the Data box and t
89. o accurately control the period between conversions of individual channels in the output channel list refer to page 85 for information on specifying the output channel list Use software to fill the output buffer with the values that you want to write to the DACs and to the digital output port if applicable For example if your output channel list contains only DACO and the digital output port specify the values in the output buffer as follows the first output value for DACO the first output value for the digital output port the second output value for DACO the second output value for the digital output port and so on When it detects a trigger the module starts writing the values from the output buffer to the channels specified in the output channel list The operation repeats continuously until all the data is output from the buffers Make sure that the host computer transfers data to the output channel list fast enough so that the list does not empty completely otherwise an underrun error results To select streaming analog output mode use software to specify the following parameters Set the data flow as Continuous e Set WrapSingleBuffer to False to use multiple buffers Set the trigger source to any of the supported trigger sources Refer to page 86 for more information about the supported trigger sources Principles of Operation To stop a streaming analog output operation you can stop sending data to the
90. o 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 Your product serial number The hardware software product you need help on The version of the OMNI CD you are using 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 number of your nearest distributor 132 Troubleshooting If Your Module Needs Factory Service If your module must be returned to Data Translation do the following 1 Record the module 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 module in an electrically conductive plastic material Handle with ground protection A static discharge can destroy components on the module Placeina secure shipping container 3 Return t
91. on of the Module C see Chapter 4 starting on page 59 Figure 1 Getting Started Flow Diagram 24 Part 1 Getting Started 2 cc Setting Up and Installing the Module i ER 29 Applying Power to the Module 30 Attaching Modules to the Computer 31 Configuring the DT9832 Series Device Driver 36 27 Chapter 2 Set Up and Install the Module this chapter Wire Signals to the BNC Connection Box see Chapter 3 starting on page 37 Verify the Operation of the Module see Chapter 4 starting on page 59 Note The DT9832 Series module is factory calibrated If you decide that you want to recalibrate the analog input or analog output circuitry refer to the instructions on Chapter 8 28 Setting Up and Installing the Module Unpacking Open the shipping box and verify that the following items are present e BNC connection box or OEM version of the DT9832 Series module Data Acquisition OMNI CD Note that if you purchased a BNC connection box a USB cable and an EP361 power supply and power cable should also be included 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 replacing missing or damaged items If you are located outside the United States call you
92. on the BNC connection box 167 Appendix B 168 Table 37 BNC Connection Box CT Enc In Analog Out Clk Trig Connector Pin Assignments SE Signal Description SE Signal Description 1 Analog Output 0 20 Analog Output 0 Return 2 Analog Output 1 21 Analog Output 1 Return 3 Reserved 22 Reserved 4 Reserved 23 Reserved 5 Digital Ground 24 Digital Ground 6 External DAC Clock 25 External DAC Trigger 7 External ADC Clock 26 External ADC Trigger 8 Counter 0 Clock 27 Digital Ground 9 Counter 0 Out 28 Counter 0 Gate 10 Counter 1 Clock 29 Digital Ground 11 Counter 1 Out 30 Counter 1 Gate 12 Quad Dec 0 A 31 Digital Ground 13 Quad 0 Index 32 Quad Dec 0 B 14 Quad Dec 1 A 33 Digital Ground 15 Quad 1 Index 34 Quad Dec 1 B 16 Quad Dec 2 A 35 Digital Ground 17 Quad 2 Index 36 Quad Dec 2 B 18 Digital Ground 37 Digital Ground 19 No Connect a Reserved on DT9832A 02 0 OEM DT9832A 02 0 BNC DT9832 04 0 OEM and DT9832 04 0 BNC modules Connector Pin Assignments EP353 Accessory Panel Connectors To attach an EP353 accessory panel to the OEM version of the DT 9832 Series module plug the EP353 panel into connector J2 on the module as shown in Figure 28 EP353 Accessory Panel 26 Pin Connector J1 OEM Version of 37 Pin DT9832 Series Connector J2 Module SS E Module Cm J2 iu J3 Figure 28 Connecting the EP353 Accessory Panel to Conn
93. operation is disabled rate generation stops 105 Chapter 5 106 The period of the output pulse is determined by the C T clock source either internal using a clock divider or external You can output pulses using a maximum frequency of 20 MHz this is the frequency of the Counter n Out signal Refer to page 96 for more information about the C T clock sources Using software specify the counter timer mode as rate generation rate the C T clock source as either internal or external the clock divider for an internal clock the polarity of the output pulses high to low transition or low to high transition the duty cycle of the output pulses and the active gate type low level or high level Refer to page 98 for more information about pulse output signals and to page 97 for more information about gate types Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting a rate generation application One Shot Use one shot mode to generate a single pulse output signal from the Counter n Out line when the specified edge is detected on the Counter n Gate signal You can use this pulse output signal as an external digital TTL trigger to start other operations such as analog input or analog output operations After the single pulse is output the one shot operation stops All subsequent clock input signals and gate input signals are ignored The period of the output pulse is determi
