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Omega OMB-DAQBOARD-500 Computer Hardware User Manual

1. N Digital I O Line AO 1 AGND Analog Common Note 2 Al Digital I O Line A1 52 ACH1 Analog Input Channel 1 33 Digital I O Line A2 A3 Digital I O Line A3 Digital I O Line A6 Digital I O Line A7 Digital I O Line BO Digital I O Line B1 AGND Analog Common Note 2 ACH3 Analog Input Channel 3 3 ACH11 Analog Input Channel 11 AGND Analog Common Note 2 i i 11 i i 45 i i 10 i i 44 i i 43 0 3 28 1 Digital I O Line B6 ACH13 Analog Input Channel 13 26 Digital I O Line B7 AGND Analog Common Note 2 5 58 57 3 ACH6 Analog Input Channel 6 2 ACH14 Analog Input Channel 14 Digital I O Line C2 AGND Analog Common Note 2 C5 Digital I O Line C5 42 Analog Output DAC3 TTLTRG ADTRGIN External ADC Analog Output DAC2 Trigger Gate Input Digital Common NEGREF 5 VDC Negative Reference CNTO ADCLKIN ADC Clock Ea AGND Analog Common Note 2 Note 4 54 CNT1 j DACLKIN DAC Clock XDACO Analog Output DACO 22 or CNTR1 Counter 1 Note 5 1 Digital I O Line CO Digital I O Line C1 GE Boece AGND Analog Common Note 2 CNT3 DATRGIN DAC trigger gate input XDAC1 Analog Output DAC1 gt or TMRO Timer Output 0 or TMR1 Timer Output 1 DACLKIN DAC Pacer Clock PA GND Digital Common or CNTR1 Counter 1 Note 5 Digital Common Note 1 5 39 38 3 ae 1 Notes including a table for Differential Analog Input appear on the following page 2 6 Connections amp Pinouts 887293 DaqBoard 500 Series User
2. venn OMFSA C Shop online at omega com CO OMEGA omega com e mail info omega com For latest product manuals omegamanual info CERTIFIED CERTIFIED CORPORATE QUALITY CORPORATE QUALITY STAMFORD CT MANCHESTER UK OMB DAQBOARD 500 Series 16 Bit 200 KHz PCI Data Acquisition Boards OMB 1138 0901 rev 2 3 324545A 01 omega com FOEOMEGA OMEGAnet Online Service Internet e mail omega com info omega com U S A ISO 9001 Certified Canada Servicing North America One Omega Drive P O Box 4047 Stamford CT 06907 0047 TEL 203 359 1660 FAX 203 359 7700 e mail info omega com 976 Bergar Laval Quebec H7L 5A1 Canada TEL 514 856 6928 FAX 514 856 6886 e mail info omega ca For immediate technical or application assistance U S A and Canada Mexico Benelux Czech Republic France Germany Austria United Kingdom ISO 9002 Certified Sales Service 1 800 826 6342 1 800 TC OMEGA Customer Service 1 800 622 2378 1 800 622 BEST Engineering Service 1 800 872 9436 1 800 USA WHEN En Espanol 001 203 359 7803 e mail espanol omega com FAX 001 203 359 7807 info omega com mx Servicing Europe Postbus 8034 1180 LA Amstelveen The Netherlands TEL 31 0 20 3472121 FAX 31 0 20 6434643 Toll Free in Benelux 0800 0993344 e mail sales omegaeng nl Frystatska 184 733 01 Karvina Czech Republic TEL 420 0 59 6311899 FAX
3. 38 DATGRIN is the External DACO Trigger Gate Input This input recognizes TTL level signals and is used to start or stop the DAC acquisition process The input is selectable as either rising falling active edge or active high low level sensitivity This signal is the reference ground used for A D conversions If you are measuring from a fully floating source in differential mode it would be beneficial to tie one of the channel inputs to this point This signal should not be used for sinking large amounts of current This signal also acts as the common reference line when the board is configured for single ended inputs This signal can be used just like SGND In some environments AGND can also be used for tying cable shields to reduce analog noise DGND This signal is the 5 V power return line It is generally noisier than AGND and is a good logic low reference point Power Line This signal is sourced directly from the PCI Bus These lines are fused 1 Amp DaqBoard 500 Series User s Manual 887293 Connections amp Pinouts 2 5 TB 100 Terminal Connector Option The TB 100 Terminal Connector option can be used to connect all signal I O lines that are associated with a DaqBoard 500 or 505 TB 100 can connect to either board s 68 pin SCSI III connector via a 3 ft 68 conductor cable CA 55 or the shielded CA 56 or via a 6 ft shield cable CA 56 6 Screw Terminals for TB2 Side Pin va VOC Digital Common AO 8
4. Edge Sensitive ADTRGIN ADC Trigger DGND Digital Ground TTL Level Digital I O Ch C6 TTL Level Digital I O Ch C7 5 CO G TTL Level Digital VO Ch CO B6 I TTL Level Digital 1 0 Ch B6 12 TTL Level Digital I O Ch B4 A TTL Level Digital I O Ch B2 47 B3 TTL Level Digital I O Ch B3 A L TTL Level Digital VO Ch BO TTL Level Digital VO Ch A6 1 TTL Level Digital VOCh A4 J 50 As TTL Level Digital VOCh AS I fe A5 igi I O TTL Level Digital I O Ch A2 A3 TTL Level Digital I O Ch A3 O TTL Level Digital I O Ch AO 52 TTL Level Digital I O Ch Al 53 DGND Digital Ground ARET 1 _ Note 2 Analog Return 1 54 ARET 0 _ Note 2 Analog Return 0 AOUT 1 Note2 DACI Analog Out 1 AGND Analog Ground AOUT 0 Note 2 DACO Analog Out 0 56 AGND Analog Ground For Single Ended For Differential o ve NO na gt Ww ae Co I gt N gt TN 20 21 22 ANALOG INPUTS 23 57 24 AGND Analog Ground Analog Ground 58 AIN 14 Ch 14 Ch 7 Hi 25 59 AGND Analog Ground Analog Ground 26 27 61 28 AIN 4 Ch 4 Ch 2Hi 4 62 i 29 AGND Analog Ground Analog Ground 30 l AIN 3 Ch 1 Lo AIN 10 Ch 10 Ch 5 Hi 32 AGND Analog Ground Analog Ground 33 AIN I Ch 1 Ch 0 Lo 6 34 AIN 8 Ch 8 i Ch 4 Hi Notes to this table appear on the following page 63 64 AGND Analog Ground i Analog Ground 65 AN 2 Ch 2 Ch I Hi
5. These packages configure and collect or output acquisition data in a GUI based interface Analog Input Configuration The analog inputs are impedance buffered and drive a differential gain amplifier that can be referenced in a number of ways allowing for Single Ended or Differential programmable input configurations A I to 176 element channel configuration RAM is provided to allow each ADC channel to be set with a different Gain Range Thermocouple Type and Input Configuration selection combination ADC Ranges The analog inputs may be configured for either 10 V bipolar or 0 to10 V unipolar operation The input range is programmable on a channel by channel basis in a 176 element channel configuration RAM Note that the range selection also applies to expansion channels The programmable gain circuitry must also be taken into account in defining the usable error free input range The boards provide a wide range of programmable ranges and resolutions The following tables indicate the maximum resolution under different conditions Note that resolution is not accuracy Resolution defines the minimum definable voltage increment Absolute DC accuracy and relative accuracy defines exactly how close the reading will be to the actual voltage input ADC INPUT DaqBoard 500 Series Range Resolution Bipolar Programmable Full Scale Microvolt Gain Range Resolution 10 00 V 310 140 uV bit le 5 00 V 155 070 uV bit 2 50 V 77 535 uV
6. 420 0 59 6311114 Toll Free 0800 1 66342 e mail info omegashop cz 11 rue Jacques Cartier 78280 Guyancourt France TEL 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr Daimlerstrasse 26 D 75392 Deckenpfronn Germany TEL 49 0 7056 9398 0 FAX 49 0 7056 9398 29 Toll Free in Germany 0800 639 7678 e mail info omega de One Omega Drive River Bend Technology Centre Northbank Irlam Manchester M44 5BD United Kingdom TEL 44 0 161 777 6611 FAX 44 0 161 777 6622 Toll Free in United Kingdom 0800 488 488 e mail sales omega co uk It is the policy of OMEGA Engineering Inc to comply with all worldwide safety and EMC EMI regulations that apply OMEGA is constantly pursuing certification of its products to the European New Approach Directives OMEGA will add the CE mark to every appropriate device upon certification The information contained in this document is believed to be correct but OMEGA accepts no liability for any errors it contains and reserves the right to alter specifications without notice WARNING These products are not designed for use in and should not be used for human applications Warnings Cautions Notes and Tips Refer all service to qualified personnel This symbol warns of possible personal injury or equipment damage under noted conditions Follow all safety standards of professional practice and the recommendations in this manual Using this
7. are automatically disabled If the timer is loaded with a value of 1 the ADC will be stopped after one valid clock If this register is loaded with the value 0 the full count 65 536 conversions will occur Note that the Software and External Gate modes described in the section entitled Starting Triggering an ADC Acquisition page 4 5 are ignored 1 e the trigger source is always external when in the ABOUT Trigger Mode If the External Trigger input is disabled conversions are enabled as soon as the ADC is enabled and the next valid trigger will enable the internal counter to count conversions If the External Trigger input is enabled the first external trigger will start the conversions and the next valid trigger will enable the internal counter to count conversions ADC Clock and FIFO Errors If the ADC is running in DMA operating modes the board will automatically interrupt if clock errors or FIFO overflows become active 4 6 Software and Board Operation 988994 DaqBoard 500 Series Clocking the DAC The DaqBoard 500 includes two DAC channels The clock source of the primary DACO channel may be any of the following o DACO Pacer Clock o External Event DACLKIN The clock source for the secondary DAC1 channel is limited to the following sources o DACI Pacer Clock o Channel 0 Clock Source DAC Software Update A single D A conversion may be initiated by an asynchronous software update The DAC will output the data sample
