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DT9812, DT9813, and User`s Manual DT9814 Series

1. Power 5V Supply 2 5 V Reference C T Out 0 E From USB 32 Bit 8 Channel Multiplexer t P Port Counter Timer CIT Gate 0 gt A D Ch7 q CT In 0 A D Clock 4 External Clock A D Ch5 i External Trigger ADORA 12 Bit A D aali Converter l d W A D Ch3 lel ys pouto T1959 A D Ch2 Digital yo W A D Chi ap L DIN7 ye gt A D Cho Lal ESD Protected to 4000 V Lad L DINO DAC 1 12 Bit D A ESD Protected to 4000 V DAC 0 z Converter USB 2 0 or 1 1 Port Input FIFO Note For the DT9812 10V DT9812 10V OEM and DT9812A modules the reference is 2 5 V For the DT9812 2 5V module the reference is 2 44 V Figure 17 Block Diagram of the DT9812 2 5V DT9812 10V DT9812 10 OEM and DT9812A Modules 56 Principles of Operation Figure 18 shows a block diagram of the DT9813 10V and DT9813A modules Power L 5V Supply g 2 5 V Reference C T Out 0 c From USB 32 Bit 16 Channel Multiplexer P Port Counter Timer R CIT Gate 0 gt A D Ch15 lt q CIT In 0 gt A D Ch14 A D Clock pe External Clock A D Ch13 External Trigger DOUT3 e Converter e p e lel ys DOUTO gt A D Ch2 Digital 1 0
2. Screw Screw Terminal Signal Terminal Signal 11 DAC 0 Return 31 Digital Output 1 10 2 5 V Reference 30 Digital Output 0 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Digital Input 7 7 Analog Input CH6 27 Digital Input 6 6 Analog Input CH5 26 Digital Input 5 5 Analog Input CH4 25 Digital Input 4 4 Analog Input CH3 24 Digital Input 3 3 Analog Input CH2 23 Digital Input 2 2 Analog Input CH1 22 Digital Input 1 1 Analog Input CHO 21 Digital Input 0 a For the DT9812 10V module this reference is 2 5 V For the DT9812 2 5V module this reference is 2 44 V Table 3 DT9813 10V and DT9813A Screw Terminal Assignments 30 Screw Screw Terminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Digital Input 3 16 Counter 0 Gate 36 Digital Input 2 15 Ground 35 Digital Input 1 14 DAC 1 34 Digital Input 0 13 DAC 1 Return 33 Digital Output 3 12 DAC 0 32 Digital Output 2 11 DAC 0 Return 31 Digital Output 1 10 2 5 V Reference 30 Digital Output 0 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Analog Input CH15 7 Analog Input CH6 27 Analog Input CH14 6 Analog Input CH5 26 Analog Input CH13 Wiring Signals to the Module Table 3 DT9813 10V and DT9813A Screw Terminal Assignments cont Screw Screw Terminal Signal Terminal Signal
3. 20 1 2 1 J4 USB T Connector Digital UO Connector Table 5 lists the pin assignments for the Analog I O connector on the DT9812 10V OEM module Table 5 Analog I O Connector Pin Assignments on the DT9812 10V OEM Module 32 Pin Signal Pin Signal 20 USB 5 V Out 19 Ground 18 Counter 0 In 17 Counter 0 Out 16 Counter 0 Gate 15 Ground 14 DAC 1 13 DAC 1 Return 12 DAC 0 11 DAC 0 Return 10 2 5 V Reference 9 Analog Ground 8 Analog Input CH7 7 Analog Input CH6 6 Analog Input CH5 5 Analog Input CH4 4 Analog Input CH3 3 Analog Input CH2 2 Analog Input CH1 1 Analog Input CHO Wiring Signals to the Module Table 6 lists the pin assignments for the Digital I O connector on the DT9812 10V OEM module Table 6 Digital I O Connector Pin Assignments on the DT9812 10V OEM Module Pin Signal Pin Signal 20 Ext Trigger 19 Ext Clock 18 Ground 17 Digital Output 7 16 Digital Output 6 15 Digital Output 5 14 Digital Output 4 13 Digital Output 3 12 Digital Output 2 11 Digital Output 1 10 Digital Output 0 9 Ground 8 Digital Input 7 7 Digital Input 6 6 Digital Input 5 5 Digital Input 4 4 Digital Input 3 3 Digital Input 2 2 Digital Input 1 1 Digital Input O 33 Chapter 3 34 Connecting Analog Input Signals The DT9812 Series modules support 8 single ended analog input channels Th
4. DT9812 DT9813 and DT9814 Series A D Gate Rising Edge Type SupportsGateRising Yes Yes Interrupt Driven Operations SupportsInterrupt a The pulse width duty cycle if fixed at 50 when rate generation mode is used b Edge to edge measurement is supported on the gate signal only both rising and falling edges Chapter 6 88 General Checklist core Technical Support isse em If Your Module Needs Factory Service Troubleshooting 89 Chapter 7 90 General Checklist Should you experience problems using a DT9812 2 5V DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A 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 2 Check the OMNI CD for any README files and ensure that you have used the latest installation and configuration information available 3 Check that your system meets the requirements stated in the README file on the OMNI CD 4 Check that you have installed your hardware properly using the instructions in Chapter 2 5 Check that you have configured the device driver properly using the instructions in Chapter 2 6 Check that you have wired your signals properly using the instructions in Chapter 3 7 Search the DT Knowledgebase in the Support section of the Data Translat
5. csse 100 95 Chapter 8 96 The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A 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 these modules every six months using the DT9812 Series Calibration Utility Note The DT9812 2 5V module is calibrated at the factory and does not require further calibration Ensure that you installed the DT9812 DT9813 or DT9814 Series Device Driver prior to using the DT9812 Series Calibration Utility This chapter describes how to calibrate the analog input and output subsystems of the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A module using the DT9812 Series Calibration Utility Calibration Using the DT9812 Series Calibration Utility Start the DT9812 Series Calibration Utility as follows 1 From Windows Task Bar select Start Programs Data Translation Inc ECONseries Calibration DT9812 Series Calibration Utility The main menu appears 2 Select the module to calibrate and then click OK Once the DT9812 Series Calibration Utility is running you can calibrate the analog input circuitry either automatically or manually described on page 98 or the analog output circuitry of the module described on page 100 97 Chapter 8 Cali
6. 60 Using software specify the channels in the order you want to sample them You can enter up to 32 entries in the channel list The channels are read in order from the first entry in the list to the last entry in the list Refer to page 62 for more information about the supported conversion modes Input Ranges and Gains The DT9812 2 5V features an input range of 0 to 2 44 V while the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules feature an input range of 10 V Use software to specify the input range Note that this is the range for the entire analog input subsystem not the range per channel The modules support programmable gains to allow many more effective input ranges Table 7 lists the supported gains and effective input ranges for each module Table 7 Effective Input Range Unipolar Bipolar Module Gain Input Range Input Range DT9812 2 5V 1 0 to 2 44 V 2 Oto 1 22V 4 0 to 0 610 V 8 0 to 0 305 V 16 0 to 0 1525 V DT9812 10V 1 10V DT9812 10V OEM DT9812A 2 5 V DT9813 10V DT9813A 4 2 5 V DT9814 10V DT9814A 2 nd For each channel on the module choose the gain that has the smallest effective range that includes the signal you want to measure For example if you are using a D19812 2 5V module and the range of your analog input signal is 0 to 1 05 V specify a range of 0 to 2 44 V for the module and use
7. 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 9 DT9812 DT9813 and DT9814 Series Data Flow and Operation Options DT9812 DT9813 and DT9814 Series Single Value Operation Support SupportsSingleValue A D Yes D A Yes DIN Yes DOUT Yes C T Yes QUAD Simultaneous Single Value Output Operations SupportsSetSingleValues Continuous Operation Support SupportsContinuous 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 Output FIFO Size FifoSize 2k Auto Calibrate Support SupportsAutoCalibrate a A 2K FIFO is used by the D A subsystem a 1K FIFO is used by the A D subsystem 79 Chapter 6 Buffering Table 10 DT9812 DT9813 and DT9814 Series Buffering Options DT9812 DT9813 and DT9814 Series Buff
8. 5 Analog Input CH4 25 Analog Input CH12 4 Analog Input CH3 24 Analog Input CH11 3 Analog Input CH2 23 Analog Input CH10 2 Analog Input CH1 22 Analog Input CH9 1 Analog Input CHO 21 Analog Input CH8 Table 4 DT9814 10V and DT9814A Screw Terminal Assignments Screw Screw Terminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Analog Input CH23 16 Counter 0 Gate 36 Analog Input CH22 15 Ground 35 Analog Input CH21 14 DAC 1 34 Analog Input CH20 13 DAC 1 Return 33 Analog Input CH19 12 DAC 0 32 Analog Input CH18 11 DAC 0 Return 31 Analog Input CH17 10 2 5 V Reference 30 Analog Input CH16 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Analog Input CH15 7 Analog Input CH6 27 Analog Input CH14 6 Analog Input CH5 26 Analog Input CH13 5 Analog Input CH4 25 Analog Input CH12 4 Analog Input CH3 24 Analog Input CH11 3 Analog Input CH2 23 Analog Input CH10 2 Analog Input CH1 22 Analog Input CH9 1 Analog Input CHO 21 Analog Input CH8 31 Chapter 3 Wiring Signals to the DT9812 10V OEM Module The DT9812 10V OEM module provides two 20 pin connectors Analog I O connector and Digital I O connector for wiring signals Figure 4 shows the location of these two connectors Analog I O Connector Figure 4 Layout of the DT9812 10V OEM Module 20 1
9. If you want to manually calibrate the analog input circuitry instead of auto calibrating it do the following 1 Adjust the offset as follows a Verify that OV is applied to AD Ch0 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 63 in the Offset edit box or by clicking the up down buttons until the A D Value is 0 V 98 Calibration 2 Adjust the gain as follows a Verify that 9 375V is applied to AD Ch0 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 Adjustthe gain by entering values between 0 and 63 in the Gain edit box or by clicking the up down buttons until the A D Value is 9 3750 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 99 Chapter 8 100 Calibrating the Analog Output Subsystem This section describes how to use the DT9812 Series Calibration Utility to calibrate the analog output subsystem of a DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V orDT9814A module To calibrate the analog output circuitry you need to connect an external precision voltmeter to analog output channels 0 and 1 of the module Do the foll
10. Regulatory Sped GODE cues oer eds a Ee ad ERN BA bee ead ela cti 111 Mating Connector Specifications csse re a 3a eee 112 101 Appendix A Analog Input Specifications Table 23 lists the analog input specifications for the DT9812 DT9813 and DT9814 Series modules Table 23 Analog Input Specifications DT9812 10V DT9812 10V OEM DT9812A DT9813A DT9812 2 5V DT9813 10V DT9814 10V DT9814A Feature Specifications Specifications Specifications Number of analog input channels 8 single ended DT9812 10V 8 single ended DT9812 A 8 single ended DT9812 10V OEM 8 single ended DT9813A 16 single ended DT9813 10V 16 single ended DT9814A 24 single ended DT9814 10V 24 single ended Number of gains 5 1 2 4 8 16 4 1 2 4 8 4 1 2 4 8 Resolution 12 bit 12 bit 12 bit Data encoding binary twos complement twos complement System accuracy to of FSR Averaged over 50 readings Gain 1 0 04 0 04 0 04 Gain 2 0 06 0 06 0 06 Gain 4 0 08 0 08 0 08 Gain 8 0 10 0 10 0 10 Gain 16 0 15 Input Range Gain 1 0 to 2 44 V 10 V 10 V Gain 2 0 to 1 22 V 5 V 5 V Gain 4 0 to 0 610 V 2 5 V 2 5 V Gain 8 0 to 0 305 V 1 25 V 1 25 V Gain 16 0 to 0 1525 V Nonlinearity 0 05 0 05 0 05 Differential nonlinearity 1 2 LSB 1 2 LSB 1 2 LSB Inherent quantizing error 1 LSB 1 LSB 1 LSB Drift Zero 50 uV 100 uV 100 uV Gai
11. where e 2 44 is the full scale range of the module 0 to 2 44V e Code is the raw count used by the software to represent the voltage in binary notation e 4096 is the input resolution 12 bits e Voltage is the analog voltage 63 Chapter 5 For example if the software returns a code of 3072 for the analog input operation determine the analog input voltage as follows Voltage 2 44 3072 4096 1 83 V Converting a Twos Complement Code to a Voltage To convert a twos complement code into a voltage on the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A module use the following formula Voltage 20 Code 4096 where 20 is the full scale range of the module 10V to 10V e Code is the raw count used by the software to represent the voltage 4096 is the input resolution 12 bits e Voltage is the analog voltage For example assume that the software returns a code of 1040 for the analog input value Determine the analog input voltage as follows Voltage 20 1040 4096 5 078 V Error Conditions An overrun condition is reported if the A D sample clock rate is too fast This error is reported if a new A D sample clock pulse occurs while the ADC is busy performing a conversion from the previous A D sample clock pulse It is up to the host application to handle this error by either ignoring the error or stopping acquisition To avoid this error use a slower sampling rate o
12. 50 kHz 50 kHz 100 kHz Multiple Analog Input Throughput 50 kHz 50 kHz 100 kHz Very high input impedance minimizes any source error To avoid overrun and underrun errors it is recommended that you do not run both the A D and D A subsystems at the same time using the maximum frequencies 103 Appendix A Analog Output Specifications Table 24 lists the analog output specifications for the DT9812 DT9813 and DT9814 Series modules Table 24 Analog Output Specifications DT9812 10V DT9812 10V OEM DT9812A DT9813A DT9812 2 5V DT9813 10V DT9814 10V DT9814A Feature Specifications Specifications Specifications Number of waveform analog output channels 2 2 2 Resolution 12 bit 12 bit 12 bit Data encoding Binary Twos Complement Twos Complement Nonlinearity 0 05 0 05 0 05 Differential nonlinearity LSB 1 LSB 1 LSB Inherent quantizing error 1 LSB 1 LSB 1 LSB Output range 0 to 2 44 V 10V 10 V Error Zero 1 mV 4 mV 4 mV Gain 0 1 0 2 0 2 Drift Zero bipolar 20 uV Y C 100 uV C 100 uV C Gain 100 ppm 100 ppm 100 ppm Throughput Continuously paced analog output mode 50 kHz 50 kHz 75 kHz Current output 2mA 2mA 2mA Output impedance lt 2000 lt 0 20 lt 0 20 Capacitive driver capability 1000 pF minimum 1000 pF minimum 1000 pF minimum Protection Short to ground Short to ground Short to ground Power on voltag