94. ou can access the pins on connector J2 either by using the EP360 cable and STP37 screw terminal panel available from Data Translation or by building your own cable panel Refer to Appendix A for information about the required mating connectors Table 39 lists the pin assignments of connector J2 on the EP353 accessory panel 171 Appendix B 172 Table 39 EP353 Connector J2 Pin Assignments J2 Pin J2 Pin Assignment Signal Description Assignment Signal Description 1 Analog Input 0 20 Reserved 2 Analog Input 1 21 Reserved 3 Analog Input 22 22 Reserved 4 Analog Input 32 23 Reserved 5 Reserved 24 Reserved 6 Reserved 25 Reserved 7 Reserved 26 Reserved 8 Reserved 27 Reserved 9 Reserved 28 Reserved 10 Reserved 29 Reserved 11 Reserved 30 Reserved 12 Reserved 31 Reserved 13 Reserved 32 Reserved 14 Reserved 33 Reserved 15 Reserved 34 Reserved 16 Reserved 35 Reserved 17 Reserved 36 Analog Ground 18 5 V Analog 37 Digital Ground 19 Chassis Ground a Reserved on DT9832A Series modules Connector Pin Assignments EP356 Accessory Panel Connectors To attach an EP356 accessory panel to the OEM version of the DT 9832 Series module plug the EP356 panel into connector J3 on the module as shown in Figure 31 EP356 Accessory Panel 37 Pin Connector J1 OEM Version of DT9832 Series L EE Module onnector Ps Connector J2 mum m J3 Figur
95. pin assignments and describes how to wire signals to the OEM version of the DT9832 Series modules using backplanes accessory panels and screw terminal panels Appendix C Ground Power and Isolation describes the electrical characteristics of the DT9832 Series modules An index completes this manual Conventions Used in this Manual The following conventions are used in this manual Notes provide useful 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 Items that you select or type are shown in bold Courier font is used to represent source code 13 About this Manual 14 Related Information Refer to the following documents for more information on using the DT9832 Series module Benefits of the Universal Serial Bus for Data Acquisition This white paper describes why USB is an attractive alternative for data acquisition It is available on the Data Translation web site www datatranslation com 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 devices DT Open Layers for NET User s Manual UM 22161 For programmers who are developing their own application programs using Visual
96. put Ranges and Gains Each DAC on the DT9832 Series module can output bipolar analog output signals in the range of 10 V Output Triggers A trigger is an event that occurs based on a specified set of conditions The DT9832 Series modules support the following output trigger sources e Software trigger A software trigger event occurs when you start the analog output operation Using software specify the trigger source as a software trigger External digital TTL trigger An external digital TTL trigger event occurs when the DT9832 Series module detects a rising edge or falling edge transition on the signal connected to the DAC Trig BNC connector on the module Using software specify the trigger source as either external positive digital TTL trigger or external negative digital TTL trigger 86 Principles of Operation Output Clocks DT9832 Series modules allow you to use one of the following clock sources to pace analog output operations e Internal DAC clock Using software specify the clock source as internal and the clock frequency at which to pace the operation The minimum frequency supported is 0 01118 Samples s the maximum frequency supported is 500 kSamples s External DAC clock An external DAC clock is useful when you want to pace conversions at rates not available with the output sample clock or when you want to pace at uneven intervals Connect an external DAC clock to the DAC Clock BNC
97. r 3 and BNC Box Connectors on page 165 for wiring information 158 Connector Pin Assignments OEM J2 Connector Table 33 lists the pin assignments for connector J2 on the OEM version of the DT9832 Series module Table 33 Pin Assignments for Connector J2 on the OEM Version of Module J2 Pin J2 Pin Assignment Signal Description Assignment Signal Description 1 5 V Analog 0 5 amps 35 Digital Ground 2 Reserved 36 Analog Ground 3 Analog Ground 37 Analog Ground 4 Reserved 38 Reserved 5 Analog Ground 39 Analog Ground 6 Reserved 40 Reserved 7 Analog Ground 41 Analog Ground 8 Reserved 42 Reserved 9 Analog Ground 43 Analog Ground 10 Reserved 44 Reserved 11 Analog Ground 45 Analog Ground 12 Reserved 46 Reserved 13 Analog Ground 47 Analog Ground 14 Reserved 48 Reserved 15 Analog Ground 49 Analog Ground 16 Reserved 50 Reserved 17 Analog Ground 51 Analog Ground 18 Reserved 52 Reserved 159 Appendix B 160 Table 33 Pin Assignments for Connector J2 on the OEM Version of Module cont J2 Pin J2 Pin Assignment Signal Description Assignment Signal Description 19 Analog Ground 53 Analog Ground 20 Reserved 54 Reserved 21 Analog Ground 55 Analog Ground 22 Reserved 56 Reserved 23 Analog Ground 57 Analog Ground 24 Reserved 58 Reserved 25 Analog Ground 59 Analog Ground 26 Reserved 60 Res