8. bit Programmable Full Scale Microvolt Gain Range Resolution 0 to 10 00 V 155 070 uV bit 0 to 5 00 V 77 535 uV bit 0 to 2 50 V 38 768 uV bit DaqBoard 500 Series 879095 Configuration 3 1 DAC Ranges The output range of the DaqBoard 500 DACs DACO and DAC1 can be independently set to either 10 V or 0 to 10 V The following table indicates the maximum resolution for each range Note that resolution is not accuracy Resolution defines the minimum definable voltage increment Absolute DC accuracy and relative accuracy define exactly how close the actual voltage output will be to the expected output DAC OUTPUT DaqBoard 500 DAC Range Resolution Range Full Scale Microvolt Configuration Range Resolution BIPOLAR 10 00 V 305 600 u V bit UNIPOLAR 0 to 10 00 V 152 800 uV bit 3 2 Configuration 879095 DaqBoard 500 Series Software and Board Operation Overview 4 1 Out of the Box Software 4 1 Drivers for Third party Icon driven Software 4 2 DaqCOM Driver 4 2 Theory of Operation 4 3 Overview DaqBoard 500 Series boards have several software options Three types of software are available OQut of the box graphical programs e g DaqView ViewXL and post acquisition data analysis programs such as eZ PostView eZ Time View and eZ Frequency View drivers for third party icon driven software such as LabVIEW various language drivers to aid custom programming using API i
9. equipment in ways other than described in this manual can present serious safety hazards or cause equipment damage This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical shock under noted conditions This ESD caution symbol urges proper handling of equipment or components sensitive to damage from electrostatic discharge Proper handling guidelines include the use of grounded anti static mats and wrist straps ESD protective bags and cartons and related procedures This symbol indicates the message is important but is not of a Warning or Caution category These notes can be of great benefit to the user and should be read In this manual the book symbol always precedes the words Reference Note This type of note identifies the location of additional information that may prove helpful References may be made to other chapters or other documentation Tips provide advice that may save time during a procedure or help to clarify an issue Tips may include additional reference Specifications and Calibration Specifications are subject to change without notice Significant changes will be addressed in an addendum or revision to the manual As applicable we calibrate our hardware to published specifications Periodic hardware calibration is not covered under the warranty and must be performed by qualified personnel as specified in this manual Improper calibration procedure
10. etc Use care to avoid touching board surfaces and onboard components Only handle boards by their edges or ORBs if applicable Ensure boards do not come into contact with foreign elements such as oils water and industrial particulate Daq products contain no user serviceable parts refer all service to qualified personnel The specific safety conditions for CE compliance vary by product but general safety conditions include e The operator must observe all safety cautions and operating conditions specified in the documentation for all hardware used e The host computer and all connected equipment must be CE compliant e All power must be off to the device and externally connected equipment before internal access to the device is permitted e Isolation voltage ratings do not exceed documented voltage limits for power and signal inputs All wire insulation and terminal blocks in the system must be rated for the isolation voltage in use Voltages above 30 Vrms or 60 VDC must not be applied if any condensation has formed on the device e Current and power use must not exceed specifications Do not defeat fuses or other over current protection Emissions Immunity Conditions The specific immunity conditions for CE compliance vary by product but general immunity conditions include e Cables must be shielded braid type with metal shelled connectors Input terminal connections are to be made with shielded wire The shield should be
11. for the selected DAC channel DAC Pacer Clocking A series of DAC conversions may be controlled by the on board pacer clock This timer may be programmed to generate a periodic clock rate as high as 100 kHz or as slow as 4 samples per hour DAC External Event Clocking Conversions may also be caused by an external event DACLKIN is an edge sensitive input that can be programmed to cause conversions The DACLKIN is selectable as either rising or falling edge sensitive DAC Maximum Clock Rate The maximum rate which the DAC should be clocked and retain optimal accuracy is limited by the DAC chip itself These limits may not be exceeded If the pacer clock is run faster some of the clock pulses will be ignored by the circuitry and the clock error flag will set Digital Acquisition The boards support 24 bits of LSTTL compatible digital I O All ports are terminated to 5 V with 4 7 KQ pull up resistors The digital I O ports operate with positive logic in other words 0 represents TTL Low and 1 represents TTL High Digital Input Output Ports A B and C The 24 digital I O signals from three 8 bit ports A B and C are available at the main 68 pin I O connector The port channel groupings are o AQ through A7 o BO through B7 CO through C7 For pin identities refer to the pinout in chapter 2 Each of the three ports can be individually programmed as either an input or output DaqBoard 500 Series 988994 Software and Boar
12. gate input is in the active state ADC External Trigger The external gate trig input ADTRGIN may also be configured as a rising or falling edge sensitive input to trigger the start of the ADC clock External triggers are ignored until the ADC is enabled Once the ADC is enabled the next active edge signal on ADTRGIN will enable the ADC Clock source To disable the clock refer to the following section Stopping an ADC Acquisition CLOCK DaqBoard 500 Series 988994 Software and Board Operation 4 5 Stopping an ADC Acquisition CLOCK Typical ways of halting an acquisition involve use of one of the following o Software o External Gate ADTRGIN o External Trigger ADTRGIN ADC Software The acquisition can be stopped by software control ADC External Gate An ADC clock may also be switched off with the external trig gate input ADTRGIN Refer to the section entitled ADC External Gate on page 4 5 for additional information about this mode ADC External Trigger The external gate trig input ADTRGIN may also be used to stop an acquisition In this mode referred to as ABOUT Trigger Mode the ADC is disabled after a certain number of conversions are performed following a trigger The number of conversions may be anywhere from to 65 536 which represents the number of post trigger conversions Once triggered the ADC Conversion Counter immediately increments after each conversion until it reaches 0 whereupon ADC conversions
13. performance of the two configurations in an electrically noisy environment The Differential configuration should be used when any of the following exist Each source has a local ground Signal sources are remote from one another Common Mode Voltage exists Common Mode Noise exists Signal sources are low level less than 1 V Signal source leads are longer that 12 feet poo Oo pp Differential for Grounded Signal Sources The following figure is an example of a Differential Configuration for grounded signal sources To AD Input Amplifer Common Mode Voltage Vcm Yai Uez Signal Source Computer Ground Vs Ground Ver Differential Configuration for Grounded Sources DaqBoard 500 Series User s Manual 887293 Connections amp Pinouts 2 9 Differential for Floating Signal Sources Floating Signal Sources are typically wired to a data acquisition board in Single Ended configuration However when the Floating Source signal leads pass through an electrically noisy environment Differential configuration will give the best performance When wiring Floating Signal sources in Differential configuration a resistor can be connected from the low side of the sources to analog ground AGND These resistors create a return path to AGND for the bias currents of the instrumentation amplifier and can reduce the common mode noise All DaqBoard 500 Series boards provide 10 MQ of resistance between each analog input and ground I
14. to Dag devices isolation usually refers to a separation of the direct link between the signal source and the analog to digital converter ADC Isolation is necessary when measuring high common mode voltage Some transducers produce a voltage in linear proportion to the condition measured Other transducers e g thermocouples have a nonlinear response To convert nonlinear signals into accurate readings requires software to calibrate several points in the range used and then interpolate values between these points A device that collects signals from several inputs and outputs them on a single channel The value of a signal on a channel at an instant in time When triggered the ADC reads the channel and converts the sampled value into a 12 or 16 bit value A series of measurements across a pre selected sequence of channels A programmable device that manages channels and channel specific settings An operation that gathers samples from multiple channels at the same instant and holds these values until all are sequentially converted to digital values The single ended mode measures a voltage between a signal line and a common reference that may be shared with other channels Also see differential mode An event to start a scan or mark an instant during an acquisition The event can be defined in various ways e g a TTL Signal a specified voltage level in a monitored channel a button manually or mechanically engaged a software comma
15. 7 6295 Hz N fe The ADTRGOUT signal line is shared with the on board TIMER 0 Clock Output signal Ney TMRO pin 3 on the 68 pin SCSI HI connector Therefore only one output signal may be p ae generated to the ADTRGOUT TMRO terminal at any given time The TIMER 0 is automatically disabled in hardware when the ADTRGOUT is enabled 2 4 Connections amp Pinouts 887293 DaqBoard 500 Series User s Manual IDACLKIN CNTR Uses pin 1 or pin 39 for one of the following two functions DACLKIN is the External DAC Pacer clock input This input recognizes TTL level signals and is edge sensitive The active edge is selectable as either rising or falling CNTRI is the general purpose Counter 1 clock input This input recognizes TTL level signals and is rising edge sensitive The input clock rate cannot exceed 500 kHz The clock source must provide a minimum pulse width of 100 ns The DACLKIN signal line is shared with the on board COUNTER 1 Clock Input signal CNTR1 This is true for both pin 1 and pin 39 on the 68 pin SCSCI III connector Only one input signal may be connected to the DACLKIN CNTRI pin or associated terminal at any given time and the signal can only be connected to pin 1 or pin 39 NOT both Attempting to use COUNTER I when the DAC Pacer Clock Source is set for an External Clock Input would not be possible unless COUNTER 1 was being used to count the DAC s External Clock Input signal DATRGIN Uses pin
16. EGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA is not intended to be used nor shall it be used 1 as a Basic Component under 10 CFR 21 NRC used in or with any nuclear installation or activity or 2 in medical applications or used on humans Should any Product s be used in or with any nuclear installation or activity medical application used on humans or misused in any way OMEGA assumes no responsibility as set forth in our basic WARRANTY DISCLAIMER language and additionally purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever arising out of the use of the Product s in such a manner RETURN REQUESTS INQUIRIES Direct all warranty and repair requests inquiries to the OMEGA Customer Service Department BEFORE RETURNING ANY PRODUCT S TO OMEGA PURCHASER MUST OBTAIN AN AUTHORIZED RETURN AR NUMBER FROM OMEGA S CUSTOMER SERVICE DEPARTMENT IN ORDER TO AVOID PROCESSING DELAYS The assigned AR number should then be marked on the outside of the return package and on any correspondence The purchaser is responsible for shipping charges freight insurance and proper packaging to prevent breakage in transit FOR WARRANTY RETURNS please have the FOR NON WARRANTY REPAIRS consult OMEGA following information available BEFORE for current repair charges Have the following contacting OMEGA information available BEFORE contacting OMEGA 1 Pur
17. G 1 Differential mode voltage ESD Excitation Gain I solation Linearization Multiplexer MUX Sample reading Scan Sequencer Simultaneous Sample and Hold Single ended mode Trigger TTL Unipolar Differential mode voltage refers to a voltage difference between two signals that are referenced to a common point Example Signal 1 is 5 VDC referenced to common Signal 2 is 6 VDC referenced to common If the 5 VDC signal is used as the reference the differential mode voltage is 1 VDC 6 VDC 5 VDC 1 VDC If the 6 VDC signal is used as the reference the differential mode voltage is 1 VDC 5 VDC 6 VDC 1 VDC Electrostatic discharge ESD is the transfer of an electrostatic charge between bodies having different electrostatic potentials This transfer occurs during direct contact of the bodies or when induced by an electrostatic field ESD energy can damage an integrated circuit IC Some transducers e g strain gages thermistors and resistance temperature detectors RTDs require a known voltage or current Typically the variation of this signal through the transducer corresponds to the condition measured The degree to which an input signal is amplified or attenuated to allow greater accuracy and resolution can be expressed as Xn or dB The arrangement or operation of a circuit so that signals from another circuit or device do not affect the isolated circuit In reference
18. Go Q z FI Analog Ground 2 ooa 25 26 EN 28 TE 30 EN EE MEN 34 2 2 Connections amp Pinouts 887293 DaqBoard 500 Series User s Manual SCSI III Pinout Notes Apply to the preceding table Note 1 AOUT 1 DAC1 applies to DaqBoard 500 only The clock source of the secondary DAC1 channel may be software command DAC1 Pacer clock or Channel 0 clock source Likewise the return line ARET 1 only applies to the DaqBoard 500 Note 2 AOUT 0 DACO applies to DaqBoard 500 only The clock source of the primary DACO channel may be software command DACO Pacer clock or an external event DACLKIN Likewise the return line ARET 0 only applies to the DaqBoard 500 Note 3 Pins 2 and 5 ADCLKIN are redundant signal connections Only one of these pins is to be used at time Note 4 Pins 1 and 39 DACLKIN CNTR1 are redundant signal connections Only one of these pins is to be used at time Use must be for either External DAC Clock In or Counter 1 Signal Definitions The following is a description of each of the signals available at the 68 pin SCSCI Type III connector as indicated in the preceding pinout Analog Input Channels These channel signals are over voltage protected to 20 V above or below the 15 V power supply The channel inputs can withstand input voltages of up to 20 volts when the power to the system is off Differential Channels Pin Reference HI Pin LO Pin cho 68 33 em 6 30
19. V 0 to 10 V Oto 5V 0 to 2 5 V 0 to 1 25 V Accuracy year 18 to 28 C excluding noise 7 ppm C 2 ppm C Note Specifications subject to change without notice DaqBoard 500 Series User s Manual 947294 Specifications 6 1 Note Specifications subject to change without notice Signal to Noise and Distortion S N D 73 dB min gain I Total Harmonic Distortion 80 dB typical amp gain 1 measured to 5th harmonic Full Power Bandwidth I MHz Input Impedance Shunt Res to Ground 10 M ohm Shunt Capacitance 28 pf Overvoltage Protection 25 V Acceptable Operating Limit Signal Plus Common Mode 12 V Gain Channel Selection 176 element Analog Input Triggering Clocking Clock Sources o on board programmable pacer o user defined external TTL External Clock Input Latency o Sus max Trigger Sources Stop Sources o software command o software command o External TTL o software Analog as follows o software Analog as follows e above level e above level e below level e below level e rising above level e rising above level e falling below level e falling below level e inside window e inside window e outside window e outside window e scan count External TTL Trigger Latency Sus max Software Analog Trigger Latency One scan period max 6 2 Specifications 947294 DaqBoard 500 Series Channels Resolution Output Voltage Ranges Settling time to 0 006 of FSR Differential Li
20. ale factor of 0 000152800V bit A DAC DATA value of 32723 when multiplied by 0 00015280 results in 5 000044 V at the DAC output line ADC Conversion This is the process of sampling a single input or transducer s voltage and generating a representative data value DAC Conversion This is the process of outputting a single voltage generated from representative data value ADC Acquisition This term refers to a series of A D conversions This series may consist of sampling a single channel several times or sampling several channels sequentially one or more times An acquisition has a clearly defined Starting point and Ending point Thus an acquisition may be STARTED and STOPPED DAC Acquisition This term is used to refer to a series of D A conversions This series may consist of outputting a single DAC channel several times or outputting both channels simultaneously one or more times An acquisition has a clearly defined Starting point and Ending point Thus an acquisition may be STARTED and STOPPED ADC and DAC Clock This is the signal or impetus that initiates an A D or D A conversion To CLOCK the ADC or DAC is to start an A D conversion The term clock is used for this process because typically a clock signal consists of a series of pulses that are periodic or evenly timed If the conversions are evenly spaced it is then possible to digitally reconstruct the input waveform without distorting its component frequencies ADC and DAC PACER Clock Thi
21. ally refers to the PCI slot 7 Verify that the Device Type shows the correct board 1 e DaqBoard 500 or DaqBoard 505 Other devices if available can be viewed via the pull down list 8 Confirm that the DaqBoard s text box shows a Bus Slot and Serial Number If this text box is empty use its pull down list and select the serial number that matches the one for your board 1138 0940 rev 1 1 947994 DaqBoard 500 Series Installation Guide IG 5 Using Add Device 4 Dag Configuration This method is for users who have accessed the Daq Device Inventory Configuration control panel applet but have no DaqBoard 500 Series device icon 1 After accessing the Daq Configuration control panel applet click on the lt Add Device gt button see figure right The Device Type 7 Select Device Type window will appear DaqBoard 1004 Dag oard 100A 2 Using the Device Type s pull down list select the DagBoard 1124 applicable board In the example at the right DaqBoard 2004 DaqBoard 500 is selected DagBoard 1O00 3 Click the lt OK gt button The board s Properties tab will DagBoard 1005 appear The tab applies to all boards in the series At this point complete steps 6 through 8 on page IG 5 Add Device wy Using Add Device Step 4 Test Hardware Use the following steps to test the DaqBoard Note that these steps are continued from those listed under the previous section Conf
22. aseous ionized gases that may produce a reduction of dielectric strength or surface resistivity Pollution Degree I has no influence on safety and implies the equipment is at operating temperature with non condensing humidity conditions no conductive particles are permitted in the atmosphere warm up time is sufficient to avert any condensation or frost no hazardous voltages are applied until completion of the warm up period Pollution Degree II implies the expectation of occasional condensation e overvoltage installation category classification with limits for transient overvoltage dependent on the nominal line voltage to earth Category I implies signals without high transient values Category II applies to typical mains power lines with some transients Safety Conditions Users must comply with all relevant safety conditions in the user s manual and the Declarations of Conformity This manual and Daq hardware make use of the following Warning and Caution symbols If you see either of these symbols on a product carefully read the related information and be alert to the possibility of personal injury This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical shock under noted conditions This warning caution symbol is used to warn of possible personal injury or equipment damage under noted conditions Take ESD precautions packaging proper handling grounded wrist strap