13. Digital Output 1 10 2 5 V Reference 30 Digital Output 0 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Analog Input CH15 7 Analog Input CH6 27 Analog Input CH14 6 Analog Input CH5 26 Analog Input CH13 5 Analog Input CH4 25 Analog Input CH12 4 Analog Input CH3 24 Analog Input CH11 3 Analog Input CH2 23 Analog Input CH10 2 Analog Input CH1 22 Analog Input CH9 1 Analog Input CHO 21 Analog Input CH8 115 Appendix B DT9814 10V and DT9814A Screw Terminal Assignments Table 34 lists the screw terminals for the DT9814 10V and DT9814A modules Table 34 DT9814 10V and DT9814A Screw Terminal Assignments Screw Screw Terminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Analog Input CH23 16 Counter 0 Gate 36 Analog Input CH22 15 Ground 35 Analog Input CH21 14 DAC 1 34 Analog Input CH20 13 DAC 1 Return 33 Analog Input CH19 12 DAC 0 32 Analog Input CH18 11 DAC 0 Return 31 Analog Input CH17 10 2 5 V Reference 30 Analog Input CH16 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Analog Input CH15 7 Analog Input CH6 27 Analog Input CH14 6 Analog Input CH5 26 Analog Input CH13 5 Analog Input CH4 25 Analog Input CH12 4 Analog Input CH3 24 Analog Input CH11 3 Analog Input CH2 23 Analog Input CH10 2 Analog Input CH1 22 Analog Input CH9 1 Analog Input CHO 21 Analog Input CH8 1
14. Module Edge to Edge Measurement Figure 15 shows how to connect counter timer signals to the module to perform an edge to edge measurement operation on one signal source The counter measures the number of counts between the start edge in this case a rising edge on the Counter 0 Gate signal and the stop edge in this case another rising edge on the Counter 0 Gate signal You specify the start edge and the stop edge in software Refer to page 74 for more information DT9812 DT9813 or DT9814 Series Module Ground 19 SignalSource Counter 0 Gate 46 Exp T In this example the software returns the number of counts between the two rising edges Figure 15 Connecting Counter Timer Signals for an Edge to Edge Measurement Operation You can use edge to edge measurement to measure the following characteristics of a signal Pulse width 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 24 MHz Period 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 24 MHz Frequency The number of periods per second You can calculate the frequency as
15. Visual Basic for NET programs 15 Visual Basic programs 15 Visual C programs 15 Visual C programs 15 voltage ranges 60 82 number of 82 W wiring signals analog inputs 34 analog outputs 35 digital inputs and outputs 36 edge to edge measurement 41 event counting 39 frequency measurement 40 methods 29 32 preparing 29 pulse output 42 recommendations 29 123 Index writing programs in C C 15 Visual Basic 15 Visual Basic NET 15 Visual C 15 Visual C 15 124
16. a The DT9812 2 5V module has a full scale input range of 0 to 2 44 V and supports gains of 1 2 4 8 and 16 to provide many effective input ranges The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules have a full scale input range of 10 V and support gains of 1 2 4 and 8 to provide many effective input ranges Refer to page 60 for more information 81 Chapter 6 Ranges 82 Table 15 DT9812 DT9813 and DT9814 Series Range Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Number of Voltage Ranges NumberOfRanges 1 1 0 0 0 0 Available Ranges Oto 2 44 V O to 2 44 V SupportedVoltageRanges or 10 V Jor 10 V8 Current Output Support SupportsCurrentOutput a The DT9812 2 5V module has a full scale input range of 0 to 2 44 V and supports gains of 1 2 4 8 and 16 to provide many effective input ranges The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules have a full scale input range of 10 V and support gains of 1 2 4 and 8 to provide many effective input ranges Refer to page 60 for more information Resolution Table 16 DT9812 DT9813 and DT9814 Series Resolution Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Software Programmable Resolution SupportsSoftwareResolution Number of Resolutions NumberOfResolutions 12 12 1P 1P 1 0 Available Resol
17. aaae CERE EN SEES aia eine N NER MEE VUA 59 Analog Input Channels nanen ERO eie e dus 59 Specifying a Single Analog Input Channel rnrn 59 Specifying One or More Analog Input Channels nne 59 Input Ranges and Gang ene 60 Input Sample Clock Sources rin ohini EEaren eee eens 61 Analog Input Conversion Modes 0 000 e cece eee ee 62 Single Value Operations lisse en 62 Continuous Scan Mode irase aseta Arde Rae RR 62 Iput Tig gers si AENA tub Murat ir Anata tS ncs 63 D ta Transfer x vede NT AY a ee get de ee Den DE 63 Data Format eder e etae ett tr lee gre tte tette ence tnt ace d 63 Converting a Binary Code toa Voltage nnna narru rraren 63 Converting a Twos Complement Code to a Voltage oooo oooooommmcm oo 64 Error Conditions sire Lr Rr naa he RATE NE RUPEE be Giada E Ed E 64 Analog Output Features c creme TRT ER ARE ANE A A e 65 Output Resolution iios eet AR a aee Su qae ae 65 Analog Output Channels n 65 Specifying a Single Analog Output Channel 000 0000008 65 Specifying Analog Output Channels sss 65 Output Ranges and Gains KE KRE E R T RRR rr 66 Output iggen DAR 66 Output Clock iai a ren A EE ara eur tecta ques 66 Output Conversion Modes aA RA T sin akee nagda ARE RN eene 66 Single Value Operations iissssssssss een 67 Continuous Output Mode x een 67 Data Transfertet eer pA Le RS ORE a REA EUER m ia 68 Contents Data Formativ
18. analog input channels in the channel list the maximum sampling rate is 3 125 kSamples s for each channel if the maximum sample rate is 50 kSamples s for the device or 6 25 kSamples s for each channel if the maximum sample rate is 100 kSamples s for the device 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 2 kHz signal specify a sampling frequency of at least 4 KHz Doing so avoids an error condition called aliasing in which high frequency input components erroneously appear as lower frequencies after sampling External clock An external clock is useful when you want to pace acquisitions at rates not available with the internal clock or when you want to pace at uneven intervals The minimum frequency of the external clock can be less than 30 Hz For the DT9812 2 5V DT9812 10V DT9812 10V OEM DT9813 10V and DT9814 10V the maximum frequency of the external clock is 40 kHz For the DT9812A DT9813A and DT9814A the maximum frequency of the external clock is 75 kHz Connect an external clock to the Ext Clock In signal on the module Conversions start on the rising edge of the external clock input signal Using software specify the clock source as external The clock frequency is always equal to the frequency of the external sample clock input signal that you connect to the module Note To avoid ov
19. as DT9812 10V Otherwise the series name such as DT9812 Series is used Intended Audience This document is intended for engineers scientists technicians or others responsible for using and or programming the modules for data acquisition operations in the Microsoft Windows XP Windows Vista or Windows 7 operating system It is assumed that you have some familiarity with data acquisition principles and that you understand your application How this Manual is Organized This manual is organized as follows Chapter 1 Overview describes the major features of the DT9812 DT9813 and DT9814 Series modules as well as the supported software and accessories for the modules Chapter 2 Setting Up and Installing the Module describes how to install the module and how to configure the device driver Chapter 3 Wiring Signals to the Module describes how to wire signals to the module 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 modules 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 device driver About this Manual 10 Chapter 7 Troubleshooting provides information that you can use to resolve problems w
20. 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 Troubleshooting Table 22 Troubleshooting Problems cont Symptom Possible Cause Possible Solution Device failure error reported The module cannot communicate with the Microsoft bus driver or a problem with the bus driver exists Check your cabling and wiring and tighten any loose connections see the instructions in Chapter 3 The module was removed while an operation was being performed Ensure that your 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 transducer connections see the instructions in Chapter 3 The transducer is set up for differential inputs while the module is wired for single ended inputs Check your wiring and ensure that your transducer connects to the single ended inputs of your module see the instructions in Chapter 3 The module is out of calibration The modules are calibrated at the factory The DT9812 2 5V does not require additional calibration If you want to readjust the calibration of any other DT9812 DT9813 o
21. contact discharge 8 kV air discharge 4 kV horizontal and vertical coupling planes EN61000 4 3 2002 Radiated electromagnetic fields 3 V m 80 to 1000 MHz 3 V m 1 4 GHz to 2 GHz 1 V m 2 GHz to 2 7 GHz EN61000 4 4 2004 Electrical Fast Transient Burst EFT 1 kV on data cables EN61000 4 6 2003 Conducted immunity requirements 3 Vrms on data cables 150 kHz to 80 MHz RoHS EU Directive 2002 95 EG Compliant as of July 1st 2006 111 Appendix A Mating Connector Specifications Table 31 lists the mating connector specifications for the DT9812 10V OEM module Table 31 Mating Connector Specifications for the DT9812 10V OEM Module Connector on Module Mating Connector Specifications USB Connector Bulgin part 14193 USB cable Analog I O Connector J3 Tyco partit 1658622 4 Digital I O Connector J4 Tyco partit 1658622 4 112 Screw Terminal and Connector Pin Assignments 113 Appendix B Screw Terminal Assignments This section lists the screw terminal assignments for the DT9812 2 5V DT9812 10V DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules DT9812 2 5V DT9812 10V and DT9812A Screw Terminal Assignments Table 32 lists the screw terminals for the DT9812 2 5V DT9812 10V and DT9812A modules Table 32 DT9812 2 5V DT9812 10V and DT9812A Screw Terminal Assignments Screw Screw Te
22. continuous scan 62 single value analog input 62 single value analog output 67 single value digital I O 70 output channel list 65 clock sources 66 pulses 86 ranges 66 output pulses 42 52 outputting pulses 74 P period 74 period measurement 41 physical specifications 110 pin assignments DT9812 10V OEM 117 post trigger acquisition mode 79 power specifications 110 preparing to wire signals 29 pulse output 42 rate generation 74 testing 52 types 72 pulse width 41 72 74 Q Quick Data Acq 15 running 45 quickDAQ 15 H ranges analog input 60 analog output 66 number of 82 rate generation 74 86 recommendations for wiring 29 resolution analog input 59 analog output 65 available 82 digital I O 70 number of 82 retrigger clock frequency 80 returning boards to the factory 93 RMA 93 running the Quick Data Acq application 45 S sample clock sources 61 sample rate 62 screw terminal assignments DT9812 10V 114 DT9812 2 5V 114 DT9813 10V 115 DT9814 10V 116 SDK 15 service and support procedure 92 simultaneous clocking 85 simultaneous start list 79 single buffer wrap mode 80 single channel analog input 59 analog output 65 single ended channels 81 number of 81 single value operations 79 analog input 62 analog output 67 digital I O 70 software trigger 63 66 84 specifications 101 analog input 102 analog output 104 Index clocks 109 counter timer 107 digital I O 106 environmental 110 matin
23. follows Frequency 24 MHz Number of Counts 41 Chapter 3 Rate Generation Figure 16 shows how to connect counter timer signals to the module to perform a rate generation continuous pulse output operation in this example an external gate is used DT9812 DT9813 or DT9814 Series Module Ground e D 19 Heater Controller Counter 0 Out pi a L V EC 16 External Counter 0 Gating d Gate Switch o Ground Figure 16 Connecting Counter Timer Signals for a Rate Generation Operation Using an External Gate 42 T Verifying the Operation of a Module Running the Quick DataAcq Application d ET REER RE meme 45 Testing Single Value Analog Input A cd ieee r KT R Seba er ERE SRI Ce Ee UE ebd ed 46 Testing single Value Analog Output i e ie ceret eem mne eek ttem is 47 Testing Continuos Analog Input oce er eet e San cee be eee TT ES 48 Testing Singe leValue Mie tal INPUT ck oc oi tA oE EA ha Hm Dee Ee Fai te 49 Testing Single Value Digital e T TTT 50 Testing Frequency Measurement 6c ae hee e a Kee ha 51 Testne Pulse Cap ici a wie Oa tees eee nd pae ees Se sects 52 43 Chapter 4 Set Up and Install the Module see Chapter 2 starting on page 19 Wire Signals to the Module see Chapter 3 starting on page 27 Verify the Operation of the Module this chapter Verifying the Operation of a Module Running the Q
24. high speed plot it during acquisition analyze it and or save it to disk for later analysis 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 DT9812 DT9813 or DT9814 Series module using Visual Studio 2003 or Visual Studio 2005 the class library complies with the DT Open Layers standard DataAcq SDK Use the Data Acq SDK if you want to use Visual Studio 6 0 and Microsoft C or C to develop your own application software for a DT9812 DT9813 or DT9814 Series module using Windows XP Windows Vista or Windows 7 the DataAcq SDK complies with the DT Open Layers standard DTx EZ Use this optional software package if you want to use ActiveX controls to access the capabilities of your modules using Microsoft Visual Basic or Visual C DTx EZ complies with the DT Open Layers standard DAQ Adaptor for MATLAB Data Translations DAQ Adaptor provides an interface between the MATLAB Data Acquisition DAQ subsystem from The MathWorks and Data Translation s DT Open Layers architecture Measure Foundry An evaluation version of this software is included or provided via a link on the OMNI CD DT Measure Foundry is drag and drop test and measurement application builder designed to give you top performance with ease of use development Order the full development version of this software package to develop your own application using re