98. r local distributor listed on Data Translation s web site www datatranslation com 29 Chapter 2 30 Applying Power to the Module The BNC connection box is shipped with an EP361 5V power supply and cable For the OEM version of the DT9832 Series module you must provide your own 5 V power source or purchase the EP361 power supply and cable from Data Translation To apply power to the module do the following 1 Connect the 5 V power supply to the power connector on the DT9832 Series module Refer to Figure 2 EP361 5 V Power Connector Power Supply DT9832 Series LED Module To wall outlet USB Port Figure 2 Attaching a 5 V Power Supply to the DT9832 Series Module 2 Plug the power supply into a wall outlet For more detailed information about ground power and isolation connections on a DT9832 Series module refer to Appendix C starting on page 179 Setting Up and Installing the Module Attaching Modules to the Computer This section describes how to attach DT9832 Series modules to the host computer Notes Most computers have several USB ports that allow direct connection to USB devices If your application requires more DT9832 Series modules than you have USB ports for you can expand the number of USB devices attached to a single USB port by using expansion hubs For more information refer to page 33 You can unplug a module then plug it in again if you wish
99. re 23 illustrates a low to high pulse with a duty cycle of approximately 30 Principles of Operation Active Pulse Width lt gt high pulse low pulse i Total Pulse Period Figure 23 Example of a Low to High Pulse Output Type Counter Timer Operation Modes DT9832 Series modules support the following counter timer operation modes Eventcounting e Up down counting Frequency measurement Edge to edge measurement Continuous edge to edge measurement Rate generation e One shot e Repetitive one shot Note The active polarity for each counter timer operation mode is software selectable The following subsections describe these modes in more detail 99 Chapter 5 100 Event Counting Use event counting mode if you want to count the number of rising edges that occur on the Counter n Clock input when the Counter n Gate signal is active low level or high level Refer to page 97 for information about specifying the active gate type You can count a maximum of 4 294 967 296 events before the counter rolls over to 0 and starts counting again Using software specify the counter timer mode as event counting count the C T clock source as external and the active gate type as low level or high level Make sure that the signals are wired appropriately Refer to Chapter 3 for an example of connecting an event counting application
100. re familiar with the Microsoft Windows XP Windows Vista or Windows 7 operating system How this Manual is Organized This manual is organized as follows Chapter 1 Overview describes the major features of the DT9832 Series module as well as the supported software and accessories for the modules Chapter 2 Setting Up and Installing the Module describes how to install a module how to apply power to the module and how to configure the device driver Chapter 3 Wiring Signals to the BNC Connection Box describes how to wire signals to a DT9832 Series BNC connection box Chapter 4 Verifying the Operation of a Module describes how to verify the operation of the module with the Quick DataAcq application Chapter 5 Principles of Operation describes all of the features of the module and how to use them in your application Chapter 6 Supported Device Driver Capabilities lists the data acquisition subsystems and the associated features accessible using the DT9832 Series Device Driver About this Manual Chapter 7 Troubleshooting provides information that you can use to resolve problems with the module and device driver should they occur Chapter 8 Calibration describes how to calibrate the analog I O circuitry of the module Appendix A Specifications lists the specifications of the DT9832 Series modules Appendix B Connector Pin Assignments shows the
101. rnal A D clock or when you want to pace at uneven intervals Connect an external A D clock to the AD Clock BNC connector on the DT9832 Series module Conversions start on the falling edge of the external A D clock input signal Using software specify the clock source as external The clock frequency is always equal to the frequency of the external A D sample clock input signal that you connect to the module Principles of Operation Note If you specify the digital input port and or counter timer or quadrature decoder channels in the channel list the input sample clock internal or external also paces the acquisition of the digital input port and or counter timer and quadrature decoder channels Analog Input Conversion Modes DT9832 Series modules support the following conversion modes e Single value mode described below e Continuous scan mode described on page 79 Single Value Mode Single value operations are the simplest to use Using software you specify the analog input channel The module acquires the data from the specified channel and returns the data immediately For a single value operation you cannot specify a clock source trigger source scan mode or buffer Single value operations stop automatically when finished you cannot stop a single value operation Continuous Scan Mode Continuous scan mode takes full advantage of the capabilities of the DT9832 Series modules Use continuous scan mode if you
102. rs analog input 81 Index analog threshold 82 external 82 86 external negative digital 122 external positive digital 122 positive analog threshold 122 software 82 86 122 specifications 151 troubleshooting procedure 128 technical support 132 troubleshooting table 129 TTL trigger 82 86 U units counter timer 95 unpacking 29 up down counting 100 124 wiring 52 USB cable 32 33 USB expansion hub 33 V variable pulse width 124 Visual Basic for NET programs 21 Visual Basic programs 22 Visual C programs 21 Visual C programs 22 voltage ranges 78 119 number of 119 W waveform generation mode 89 wiring signals analog outputs 48 continuous edge to edge measurement 55 digital inputs and outputs 49 edge to edge measurement 54 event counting 50 frequency measurement 53 period measurement 53 preparing 39 pulse output 56 pulse width measurement 53 recommendations 39 single ended analog inputs 47 to the BNC connection box 40 up down counting 52 writing programs in C C 22 Visual Basic 22 Visual Basic NET 21 Visual C 21 Visual C 22 191 Index 192