23. ay be set to the DACO clocking source to allow simultaneous DAC transfers All PCI bus transfers are 32 bit operations Analog input and analog output transfers are each independently software selectable to allow either 16 bit or 32 bit data transfers An immediate improvement of twice the memory bandwidth can be achieved by transferring two analog input data points or two analog output data points into memory as a single 32 bit PCI transfer The DAC analog output channels apply to DaqBoard 500 only DaqBoard 500 Series User s Manual 947294 Daq Systems and Device Overviews 1 3 Note 1 4 Introduction 947294 DaqBoard 500 Series User s Manual Connections and Pinouts 2 Overview 2 1 68 Pin SCSI Type Ill Connector 2 2 Signal Definitions 2 3 TB 100 Terminal Connector Option 2 6 External Connections 2 7 WARNING Always turn the computer power OFF and unplug it before connecting or discon necting a screw terminal panel or a cable to the PCI card Failure to do so could result in electric shock or equipment damage The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and
24. card TMRI is an LSTTL output signal that provides a second clock source with characteristics identical to TIMERO The connection makes use of a separate and independent TMR1 internal software pacer clock The ADCLKOUT signal line is shared with the on board TMR1 Clock Output signal pin 37 on the 68 pin SCSCI III connector Only one output signal may be generated to the ADCLKOUT TMR1 pin or associated terminal at any given time TIMER 1 is automatically disabled in hardware when the ADCLKOUT is enabled ADTRGIN Uses pin 6 ADTRGIN is the External ADC Trigger Gate Input This input recognizes TTL level signals and is used to start or stop the ADC acquisition process The input is selectable as either rising falling edge or active high low level sensitivity ADTRGOUT TMR0O Uses pin 3 for one of the following two functions ADTRGOUT is the internal ADC s Trigger Output Each time the ADC is triggered from any of the available triggering sources the ADTRGOUT signal pulses high for a period of 1 us This output can be used to synchronize multiple A D converters on different cards allowing simultaneous A D triggering by connecting the ADTRGOUT to the ADTRGIN input of each PCI card The TMRO LSTTL output signal provides a 50 duty cycle square wave derived from an independent TMRO internal software pacer clock The pacer clock period can be set from 1 us to 65535 us producing an output clock rate from 500 KHz down to approximately
25. chase Order number under which the product 1 Purchase Order number to cover the COST was PURCHASED of the repair 2 Model and serial number of the product under 2 Model and serial number of the product and warranty and 3 Repair instructions and or specific problems 3 Repair instructions and or specific problems relative to the product relative to the product OMEGA s policy is to make running changes not model changes whenever an improvement is possible This affords our customers the latest in technology and engineering OMEGA is a registered trademark of OMEGA ENGINEERING INC Copyright 2005 OMEGA ENGINEERING INC All rights reserved This document may not be copied photocopied reproduced translated or reduced to any electronic medium or machine readable form in whole or in part without the prior written consent of OMEGA ENGINEERING INC Where Do I Find Everything I Need for Process Measurement and Control OMEGA Of Course Shop online at omega com TEMPERATURE r Thermocouple RTD amp Thermistor Probes Connectors Panels amp Assemblies WA Wire Thermocouple RTD amp Thermistor lA Calibrators amp Ice Point References l Recorders Controllers amp Process Monitors WA Infrared Pyrometers PRESSURE STRAIN AND FORCE WA Transducers amp Strain Gages WA Load Cells amp Pressure Gages lA Displacement Transducers WA Instrumentation amp Accessories FLOW LEVEL lA Rotameters Gas Mass Flow
26. connected to the chassis ground with the hardware provided e The host computer must be properly grounded e In low level analog applications some inaccuracy is to be expected when I O leads are exposed to RF fields or transients over 3 or 10 V m as noted on the Declaration of Conformity 5 2 CE Compliance 888195 DaqBoard 500 Series User s Manual Specifications Function Board Configuration Analog Inputs Number of Inputs Resolution Acquisition Rate A D Full Scale Ranges Programmable Gain ADC Nonlinearity Integral ADC Nonlinearity Differential Input Ranges Gain Drift Zero Drift A digital calibration method is used for both analog to digital and digital to analog conversions Please contact the factory should you believe your board to be in need of calibration High speed 16 channel multiplexed 16 Bit Analog to Digital converter ADC with programmable gain and 24 digital I O lines for PC compatibles DaqBoard 500 includes two Digital to Analog Converters DACO and DAC1 Completely software configurable Host PC sets all Bus related selections All data acquisition related configuration is done by the user via software 16 Single ended or 8 Differential programmable on per channel basis 155 070 u V bit on 0 to 10 V range 200 kHz max 10 V Oto 10 V x1 x2 x4 x8 1 LSB 3 LSB no missing codes Settling Time 10V Bipolar 5V 20us Accuracy 1 25
27. d Operation 4 7 Notes 4 8 Software and Board Operation 988994 DaqBoard 500 Series CE Compliance 5 Overview 5 1 CE Standards and Directives 5 1 Safety Conditions 5 2 Emissions Immunity Conditions 5 2 Overview CE standards were developed by the European Union EU dating from 1985 and include specifications both for safety and for EMI emissions and immunity Now all affected products sold in EU countries must meet such standards Although not required in the USA these standards are considered good engineering practice since they enhance safety while reducing noise and ESD problems In contracted and in house testing most Daq products met the required specifications Those products not originally in compliance were redesigned accordingly In some cases alternate product versions shield plates edge guards special connectors or add on kits are required to meet CE compliance stating the particular specifications and conditions that apply The test records and supporting documentation that validate the compliance are kept on file at the factory C CE compliant products bear the CE mark and include a Declaration of Conformity CE Standards and Directives The electromagnetic compatibility EMC directives specify two basic requirements 1 The device must not interfere with radio or telecommunications 2 The device must be immune from electromagnetic interference from RF transmitters
28. eee s GM end 2 57 Cng 4 6 Analog Outputs applicable to DaqBoard 500 only AOUT 0 AOUT 1 These signals are the voltage output signals from DACO and DAC1 respectively ARET 0 ARET 1 These signals are the return lines for the voltage outputs These inputs are essentially tied to AGND Analog Ground on the board Digital I O Lines 24 total A total of 24 digital I O lines exist in three groups of eight The groups are o AQ through A7 o BO through B7 o CO through C7 Each group of eight TTL level digital control lines A B and C is configurable as 8 bit input or output DaqBoard 500 Series User s Manual 887293 Connections amp Pinouts 2 3 Clocks Triggers Counters and Timers ADCLKIN Uses pin 2 or pin 45 ADCLKIN is the ADC External Pacer Clock Input This input recognizes TTL level signals and is edge sensitive The active edge is selectable as either rising or falling The ADCLKIN signal connection can be made at either pin 2 or pin 5 but NOT both at the same time ADCLKOUT TMRI Uses pin 37 for one of the following two functions ADCLKOUT is the ADC s External Clock Output Each time the ADC is clocked from any of the available clocking sources the ADCLKOUT signal pulses high for a period of Imicro second This output can be used to synchronize multiple A D converters on different PCI cards allowing simultaneous A D conversions by connecting the ADCLKOUT to the ADCLKIN input of each PCI
29. etc The standards are published in the Official Journal of European Union under direction of CENELEC European Committee for Electrotechnical Standardization The specific standards relevant to Daq equipment are listed on the product s Declaration of Conformity and include CISPR22 1985 EN55022 1988 Information Technology Equipment Class A for commercial industrial use and EN50082 1 1992 for various categories of EMI immunity The safety standard that applies to Daq products is EN 61010 1 1993 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements Environmental conditions include the following e indoor use e altitude up to 2000 m e temperature 5 C to 40 C 41 F to 104 F e maximum relative humidity 80 for temperatures up to 31 C 87 8 F decreasing linearly to 50 relative humidity at 40 C 104 F e mains supply voltage fluctuations not to exceed 10 of the nominal voltage e other supply voltage fluctuations as stated by the manufacturer e transient overvoltage according to installation categories overvoltage categories I II and III For mains supply the minimum and normal category is II e pollution degree I or II in accordance with IEC 664 DaqBoard 500 Series User s Manual 888195 CE Compliance 5 1 For clarification terms used in some Declarations of Conformity include e pollution degree any addition of foreign matter solid liquid or g
30. igure Board 1 Select the Test Hardware tab 5 Daq Configuratior il 2 Click the lt Resource Test gt button DaqBoard 500 Test Hardware Driver Versions 3 After the test is complete click lt OK gt Prior to testing please make sure your device is connected to the PC System capability is now tested for the DaqBoard and a list NE reboot and change the settings In the configuration utility of test results will appear Test Results pe No tests have been run Note If you experience difficulties please consult your user Te FIFI Te documentation included on your CD before calling for technical support Test Hardware Tab Condensed Screen Image At this point we are ready to connect signals For DaqBoard 500 Series boards connection is typically made via a terminal board such as the optional TB 100 Reference Notes During software installation Adobe PDF versions of user manuals are automatically installed onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop A copy of the Adobe Acrobat Reader is included on your CD The Reader provides a means of reading and printing the PDF documents Note that hardcopy versions of manuals can be ordered from the factory IG 6 DaqBoard 500 Series Installation Guide 947994 1138 0940 rev 1 1 Introduction 1 The DaqBoard 500 and DaqBoard 505 have 16 single e