25. input and digital output lines to these modules Connecting Digital Input Lines Figure 7 shows how to connect digital input signals lines 0 and 1 in this case to a DT9812 2 5V DT9812 10V or DT9812A module DT9812 2 5V DT9812 10V or DT9812A Module Ground 29 D 20 Digital Input 1 EN b 20 Digital Input 0 TTL Inputs Figure 7 Connecting Digital Inputs to the DT9812 2 5V DT9812 10V or DT9812A Module Figure 8 shows how to connect digital input signals lines 0 and 1 to a DT9812 10V OEM module DT9812 10V OEM Module Ground 9 6 2 0 Digital Input 1 fx X Digital Input 0 1p TTL Inputs tud Digital O Connector Figure 8 Connecting Digital Inputs to the DT9812 10V OEM Module 36 Wiring Signals to the Module Figure 9 shows how to connect digital input signals lines 0 and 1 to the screw terminals of a DT9813 10V or DT9813A module DT9813 10V or DT9813A Module 38 p Ground Digital Input 1 NN 35 Q 34 Q Digital Input 0 TTL Inputs Figure 9 Connecting Digital Inputs to the DT9813 10V Module Connecting Digital Output Signals Figure 10 shows how to connect digital output signals line 0 in this case to a DT9812 2 5V DT9812 10V DT9812A DT9813 10V or DT9813A module DT9812 2 5V DT9812 10V DT9812A DT9813 10V or DT9813A Module 38 30 Ground C Out LED On a g WW Digital Output
26. not provided with OEM versions of a module 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 your local distributor listed on Data Translation s web site www datatranslation com Note The DT9812 DT9813 and DT9814 Series modules are factory calibrated The DT9812 2 5V module requires no further adjustment If you want to recalibrate the DT9812 10V DT9812 10V OEM DT9813 10V DT9814 10V DT9812A DT9813A or DT9814A module refer to Chapter 8 starting on page 95 21 Chapter 2 Attaching Modules to the Computer This section describes how to attach a module to the host computer Note The DT9812 10V OEM module contains a 5 pin USB header instead of a standard USB connector see page 118 for the pin assignments of this header To connect to the DT9812 10V OEM module you need to purchase the Bulgin USB cable part 14193 This cable has a 5 pin header on one end for connecting to the module and a standard USB connector on the other end for connecting to the host computer Most computers have several USB ports that allow direct connection to USB devices If your application requires more modules than you have USB ports for you can expand the number of USB dev
27. of the counter You can count a maximum of 4 294 967 296 events before the counter rolls over to 0 and starts counting again You can use edge to edge measurement to measure the following characteristics of a signal Pulse width 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 24 MHz Period 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 24 MHz Frequency The number of periods per second You can calculate the frequency as follows Frequency 24 MHz Number of Counts Using software specify the counter timer mode as measure the C T clock source as internal the start edge as rising or falling gate and the stop edge as rising or falling gate Make sure that the signals are wired appropriately Refer to page 41 for an example of connecting an edge to edge measurement application Rate Generation Use rate generation mode to generate a continuous pulse output signal from Counter 0 Out this mode is sometimes referred to as continuous pulse output or pulse train output The pulse output operation is enabled whenever the Counter 0 Gate signal is active high le
28. the Toolbar to start the continuous analog input operation The application displays the values acquired from each channel in a unique color on the oscilloscope view Click Stop from the Toolbar to stop the operation Verifying the Operation of a Module Testing Single Value Digital Input To verify that the module can read a single digital input value do the following 1 gu qme Ww p9 Connect a digital input to digital input line 0 of port A on the DT9812 or DT9813 Series module Refer to page 36 for an example of how to connect a digital input In the Quick DataAcq application choose Digital Input from the Acquisition menu Select the appropriate DT9812 or DT9813 Series module from the Board list box Select digital input port A by clicking Port A Click Get The application displays the value of each digital input line in port A on the screen in both text and graphical form 49 Chapter 4 50 Testing Single Value Digital Output To verify that the module can output a single digital output value do the following 1 g e P N Connect a digital output to digital output line 0 of port B on the DT9812 or DT9813 Series module Refer to page 37 for an example of how to connect a digital output In the Quick DataAcq application select Digital Output from the Control menu Select the appropriateDT9812 or DT9813 Series module from the Board list box Select digital output port B by clicking Port B Click the app
29. to output data from one analog output channel continuously specify either 0 DACO or 1 DAC1 in the channel output list If you want to output data to both analog output channels continuously specify the output channel list in the following order 0 1 Then use software to specify the data flow mode as Continuous for the D A subsystem refer to page 66 for more information on continuous analog output operations 65 Chapter 5 66 Output Ranges and Gains The DT9812 2 5V module provides a fixed output range of 0 to 2 44 The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules provide a fixed output range of 10 V Through software specify the range for the entire analog output subsystem 0 to 2 44 V for the DT9812 2 5 V module or 10 V for the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules and specify a gain of 1 for each channel Output Trigger A trigger is an event that occurs based on a specified set of conditions The modules support a software trigger for starting analog output operations Using a software trigger the module starts outputting data when it receives a software command Using software specify the trigger source for the D A subsystem as a software trigger Output Clock When in continuous output mode described on page 67 you can update both analog output channels simultaneously using the internal clock on the module
30. 0 500 Q BV E Figure 10 Connecting Digital Outputs to the DT9812 2 5V DT9812 10V DT9812A DT9813 10V or DT9813A Module Note While the DT9812 Series modules have 8 digital outlines the DT9813 10V module has only four digital output lines screw terminals 30 through 33 37 Chapter 3 Figure 11 shows how to connect a digital output signal to a DT9812 10V OEM module DT9812 10V OEM Module 18 o Ground Out LED On 10 Digital Output 0 C Q Digital UO Connector 5V i al Figure 11 Connecting Digital Outputs to the DT9812 10V OEM Module Wiring Signals to the Module Connecting Counter Timer Signals DT9812 DT9813 and DT9814 Series modules provide one counter timer that you can use for the following operations Eventcounting Frequency measurement Edge to edge measurement Continuous pulse output rate generation This section describes how to connect counter timer signals for these operation modes Refer to page 71 for more information about using the counter timers Event Counting Figure 12 shows how to connect counter timer signals to the module to perform an event counting operation using an external gate In this example the counter counts the number of rising edges that occur on the Counter 0 In signal when the Counter 0 Gate signal is in the active state as specified by software Refer to page 73 for more information DT9812
31. 1 DT9812 DT9813 and DT9814 Series Counter Timer Options DT9812 DT9813 and DT9814 Series Cascading Support SupportsCascading A D D A DIN DOUT C T QUAD Event Count Mode Support SupportsCount Yes Generate Rate Mode Support SupportsRateGenerate Yes One Shot Mode Support SupportsOneShot Repetitive One Shot Mode Support SupportsOneShotRepeat Up Down Counting Mode Support SupportsUpDown Edge to Edge Measurement Mode Support SupportsMeasure Yes Continuous Edge to Edge Measurement Mode Support SupportsContinuousMeasure High to Low Output Pulse Support SupportsHighToLowPulse Yes Low to High Output Pulse Support SupportsLowToHighPulse Variable Pulse Width Support SupportsVariablePulseWidth None internal Gate Type Support SupportsGateNone Yes High Level Gate Type Support SupportsGateHighLevel Yes Low Level Gate Type Support SupportsGateLowLevel High Edge Gate Type Support SupportsGateHighEdge Yes Low Edge Gate Type Support SupportsGateLowEdge Yes Level Change Gate Type Support SupportsGateLevel Clock Falling Edge Type SupportsClockFalling Clock Rising Edge Type SupportsClockRising Gate Falling Edge Type SupportsGateFalling Yes Supported Device Driver Capabilities Table 21 DT9812 DT9813 and DT9814 Series Counter Timer Options cont D A DIN DOUT C T QUAD
32. 14 Series modules Table 29 Power Physical and Environmental Specifications Feature DT9812 2 5V Specifications DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V DT9814A Specifications USB 5 V out pin 20 100 mA maximum 100 mA maximum Power 5 V Enumeration Operation Physical Dimensions board Dimensions box with screw terminals and feet lt 100 mA lt 100 mA 100 mm L x 100 mm W x 15 5 mm H 107 7 mm L x 100 mm W x 33 5 mm H lt 100 mA lt 175 mA 100 mm L x 100 mm W x 15 5 mm H 107 7 mm L x 100 mm W x 33 5 mm H Weight board 65 3 0 65 3 g Weight box with screw terminals and feet 138 4 y 138 4 0 Environmental Operating temperature range 0 to 55 C 0 to 55 C Storage temperature range 40 to 85 C 40 to 85 C Relative humidity to 95 non condensing to 95 non condensing 110 Specifications Regulatory Specifications Table 30 lists the regulatory specifications for the DT9812 DT9813 and DT9814 Series modules Table 30 Regulatory Specifications DT9812 Series DT9813 Series DT9814 Series Feature Specifications Emissions EMI FCC Part 15 Class A EN55011 2007 Based on CISPR 11 2003 A2 2006 Immunity EN61326 1 2006 Electrical Equipment for Measurement Control and Laboratory Use EMC Requirements EN61000 4 2 2001 Electrostatic Discharge ESD 4 kV
33. 16 Screw Terminal and Connector Pin Assignments DT9812 10V OEM Connector Pin Assignments Table 35 lists the pin assignments for the Analog I O connector on the DT9812 10V OEM module Table 35 Analog I O Connector Pin Assignments on the DT9812 10V OEM Module Pin Signal Pin Signal 20 USB 5 V Out 19 Ground 18 Counter 0 In 17 Counter 0 Out 16 Counter 0 Gate 15 Ground 14 DAC 1 13 DAC 1 Return 12 DAC 0 11 DAC 0 Return 10 2 5 V Reference 9 Analog Ground 8 Analog Input CH7 7 Analog Input CH6 6 Analog Input CH5 5 Analog Input CH4 4 Analog Input CH3 3 Analog Input CH2 2 Analog Input CH1 1 Analog Input CHO Table 36 lists the pin assignments for the Digital I O connector on the DT9812 10V OEM module Table 36 Digital I O Connector Pin Assignments on the DT9812 10V OEM Module Pin Signal Pin Signal 20 Ext Trigger 19 Ext Clock 18 Ground 17 Digital Output 7 16 Digital Output 6 15 Digital Output 5 14 Digital Output 4 13 Digital Output 3 12 Digital Output 2 11 Digital Output 1 10 Digital Output 0 9 Ground 8 Digital Input 7 7 Digital Input 6 6 Digital Input 5 5 Digital Input 4 4 Digital Input 3 3 Digital Input 2 2 Digital Input 1 1 Digital Input O 117 Appendix B Table 37 lists the pin assignments for the USB 5 pin header Table 37 USB 5 Pin Header Pin Signal 5 V D D Ground
34. DATA TRANSLATION UM 20769 R DT9812 DT9813 and DT9814 Series User s Manual Fourteenth Edition July 2011 Data Translation Inc 100 Locke Drive Marlboro MA 01752 1192 508 481 3700 www datatranslation com Fax 508 481 8620 E mail info datx com Copyright O 2006 2011 by Data Translation Inc All rights reserved Information furnished by Data Translation Inc is believed to be accurate and reliable however no responsibility is assumed by Data Translation Inc for its use nor for any infringements of patents or other rights of third parties which may result from its use No license is granted by implication or otherwise under any patent rights of Data Translation Inc Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer software clause at 48 C F R 252 227 7013 or in subparagraph c 2 of the Commercial Computer Software Registered Rights clause at 48 C F R 52 227 19 as applicable Data Translation Inc 100 Locke Drive Marlboro MA 01752 Data Translation is a registered trademark of Data Translation Inc DT Open Layers DT Open Layers for NET Class Library DataAcq SDK OMNI CD LV Link and DTx EZ are trademarks of Data Translation Inc All other brand and product names are trademarks or registered trademarks of their respective companies Radio an
35. DT9812 2 5V DT9812 10V DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A Module 29 Wiring Signals to the DT9812 10V OEM Module e 32 Connecting Analog Input Signals eee 34 Connecting Analog Output Signals 35 Connecting Digital I O Signals 0 36 Connecting Digital Input Lines 2 e 36 Connecting Digital Output Signals 37 Connecting Counter Timer Signals sese 39 Event Counting 5 exce RT uet We elu att R Tg Ane TB e Ra REBEL laa 39 Frequency Measurements criti 0 0 n 40 Edge to Edge Measurement 060 c ccc een eens 41 Rate Generation s errre Eb EP reb ka em ka UE le Raed ERU M DIE avs 42 Contents Chapter 4 Verifying the Operation of a Module Ll su l 43 Running the Quick DataAcq Application ssssssss ee 45 Testing Single Value Analog Input ee 46 Testing Single Value Analog Output 00 000 eee 47 Testing Continuous Analog Input e e 48 Testing Single Value Digital Input 0 0 0 0 e eee eee eee 49 Testing Single Value Digital Output 0 0 0 50 Testing Frequency Measurement 600 c eee eect tenet eens 51 Testing Pulse Output eir sisse voce gies sags eme a ek ea n E me ES BEG aS 52 Part 2 Using Your Module lleleeeeeeeess 53 Chapter 5 Principles of Operation cece eee eee eee eee 55 Analog Input Features ehe rte ee ne aet aee Bela wists hades ware ore eta ena 59 Input Resolution Haat