103. s as follows 1 Set up one of the counter timers for one shot mode specifying the clock source as internal the clock frequency the gate type that enables the operation as rising edge or falling edge and the polarity of the output pulse as high to low transition or low to high transition 2 Set up the counter timer that will measure the frequency for event counting mode specifying the type of clock pulses 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 pulses are not counted until the active period of the one shot pulse is generated 101 Chapter 5 4 Read the number of pulses 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 Determine the frequency of the clock input signal using the following equation Frequency Measurement Number of Events Measurement Period Make sure that the signals are wired appropriately One way to wire a frequency measurement operation is to use the same wiring as an event counting application but not use an external gate signal Refer to Chapter 3 for an example of connecting a frequency measurement application Edge to Edge Measurement Use edge to edge measurement mode if you want to
104. s 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 installed and configured the device driver properly using the instructions in Chapter 2 Check that you have wired your signals properly using the instructions in Chapter 3 Search the DT Knowledgebase in the Support section of the Data Translation web site at www datatranslation com for an answer to your problem Visit the product s page on the Data Translation web site for the latest tips white papers product documentation and software fixes If you still experience problems try using the information in Table 21 to isolate and solve the problem If you cannot identify the problem refer to page 132 Troubleshooting Table 21 Troubleshooting Problems Symptom Possible Cause Possible Solution Module is not recognized You plugged the module into your computer before installing the device driver From the Control Panel gt System gt Hardware gt Device Manager uninstall any unknown devices showing a yellow question mark Then run the setup program on your OMNI CD to install the USB device drivers and reconnect your USB module to the computer Module does not respond The module configuration is incorrect Check the configuration of your device driver see the instructions in Chapter 2 The module is
105. s two analog inputs You can connect the analog input channels in single ended mode In this mode the source of the input should be close to the module and all the input signals are referred to the same common ground The BNC connection box is shipped in a single ended channel configuration 73 Chapter 5 74 Note To maintain simultaneous operation all analog input connections must have the same lead lengths Do not use the STP37 screw terminal panel with the analog input subsystem The DT9832 Series modules can acquire data from a single analog input channel or from a group of analog input channels Analog input channels are numbered 0 to 3 DT9832 or 0 and 1 DT9832A The following subsections describe how to specify the channels Specifying a Single Analog Input Channel The simplest way to acquire data from a single analog input channel is to specify the channel for a single value analog input operation using software refer to page 79 for more information about 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 Analog Input Channels You can read data from one or more analog input channels using an analog input channel list Because these modules feature simultaneous sampling the order of the channels in the channel list does not matter You cannot specify the same channel more than once in the list Using
106. scaling mode X1 or X4 mode to match the quadrature encoder mode e The index mode which either enables the Index signal or disables the Index signal Note For quadrature decoder operations set the clock source to external You can read the value of the quadrature decoder subsystem to determine relative or absolute position To determine the rotation of a quadrature encoder use the following formula Rotation degrees Count x 360 degrees 4 N 110 Principles of Operation where N is the number of pulses generated by the quadrature encoder per rotation For example if every rotation of the quadrature encoder generated 10 pulses and the value read from the quadrature decoder is 20 the rotation of the quadrature encoder is 180 degrees 20 40 x 360 degrees 111 Chapter 5 112 D Supported Device Driver Capabilities Data Flow and Operation Options oeoo ar ito soas 115 EE 116 Triggered Sean Mode EELSTEN tren mee 117 GEN 119 EE 118 EE 119 Resolution i i hann ree EES rhe bens 120 Thermocouple and RTD Support 120 TEPE Sp EE 121 EE 122 NEE 123 Counter Timers urea 124 113 Chapter 6 114 The DT9832 Series Device Driver provides support for the analog input A D analog output D A digital input DIN digital output DOUT counter timer C T and quadrature decoder QUAD subsystems For information on how