31. ing Sources to a data acquisition board the ground reference of the signal must be tied to the analog ground AGND in order to establish a common reference point Ground Referenced Sources A Ground Referenced Source is one that is connected to the same common ground as the host PC and therefore has the same ground as the data acquisition boards An example is equipment that plugs into the same building power source as the host PC Due to differences in a building s power system the Ground Referenced Source and the data acquisition board s ground may be at different voltage levels This difference is referred to as a Common Mode Voltage Common Mode Voltage can be eliminated by using Differential DI input configurations on the data acquisition board Choosing A D Input Configuration Once you have determined what type of input signal source you have and the voltage level you then need to select the proper input configuration on your data acquisition board Single Ended Applications with a Floating Source are typically wired to a data acquisition board configured for Single Ended SE configuration Since only one wire from each input signal is connected to a multiplexed input of the A D the Single Ended configuration provides a larger number of inputs per board than Differential see below configuration Grounded Signal Sources can be wired in Single Ended configuration only when signal leads are less than 12 feet AND when all signal
32. lank Adapter Plate 1138 0940 rev 1 1 947994 DaqBoard 500 Series Installation Guide IG 3 Refer to the figure at the right Align the groove in the DaqBoard s PCI edge connector with the ridge of the desired PCI slot and with the PC s corresponding rear panel slot Push the board firmly into the PCI slot The board will snap into position Secure the board by inserting the rear panel adapter plate screw 10 Using the previous steps install additional boards into 11 available PCI bus slots if applicable to your application Replace the computer s cover 12 Plug in all cords and cables that were removed in step I 13 Apply power to and start up the PC Note At this point some PCs may prompt you to insert an IG 4 installation disk While this is rare if you do receive such a prompt simply place the install CD ROM into the disk drive and follow additional screen prompts DaqBoard 500 Series Installation Guide 947994 7 Align Groove in Edge Connector 9 Replace Screw 8 Push Board Firmly into PCI Slot Installing a DaqBoard 500 Series Board 1138 0940 rev 1 1 Step3 Configure Boards DaqBoard 500 Series Boards have no jumpers or switches to set Configuration is performed entirely through software Refer to the following figure and steps to complete the configuration The numbers in the figure correspond to the numbered steps amp pe Address ey Control Panel Daq Co
33. ld refer to the electronic documents that were automatically installed onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop You should keep your DaqBoard s serial number and your DaqView 500 authorization code if applicable with this document Space is provided below for recording up to 4 board numbers and their PCI bus slot locations The board serial number and board type 500 or 505 is located on the solder side of the board Serial Number DAGIBOARD S00 Board Identity on Solder Side of the Board e g 500 505 Boara o S S o Borde Boris ET S d o The host PC can support up to four Boards DaqView 500 Authorization Code Customers who ordered DaqView 500 can find their authorization code on the authorization code sheet located inside the sleeve of the install CD Customers who did not order DaqView 500 can run a 30 day free trial version as discussed elsewhere in the User s Manual Take ESD precautions packaging proper handling grounded wrist strap etc Use care to avoid touching board surfaces and onboard components Only handle boards by their edges or ORBs if applicable Ensure boards do not come into contact with foreign elements such as oils water and industrial particulate 947994 1138 0940 rev 1 1 IG 1 Reference Notes Each DaqBoard 500 Series plugs into a PCI bus slot Consult
34. lities eZ Frequency View is targeted at post acquisition frequency domain analysis including FFT s octave analysis plus dozens of other analysis features Documentation in Adobe PDF format is provided on the CD Refer to the PostAcquisition Analysis PDF The Daq Configuration control panel allows for interface configuration testing and troubleshooting Daq View can only be used with one DaqBoard at a time LabVIEW can be used with multiple boards For multiple board use via custom programming refer to the Using Multiple Devices section of the Programmer s Manual or to DaqCOM documentation 989394 Software and Board Operation 4 1 Reference Notes The software documents DaqView ViewXL and Post Acquisition Data Analysis User s Guide are available in PDF version During software installation Adobe PDF versions of user manuals will automatically install onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop Refer to the PDF documentation for details regarding both hardware and software Note that the PDF documents can be read directly from the CD by using the lt View PDFs gt button located on the opening install screen A copy of the Adobe Acrobat Reader is included on your CD The Reader provides a means of reading and printing the PDF documents Note that hardcopy versions of the manuals can be ordered from the facto
35. meters amp Flow Computers WA Air Velocity Indicators lA Turbine Paddlewheel Systems lA Totalizers amp Batch Controllers pH CONDUCTIVITY La pH Electrodes Testers amp Accessories WA Benchtop Laboratory Meters WA Controllers Calibrators Simulators amp Pumps WA Industrial pH amp Conductivity Equipment DATA ACQUISITION lA Data Acquisition amp Engineering Software WA Communications Based Acquisition Systems WA Plug in Cards for Apple IBM amp Compatibles WA Datalogging Systems l Recorders Printers amp Plotters HEATERS lA Heating Cable lt Cartridge amp Strip Heaters WA Immersion amp Band Heaters WA Flexible Heaters WA Laboratory Heaters ENVIRONMENTAL MONITORING AND CONTROL WA Metering amp Control Instrumentation lA Refractometers WA Pumps amp Tubing lA Air Soil amp Water Monitors lA Industrial Water amp Wastewater Treatment lA pH Conductivity amp Dissolved Oxygen Instruments 324545A 01 M4261 1106
36. mmunicates data A circuit or device that converts analog values into digital values such as binary bits for use in digital computer processing Application Program Interface The interface program within the Daq system s driver that includes function calls specific to Daq hardware and can be used with user written programs several languages supported A range of analog signals with positive and negative values e g 5 to 5 V see unipolar Buffer refers to a circuit or device that allows a signal to pass through it while providing isolation or another function without altering the signal Buffer usually refers to a A device or circuit that allows for the temporary storage of data during data transfers Such storage can compensate for differences in data flow rates In a FIFO First In First Out buffer the data that is stored first is also the first data to leave the buffer b A follower stage used to drive a number of gates without overloading the preceding stage c An amplifier which accepts high source impedance input and results in low source impedance output effectively an impedance buffer An amplifier used primarily to match two different impedance points and isolate one stage from a succeeding stage in order to prevent an undesirable interaction between the two stages Also see Buffer In reference to Dag devices channel simply refers to a single input or output entity In a broader sense an inpu
37. n most cases the 10 MQ of resistance is sufficient for the return of bias current Resistor Connection Scenarios If the Input Signal is DC Coupled If the Input Signal is AC Coupled Use a Resistor Value from 10 KQ to 100 KQ Use resistors with values from 10 KQO to 100 KQ Connect the resistor between a Connect one resistor between Input Signal Return ARET and AGND Input Signal High and Input Signal Low b Connect a second resistor between Input Signal Low and AGND Making resistor connections as indicated will significantly increase the load on the measurement source possibly reducing the measured voltage A trial and error approach may be required when trying to reduce common mode noise The following figure shows how to properly wire a Floating Source Signal in Differential configuration To AD Input Amplifer 7 100K CM Volts AC and DC AGND Computer Ground Differential Configuration for Floating Sources 2 10 Connections amp Pinouts 887293 DaqBoard 500 Series User s Manual Configuration 3 Configuration through Software DaqBoard 500 Series boards have no hardware jumpers or switches All data acquisition settings such as analog input data collection rates input voltage range and operating modes are configured through application software A DaqView software driver provides an application level software interface to Windows NT 2000 and XP Software packages such as LabVIEW can also be used
38. ncludes DaqCOM ActiveX COM support Out of theBox Software Out of the Box programs are convenient for fill in the blank applications that do not require programming for basic data acquisition and display amp d K DaqBoard 500 Series DaqView is a Windows based program for basic set up and data acquisition DaqView lets you select desired channels gains and a host of other parameters with a click of a mouse DaqView lets you stream data to disk and display data in numerical or graphical formats ViewXL allows you to interface directly with Microsoft Excel to enhance data handling and display Within Excel you have a full featured Daq control panel and all the data display capabilities of Excel eZ PostView provides a simple method of graphically viewing acquired data Up to 8 windows can be displayed on one screen with up to 16 channels overlaid on each window eZ PostView makes it simple to visually inspect acquired waveforms from multiple channels within seconds of acquiring the data Documentation in Adobe PDF format is provided on the CD Refer to the PostAcquisition Analysis PDF eZ TimeView amp eZ Frequency View eZ TimeView and eZ Frequency View are optional post acquisition analysis packages which are related to eZ PostView but include more features eZ TimeView is targeted at time domain analysis including min max peak peak mean RMS plus a wide variety of plotting and waveform viewing capabi