36. DT9813 or DT9814 Series Module Ground Da peo Counter 0 In Q 18 External Counter Gating 0 Gate Switch p Ground Figure 12 Connecting Counter Timer Signals for an Event Counting Operation Using an External Gate Figure 13 shows how to connect counter timer signals to the module to perform an event counting operation without using a gate also called a software gate The counter counts the number of rising edges that occur on the Counter 0 In signal 39 Chapter 3 DT9812 DT9813 or DT9814 Series Module 19 Ground Counter 0 In Signal Source Figure 13 Connecting Counter Timer Signals for an Event Counting Operation Without Using a Gate Frequency Measurement One way to measure frequency is to connect a pulse of a known duration to the Counter 0 Gate signal as shown in Figure 14 In this case the frequency of the Counter 0 In signal is the number of counts divided by the period of the signal connected to the Counter 0 Gate input DT9812 DT9813 or DT9814 Series Module Ground D 19 Signal Source Counter 0 In Number of pulses counted during gate period 18 D 16 Counter 0 Gate Known Signal Determines period Source for count Figure 14 Connecting Counter Timer Signals for a Frequency Measurement Operation Using an External Pulse 40 Wiring Signals to the
37. SE Support SupportsSingleEnded Yes Yes SE Channels MaxSingleEndedChannels 8 16 or 2422 0 0 0 0 DI Support SupportsDifferential Yes Yes Yes DI Channels MaxDifferentialChannels Oor1 gt Oor19 1 0 Maximum Channel Gain List Depth CGLDepth 8 16 or 2422 1 1 1 0 Simultaneous Sample and Hold Support SupportsSimultaneousSampleHold Channel List Inhibit SupportsChannelListInhibit a The DT9812 2 5V DT9812 10V DT9812 10V OEM and DT9812A modules provide 8 single ended analog inputs The DT9813 10V and DT9813A modules provide 16 single ended inputs The DT9814 10V and DT9814A modules provide 24 single ended analog input channels b DT9812 Series modules support one DIN subsystem of 8 digital input lines The DT9813 Series modules support one DIN subsystem consisting of 4 digital input lines The DT9814 Series modules do not support the DIN subsystem c DT9812 Series modules support one DOUT subsystem of 8 digital output lines The DT9813 Series modules support one DOUT subsystem consisting of 4 digital output lines The DT9814 Series module do not support the DOUT subsystem Gain Table 14 DT9812 DT9813 and DT9814 Series Gain Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Programmable Gain Support SupportsProgrammableGain Yes Number of Gains NumberOfSupportedGains 4or58 1 1 0 0 Gains Available 1 2 4 SupportedGains 8 16 41 1 1
38. Support Options DT9812 DT9813 and DT9814 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 83 Chapter 6 Triggers 84 Table 19 DT9812 DT9813 and DT9814 Series Trigger Options DT9812 DT9813 and DT9814 Series Software Trigger Support SupportsSoftwareTrigger A D Yes D A Yes DIN DOUT C T Yes QUAD External Positive TTL Trigger Support SupportsPosExternalTTLTrigger Yes External Negative TTL Trigger Support SupportsNegExternalTTLTrigger Yes External Positive TTL Trigger Support for Single Value Operations SupportsSvPosExternalTTLTrigger External Negative TTL Trigger Support for Single Value Operations SupportsSvNegExternalTTLTrigger Positive Threshold Trigger Support SupportsPosThresholdTrigger Negative Threshold Trigger Support SupportsNegThresholdTrigger Digital Event Trigger Support SupportsDigitalEventTrigger Supported Device Driver Capabilities Clocks Table 20 DT9812 DT9813 and DT9814 Series Clock Option
39. T9814 Series modules Table 27 External A D Trigger Specifications DT9812 Series DT9813 Series DT9814 Series Feature Specifications Input type Low level or falling edge sensitive Logic family TTL Inputs Level sensitive Input logic load 1 TTL Load High input voltage 2 4 V min Low input voltage 0 8 V max Low input current 0 4 mA max Minimum pulse width High 200 ns Low 200 ns Triggering modes Single scan Yes Continuous scan Yes Specifications External Clock Specifications Table 28 lists the external A D clock specifications DT9812 DT9813 and DT9814 Series modules Table 28 External A D Clock Specifications DT9812 10V DT9812 10V OEM DT9813 10V DT9814 10V DT9812A DT9813A DT9814A Feature Specifications Specifications Input type Rising edge sensitive Rising edge sensitive Logic family TTL TTL Inputs Input logic load Input termination High input voltage Low input voltage Low input current Level sensitive 1 TTL Load 2 4 V min 0 8 V max 0 4 mA max Level sensitive 1 TTL Load 2 4 V min 0 8 V max 0 4 mA max Oscillator frequency 40 kHz maximum 75 kHz maximum Minimum pulse width High Low 200 ns 200 ns 200 ns 200 ns 109 Appendix A Power Physical and Environmental Specifications Table 29 lists the power physical and environmental specifications for the DT9812 DT9813 and DT98
40. The DT9812 DT9813 and DT9814 Series Device Driver provides support for the analog input A D analog output D A digital input DIN digital output DOUT and counter timer C T subsystems For information on how to configure the device driver refer to page 25 Table 8 DT9812 DT9813 and DT9814 Series Subsystems DT9812 DT9813 and DT9814 Series a DOUT Ee Total Subsystems on Module a The DIN subsystem contains eight digital input lines 0 to 7 on the DT9812 Series modules and four digital input lines 0 to 3 on the DT9813 Series modules There is no DIN subsystem on the DT9814 Series modules b The DOUT subsystem contains eight digital output lines 0 to 7 on the DT9812 Series modules and four digital output lines 0 to 3 on the DT9813 Series modules There is no DOUT subsystem on the DT9814 Series modules The tables in this chapter summarize the features available for use with the DT Open Layers for NET Class Library and the DT9812 DT9813 and DT9814 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
41. Using software specify the clock source for the D A subsystem as internal and specify the frequency at which to update the analog output channels For the DT9812 10V DT9812 10V OEM DT9813 10V DT9814 10V the output frequency ranges between 30 Hz and 50 kHz For the DT9812A DT9813A and DT9814A the output frequency ranges between 30 Hz and 75 kHz Note The output clock frequency that you specify is frequency at which both analog output channels are simultaneously updated To avoid overrun and underrun errors it is recommended that you do not run both the A D and D A subsystems at the same time using the maximum frequencies Output Conversion Modes The DT9812 DT9813 and DT9814 Series modules support the following output conversion modes Single value output operations Continuous output operations Principles of Operation Single Value Operations Single value operations are the simplest to use but offer the least flexibility and efficiency Use software to specify the analog output channel and the value to output from the analog output channel Since a single value operation is not clocked you cannot specify a clock source trigger source or buffer Single value operations stop automatically when finished you cannot stop a single value operation Continuous Output Mode Use continuously paced analog output mode if you want to accurately control the period between D A conversions or write a waveform to
42. a amp wo hv Shield 118 A A D subsystem specifications 102 aliasing 61 Analog I O connector pin assignments DT9812 10V OEM 32 117 analog input calibrating 98 channel list 59 channels 59 conversion modes 62 data format 63 data transfer 63 error conditions 64 gain 60 ranges 60 resolution 59 sample clock sources 61 single ended operations 62 triggers 63 wiring 34 analog input features testing 46 48 analog output calibrating 100 channel list 65 channels 65 clock sources 66 conversion modes 66 67 data format 68 data transfer 68 error conditions 69 gain 66 ranges 66 resolution 65 single value operations 67 subsystem specifications 104 trigger 66 wiring 35 analog output features testing 47 applet Open Layers Control Panel 91 application wiring analog inputs 34 analog outputs 35 digital inputs and outputs 36 edge to edge measurement 41 Index event counting 39 frequency measurement 40 pulse output 42 B base clock frequency 85 BaseClockFrequency 85 binary data encoding 80 analog input 63 analog output 68 buffers 80 inprocess flush 80 single wrap mode 80 C C C programs 15 C T see counter timer 107 cables USB 22 23 calibrating the module analog input subsystem 98 analog output subsystem 100 running the calibration utility 97 CGLDepth 81 changing the name of a module 25 channel list for analog input channels 59 for analog output channels 65 channel type differentia
43. a Re VE UEBER SUR A RIPE eed 68 Converting a Voltage into a Binary Code 000 00 e eee 68 Converting a Voltage to a Twos Complement Code ssuuuses 69 Error Conditions 2 rper iaa 69 Digital I O Feat res v ces sr s 9 e ae ya ya y E Rr 70 Digital TZO MES hic Aves etc st A t UR RES Oe ater e D M Aia 70 Resol tiot i o res Pash Ree A DONI Re le UE 70 Operation Modes 354 sete Re T RR RES aaa C be RUNS du C edad NUR 70 Counter Timer Features ue cote IR SS a CE E RO lx 71 C T Channels eea e beste el ele e Poe eese Sete eds 71 CLAY Clock Sources i e ep eave bile eae eg dk EN PE RT qu E dos de 71 Gates Types S oie esata Roti estoit A 72 Pulse Duty Cycles ER reb ae EP RUND eee reg 72 Counter Timer Operation Modes eee 73 Event Counting xsv xe pancia v reete mea a Ha eden actes e asit ls ils 73 Frequency Measurement o 73 Edge to Edge Measurement cessor reni crum mogi k a wa eea aia e 74 Rate Generatlon vec SA QNEM VUE E Aa A 74 Chapter 6 Supported Device Driver CapabilitieS 77 Data Flow and Operation Options isssssssssss n 79 Buffering isset erp LM eR EU eden s pU saad xA cs muda ce uu deed s 80 Triggered Scan Mode a M d a estu id DIA 80 Data Encoding reet eL SR a A A eoe ea 80 Channels 3 4 edd ebd reete br rre eee e n qe REPAS 81 Gan deese asd s m e t e RE sos dhe 81 Ranges I TEE 82 Resolution cede e DDR POESIE NEUE wage en d HR qtu Neb RR s x 82 Thermoco
44. a format and transfer described on page 63 Error conditions described on page 64 Input Resolution The DT9812 DT9813 and DT9814 Series modules provide a resolution of 12 bits Note that the resolution is fixed you cannot program it in software Analog Input Channels The DT9812 2 5V DT9812 10V DT9812 10V OEM and DT9812A modules provide eight single ended analog input channels The DT9813 10V and DT9813A modules provides 16 single ended analog inputs The DT9814 10V and DT9814A modules provide 24 single ended analog input channels The modules can acquire data from a single analog input channel or from a group of analog input channels 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 62 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 You can group the channels in the list sequentially starting either with 0 or with any other analog input channel or randomly You can also specify a single channel or the same channel more than once in the list 59 Chapter 5
45. a gain of 2 for the channel the effective input range for this channel is then 0 to 1 22 V which provides the best sampling accuracy for that channel You can specify the gain in a single value operation or specify the gain for each entry in the channel list Principles of Operation Input Sample Clock Sources You can use one of the following clock sources to pace an analog input operation Internal clock Using software specify the clock source as internal and the clock frequency at which to pace the operation For the DT9812 2 5V DT9812 10V DT9812 10V OEM DT9813 10V and DT9814 10V the minimum frequency of the internal clock is 30 Hz the maximum frequency of the internal clock is 50 kHz For the DT9812A DT9813A and DT9814A the minimum frequency of the internal clock is 30 Hz the maximum frequency of the internal clock is 100 kHz Because these modules have a multiplexed A D architecture if you specify two analog input channels in the channel list the maximum sampling rate per channel is divided by the number of channels in the channel list For example if the maximum sample rate for the module is 50 kSamples s and you have two channels in the channel list the maximum sample rate is 25 kSamples s for each channel Likewise if the maximum sample rate for the module is 100 kSamples s and you have two channels in the channel list the maximum sample rate is 50 kSamples s for each channel Further if you specify 16
46. al hardware LV Link An evaluation version of LV Link is included on the OMNI CD Use this software package if you want to use the LabVIEW graphical programming language to access the capabilities of your modules 15 Chapter 1 Getting Started Procedure The flow diagram shown in Figure 1 illustrates the steps needed to get started using the modules This diagram is repeated in each chapter the shaded area in the diagram shows you where you are in the getting started procedure C Set Up and Install the Module see Chapter 2 starting on page 19 Wire Signals to the Module see Chapter 3 starting on page 27 C Verify the Operation of the Module see Chapter 4 starting on page 43 E Figure 1 Getting Started Flow Diagram 16 Part 1 Getting Started 2 Setting Up and Installing the Module O ORO E 21 Attaching Modules to the Computer SEE KER tee eee erre RR entes 22 Changing the Name of a Module Optional ce sc eg egen RRR er RE RR RE 25 Chapter 2 20 Set Up and Install the Module N this chapter E Wire Signals to the Module see Chapter 3 starting on page 27 Verify the Operation of the Module see Chapter 4 starting on page 43 Setting Up and Installing the Module Unpacking Open the shipping box and verify that the following items are present e DT9812 DT9813 or DT9814 Series module OMNI CD e USB cable
47. als Connect an external clock with a maximum recommended frequency of 6 MHz to the Counter 0 In signal on the module Using software specify the C T clock source as external and specify a clock divider between 2 and 65536 to determine the actual frequency at which to pace the counter timer operation For example if you connect a 6 MHz external C T clock and use a clock divider of 2 the resulting C T output frequency is 3 MHz Counter timer operations start on the falling edge of the Counter 0 In signal 71 Chapter 5 Gate Types The edge or level of the Counter 0 Gate signal determines when a counter timer operation is enabled Using software you can specify one of the following gate types None A software command enables any counter timer operation immediately after execution e Logic high level external gate input Enables a counter timer operation when Counter 0 Gate is high and disables a counter timer operation when Counter 0 Gate is low Note that this gate type is used for event counting and rate generation modes refer to page 73 for more information about these modes e Falling edge external gate input Enables a counter timer operation when a high to low transition is detected on the Counter 0 Gate signal In software this is called a low edge gate type Note that this gate type is used for edge to edge measurement mode refer to page 74 for more information about these modes e Rising edge external gat