107. sical 153 power 153 quadrature decoder 150 regulatory 155 triggers 151 stopping an operation 81 89 SupportedGains 119 SupportedResolutions 120 SupportedVoltageRanges 119 SupportsBinaryEncoding 117 SupportsBuffering 116 SupportsClockFalling 125 SupportsClockRising 125 SupportsContinuous 115 SupportsContinuousMeasure 124 SupportsCount 124 SupportsDifferential 118 SupportsExternalClock 123 SupportsGateFalling 125 SupportsGateHighEdge 125 SupportsGateHighLevel 124 SupportsGateLowEdge 125 SupportsGateLowLevel 124 SupportsGateNone 124 SupportsGateRising 125 SupportsHighToLowPulse 124 SupportsInProcessFlush 116 SupportsInternalClock 123 SupportsInterruptOnChange 115 SupportsLowToHighPulse 124 SupportsMeasure 124 SupportsNegExternalTTLTrigger 122 SupportsOneShot 124 SupportsOneShotRepeat 124 SupportsPosExternalTTLTrigger 122 SupportsPosThresholdTrigger 122 SupportsProgrammableGain 119 SupportsRateGenerate 124 SupportsSimultaneousClocking 123 SupportsSimultaneousSampleHold 118 SupportsSimultaneousStart 115 SupportsSingleEnded 118 SupportsSingleValue 115 SupportsSoftwareTrigger 122 SupportsUpDown 124 SupportsVariablePulseWidth 124 SupportsWrapSingle 116 T TB1 connector pin assignments OEM version 164 technical support 132 threshold trigger positive 122 throughput maximum 123 minimum 123 transferring data analog input 82 analog output 90 triggered scan number of scans per trigger 117 retrigger frequency 117 trigge
108. software specify the channels that you want to sample You can enter up to 15 entries in the channel list 13 for the DT9832A module including digital input two 32 bit counter timers and three 32 bit quadrature decoders Channels 0 to 3 on the DT9832 0 and 1 on the DT9832A are reserved for analog input Refer to page 79 for more information about the supported conversion modes Principles of Operation Specifying the Digital Input Port in the Analog Input Channel List The DT9832 Series modules allow you to read the digital input port all 16 digital input lines 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 the digital input port specify channel 2 DT9832A or channel 4 DT9832 in the analog input channel list You can enter channel 2 or 4 anywhere in the list The digital input port 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 the digital input port if you specify them this way Specifying Counter Timers in the Analog Input Channel List The DT9832 Series modules allow you to read the value of the 32 bit counter timer channels using the analog input channel list This feature is particularly useful when you want to correlate the timing of analog and counter timer events To read a coun
109. software returns the current value of the digital input port as well as the digital input lines that changed state Note If you are using the DataAcq SDK to perform a continuous digital input operation use the Param parameter of the olDaSetWndHandle or olDaSetNotificationProcedure function to determine which digital input line changed state and the status of the digital input port when the interrupt occurred The low byte of the first word of IParam contains the state of the digital input subsystem where bit 0 corresponds to digital input line 0 and bit 7 corresponds to digital input line 7 The high byte of the first word of lParam contains the digital lines bits that changed state causing the interrupt to occur where bit 8 corresponds to digital input line 0 and bit 15 corresponds to digital input line 7 Principles of Operation Counter Timer Features This section describes the following features of counter timer C T operations e C T channels described below e C T clock sources described on page 96 e Gate types described on page 97 Pulse types and duty cycles described on page 98 e C T operation modes described on page 99 C T Channels The DT9832 Series modules provide two 32 bit counter timers C T subsystems 0 and 1 for general purpose use Each general purpose counter accepts a clock input signal and gate 5 input signal and outputs a pulse pulse output signal as shown in Figure 22 Clock
110. t signals 53 wiring period signals 53 wiring pulse width signals 53 wiring up down counting signals 52 counter timers connecting frequency measurement signals 53 connecting pulse output signals 56 wiring pulse output signals 56 counting events 100 customer service 133 D D A see analog output 147 data encoding 82 90 117 185 Index 186 data flow modes continuous C T 115 continuous digital input 115 continuous post trigger 115 single value 115 data format and transfer analog input 82 analog output 90 DataAcq SDK 22 device driver 21 36 differential channels 118 digital I O 92 adding a digital input port to the analog input channel list 75 adding a digital output port to the analog output channel list 85 input operations 93 lines 92 operation modes 93 output operations 93 single value operations 93 subsystem specifications 149 testing inputs 65 testing outputs 66 wiring 49 Digital In Out connector pin assignments 44 digital trigger 82 86 DT Open Layers for NET Class Library 21 DTx EZ 22 duty cycle 98 edge type clock falling 125 clock rising 125 gate falling 125 gate rising 125 edge to edge measurement mode 102 124 wiring 54 encoding data 82 90 environmental specifications 153 EP353 pin assignments 170 172 EP355 screw terminal 177 EP356 pin assignments 45 174 176 errors analog input 83 analog output 91 event counting 100 124 wiring 50 expansion hub 33 external clock 96 123
111. tal FO Eines ecce bere tia oon Re E rex rS 92 Operation Modes 93 Counter Timer Features 95 C T Channels e 95 C T Clock Sources 96 Gate TYPES EE 97 Pulse Output Types and Duty Cycles 98 Counter Timer Operation Modes 99 Event Counting 100 Up Down Counting sees 100 Frequency Measurement 101 Edge to Edge Measurement 102 Continuous Edge to Edge Measurement 104 Rate Generation 0 0 ce eee eee eee ee 105 One Shot iti ia 106 Repetitive One Shot L 0 00 cece eee 107 Quadrature Decoder Features 109 Chapter 6 Supported Device Driver Capabilities 113 Data Flow and Operation Options 115 e a DE I lele cala 116 Triggered Scan Mode eee ee 117 Data Encoding ism RR ii 117 Channels ee Loe sehen ee Rte ga RR Regu rete awe Renna 118 Contents Galli iuueni uae D ege a 119 RANGES pm 119 Resolution scinni Li 120 Thermocouple and RTD Support 120 TIEPE DOE iod genre iper 121 le 122 Clocks be aed ee PL 123 Counter Timers e 124 Chapter 7 Troubleshooting 127 General Checker 128 Technical Support 132 If Your Module Needs Factory Service 133 Chapter 8 Caltbratton ccc e eee eee 135 Using the Calibration Utility 137 Calibrating the Analog Input Subsystem 138