39. nd etc Some applications may use pre and post triggers to gather data around an instant or based on signal counts Transistor Transistor Logic TTL is a circuit in which a multiple emitter transistor has replaced the multiple diode cluster of the diode transistor logic circuit typically used to communicate logic signals at 5 V A range of analog signals that is always zero or positive e g 0 to 10 V Evaluating a signal in the right range unipolar or bipolar allows greater resolution by using the full range of the corresponding digital value See bipolar 959395 Glossary Notes Notes WARRANTY DISCLAIMER OMEGA ENGINEERING INC warrants this unit to be free of defects in materials and workmanship for a period of 13 months from date of purchase OMEGA s WARRANTY adds an additional one 1 month grace period to the normal one 1 year product warranty to cover handling and shipping time This ensures that OMEGAS customers receive maximum coverage on each product If the unit malfunctions it must be returned to the factory for evaluation OMEGA s Customer Service Department will issue an Authorized Return AR number immediately upon phone or written request Upon examination by OMEGA if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to mishandling improper interfacing operation ou
40. nded or 8 differential analog inputs multiplexed to a 16 bit A D converter with maximum throughput of 200 kHz programmable gains of 1 2 4 or 8 one counter input channel two timer output channels and 24 lines of digital I O In addition DaqBoard 500 includes two clocked DACs The boards feature a DMA engine for optimum performance in supported Windows environments Board connections are terminated in a 68 pin high density SCSI III connector at the rear of the PC A digital calibration method is used for both analog to digital and digital to analog conversions Please contact the factory should you believe your board to be in need of calibration 16 Single Ended or 8 Differential Unipolar Bipolar O to10V 10V 0 to 5V 5V 0 to 2 5V 0 to 1 25V 16 bit 200 kHz x1 x2 X4 x8 2 Clocked DACs DaqBoard 500 only TB 100 optional CA G55 68 Pin SCSI III Cable 3 ft CA G56 68 Pin SCSI Ill Cable Shielded 3 ft CA G56 6 68 Pin SCSI Ill Cable Shielded 6 ft D A Outputs do not apply to DaqBoard 505 DaqBoard 500 Series 0 mtoducton 1 1 Block Diagram AID Section PGA gD 16 SE i j neration Clock Expansion AID Clock Ge A D Trigger Out A D External Trigger In Clock Expansion TUCK TF D A Trigger Out D A External Trigger In 2 DAC DaqBoard 500 Only I Bit Main I O Connector 24 Digital I O Cou
41. nearity Accuracy Data Storage Clock Update Sources Max update rate channel Waveform Triggering Output Current Digital Inputs Outputs Channels Ports I O Direction Select Input Level High Level Input Voltage Low Level Input Voltage High Level Output Voltage Low Level Output Voltage Maximum Output Current DaqBoard 500 Series Note Specifications subject to change without notice Analog Outputs DaqBoard 500 Only 2 two clocked DACs designated as DACO and DAC 16 bit 10 V 0to 10 V 10 usec for 20 V step 0 25 LSB 25 guaranteed monotonic 0 001 V Internal FIFO PC Memory o Asynchronous o Internal Pacer o External TTL 100khz o Software Command o External Trigger TTL 5 mA 24 accessible from main I O connector 3x8 bit Ports Software selectable per three 8 bit ports Ports A B and C 5 0V 3 3V CMOS LSTTL compatible with 4 7 K ohm pull up resistor JG 5 Volts A 74ACT245 24V Control Circuit 0 4 V Digital I O Circuit Low 12 mA sinking High 12 mA sourcing 947294 Specifications 6 3 Channels Pin Connections SCSI 68 TB 100 Option Input Delay Max Count Max Input Frequency Input Levels High Level Input Voltage Low Level Input Voltage Channels Pin Connections TMRO SCSI 68 TB 100 Option TMRI SCSI 68 TB 100 Option Output Rates Output Levels High Level Output Voltage Low Level Output Voltage Ma
42. nfiguration Network Connections amp Automatic Updates Device Inventory BAB CSNY S 4 mpag Configuration P Date and Time Search Th Printers and Faxes of Taskbar and Stark Menu Help and Support EJ Run DagBoardzKO BE DagBoad500_0 5 Shut Down Windows XP Professii Open the Start menu from the Windows desktop Select Settings Double click Dag Configuration This opens the Dag Configuration window 1 2 3 Select Control Panel 4 5 Double click on the Device Inventory s DaqBoard 500 Series icon In the figure above the DaqBoard 500 appears as DaqBoard500 0 The DaqBoard s Properties tab will appear following figure Note If the DaqBoard icon is not present skip to the upcoming section Using Add Device z4 Dag Configuration DaqBoard 300 Test Hardware Driver Versions r Device Settings Device Name B Device Type DagBoard 500 DaqBoard 500 Series Hardware Bus 3 Slot 1 S N 0 Model 500 PCI The serial number is shown for reference only When wou have multiple boards device name is matched to particular board by physical slot not by serial number OF Cancel Apply Accessing the DaqBoard 500 Properties Tab 6 Enter a Device Name in the text box or use the default e g DaqBoard500 0 The Name is for identifying the specific DaqBoard but actu
43. nter I In or 1 Counter Ps nl 7 Alt DAC Clock In 2 Timers Timer 0 Out or Alt A D Trig Out O Timer1 Out or Alt A D Clock Out DaqBoard 500 Series Block Diagram 1 2 Introduction 947294 DaqBoard 500 Series User s Manual Board Features Analog I O DaqBoard 500 Series boards support 16 single ended or 8 differential analog inputs multiplexed to a 16 bit A D converter The input multiplexer is supported by a 176 element channel gain RAM which allows the board to select gain on a per channel basis and to access channels in any order The 16 bit A D has a maximum throughput of 200 kHz An A D Pacer clock is provided to allow sampling rates from 0 0009 Hz to 200 kHz The DaqBoard 500 includes two DACs for analog output Digital I O DaqBoard 500 Series boards have 24 lines of TTL level digital I O programmable in three 8 bit ports as either inputs or outputs All 24 lines are brought out via the main 68 pin SCSI III connector Counter 1 Counter 1 CNTR1 can provide either cumulative or incremental counting capabilities The counter is capable of counting 5 V LSTTL rising edges to a maximum count of 131071 decimal Timer 0 and Timer 1 Timer0 TMRO and Timer TMR1 provide a 50 duty cycle square wave 5 V LSTTL output with an output frequency range of 7 7 Hz to 500 kHz The Timer s output frequency is based on a I MHz oscillation with a divisor of 1 to 65536 decimal PCI Interface DaqBoard 500 Series boards c
44. ommunicate to the PCI bus through an interface controller The boards are fully plug and play and have no switches potentiometers or jumpers The boards feature digitally calibrated A D and D A s and plug and play compatibility to provide automatic integration into the PC s configuration when first installed The PCI interface provides access to all on board registers for software configuration of all on board functions For maximum performance the boards feature a 32 bit bus mastering DMA engine on the ADC and DAC hardware to provide high speed transfers between the board and system memory DMA Engine Interrupt latency on the PCI bus can be extremely inefficient for high speed data acquisition For this reason DaqBoard 500 and DaqBoard 505 each use an onboard DMA engine The engine analogous to the older ISA type DMA controller supports scatter gather buffer chaining with a pair of chain address registers These registers point to system memory for use in the buffered transfer The DMA controller is loaded with the previously allocated physical addresses of the buffers and only generates interrupt requests when the current transfer buffer has been completed This reduces the burden of CPU interrupt intervention Both analog input and analog output channels have on board DMA engine support for high speed data transfers The two analog output channels have individual DMA engines and clocking methods available The DAC clocking source m
45. ory Table of Contents OMB DAQBOARD 500 Series Installation Guide 1 Introduction Basic Information 1 1 Block Diagram 1 2 Board Features 1 3 2 Connections and Pinouts Overview 2 1 68 Pin SCSI Type Ill Connector 2 2 Signal Definitions 2 3 TB 100 Terminal Connector Option 2 6 External Connections 2 7 3 Configuration Configuration through Software 3 1 Analog Input Configuration 3 1 ADC Ranges 3 1 DAC Ranges 3 2 4 Software and Board Operation Overview 4 1 Out of the Box Software 4 1 Drivers for Third Party Icon Driven Software DaqCOM Driver 4 2 Theory of Operation 4 3 5 CE Compliance Overview 5 1 CE Standards and Directives 5 1 Safety Conditions 5 2 Emissions Immunity Conditions 5 2 6 Specifications Glossary DaqBoard 500 Series 989394 This product requires one of the following Operating Systems Windows 2000 Windows XP O 2004 2005 OMB DAQBOARD 500 Series Installation Guide This guide tells how to complete the following steps for a successful installation Step 1 Install Software page 2 Step 2 Install Boards in Available PCI Bus Slots page 3 Step 3 Configure Boards page 5 Step 4 Test Hardware page 6 Reference Note After you have completed the installation you shou