48. brating the Analog Input Subsystem This section describes how to use the DT9812 Series Calibration Utility to calibrate the analog input subsystem of a DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A module Connecting a Precision Voltage Source To calibrate the analog input circuitry you need to connect an external precision voltage source to Analog In 0 AD Ch0 of the module 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 Configuration tab of the DT9812 Series Calibration Utility 2 Set the voltage supply on AD Ch0 to 0 V 3 Click Start Auto Calibration A message appears notifying you to verify that 0 V is applied to AD Ch0 4 Check that the supplied voltage to AD Ch0 is OV 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 AD Ch 0 to 9 375 V 5 Check that the supplied voltage to AD Ch0 is 9 375V and then click OK The gain value is calibrated 6 Click OK to finalize the analog input calibration process 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 Using the Manual Calibration Procedure
49. buffer size or allocating more output buffers Note If no new data is available to be output by the analog output channels the last value that was written to the analog output channels continues to be output 69 Chapter 5 Digital I O Features This section describes the following features of digital I O operations Digital I O lines Resolution Operation modes Digital I O Lines The DT9812 Series modules provide 8 dedicated digital input lines and 8 dedicated digital output lines The DT9813 Series modules provide 4 dedicated digital input lines and 4 dedicated digital output lines The DT9814 Series modules do not support digital I O operations Using DT Open Layers you can specify the digital line that you want to read or write in a single value digital I O operation Refer to page 70 for more information about single value operations 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 Resolution The resolution of the digital ports on the DT9812 Series modules is fixed at 8 bits The resolution of the digital ports on the DT9813 Series modules is fixed at 4 bits Operation Modes The DT9812 and DT9813 Series modules support single value digital I O operations For a single value operation use software to specify the digital I O port the gain is ignored Data is then read from or writ
50. d 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 Canadian Depart
51. e 0V 5 mV 0V 10 mV 0 V 10 mV Settling time to 0 01 of FSR 20 us 20 us 15 us Slew rate 2V us 2 V us 2 V us Glitch energy 1 uV sec 1 uV sec 1 uV sec ESD protection per spec Arc 8 kV 8 kV 8 kV Contact 4 kV 4 kV 4 kV Specifications Table 24 Analog Output Specifications cont DT9812 10V DT9812 10V OEM DT9812A DT9813A DT9812 2 5V DT9813 10V DT9814 10V DT9814A Feature Specifications Specifications Specifications Monotonicity Yes Yes Yes Output Clock Internal Yes Yes Yes External No No No Trigger Source Internal Yes Yes Yes External No No No a To avoid overrun and underrun errors it is recommended that you do not run both the A D and D A subsystems at the same time using the maximum frequencies 105 Appendix A Digital I O Specifications Table 25 lists the digital I O specifications for the DT9812 and DT9813 Series modules The DT9814 10V module does not support digital I O operations Table 25 Digital I O Specifications 106 Feature DT9812 Series DT9813 Series Specifications Number of digital I O lines DT9812 Series 16 8 in 8 out DT9813 Series 8 4 in 4 out Number of ports DT9812 Series 2 8 bit DT9813 Series 2 4 bit Input termination No Logic family TTL Logic sense Positive true Inputs Input type Level sensitive Input logic load 1 TTL Load High input voltage 2 4 V min Low input vo
52. e DT9813 10V and DT9813A module support 16 single ended analog input channels the DT9814 10V and DT9814A support 24 single ended analog input channels Figure 5 shows how to connect single ended voltage input signals channels 0 and 1 in this case to the module DT9812 DT9813 or DT9814 Series Module G Analog Ground q 9 Analog In 1 O 2 L Analog In 0 D 1 s r Signal Source For the DT9812 10V OEM module connect to the Analog I O connector Figure 5 Connecting Single Ended Analog Inputs Wiring Signals to the Module Connecting Analog Output Signals The DT9812 DT9813 and DT9814 Series modules support two analog output channels DACO and DAC1 Figure 6 shows how to connect an analog output voltage signal DACO in this case to one of these modules DT9812 DT9813 or DT9814 Series Module DACO D 12 p 11 Load DACO Return For the DT9812 10V OEM module connect to the Analog I O connector Figure 6 Connecting Analog Outputs 35 Chapter 3 Connecting Digital I O Signals The DT9812 Series modules support eight fixed digital input lines and eight fixed digital output lines The DT9813 10V and DT9813A modules support four fixed digital input lines and four fixed digital output lines The DT9814 10V and DT9814A modules do not support digital I O operations The following sections describe how to connect digital
53. e input Enables a counter timer operation when a low to high transition is detected on the Counter 0 Gate signal In software this is called a high edge gate type Note that this gate type is used for edge to edge measurement operations refer to page 74 for more information about these modes Pulse Duty Cycles Counter timer output signals from the modules are high to low going signals The duty cycle or pulse width indicates the percentage of the total pulse output period that is active In rate generation mode the duty cycle is fixed at 5076 for the DT9812 DT9813 and DT9814 Series modules Figure 22 illustrates a high to low going output pulse with a duty cycle of 50 Total Pulse Period lt gt high pulse low pulse Active Pulse Width Figure 22 Example of a Pulse Output Signal with a 50 Duty Cycle High to Low Going 72 Principles of Operation Counter Timer Operation Modes The modules support the following counter timer operation modes Eventcounting Frequency measurement Edge to edge measurement e Rate generation Event Counting Use event counting mode if you want to count the number of falling edges that occur on Counter 0 In when the gate is active high level gate or software gate Refer to page 72 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 For event counti
54. en you start the analog input operation 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 module detects a high to low negative transition on the Ext Trigger In signal connected to the module Using software specify an external negative digital TLL trigger Data Transfer Before you begin acquiring data you must allocate buffers to hold the data A buffer done event is returned whenever a buffer is filled This allows you to move and or process the data as needed We recommend that you allocate a minimum of two buffers for a continuous analog input operation Data is written to multiple allocated input buffers continuously when no more empty buffers are available the operation stops The data is gap free Data Format The DT9812 2 5V module uses binary data encoding to represent unipolar input ranges The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules use twos complement encoding to represent bipolar input ranges In software the analog input value is returned as a code To convert the code to voltage use the information in the following subsections Converting a Binary Code to a Voltage To convert a binary code into a voltage on the DT9812 2 5V module use the following formula Voltage 2 44 Code 4096
55. er Support SupportsBuffering A D Yes D A Yes DIN DOUT C T QUAD Single Buffer Wrap Mode Support SupportsWrapSingle Yes Inprocess Buffer Flush Support SupportsInProcessFlush Yes Triggered Scan Mode Table 11 DT9812 DT9813 and DT9814 Series Triggered Scan Mode Options DT9812 DT9813 and DT9814 Series Triggered Scan Support SupportsTriggeredScan A D D A DIN DOUT C T QUAD Maximum Number of CGL Scans per Trigger MaxMultiScanCount Maximum Retrigger Frequency MaxRetriggerFreq Minimum Retrigger Frequency MinRetriggerFreq Data Encoding 80 Table 12 DT9812 DT9813 and DT9814 Series Data Encoding Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Binary Encoding Support SupportsBinaryEncoding Yes Yes Yes Yes Yes Twos Complement Support SupportsTwosCompEncoding Yes Yes Returns Floating Point Values ReturnsFloats a The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules use twos complement encoding the DT9812 2 5V module uses binary encoding Supported Device Driver Capabilities Channels Table 13 DT9812 DT9813 and DT9814 Series Channel Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Number of Channels NumberOfChannels 8 16 or 2422 Oori loore 11 0
56. errun and underrun errors it is recommended that you do not run both the A D and D A subsystems at the same time using the maximum frequencies 61 Chapter 5 Analog Input Conversion Modes The DT9812 DT9813 and DT9814 Series modules support the following conversion modes Single value operations Continuous scan operations Single Value Operations Single value operations are the simplest to use Using software you specify the range gain and 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 Use continuous scan mode if you want to accurately control the period between conversions of individual channels in a channel list When it receives a software trigger the module cycles through the channel list acquiring and converting the data for each entry in the list this process is defined as the scan The module then wraps to the start of the channel list and repeats the process continuously until either the allocated buffers are filled or until you stop the operation Refer to page 63 for more information about buffers The conversion rate is determined by the frequency of the internal sample clock refer to page 61 for more information abo
57. 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 5 Repeatthese steps until you have attached the number of expansion hubs up to five and modules up to four per hub that you require Refer to Figure 3 The operating system automatically detects the USB devices as they are installed DT9812 DT9813 or DT9814 Series Module DT9812 DT9813 or DT9814 Series Module ni USB Cable 4 p N k Expansion Hubs iu Power Supply for Hub Host Computer r USB Cable Power Supply a for Hub DT9812 DT9813 or DT9814 Series Module DT9812 DT9813 or DT9814 Series Module USB Cables Figure 3 Attaching Multiple DT9812 DT9813 and or DT9814 Series Modules Using Expansion Hubs Setting Up and Installing the Module Changing the Name of a Module Optional To change the name of a module configure the device driver as follows 1 2 From the Windows Start menu select Settings Control Panel From the Control Panel double click Open Layers Control Panel The Data Acquisition Control Panel dialog box appears Click the DT9812 DT9813 or DT9814 Series module that you want to rename and then 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 appl
58. g connector 112 physical 110 power 110 regulatory 111 triggers 108 stopping an operation 67 SupportedGains 81 SupportedResolutions 82 SupportedVoltageRanges 82 SupportsBinary Encoding 80 SupportsBuffering 80 SupportsContinuous 79 SupportsCount 86 SupportsDifferential 81 SupportsExternalClock 85 SupportsGateFalling 86 SupportsGateHighEdge 86 SupportsGateHighLevel 86 SupportsGateLowEdge 86 SupportsGateNone 86 SupportsGateRising 87 SupportsHighToLowPulse 86 SupportsInProcessFlush 80 SupportsInternalClock 85 SupportsInterrupt 87 SupportsMeasure 86 SupportsNegExternalTTL Trigger 84 SupportsPosExternalTTL Trigger 84 SupportsProgrammableGain 81 SupportsRateGenerate 86 SupportsSimultaneousClocking 85 SupportsSimultaneousStart 79 SupportsSingleEnded 81 SupportsSingleValue 79 SupportsSoftwareTrigger 84 SupportsTwosCompEncoding 80 SupportsWrapSingle 80 T technical support 92 throughput maximum 85 minimum 85 transferring data analog input 63 analog output 68 triggered scan number of scans per trigger 80 retrigger frequency 80 triggers analog input 63 external 63 external negative digital 84 external positive digital 84 software 63 66 84 specifications 108 troubleshooting procedure 90 service and support procedure 92 troubleshooting table 90 TTL trigger 63 twos complement data encoding 80 analog input 64 analog output 69 U units counter timer 71 unpacking 21 USB 5 pin header 118 USB cable 22 23 V
59. ge 89 for more information If you are outside the United States or Canada call your local distributor whose number is listed on our web site www datatranslation com 11 About this Manual 12 Overview Key Hard rare Features ii Eua tore A A A AA De eel els 14 supported DONNAIT es seo cessas he Dre tr tee Rer OR REIP REED e 15 16 Getting Started Procedure 13 Chapter 1 14 Key Hardware Features The DT9812 DT9813 and DT9814 Series modules are economy multifunction mini instruments Table 1 lists the key features of each module Table 1 Key Features of the DT9812 DT9813 and DT9814 Series Modules Analog Input Analog Output Module Analog Inputs Analog Outputs I O Range Sample Rate Update Rate Digital UO DT9812 2 5V 8 SE 2 O to 2 44 V 50 kS s 50 kS s 8 in 8 out DT9812 10V and 8 SE 2 10 V 50 kS s 50 kS s 8 in 8 out DT9812 10V OEM DT9812A 8 SE 2 10V 100 kS s 75 kS s 8 in 8 out DT9813 10V 16 SE 2 10 V 50 kS s 50 kS s 4 in 4 out DT9813A 16 SE 2 10 V 100 kS s 75 kS s 4 in 4 out DT9814 10V 24 SE 2 10 V 50 kS s 50 kS s DT9814A 24 SE 2 10 V 100 kS s 75 kS s a The DT9812 10V OEM is an uncased board level module provided for OEM customers Rather than provide screw terminals this module provides 2 20 pin connectors for connecting I O signals All modules provide the following features 32 location analog input channel gain list yo