112. te signal You specify the start edge and the stop edge in software Refer to Chapter 5 for more information on edge to edge measurement mode 54 Wiring Signals to the BNC Connection Box Signal Source 1 Digital Ground Counter 0 Gate 5 qp 28 Signal Source 0 m Counter 0 Clock D8 D sub Pins Figure 16 Connecting Counter Timer Signals to the D sub Pins for an Edge to Edge Measurement Operation Continuous Edge to Edge Measurement Figure 17 shows how to connect counter timer signals to the CT Enc In Analog Output Clk Trig D sub pins to perform a continuous edge to edge measurement operation The counter measures the number of counts between two consecutive start edges in this case a rising edge on the Counter 0 Clock signal You specify the start edge in software Refer to Chapter 5 for more information on continuous edge to edge measurement operations 55 Chapter 3 56 Digital Ground Signal Source 0 Counter 0 Clock D sub Pins Figure 17 Connecting Counter Timer Signals to the D sub Pins for a Continuous Edge to Edge Measurement Operation Pulse Output Figure 18 shows how to connect counter timer signals to the CT Enc In Analog Output CIk Trig D sub pins to perform a pulse output operation on counter timer 0 in this example an external gate is used Wiring Signals to the BNC Connection
113. ter timer channel specify the appropriate channel numbers in the analog input channel list refer to Table 4 on page 76 You can enter a channel number anywhere in the list You need two channel list entries to read one 32 bit counter value The first entry stores the lower 16 bit word and the second entry stores the upper 16 bit word You must specify both channel list entries in sequential order to include a counter Omer channel Table 4 lists the channel number s to use for each counter timer 75 Chapter 5 76 Table 4 Using Counter Timers in Analog Input Channel List Channel to Specify in the Channel List for Counter Timer Channel Description DT9832 DT9832A C T 0 LOW Lower 16 bits 0 to 15 of C T O Channel 5 Channel 3 C T 0 HI Upper 16 bits 16 to 31 of C TO Channel 6 Channel 4 C T 1 LOW Lower 16 bits 0 to 15 of C T 1 Channel 7 Channel 5 C T 1 HI Upper 16 bits 16 to 31 of C T 1 Channel 8 Channel 6 The counter timer 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 the counter timers if you specify them this way Specifying Quadrature Decoders in the Analog Input Channel List The DT9832 Series modules allow you to read the value of the 32 bit quadrature decoder channels using the analog input channel list This feature is particu
114. ternal DAC clock 1 BNC for an external A D trigger and 1 BNC for an external DAC trigger Overview Supported Software The following software is available for use with the DT9832 Series modules and is on the Data Acquisition OMNI CD e DT9832 Series Device Driver The device driver allows you to use a DT9832 Series module with any of the supported software packages or utilities Refer to page 36 for more information on configuring the device driver e Quick DataAcq application The Quick DataAcq application provides a quick way to get up and running using a DT9832 Series module Using this application you can verify key features of the modules display data on the screen and save data to disk Refer to Chapter 4 starting on page 59 for more information on using the Quick Data Acq application e 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 plot it during acquisition analyze it and or save it to disk for later analysis Measure Foundry An evaluation version of this software is included or provided via a link on the Data Acquisition OMNI CD Measure Foundry is a 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 softw
115. to configure the device driver refer to page 36 Table 7 DT9832 Series Subsystems DT9832 Series AID D A DIN DOUT C T QUAD Total Subsystems on Module 1 1 or 28 1 1 2 a If your module does not support D A there is still one subsystem element 0 for the analog threshold trigger If your module does support D A subsystem element 0 contains the analog output channels and element 1 is used for the analog threshold trigger The tables in this chapter summarize the features available for use with the DT Open Layers for NET Class Library and the DT9832 Series modules 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 description 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 Supported Device Driver Capabilities Data Flow and Operation Options Table 8 DT9832 Series Data Flow and Operation Options DT9832 Series AID D A DIN DOUT C T QUAD Single Value Oper
116. tput lines lines 0 to 15 The resolution is fixed at 16 bits you cannot change the resolution in software You can read all 16 digital input lines or write all 16 digital output lines with a single value digital I O operation In addition you can specify the digital input port in an analog input channel list to perform a continuous digital input operation or you can specify the digital output port in an output channel list to perform a continuous digital output operation A digital line is high if its value is 1 a digital line is low if its value is 0 On power up or reset a low value 0 is output from each of the digital output lines The DT9832 Series modules allow you to program the first eight digital input lines to perform interrupt on change operations Refer to the next section for more information 92 Principles of Operation Operation Modes The DT9832 Series modules support 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 port the gain is ignored Data is then read from or written to all 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 Continuous digital I O takes full advantage of the capabilities of the DT9832 Series mod