46. rsions may be controlled by the on board pacer clock This timer can be programmed to generate a periodic clock rate up to the ADC s maximum rate or as slow as 4 samples per hour ADC External Event Clocking Conversions may also be caused by an external event ADCLKIN is an edge sensitive input that can be programmed to cause conversions The ADCLKIN is selectable as either rising or falling edge sensitive Once an ADC clock is received the Analog input is immediately sampled Converted data will become available within 5 microseconds max Any attempt to clock the ADC while an A D conversion is currently running will result in a Clock Error ADC Maximum Clock Rate The maximum rate which the ADC should be clocked and retain optimal accuracy will vary depending on several factors These include ADC resolution 16 bits gain setting and sampling mode DaqBoard 500 Series boards use16 bit ADC chips The chips sample at rates up to 200 kilo samples per second These limits may not be exceeded If the sample clock runs faster some of the clock pulses will be ignored by the circuitry and a clock error will be generated The second factor involves the front end circuitry The bandwidth of the front end will vary depending on the gain setting and the required resolution The bandwidth will limit the maximum signal frequency the board can pass Essentially when sampling a single channel repeatedly the ADC may be operated up to its maximum speed bu
47. ry Drivers for Third party Icon driven Software Daq View can only be used with one DaqBoard at a time LabVIEW can be used with multiple boards For multiple board use via custom programming refer to the Using Multiple Devices section of the Programmer s Manual or to DaqCOM documentation LabVIEW The DaqBoard 500 Series boards are fully supported by our data acquisition VIs for LabVIEW and include engineering data conversion data display and logging capabilities DaqCOM Driver The DagqCOM suite of programming allows applications developers to rapidly develop and deploy custom systems by leveraging COM Component Object Model technology DaqCOM does this by providing a powerful easy to use interface to most programming languages including Visual Basic VBA C and J In addition DagqCOM supports the new Windows NET architecture and includes examples for VisualBasic NET and C Support for VisualStudio NET is accomplished via the COM Interop feature within VisualStudio NET 4 2 Software and Board Operation 988994 DaqBoard 500 Series Theory of Operation Process Definitions In order to best understand how to operate the various board functions it is important to first understand the language that will be used to describe the board processes The following is a list of pertinent terms and definitions used in this document ADC Analog to Digital Converter also referred to as A D This is the circuitry tha
48. s Manual TB 100 Notes Apply to the preceding table Note 1 Note 2 Note 3 Note 4 Note 5 Note 6 Digital Common Pins on the SCSI III connector are 35 36 and 40 Analog Common Pins on the SCSI III connector are 24 27 29 32 59 64 and 67 References are not provided for DaqBoard 500 Series devices For this reason POSREF and NEGREF are tied to the Analog Return signals POSREF connects to ARET1 Pin 20 on the DaqBoard and NEGREF connects to ARETO Pin 54 on the DaqBoard In regard to DaqBoard 500 and DaqBoard 505 TB 100 connectors labeled XAPCR and CNTO are both used for ADCLKIN ADC Clock and therefore cannot be used at the same time The XAPCR connector is assigned to SCSI 68 connector pin 2 The TB 100 connector labeled CNTO used for ADCLKIN is assigned to SCSI 68 connector pin 5 Note that DaqBoard 500 Series devices have only one counter implemented i e Counter 1 Counter 0 is not implemented In regard to DaqBoard 500 and DaqBoard 505 TB 100 connectors labeled CNT1 and XDPCR are the same dual function signal DACKLIN CNTR1 and therefore cannot be independently driven CNT1 is assigned to SCSI 68 connector pin 39 XDPCR is assigned to SCSI 68 connector pin 1 The following table provides screw terminal reference for connecting analog channels differentially as opposed to single ended Differential Channels Screw Terminal Reference ACH10 ACH 1 ACH12 ACH13 ACH14 E
49. s is a timed periodic signal that may either directly clock the ADC DAC or initiate a burst of ADC conversions Thus the PACER clock is exclusive to both the ADC and DAC channels DaqBoard 500 Series 988994 Software and Board Operation 4 3 ADC and DAC Trigger This is the signal or impetus that initiates or terminates an Acquisition Essentially the Trigger Starts or Stops the ADC or DAC PACER Clock ADC Channel Configuration RAM This is the term used for the ADC s Channel Gain Range and Input Configuration lookup table The length of this table can be anywhere from 1 element to 176 elements When an ACQUISITION is in process the board will sequentially go through this list to determine the channel and gain setting for the next conversion Thus channels may be sampled in any order and at any gain Note however that for maximum performance it is recommended that channels with like gains be grouped together in the sample sequence ADC and DAC DMA Short for Direct Memory Access DMA is the most self sufficient of the Acquisition Modes available over the PCI bus In this mode data from each conversion is automatically transferred directly from the board to or from a pre specified block of system memory DMA allows the acquisition process to run in the background with virtually no software overhead Clocking the ADC The source of the ADC clock can be a Pacer Clock or an External Event ADCLKIN ADC Pacer Clocking A series of A D conve
50. s may void the warranty iii Your order was carefully inspected prior to shipment When you receive your order carefully unpack all items from the shipping carton and check for physical signs of damage that may have occurred during shipment Promptly report any damage to the shipping agent and your sales representative Retain all shipping materials in case the unit needs returned to the factory Note Using this equipment in ways other than described in this manual can cause personal injury or equipment damage Before setting up and using your equipment you should read all documentation that covers your system Pay special attention to Warnings and Cautions During software installation Adobe PDF versions of user manuals will automatically install onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop Initial navigation is as follows Start Desktop Start pull down menu gt Programs gt Omega DaqX Software You can also access the PDF documents directly from the data acquisition CD by using the lt View PDFs gt button located on the opening screen Refer to the PDF documentation for details regarding both hardware and software A copy of the Adobe Acrobat Reader is included on your CD The Reader provides a means of reading and printing the PDF documents Note that hardcopy versions of the manuals can be ordered from the fact
51. s share a common ground the signals must be local to one another With the Single Ended configuration the input signals are tied to the Channel Hi side of an analog input and all signal low sides are tied to the SGND ground on the data acquisition board Single Ended configuration should only be used when Channel to channel isolation is not required Ground isolation is not required Signal leads are less than 12 feet Of the two possible input configurations Single Ended offers the least amount of noise rejection Because of this Low Level signals should only be wired in Single Ended configuration when you are certain that there is little or no noise being introduced to the signal from the system or the environment The following figure depicts proper wiring for Single Ended configuration HI To A D Input mplifer Floating Source no local connection Computer Ground to ground Single Ended Configuration Not recommended for Low Level Signals 2 8 Connections amp Pinouts 887293 DaqBoard 500 Series User s Manual Differential DIFF In installations where each Ground Referenced Source signal has a local ground signals located remote from one another the Differential configuration must be used Since the Differential configuration only responds to the difference in a signal between its high and low voltages any Common Mode Voltage will be cancelled out In addition Differential configuration provides the best
52. t channel is a signal path between the transducer at the point of measurement and the data acquisition system A channel can go through various stages buffers multiplexers or signal conditioning amplifiers and filters Input channels are periodically sampled for readings An output channel from a device can be digital or analog Outputs can vary in a programmed way in response to an input channel signal Common mode pertains to signals that are identical in amplitude and duration also can be used in reference to signal components Common mode voltage refers to a voltage magnitude referenced to a common point that is Shared by two or more signals Example referenced to common Signal 1 is 5 VDC and Signal 2 is 6 VDC The common mode voltage for the two signals is 5 5 VDC 5 6 2 An undesired transfer of signals between systems or system components Crosstalk causes Signal interference more commonly referred to as noise A digital signal is one of discrete value in contrast to a varying signal Combinations of binary digits Os and 1s represent digital data A circuit or device that converts digital values binary bits into analog signals A DIP switch is a group of miniature switches in a small Dual In line Package DIP Typically users set these switches to configure their particular application The differential mode measures a voltage between 2 signal lines for a single channel Also see single ended mode 959395
53. t samples the voltage present at one of the inputs and translates that reading to a number that is representative of the input voltage The number supplied by the ADC 1s referred to as the ADC DATA or RAW DATA and its units are bits or binary digits DAC Digital to Analog Converter also referred to as D A This is the circuitry that translates a binary data word to a specific voltage level The two DACs on the DaqBoard 500 are specified for DC accuracy The DACs can be clocked and triggered The DAC outputs are updated as soon as they receive new data Note DaqBoard 505 has no DACs ADC Channel One of 16 analog input channels see ADC ADC Raw Data This is the unscaled number returned by the ADC It will be in the range of 0 to 65536 regardless of whether the data coding is for unipolar or bipolar inputs The number is typically multiplied by a scale factor to convert it to useful engineering units For example the bipolar 10 V input uses a scale factor of 005 V bit An ADC reading of 1000 when multiplied by 005 V results in 5 000 V Similarly the 16 bit scale factor for the 10 V scale is 000130140 V bit DAC Raw Data This is the unscaled number sent to each DAC channel It will be in the range of 0 to 65536 regardless of whether the data coding is for unipolar or bipolar inputs The number is typically multiplied by a scale factor to convert it to useful engineering units For example An input in the range of 0 to 10 V uses a sc