60. ications When you are finished configuring the module click Close Repeat steps 3 to 5 for the other modules that you want to configure Close the Data Acquisition Control Panel dialog box Continue with the instructions on wiring in Chapter 3 starting on page 27 25 Chapter 2 26 Wiring Signals to the Module Treparing ip Wire DIETE Lue hae A A NE A Cede eee 29 Connecting Analog Input Signals cece esee ee eme eR Re rh eth ena 34 Connecting Analog Output mala cts pen eee pe e ETHER ER EUIS 35 Connecting Digital O SPHA eetere een eee eee tegere eoe e elegant 36 Connecting Counters Timer Signals o eaa 0 990 R K R e ore eet rhe ee E en 39 27 Chapter 3 28 Set Up and Install the Module see Chapter 2 starting on page 19 Wire Signals to the Module this chapter Verify the Operation of the Module see Chapter 4 starting on page 43 Wiring Signals to the Module Preparing to Wire Signals This section provides information about wiring signals to a DT9812 DT9813 or DT9814 Series module Wiring Recommendations Keep the following recommendations in mind when wiring signals to a DT9812 DT9813 or DT9814 Series module Follow standard ESD procedures when wiring signals to the module Use individually shielded twisted pair wire size 16 to 26 AWG in highly noisy electrical environments Separate power and signal lines by using physically different
61. ices attached to a single USB port by using expansion hubs For more information refer to page 23 You can unplug a module and then plug it in again if you wish 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 module to the host computer Connecting Directly to the USB Ports To connect a DT9812 DT9813 or DT9814 Series module directly to the USB ports of your computer do the following 1 Attach one end of the USB cable to the USB connector on the module 2 Attach the other end of the USB cable to one of the USB ports on the host computer as shown in Figure 2 The operating system automatically detects the USB module and starts the Found New Hardware wizard DT9812 DT9813 or DT9814 Series Module USB Ports Host Computer H L C USB Cable REEL Figure 2 Attaching the Module to the Host Computer 22 Setting Up and Installing the Module 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 O
62. ification e nen 112 Appendix B Screw Terminal and Connector Pin Assignments 113 Screw Terminal Assignments een 114 DT9812 2 5V DT9812 10V and DT9812A Screw Terminal Assignments 114 DT9813 10V and DT9813A Screw Terminal Assignments 000 115 DT9814 10V and DT9814A Screw Terminal Assignments 000 116 DT9812 10V OEM Connector Pin Assignments ooooooooocooorrrrr rr 117 Index iesus a ee cL LK Ss 119 About this Manual The first part of this manual describes how to install and set up your DT9812 DT9813 and DT9814 Series modules and software and verify that your modules are working properly The second part of this manual describes the features of the DT9812 DT9813 and DT9814 Series modules the capabilities of the device driver and how to program the modules using the DT Open Layers 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 If the information applies to a specific module this manual uses the specific product name such
63. ion web site at www datatranslation com for an answer to your problem 8 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 22 to isolate and solve the problem If you cannot identify the problem refer to page 90 Table 22 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 damaged Contact Data Translation for technical support refer to page 92 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 110 of this manual and the documentation provided by your
64. ith a module and device driver should they occur Chapter 8 Calibration describes how to calibrate the analog I O circuitry of the 10V modules Appendix A Specifications lists the specifications of the modules Appendix B Screw Terminal and Connector Pin Assignments shows the screw terminal assignments of the modules An index completes this manual Conventions Used in this Manual The following conventions are used in this manual Notes provide useful information or information that requires special emphasis cautions provide information to help you avoid losing data or damaging your equipment and warnings provide information to help you avoid catastrophic damage to yourself or your equipment Items that you select or type are shown in bold Related Information Refer to the following documents for more information on using the DT9812 DT9813 and DT9814 Series modules 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 Vi
65. l 81 single ended 81 channel gain list depth 81 channels analog input 59 analog output 65 counter timer 71 digital I O 70 number of 81 clock sources analog input 61 analog output 66 counter timer 71 clocks base frequency 85 external 85 internal 85 119 Index 120 maximum external clock divider 85 maximum throughput 85 minimum external clock divider 85 minimum throughput 85 simultaneous 85 specifications 109 configuring the device driver 25 connecting a module 22 using an expansion hub 23 connecting signals analog inputs 34 analog outputs 35 digital inputs and outputs 36 edge to edge measurement 41 event counting 39 frequency measurement 40 pulse output 42 connector pin assignments DT9812 10V OEM 117 continuous analog input post trigger 79 scan operations 62 continuous analog output 67 79 continuous counter timer 79 continuous digital I O 79 Control Panel applet 91 conversion modes continuous scan mode 62 digital I O 70 single value analog input 62 single value analog output 67 conversion rate 62 counter timer channels 71 81 clock sources 71 85 connecting edge to edge signals 41 connecting event counting signals 39 connecting frequency measurement signals 40 connecting pulse output signals 42 edge to edge measurement mode 86 event counting 86 gate types 72 gate falling edge type 86 gate rising edge type 87 high edge gate type 86 high level gate type 86 high to low output pulse 86 internal gate t
66. lock 66 internal retrigger clock 80 output pulse 74 frequency measurement 40 41 51 73 G gain actual available 81 analog input 60 analog output 66 number of 81 programmable 81 gate type 72 high edge 86 high level 86 internal 86 low edge 86 gate falling edge type 86 gate rising edge type 87 generating pulses 74 H hardware features 14 header USB connector 118 help online 45 high edge gate type 86 high level gate type 86 hot swapping 22 j inprocess buffers 80 input channels 59 ranges 60 sample clock sources 61 internal clock 71 85 gate type 86 interrupt driven operations 87 interrupts 79 L LabVIEW 15 layout of DT9812 10V OEM module 32 LEDs 23 24 low edge gate type 86 LV Link 15 M mating connector specifications 112 MaxDifferentialChannels 81 MaxExtClockDivider 85 MaxFrequency 85 MaxMultiScanCount 80 MaxRetriggerFreq 80 MaxSingleEndedChannels 81 Measure Foundry 15 measuring frequency 73 measuring pulses 74 MinExtClockDivider 85 MinFrequency 85 MinRetriggerFreq 80 multiple channels analog input 59 analog output 65 121 Index 122 N number of differential channels 81 gains 81 I O channels 81 resolutions 82 scans per trigger 80 single ended channels 81 voltage ranges 82 NumberOfChannels 81 NumberOfRanges 82 NumberOfResolutions 82 NumberOfSupportedGains 81 Nyquist Theorem 61 O online help 45 Open Layers Control Panel applet 91 operation modes
67. ltage 0 8 V max Low input current 0 4 mA max Outputs High output 2 8 V min Low output 0 6 V max High output current source 2 mA Low output current sink 10 mA Software I O selectable No ESD protection per spec Arc 8 kV Contact 4 kV Specifications Counter Timer Specifications Table 26 lists the counter timer specifications for the DT9812 DT9813 and DT9814 Series modules Table 26 Counter Timer Specifications Feature DT9812 Series DT9813 Series DT9814 Series Specifications Number of counter timers 1 Counter timer modes Event counting frequency measurement edge to edge measurement rate generation Resolution 32 bit Minimum pulse width 200 ns minimum amount of time it takes a C T to recognize an input pulse Logic family TTL Inputs Level sensitive Input logic load 1 TTL Load High input voltage 2 4 V min Low input voltage 0 8 V max Low input current 0 4 mA max Outputs High output 2 8 V min Low output 0 6 V max High output current source 2mA Low output current sink 12 mA ESD protection per spec Arc 8 kV Contact 4 kV Internal clock frequency 15 Hz to 12 MHz External clock divider 2 to 65536 a The resolution is 16 bits for rate generation operations 107 Appendix A External Trigger Specifications 108 Table 27 lists the external A D trigger specifications for the DT9812 DT9813 and D
68. ment 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 ooococcoocconcnoc ehh nnn 9 Intended Audience ceder pe beber ERE da ee b ese ER ee 9 How this Manual is Organized 9 Conventions Used in this Manual aea R aA a eee nett nee N A 10 Related Information 2I o dd Pen wie teas 10 Where o Get Help it o T pass 11 Chapter 1 Overview ooooooccconn Rh hh n hn 13 Key Hardware Features sc eR E aR R eei ne tp TERA n 14 Supported Software ote EA Ee PEUT ebat o e re ea be e d ete ee 15 Getting Started Procedure is rone HT RT a T TRAS enne 16 Part 1 Getting Started Llel llless sese 17 Chapter 2 Setting Up and Installing the Module o ooooooooo 19 MIP AC KAT Si sor tL SS Aes A CoL ista NM DILE MOM soU Lo ALL M tg 21 Attaching Modules to the Computer s eee 22 Connecting Directly to the USB Ports 6 6 22 Connecting to an Expansion Hub eee 23 Changing the Name of a Module Optional 0 25 Chapter 3 Wiring Signals to the Module l cee eee eee eee 27 Prepating to WireSignalS is leue E REESE E ane tg He ER a aee e tec cede ie 29 Wiring Recommendations nnn 29 Wiring Signals to a
69. n 100 ppm 100 ppm 100 ppm Differential linearity monotonic monotonic monotonic Input impedance Off channel 10 MQ 10 pf 10 MQ 10 pf 10 MQ 10 pf On channel 10 MQ 100 pf 10 MQ 100 pf 10 MQ 100 pf Input bias current 10 nA 10 nA 10 nA Maximum input voltage without damage Power on Power off 35 V 35 V 35 V 20 V 20 V 20 V Channel acquisition time 12 LSB 20 us 20 us 10 us 102 Specifications Table 23 Analog Input Specifications cont Feature DT9812 2 5V Specifications DT9812 10V DT9812 10V OEM DT9813 10V DT9814 10V Specifications DT9812A DT9813A DT9814A Specifications Sample and hold Aperture uncertainty 2 ns 2ns 2ns Aperture delay 200 ns 200 ns 200 ns Throughput 50 kHz 50 kHz 100 kHz gt ESD protection per spec Arc 8 kV 8 kV 8 kV Contact 4 kV 4kV 4kV Reference 2 44 V 2 5V 2 5V Monotonicity Yes Yes Yes Sample Clock Internal Yes Yes Yes External Yes Yes Yes Trigger Source Internal Yes Yes Yes External Yes Yes Yes A D Converter Noise 0 6 LSB rms 0 6 LSB rms 0 6 LSB rms Channel to Channel Offset 0 1 mV 0 1 mV 0 1 mV Effective Number of Bits at 50 kHz with a 1 kHz sine wave 10 5 bits 10 5 bits 10 5 bits Total Harmonic Distortion 70 dB 1 kHz 70 dB 1 kHz lt 70 dB 1 kHz Channel Crosstalk 74 dB Q 1 kHz 74 dB 1 kHz 74 dB O 1 kHz Maximum A D Pacer Clock Single Analog Input Throughput
70. nce the firmware is loaded the wizard restarts to initiate 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 to attach another 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 DT9812 DT9813 and or DT9814 Series modules that you can connect to a single USB port depends on the throughput you want to achieve To connect multiple modules to an expansion hub do the following 1 Attach one end of the USB cable to the module and the other end of the USB cable to an expansion hub Connect the power supply for the expansion hub to an external power supply Connect the expansion hub to the USB port on the host computer using another USB cable The operating system automatically detects the USB device and starts the Found New Hardware wizard 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 23 Chapter 2 24 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
71. ng operations use software to specify the counter timer mode as count the C T clock source as external and the active gate type as software or high level Make sure that the signals are wired appropriately Refer to page 39 for an example of connecting an event counting application Frequency Measurement Connect a pulse of a known duration to the Counter 0 Gate signal Specify the active gate in software high level or low level When the operation starts read the number of counts that occurred when the gate was active You can 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 Refer to page 40 for an example of connecting a frequency measurement application 73 Chapter 5 74 Edge to Edge Measurement Use edge to edge measurement mode if you want to measure the time interval between a specified start edge and a specified stop edge The start edge can occur on the rising edge or the falling edge of the Counter 0 Gate signal and the stop edge can occur on the rising edge or the falling edge of the Counter 0 Gate signal 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 When the operation is complete you can read the value
72. on when it is in progress click Stop 51 Chapter 4 52 Testing Pulse Output To verify that the module can perform a pulse output operation do the following 1 g RM Connect a scope to counter timer 0 on the DT9812 DT9813 or DT9814 Series module Refer to page 42 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 the Quick DataAcq application choose Pulse Generator from the Control menu Select the appropriate DT9812 DT9813 or DT9814 Series module from the Board list box Select Continuous to output a continuous pulse stream Select 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 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 Part 2 Using Your Module JJ Principles of Operation Aralo Input Pesrulglt on eyed es II peces Pape are be b aeos 59 Analoe Output Pasties eso ss ese perke io Aqu Rp erbPX D eee ewan cas 65 Digital L O Pean occiso 6 RR E reECDLO eH E x s E er EE ES ERR 70 Counter Timer Features isses te WU QR Ede Eng dew de 71 55 Chapter 5 Figure 17 shows a block diagram of the DT9812 2 5V DT9812 10V DT9812 10V OEM and DT9812A modules