117. tware to specify the data encoding as binary The ADC outputs FFFFh for above range signals and 0000 for below range signals Principles of Operation Before you begin acquiring data you must allocate buffers to hold the data An event is raised whenever a buffer is filled This allows you to move and or process the data as needed Note We recommend that you allocate a minimum of two buffers that can contain even multiples of 256 samples Data is written to multiple allocated input buffers continuously when no more empty buffers are available the operation stops The data is gap free Error Conditions The DT9832 Series module reports any overrun errors by generating an overrun event This event indicates that data buffers are not being sent from the host to the module fast enough and so the A D converter ran out of buffers To avoid this error try one or more of the following e Reduce the clock rate of the A D e Increase the size of the buffers e Increase the number of buffers e Close any other applications that are running e Run the program on a faster computer If one of these error conditions occurs the module stops acquiring and transferring data to the host computer 83 Chapter 5 Analog Output Features This section describes the following features of analog output operations e Output resolution described below Analog output channels described below Outputranges and gains described on p
118. ules using the analog I O clock source scan mode trigger source buffer and buffer wrap mode Digital input For digital input operations enter the digital input port all 16 digital input lines as channel 2 for the DT9832A or 4 for the DT9832 in the analog input channel 5 list refer to page 75 for more information The analog input sample clock internal or external paces the reading of the digital input port as well as the acquisition of the analog input counter timer and quadrature decoder channels refer to page 78 for more information Digital output For digital output operations enter the digital output port all 16 digital output lines as channel 2 in the output channel list refer to page 85 for more information The analog output clock internal or external paces the update of the digital output port as well as the update of the analog output channels refer to page 87 for more information 93 Chapter 5 94 e Interrupt on change operations You can use the Open Layers Control Panel applet or the DT Open Layers for NET Class Library to select any of the first eight digital input lines to perform interrupt on change operations refer to page 36 for more information Use software to set the data flow mode of the digital I O subsystem to Continuous When any one of the specified bits changes state the module reads the entire 16 bit digital input value and generates an interrupt The
119. ut Clk Trig D sub pins to perform an event counting operation on counter timer 0 without using a gate The counter counts the number of rising edges that occur on the Counter 0 Clock input Counter 0 Clock D 8 io 5 Signal Source Digital igital Ground D sub Pins Figure 12 Connecting Counter Timer Signals to the D sub Pins for an Event Counting Operation Without Using a Gate 51 Chapter 3 Up Down Counting Figure 13 shows how to connect counter timer signals to the CT Enc In Analog Output CIk Trig D sub pins to perform an up down counting operation on counter timer 0 The counter keeps track of the number of rising edges that occur on the Counter 0 Clock input The counter increments when the Counter 0 Gate signal is high and decrements when the Counter 0 Gate signal is low Counter 0 Gate g 28 Up Down a Signal Counter 0 Clock m D8 Source 3 seas Digital Ground D sub Pins Figure 13 Connecting Counter Timer Signals to the D sub Pins for an Up Down Counting Operation 52 Wiring Signals to the BNC Connection Box Frequency Measurement One way to measure frequency is to connect a pulse of a known duration such as a one shot output of counter timer 1 to the Counter 0 Gate input Figure 14 shows how to connect counter timer signals to the CT Enc In Analog Output Clk Trig D sub pins In this case the frequency of the Counter 0 clock input
120. ut and calculate rotational speed You can read the value of one or more of the quadrature decoder channels using the analog input channel list External or internal clock source Trigger operations using a software command an analog threshold value or an external digital trigger 500 V galvanic isolation barrier that prevents ground loops to maximize analog signal integrity and protect your computer 19 Chapter 1 20 The key differences among the DT9832 Series modules are summarized in Table 1 Note that all modules provide 16 digital input lines 16 digital output lines 16 bit resolution two counter timers three quadrature decoders and a throughput rate of up to 1250 kSamples s DT9832 or 2000 kSamples s DT9832A Table 1 Summary of DT9832 Series Modules Analog Module Analog Inputs Outputs Packaging DT9832 04 2 OEM 4 single ended 2 OEM DT9832 04 2 BNC 4 single ended 2 BNC DT9832 04 0 OEM 4 single ended 0 OEM DT9832 04 0 BNC 4 single ended 0 BNC DT9832A 02 2 OEM 2 single ended 2 OEM DT9832A 02 2 BNC 2 single ended 2 BNC DT9832A 02 0 OEM 2 single ended 0 OEM DT9832A 02 0 BNC 2 single ended 0 BNC Notes e OEM packaging refers to the board level version the power supply is not included e BNC packaging refers to a connection box with BNCs for the specified number of analog inputs 2 BNCs for analog outputs if included 1 BNC for an external A D clock 1 BNC for an ex