54. t the front end will filter out any frequency components of the input signal that exceeds the bandwidth of the system When changing channels even if the input signal is static the front end is required to respond to a changing input each time the channel is changed The net effect is that the maximum sampling speed of the ADC is limited to the bandwidth of the front end when changing channels Each time a conversion is initiated the ADC goes into hold mode and the front end begins to settle on the next channel 4 4 Software and Board Operation 988994 DaqBoard 500 Series Starting Triggering an ADC Acquisition There are several methods that can be used to initiate an acquisition all of these are achieved by triggering or gating the ADC clock as mentioned previously Note that a trigger is an edge active event and a gate is a level controlled enable An acquisition can be initiated via the following o Software o External Gate ADTRGIN o External Trigger ADTRGIN ADC Software Software can be used to start and stop the on board ADC pacer clock ADC External Gate An ADC clock may be switched On and Off with the external ADTRGIN input The input is level sensitive and selectable as either active high or active low control If the on board pacer clock drives the ADC the external gate input is used to enable and disable the ADC s pacer clock after being polarity conditioned The ADC clock will be enabled as long as the
55. tside of design limits improper repair or unauthorized modification This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows evidence of having been damaged as a result of excessive corrosion or current heat moisture or vibration improper specification misapplication misuse or other operating conditions outside of OMEGAS control Components in which wear is not warranted include but are not limited to contact points fuses and triacs OMEGA is pleased to offer suggestions on the use of its various products However OMEGA neither assumes responsibility for any omissions or errors nor assumes liability for any damages that result from the use of its products in accordance with information provided by OMEGA either verbal or written OMEGA warrants only that the parts manufactured by the company will be as specified and free of defects OMEGA MAKES NO OTHER WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER EXPRESSED OR IMPLIED EXCEPT THAT OF TITLE AND ALL IMPLIED WARRANTIES INCLUDING ANY WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY DISCLAIMED LIMITATION OF LIABILITY The remedies of purchaser set forth herein are exclusive and the total liability of OMEGA with respect to this order whether based on contract warranty negligence indemnification strict liability or otherwise shall not exceed the purchase price of the component upon which liability is based In no event shall OM
56. wrist straps ESD bags and cartons and related procedures Overview DaqBoard 500 Series boards communicate external from the host PC through a 68 pin SCSI III connector An optional TB 100 terminal board offers convenient screw terminal connections for all signal I O Pinouts for both the DaqBoard 500 Series connector and the TB 100 follow The TB 100 option can be easily connected to a DaqBoard 500 or DaqBoard 505 via one of three 68 conductor cables These are CA G55 a 3 ft unshielded cable CA G56 a 3 ft shielded cable and CA G56 6 a 6 ft shielded cable DaqBoard 500 Series User s Manual 887293 Connections amp Pinouts 2 1 68 Pin SCSI Type Ill Pinout Pin34 33 2 Pin Pin 8 47 36 Pin 35 Standard 68 Pin SCSCI Type III Socket Female Connector with Orb Pin Signal Description Comments Pm Signal Description Comments 1 DACLKIN External DAC Clock In or 35 DGND Digital Ground CNTRI Counter 1 Rising or Falling See Pin 39 Note Edge Sensitive 2 ADCLKIN External ADC Clock In 36 DGND Digital Ground See Pin5 Note 3 3 ADTRGOUT Internal ADC Trigger Output 37 ADCLKOUT Internal ADC Clock Output TMRO Timer 0 Clock Output TMRI Timer 1 Clock Output 4 Reserved 38 DATRGIN DACO External Gate Level Controlled or External Trigger Ede 5 ADCLKIN External ADC Clock In 39 DACLKIN External DAC Clock In or See Pin2 Note 3 CNTRI Counter 1 Rising or Falling See Pin I Note 4
57. ximum Output Current Physical amp Environmental Size Connector Operating Temperature Vibration 6 4 Specifications Note Specifications subject to change without notice Counter 1 Counter designated as CNTR1 1 CNTRI1 Pin 1 or Pin 39 Shared with DACLKIN Connector CNT1 or XDPCR Shared with DACLKIN 100ns max 65536 900 Khz max 5 V CMOS TTL with 4 7 K ohm pull up resistor 2 V min High level input voltage 0 8 V max Low level input voltage Timers Frequency Pulse Generators 2 Timers designated as TMRO and TMR1 2 Pin 3 Shared with ADTRGOUT Connector TMRO Shared with ADTRGOUT Pin 37 Shared with ADCLKOUT Connector TMR1 Shared with ADCLKOUT 7 6 Hz to 500 Khz 50 Duty Cycle Square Wave 5 V CMOS TTL with 4 7 K ohm pull up resistor 2 4V 0 5 V Low 24 mA sinking High 24 mA sourcing 165 x 15x 108mm _ 6 5 x 0 6 x 4 2 in 68 pin standard SCSI Type III female connector 32 F to 140 F 0 C to 60 C MIL STD 810E Category 1 and 10 947294 DaqBoard 500 Series Glossary Acquisition Analog Analog to Digital Converter ADC API Bipolar Buffer Buffer Amplifier Channel Common mode Common mode voltage Crosstalk Digital Digital to Analog Converter DAC DIP switch Differential mode Glossary A collection of scans acquired at a specified rate as controlled by the sequencer A signal of varying voltage or current that co
58. xternal Connections WARNING Always turn the computer power OFF and unplug it before connecting or discon necting a screw terminal panel or a cable to the PCI card Failure to do so could result in electric shock or equipment damage The DaqBoard 500 Series boards bring out 5 V to the main I O connector J1 This power line is fused to protect the boards Connecting or disconnecting cables or screw terminal panels as well as any user connections to the power line may blow a fuse or worse cause damage to the board If you are getting incorrect data readings check that the fuse is not blown The power line fuse for the 5V to J1 is designated as F3 Itis a Pico Fuse with a 1 0A 125V rating Connecting User Wiring Incorrect connection of user wiring is one of the most common problems experienced by users of data acquisition boards To ensure proper results you must first determine what type of signal source you are measuring Ground Referenced Source or Floating Source and then choose the appropriate input configuration on your data acquisition board Differential or Single Ended DaqBoard 500 Series User s Manual 887293 Connections amp Pinouts 2 7 Signal Types Floating Sources A Floating Source is a signal that has no connection to the building s power ground Examples of Floating Sources are thermocouples batteries and battery powered devices and signals from optically isolated devices When connecting Float
59. y handle boards by their edges or ORBs if applicable Ensure boards do not come into contact with foreign elements such as oils water and industrial particulate IMPORTANT Bus Mastering DMA must be Enabled For a DaqBoard 500 Series board to operate properly Bus Mastering DMA must be Enabled on the PCI slot for which the board is to be installed Prior to installation verify that your computer is capable of performing Bus Mastering DMA for the applicable PCI slot Note that some computers have BIOS settings that enable or disable Bus Mastering DMA If your computer has this BIOS option ensure that Bus Mastering DMA is Enabled on the appropriate PCI slot Refer to your PC Owner s Manual for additional information regarding your PC and enabling Bus Mastering DMA for PCI slots 1 Turn off power to and UNPLUG the host PC and externally connected equipment 2 Remove the PC s cover Refer to your PC Owner s Manual as needed 3 Choose an available PCI bus slot 4 Carefully remove the DaqBoard from its anti static protective bag If you have not already done so write down the serial number of your board at this time 5 Refer to the figure at the right Remove the screw that 6 Remove Blank secures the blank adapter plate which is associated with the Adapter Plate PCI Slots PCI slot you will be using Refer to your PC Owner s p Manual if needed 6 Remove the blank adapter plate PC Rear Panel Removing a B
60. your PC owner s manual as needed Minimum System Requirements e PC system with Pentium 3 Processor 500 MHz 128 M byte RAM e Windows 2000 or XP Operating System D Test Hardware through software Installation A Pictorial Overview Step 1 Install Software IMPORTANT Software must be installed before installing hardware I Remove previous version Daq drivers if present You can do this through Microsoft s Add Remove Programs feature 2 Place the Data Acquisition CD into the CD ROM drive Wait for PC to auto run the CD This may take a few moments depending on your PC If the CD does not auto run use the Desktop s Start Run Browse feature and run the Setup exe file 3 After the intro screen appears follow the screen prompts Upon completing the software installation continue with step 2 Install Boards in available PCI Bus slots IG 2 DaqBoard 500 Series Installation Guide 947994 1138 0940 rev 1 1 Step 2 Install Boards in available PCI Bus slots IMPORTANT Software must be installed before installing hardware Turn off power to and UNPLUG the host PC and externally connected equipment prior to removing the PC s cover and installing the DaqBoard Electric shock or damage to equipment can result even under low voltage conditions Take ESD precautions packaging proper handling grounded wrist strap etc Use care to avoid touching board surfaces and onboard components Onl

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