73. one or more analog output channels Use software to configure the output channel list as described on page 65 Then allocate a buffer that contains the values to write to the analog output channels that are specified in the output channel list For example if your output channel list contains DACO and DAC1 specify your buffer as follows first value for DACO first value for DAC1 second value for DACO second value for DAC1 and so on When it receives the software trigger the module starts writing output values to the analog output channels specified in the output channel list The operation repeats continuously until no more buffers are on the subsystem queue or you stop the operation Refer to page 68 for more information about buffer modes Note Make sure that the host computer transfers data to the analog output channels fast enough so that they do not empty completely otherwise an underrun error results To select continuously paced analog output mode use software to specify the following parameters e Set the dataflow as Continuous Set WrapSingleBuffer to False to use multiple buffers a minimum of two buffers is recommended in this mode or to True to use a single buffer Set the trigger source as a software internal trigger Setthe clock frequency To stop a continuously paced analog output operation you can stop sending data to the module letting the module stop when it runs out of data or you can perfo
74. owing to calibrate the analog output circuitry 1 2 3 Select the D A Configuration tab of the DT9812 Series Calibration Utility Connect an external precision voltmeter to Analog Output 0 DAC Ch0 of the module Adjust the offset by entering values between 0 and 63 in the DAC 0 Offset edit box or by clicking the up down buttons until the voltmeter reads 0 V Connect an external precision voltmeter to Analog Output 1 DAC Ch1 of the module Adjust the offset by entering values between 0 and 63 in the DAC 1 Offset edit box or by clicking the up down buttons until the voltmeter reads 0 V 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 DT9812 Series Calibration Utility click the close box in the upper right corner of the window m Specifications Analog Input bpecification amp csse eee enm epit nie ee bok e ent ecd eate 102 Analog Output pel CONE teer CHE e DER HR IH Chee Rd dete n 104 Dial Opec ICAOn coop 2 8 de tet eH ERR Ue RR R RRR RT NTA er dd YN 106 Counters Timer Spect call ns conocio iiki aani EAE EEE EKES 107 termal Tigger a T 1 iii cete Dx ei oe poter ede Sete eee 108 External Clock aT e TT 109 Power Physical and Environmental Specifications 0 000 e eee eee 110
75. p A D Chi w DIN3 po he A D Cho lel ESD Protected to 4000 V DINO Vv DAC 1 12 Bit D A ESD Protected to 4000 V DAC 0 Converter USB 2 0 Port Input FIFO Lo Figure 18 Block Diagram of the DT9813 10V and DT9813A Modules 57 Chapter 5 Figure 19 shows a block diagram of the DT9814 10V and DT9814A modules Power 5V Supply R 2 5 V Reference C T Out 0 E From USB 32 Bit 24 Channel Multiplexer n Port Counter Timer R s gt A D Ch23 q CIT Ino tty A D Ch22 A D Clock i External Clock A D Ch21 External Trigger _ 12 Bit A D e e Converter p e gt A D Ch2 MP A D Chi I gt A D ChO ESD Protected to 4000 V DAC 1 12 Bit D A ESD Protected to 4000 V DAC 0 z Converter USB 2 0 Port Input FIFO Ld Figure 19 Block Diagram of the DT9814 10V and DT9814A Modules 58 Principles of Operation Analog Input Features This section describes the following features of analog input A D operations on the DT9812 DT9813 and DT9814 Series modules Input resolution described below Analog input channels described below Input ranges and gains described on page 60 Input sample clock sources described on page 61 Analog input conversion modes described on page 62 Input triggers described on page 63 e Dat
76. r DT9814 Series module refer to the instructions in Chapter 8 Computer does not boot The power supply of the computer is too small to handle all the system resources Check the power requirements of your system resources and if needed get a larger power supply consult the module s specifications on page 110 USB 2 0 is not recognized Your operating system does not have the appropriate Service Pack installed Standby mode is enabled on your PC Ensure that you load the appropriate Windows Service Pack version 2 for Windows XP If you are unsure of whether you are using USB 2 0 or USB 1 1 run the Open Layers Control Panel applet described in Chapter 2 For some PCs you may need to disable standby mode on your system for proper USB 2 0 operation Consult Microsoft for more information 91 Chapter 7 92 Technical Support If you have difficulty using a module Data Translation s Technical Support Department is available to provide technical assistance To request technical support go to our web site at http www datatranslation com and click on the Support link When requesting technical support be prepared to provide the following information 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 o
77. r increase the buffer size and or number of buffers 64 Principles of Operation Analog Output Features This section describes the following features of analog output operations Output resolution described below Analog output channels described below e Output ranges and gains described on page 66 Output trigger described on page 66 Output clock described on page 66 e Data format and transfer described on page 68 Error conditions described on page 69 Output Resolution The modules provide a fixed output resolution of 12 bits Note that the resolution is fixed it cannot be programmed in software Analog Output Channels DT9812 DT9813 and DT9814 Series modules provide two analog output channels DACs The modules can output data from a single analog output channel or from both analog output channels The following subsections describe how to specify the channels Specifying a Single Analog Output Channel The simplest way to output data from a single analog output channel is to use single value analog output mode specifying the analog output channel that you want to update refer to page 67 for more information about single value operations You can also specify a single analog output channel using the output channel list described in the next section Specifying Analog Output Channels You can output data continuously from one or both analog output channels using the output channel list If you want
78. rm either an orderly stop or an abrupt stop using software In an orderly stop the module finishes outputting the data in the buffer then stops all subsequent triggers are ignored In an abrupt stop the module stops outputting samples immediately all subsequent triggers are ignored 67 Chapter 5 68 Data Transfer If you are using continuous output mode you specify whether to allocate and fill a single buffer WrapSingleBuffer is True or multiple buffers WrapSingleBuffer is False If you are using multiple buffers data is written from multiple output buffers continuously when no more buffers of data are available the continuous output operation stops This mode guarantees gap free data If you use a single buffer data is output continuously from the single buffer until you stop the operation A buffer done event is generated whenever the last value in a buffer is output This allows you to fill the buffer or provide a new buffer as needed Note Anunderrun error can result if your buffer size is too small if you do not allocate enough buffers or if your clock rate is too fast Data Format The DT9812 2 5V module uses binary data encoding The DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules use twos complement encoding In software you need to supply a code that corresponds to the analog output value you want the module to output Converting a Voltage into a Binar
79. rminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Digital Output 7 16 Counter 0 Gate 36 Digital Output 6 15 Ground 35 Digital Output 5 14 DAC 1 34 Digital Output 4 13 DAC 1 Return 33 Digital Output 3 12 DAC 0 32 Digital Output 2 11 DAC 0 Return 31 Digital Output 1 10 2 5 V Reference 30 Digital Output 0 9 Analog Ground 29 Ground 8 Analog Input CH7 28 Digital Input 7 7 Analog Input CH6 27 Digital Input 6 6 Analog Input CH5 26 Digital Input 5 5 Analog Input CH4 25 Digital Input 4 4 Analog Input CH3 24 Digital Input 3 3 Analog Input CH2 23 Digital Input 2 2 Analog Input CH1 22 Digital Input 1 1 Analog Input CHO 21 Digital Input 0 a For the DT9812 2 5V module this reference is 2 44 V 114 Screw Terminal and Connector Pin Assignments DT9813 10V and DT9813A Screw Terminal Assignments Table 33 lists the screw terminals for the DT9813 10V and DT9813A modules Table 33 DT9813 10V and DT9813A Screw Terminal Assignments Screw Screw Terminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Digital Input 3 16 Counter 0 Gate 36 Digital Input 2 15 Ground 35 Digital Input 1 14 DAC 1 34 Digital Input 0 13 DAC 1 Return 33 Digital Output 3 12 DAC 0 32 Digital Output 2 11 DAC 0 Return 31
80. ropriate bits to select the type of signal to write from the digital output lines If the bit is selected a high level signal is output from the digital output line if the bit is not selected a low level signal is output from the digital output line Optionally you can enter an output value in the Hex text box Click Send The application outputs and displays the value of each digital output line of digital port B on the screen in both text and graphical form Verifying the Operation of a 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 DT9812 DT9813 or DT9814 Series module Refer to page 40 for an example of how to connect signals to a counter timer for a frequency measurement operation Note The Quick DataAcq application works only with counter timer 0 In the Quick DataAcq application choose Frequency Counter from the Acquisition menu Select the appropriate DT9812 DT9813 or DT9814 Series module from the Board list box In the Count Duration text box enter the number of seconds during which events will be counted Click Start to start the frequency measurement operation The operation automatically stops after the number of seconds you specified has elapsed and the application displays the frequency on the screen If you want to stop the frequency measurement operati
81. s DT9812 DT9813 and DT9814 Series Internal Clock Support SupportsinternalClock A D Yes D A Yes DIN DOUT C T QUAD Yes External Clock Support SupportsExternalClock Yes Yes Simultaneous Input Output on a Single Clock Signal SupportsSimultaneousClocking Yes Base Clock Frequency BaseClockFrequency 24 MHz 24 MHz 24 MHz 0 Maximum Clock Divider MaxExtClockDivider 65536 O Minimum Clock Divider MinExtClockDivider 1 1 Maximum Frequency MaxFrequency Minimum Frequency MinFrequency 50 kHz or 100 kHz 30 Hz 50 kHz or 75 kHz 30 Hz 0 0 12 MHz 0 15Hz 0 a For the DT9812 2 5V DT9812 10V DT9812 10V OEM DT9813 10V and DT9814 10V the maximum A D frequency of the internal clock is 50 KHz For the DT9812A DT9813A and DT9814A the maximum A D frequency of the internal clock is 100 KHz For the DT9812 2 5V DT9812 10V DT9812 10V OEM DT9813 10V and DT9814 10V the maximum A D frequency of the external clock is 40 KHz For the DT9812A DT9813A and DT9814A the maximum A D frequency of the external clock is 75 kHz b For the DT9812 2 5V DT9812 10V DT9812 10V OEM DT9813 10V and DT9814 10V the maximum D A frequency of the internal clock is 50 KHz For the DT9812A DT9813A and DT9814A the maximum D A frequency of the internal clock is 75 KHz 85 Chapter 6 Counter Timers 86 Table 2
82. sual Cft 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 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 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 e LV Link Online Help This help file describes how to use LV Link with the LabVIEW graphical programming language to access the capabilities of Data Translation data acquisition devices Microsoft Windows XP Windows Vista or Windows 7 documentation USB web site http www usb org Where To Get Help Should you run into problems installing or using a module the Data Translation Technical Support Department is available to provide technical assistance Refer to Chapter 7 starting on pa
83. t box select analog input channel 0 In the Range list box select the range for the channel 0 to 2 44 V for the DT9812 2 5V and 10 V for the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A Select Single Ended Click Get to acquire a single value from analog input channel 0 The application displays the value on the screen in both text and graphical form Verifying the Operation of a Module Testing Single Value Analog Output To verify that the module can output a single analog output value do the following 1 g OF NM Connect an oscilloscope or voltmeter to DACO on the module Refer to page 35 for an example of how to connect analog output signals In the Quick DataAcq application select Single Analog Output from the Control menu Select the appropriate DT9812 DT9813 or DT9814 Series module from the Board list box In the Channel list box select analog output channel 0 In the Range list box select the output range of DACO 0 to 2 44 V for the DT9812 2 5V and 10 V for the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A Enter an output value or use the slider to select a value to output from DACO Click Send to output a single value from DACO The application displays the output value on the screen in both text and graphical form 47 Chapter 4 48 Testing Continuous Analog Input To verify that the module can perform a con