121. version of the DT9832 Series module use this chapter for conceptual information and then refer to Appendix B starting on page 157 for connector pin assignments and accessory panel information Wiring Recommendations Keep the following recommendations in mind when wiring signals to a BNC connection box Follow standard ESD procedures when wiring signals to the module Separate power and signal lines by using physically different wiring paths or conduits To avoid noise do not locate the box and cabling next to sources that produce high electromagnetic fields such as large electric motors power lines solenoids and electric arcs unless the signals are enclosed in a mumetal shield Prevent electrostatic discharge to the I O while the box is operational Connect all unused analog input channels to analog ground 39 Chapter 3 High Performance Considerations Cables have a characteristic impedance which can add amplitude and phase errors to signals typically 1 2 LSB at 10 KHZ for a 6 foot cable due to reflection if the impedance is unmatched on both ends of a connection For meticulous applications where optimal performance is required do the following e Pay attention to cable matching from the source to the DT9832 module and between channels e Consider placing a resistor with the same impedance in series with the cable at your source Alternatively add termination with matched impedance at the mo
122. want to accurately control the period between successive simultaneous conversions of all channels in a channel list You specify the channel list clock source trigger source scan mode and buffer using software 79 Chapter 5 80 When it detects an initial trigger the module simultaneously samples all of the input channels including the digital inputs counter timers and quadrature decoders and converts the analog inputs If the channel is included in the channel list the sampled data is placed in the allocated buffer s and the operation continues until the allocated buffers are filled or until you stop the operation Refer to page 82 for more information about buffers The conversion rate is determined by the frequency of the input sample clock refer to page 78 for more information about the input sample clock The sample rate which is the rate at which a single entry in the channel list is sampled is the same as the conversion rate due to the simultaneous nature of the module To select continuous scan mode use software to specify the data flow as Continuous and to specify the initial trigger the trigger source that starts the operation You can select a software trigger an external positive digital TTL trigger an external negative digital TTL trigger or a positive analog threshold trigger as the initial trigger Refer to page 81 for more information about the supported trigger sources Figure 21 illustrates
123. without causing damage This process is called hot swapping Your application may take a few seconds to recognize a module once it is plugged back in You must install the device driver before connecting your DT9832 Series module s to the host computer 31 Chapter 2 32 Connecting Directly to the USB Ports To connect a DT9832 Series module directly to a USB port on your computer do the following 1 Make sure that you have attached a power supply to the module 2 Attach one end of the USB cable to the USB port on the module 3 Attach the other end of the USB cable to one of the USB ports on the host computer as shown in Figure 3 The operating system automatically detects the USB module and starts the Found New Hardware wizard DT9832 Series Power Cable Module USB Ports ri d ke n Host Computer Figure 3 Attaching the Module to the Host Computer 4 For Windows Vista a Click Locate and install driver software recommended The popup message Windows needs your permission to continue appears b Click Continue The Windows Security dialog box appears Setting Up and Installing the Module c Click Install this driver software anyway The LED on the module turns green For Windows XP a Click Next and or Finish as required in the wizard Once the firmware is loaded the wizard restarts to initiate the firmware to acc
124. ypical essentially glitchless Output range 10 V Data encoding Offset binary Output current 5 mA maximum load Output impedance 0 1 Q maximum Capacitive driver capability 0 004 uF Protection Short circuit to analog ground Integral nonlinearity 1 0 LSB 1 2 LSB Differential nonlinearity 1 0 LSB 1 2 LSB Inherent quantizing error 1 0 LSB 1 2 LSB Error Zero Gain Adjustable to 0 Adjustable to 0 147 Appendix A 148 Table 24 D A Subsystem Specifications cont Feature Specifications Drift Zero bipolar 10 ppm of FSR C Gain 30 ppm of FSR C FIFO 128 kSamples total ESD protection Arc 8 kV Contact A kV Specifications Table 25 lists the specifications for the DIN DOUT subsystems on the DT9832 Series modules Table 25 DIN DOUT Subsystem Specifications Feature Specifications Number of digital I O lines 32 16 in 16 out Number of ports 2 16 bits each Logic family LVTTL 5 V tolerant Logic sense Positive true Inputs Input type Level sensitive Input logic load High input voltage Low input voltage Low input current 1 LVTTL 2 0 V minimum 0 8 V maximum 0 4 mA maximum Input termination Outputs Fan out High output Low output High output current Low output current Inputs tied to 3 3 V through 15 KQ pull up

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