84. ten to the digital lines associated with that port Single value operations stop automatically when finished you cannot stop a single value operation 70 Principles of Operation Counter Timer Features This section describes the following features of counter timer C T operations C T channels described below C T clock sources described on page 71 Gate types described on page 72 Pulse types and duty cycles described on page 72 C T operation modes described on page 73 C T Channels The modules provide one 32 bit counter timer 16 bits in rate generation mode The counter accepts a C T clock input signal pulse input signal and gate input signal and outputs a pulse signal clock output signal as shown in Figure 21 C T Clock Input Signal internal or external 39 Counter H Pulse Output Signal NENNEN Gate Input Signal software or external input Figure 21 Counter Timer Channel C T Clock Sources The following clock sources are available for the counter timers Internal clock Through software specify the clock source as internal and specify the frequency at which to pace the counter timer operation The frequency of the internal C T clock can range from 15 Hz to 12 MHz External clock An external clock is useful when you want to pace counter timer operations at rates not available with the internal clock or if you want to pace at uneven interv
85. tinuous analog input operation do the following 1 10 11 12 Connect known voltage sources such as the outputs of a function generator to analog input channels 0 and 1 on the DT9812 DT9813 or DT9814 Series module using the single ended configuration Refer to page 34 for an example of how to connect a single ended analog input In the Quick DataAcq application choose Scope from the Acquisition menu Select the appropriate DT9812 DT9813 or DT9814 Series module from the Board list box In the Sec Div list box select the number of seconds per division 1 to 00001 for the display In the 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 Click Config from the Toolbar In the Config dialog select ChannelType and then select Single Ended In the Config dialog select Range and then select Unipolar for the DT9812 2 5V or Bipolar for the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A From the Scope view double click the input range of the channel to change the input range of the module The display changes to reflect the selected range for all the analog input channels on the module In the Trigger box select Auto to acquire data continuously from the specified channels or Manual to acquire a burst of data from the specified channels Click Start from
86. u can cycle through the channel gain list using continuous scan mode 2 location output channel list you can update both DACs simultaneously at the maximum analog output update rate 12 bit resolution One 32 bit counter timer channel for performing event counting frequency measurement edge to edge measurement and rate generation continuous pulse output operations Internal and external A D clock sources Internal and external A D trigger sources No external power supply required Overview Supported Software The following software is available for use with the DT9812 DT9813 and DT9814 Series modules and is provided on the OMNI CD Device Driver The DT9812 DT9813 or DT9814 Series Device Driver allows you to use these modules with any of the supported software packages or utilities Refer to Chapter 2 for more information on configuring the device driver Quick DataAcq application The Quick DataAcq application provides a quick way to get up and running using a DT9812 DT9813 or DT9814 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 for more information on using the Quick DataAcq application 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
87. uick DataAcq Application The Quick DataAcq application is installed automatically when you install the driver software To run the Quick DataAcq application do the following 1 If you have not already done so power up your computer and any attached peripherals 2 Click Start from the Task Bar 3 Browse to Programs Data Translation Incl DT Open Layers for Win32 QuickDataAcq The main menu appears Note The Quick DataAcq application allows you to verify basic operations on the board however it may not support all of the board s features For information on each of the features provided use the online help for the Quick DataAcq application by pressing F1 from any view or selecting the Help menu If the system has trouble finding the help file navigate to C Program Files Data Translation Win32 dtdataacq hlp where C is the letter of your hard disk drive 45 Chapter 4 46 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 single ended mode on the DT9812 DT9813 or DT9814 Series module Refer to page 34 for an example of how to connect a single ended analog input In the Quick DataAcq application choose Single Analog Input from the Acquisition menu Select the appropriate DT9812 DT9813 or DT9814 Series module from the Board list box In the Channel lis
88. uple and RTD Support e rr 83 IEPE Supporto kn ta a EPOD ct Dalene et esee sepsis Be 83 Tesla ironia and siae eR rH ES e US P e s du tegat tss 84 e Lee etas S ode e Qe a n ette tates Ee is e 85 Counter Timers ati eA Vu a e eres oem e b een olea eet dope euo eaa 86 Chapter 7 Troubleshooting cles mh 89 General Checklist ui eet RR bate ELE dds Jade UR ue UR e EARN USA 90 Technical SuppOEt u uoa Dei ae ete bte ettet MeL etse 92 If Your Module Needs Factory Service 0 6 6 een eee 93 Contents Chapter 8 Calibration 000 ccc eer I hm nmn 95 Using the DT9812 Series Calibration Utility 0 cece nee 97 Calibrating the Analog Input Subsystem 0 000 00 98 Connecting a Precision Voltage Source 0 6 nee 98 Using the Auto Calibration Procedure 00000 e eee eee 98 Using the Manual Calibration Procedure 0 00 0 e eee eee eee 98 Calibrating the Analog Output Subsystem sisse 100 Appendix A Specifications sse x e e x e x e x eee nA 101 Analog Input Specifications sessa nen 102 Analog Output Specifications e 00 104 Digital I O Specifications ni TEK H aE K Haa 2 aR nn 106 Counter Timer Specifications e een 107 External Trigger Specifications e 108 External Clock Specifications 0 66 en 109 Power Physical and Environmental Specifications 110 Regulatory Specifications AR 9 2 RA TR HK eee eee 111 Mating Connector Spec
89. ur web site www datatranslation com for the name and telephone number of your nearest distributor 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 The name and telephone number of your nearest distributor are listed on our web site www datatranslation com 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 Place in a secure shipping container 3 Return the 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 93 Chapter 7 94 Calibration Using the DT9812 Series alibration UB os KRE R E ii oF Calibrating the Analog Input Subsystem Ka eR R e 0 R 0 0 et n e een 98 Calibrating the Analog Output Subsystem
90. ut the internal sample clock The sample rate which is the rate at which a single entry in the channel list is sampled is determined by the frequency of the input sample clock divided by the number of entries in the channel list To select continuous scan mode use software to specify the data flow as Continuous Figure 20 illustrates 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 on each clock pulse of the input sample clock When it reaches the end of the channel list the module wraps to the beginning of the channel list and repeats this process Data is acquired continuously ChanO Chan2 ChanO Chan 2 ChanO Chan 2 ChanO Chan 2 Chan 1 Chan 1 Chani Chani Sample PLU IL Clock Data acquired continuously Initial trigger event occurs Figure 20 Continuous Scan Mode 62 Principles of Operation 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 the buffers on the queue have been filled or when you stop the operation Note that when you stop the operation the module completes the reading of the channel list The DT9812 DT9813 and DT9814 Series modules support the following trigger sources e Software trigger A software trigger event occurs wh
91. utions SupportedResolutions 12 12 8or4P Bor4 32 a All modules support a fixed A D and D A resolution of 12 bits b The resolution of the digital input port port A is fixed at 8 bits or eight digital input lines for the DT9812 Series modules and 4 bits for the DT9813 Series modules The resolution of the digital output port port A is fixed at 8 bits or eight digital output lines for the DT9812 Series modules and 4 bits for the DT9813 Series modules Supported Device Driver Capabilities Thermocouple and RTD Support Table 17 DT9812 DT9813 and DT9814 Series Thermocouple and RTD Support Options DT9812 DT9813 and DT9814 Series A D D A DIN DOUT C T QUAD Thermocouple Support SupportsThernocouple RTD Support SupportsRTD Resistance Support ReturnsOhms Voltage Converted to Temperature in Hardware SupportsTemperatureDatalnStream Supported Thermocouple Types ThermocoupleType Supported RTD Types RTDType Supports CJC Source Internally in Hardware SupportsCjcSourcelnternal Supports CJC Channel SupportsCjcSourceChannel Available CJC Channels CjcChannel Supports Interleaved CJC Values in Data Stream SupportsInterleavedCjcTemperaturesInStream Supports Programmable Filters SupportsTemperatureFilters Programmable Filter Types TemperatureFilterType IEPE Support Table 18 DT9812 DT9813 and DT9814 Series IEPE
92. vel low level or software gate While the pulse output operation is enabled the counter outputs a high to low going pulse with a pulse width of 50 continuously As soon as the operation is disabled rate generation stops The frequency of the output is determined by the C T clock source either internal or external and the clock divider used You can generate an output signal from Counter 0 Out with a frequency of 15 Hz to 12 MHz Principles of Operation To specify rate generation mode use software to specify the counter timer mode as rate the C T clock source as either internal or external the clock divider 2 to 65536 and the active gate type high level or software gate Refer to page 72 for more information about gate types Make sure that the signals are wired appropriately Refer to page 42 for an example of connecting a rate generation application 75 Chapter 5 76 D Supported Device Driver Capabilities Data Plow and Operation DpDODE EN R coner eee E R R K edenda 79 RIO MT M MH 80 Tusppred SES DIBEHIE ooo eoo er eerte eit aee rete ene een ERE EER 80 INT soa a Mga e TEN E RE R nid qat A b seemed 81 S T X T 81 Don UTE 82 E e o eed ute fate otn ena OBI GRE UR Redes ond bn ERU roges 82 Thetmocouple and TO CUPP cis ecce Ier rRRES eR e o 83 E cri o Em 83 ji nn 84 S E 85 Counter FT rule ihiaDIekebrixeR e RF GER nit es 86 77 Chapter 6 78
93. wiring paths or conduits Toavoid 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 Wiring Signals to a DT9812 2 5V DT9812 10V DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A Module For the DT9812 2 5V DT9812 10V DT9812A DT9813 10V DT9813A DT9814 10V and DT9814A modules you wire signals to the screw terminals on the module Table 2 lists the screw terminal assignments for the DT9812 2 5V DT9812 10V and DT9812A modules Table 3 lists the screw terminals for the DT9813 10V and DT9813A modules Table 4 lists the screw terminals for the DT9814 10V and DT9814A modules Table 2 DT9812 2 5V DT9812 10V DT9812A Screw Terminal Assignments Screw Screw Terminal Signal Terminal Signal 20 USB 5 V Out 40 Ext Trigger 19 Ground 39 Ext Clock 18 Counter 0 In 38 Ground 17 Counter 0 Out 37 Digital Output 7 16 Counter 0 Gate 36 Digital Output 6 15 Ground 35 Digital Output 5 14 DAC 1 34 Digital Output 4 13 DAC 1 Return 33 Digital Output 3 12 DAC 0 32 Digital Output 2 29 Chapter 3 Table 2 DT9812 2 5V DT9812 10V DT9812A Screw Terminal Assignments cont
94. y Code To convert a voltage into a binary code on the DT9812 2 5V module use the following formula Code Voltage 2 44 4096 where e 2 44 is the full scale range of the module 0 to 2 44V e 4096 is the resolution 12 bits e Voltage is the analog output voltage e Code is the raw count used by the software to represent the voltage in binary notation For example if you want to output a voltage of 2 0 V determine the code value as follows Code 2 0 2 44 4096 3357 Principles of Operation Converting a Voltage to a Twos Complement Code To convert a voltage into a twos complement code on the DT9812 10V DT9812 10V OEM DT9812A DT9813 10V DT9813A DT9814 10V or DT9814A module use the following formula Code Voltage 20 4096 where 20 is the full scale range of the module 10V to 10V e 4096 is the resolution 12 bits e Voltage is the analog output voltage e Code is the raw count used by the software to represent the voltage in binary notation For example if you want to output a voltage of 5 V determine the code as follows Code 5 20 4096 1024 Error Conditions The modules can report an underrun error if the data for the analog output channels is not sent fast enough from the host computer It is up to the host application to handle this error either by ignoring it or by stopping the output operation To avoid this error try slowing down the clock rate increasing the output
95. ype 86 interrupt driven operations 87 low edge gate type 86 rate generation mode 86 subsystem specifications 107 counting events 73 customer service 93 D D A see analog output 104 data encoding 63 80 binary 63 68 twos complement 64 69 data flow modes continuous C T 79 continuous digital input 79 continuous post trigger 79 single value 79 data format analog input 63 analog output 68 data transfer analog input 63 analog output 68 DataAcq SDK 15 device driver 15 configuring 25 differential channels 81 digital I O lines 70 operation modes 70 resolution 70 subsystem specifications 106 wiring inputs 36 wiring outputs 36 Digital I O connector pin assignments DT9812 10V OEM 32 33 117 digital I O features testing 49 50 digital trigger 63 DT9812 10V OEM layout 32 DT Open Layers for NET Class Library 15 DTx EZ 15 duty cycle 72 E edge type gate falling 86 gate rising 87 edge to edge measurement mode 74 86 wiring 41 environmental specifications 110 Index errors analog input 64 analog output 69 event counting 73 86 wiring 39 external clock 71 85 external clock divider maximum 85 minimum 85 external digital trigger 63 negative 84 positive 84 F factory service 93 features 14 FifoSize 79 formatting data analog input 63 analog output 68 frequency base clock 85 external A D clock 61 internal A D clock 61 85 internal A D sample clock 85 internal C T clock 71 85 internal DAC c

DT9812, DT9813, and User`s Manual DT9814 Series

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