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USB-AIO Family User Manual

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1. 27 Adding CJC when using thermocouples with the USB AIO family 28 Specifications for AIMUX 64 31 Chapter 9 Signal Conditioner Model AIMUX 32 32 Features u y uice ege eee ee ne yaaa asya A 32 Functional D SCription i Sas EE aseo dL cue er adr Ee eee oH Ee cup ser d apk sss i 32 Programming Differences from Base Modlel sss nennen nennen nnne 33 Options for Models that include the AIMUX 32 U n nsn 33 Optional Accessories for Models that include the AIMUX 32 2222222 33 Front end circuit and connection 5 34 Adding CJC when using thermocouples with the 32 2 2 4 36 AIMUX 32 Hardware Details ih et trt E e Er e PER Rr AI 38 Powering the AIMUX 32 boards etn Ue iP e tr eve C pd PL ee 40 AIMUX 32 SpecifiCaltlon 2 uuu te entem eee cota i e TC Eos A a pees 44 Appendix A Counter Timer SQ uu au ecce si licae ecc resin 45 Appendix B Calibration 1 3 EEE 47 System Calibration Utili
2. 29 Table 8 2 AIMUX 64 J4 37 Pin Female Connector Pin Assignments 30 Table 8 3 AIMUX 64 J2 DB25 Female Connector Pin Assignments esee 30 Table 8 4 AIMUX 64 Signal Names and Descriptions J U u 31 Table 9 1 AIMUX 32 J5 DB25 Female Connector Pin Assignments esee 39 Table 9 2 AIMUX 32 J5 Signal Names and Descriptions u 39 Table 9 3 AIMUX 32 P2 Power Connector IDC 38 u J J 40 Table 9 4 AIMUX 32 P2 Signal Names and Descriptions U u 40 Table 9 5 AIMUX 32 J3 Connector Pin Assignments 0 7 40 Table 9 6 AIMUX 32 J3 Signal Names and Descriptions 41 Table 9 7 AIMUX 32 J4 Connector Pin Assignments 2 222 22 2 41 Table 9 8 AIMUX 32 J4 Signal Names and Descriptions 41 Table 9 9 AIMUX 32 J3 DB37 Pin outs w CH per Board Stack Position 42 Table 9 10 AIMUX 32 J4 DB37 Pin outs w CH per Board S
3. 51 LIST OF TABLES Table 1 1 12 Bit OEM and Base Model Number Structure u u 12 Table 1 2 12 Bit OEM and Base Model Product Selector eese 12 Table 1 3 16 Bit OEM and Base Model Number Structure 13 Table 1 4 16 Bit OEM and Base Model Product Selector 13 Table 1 5 12 Bit DAQ PACK Model Number Structure eese seen u u u u 14 Table 1 6 12 Bit DAQ PACK Model Product Selector J eese 14 Table 1 7 16 Bit DAQ PACK Model Number Strucuture u u u u 15 Table 1 8 16 Bit DAQ PACK Model Product Selector J u u u 15 Table 3 1 Base Model Option Selection Map u u u u u u u u u 18 Table 4 1 Product ID to Model Number l 20 Table 6 1 Base Model 68 SCSI Connector Pin Assignments 22 Table 6 2 Base Model Signal Name Descriptions and Directions 23 Table 8 1 AIMUX 64 J3 37 Pin Female Connector Pin Assignments
4. wc wc wc No Pio cus omes cue 29 css cree Fw ones onere cue cniz creo cum _ cue onse cue omne a1 cse _ cur onsen cu omes a2 cer cror cme aa cus oen cue cme Fs cu cue omes sa cnoi cmas Pas cuo Che cues as cues cros cme cus ones cros a oror cros omer Cx aono pco paco Fw w ew ap T T 1 Table 9 10 AIMUX 32 J4 DB37 Pin outs w CH per Board Stack Position 42 Manual USB Analog Input Output Family Modules 0 20 J4 DB37 FEMALE J5 DB25 FEMALE J3 DB37 FEMALE Figure 9 13 USB AlOxx 128A Mechanical Drawing 43 Manual USB Analog Input Output Family Modules AIMUX 32 Specification Analog Inputs Number of channels 32 differential per board up to four boards or 128 differential Voltage ranges Additional ranges of 0 100mV 0 200mV 0 400mV 0 500mV 0 2 5V 100mV 200mV 400mV 500mV 2 5V or 0 1 0 5mV 0 10mV 0 20mV 0 50mV imV 5mV 10mV 20mV 50mV Current inputs 4 20mA 10 50mA Max voltage divider Up to 30V Input impedance 1MO Sensor excitation voltage
5. Each channel input has a slight positive bias to facilitate measurement of signals close to analog ground no signal information is lost due to negative offset of the ADC does not apply to 12 xxE models Each channel input has an over voltage protection of 40V to 55V A D Conversion Start This board offers three software selectable sources for A D Conversion Start Software Start Timer Start and External Start Trigger Software Start generates an A D Conversion Start every time the software command is issued The maximum frequency for a Software Start is roughly 4kHz Timer Start uses the on board timer to generate an A D Conversion Start Frequencies ranging from 2 33 10 Hz to 500kHz are possible with Timer Start External Start Trigger uses the External Trigger pin on the connector to generate an A D Conversion Start Frequencies up to 500kHz are allowed for External Start Trigger Note that the frequency of A D conversion starts CANNOT exceed the speed of the A D conversions A D Conversion Start is also software configured as rising or falling edge Furthermore it can be disabled by driving the A D Conversion Start Enable pin on the connector low By default this signal is pulled high and A D Conversion Start is enabled If A D Conversion Start Enable goes low during a conversion the current channel plus any oversampling refer to the Oversample section will complete all its conversions before A D Conversion Start is disabled On
6. Economy version 250ksamples sec max aggregate O Calibration Hardware 16 Two on board references calibrated real time output 16 Two on board references e 12 bit resolution versions O Sampling rate 12 Advanced version 500ksamples sec max aggregate 12 Standard version 250ksamples sec max aggregate 12 Economy version 100ksamples sec max aggregate O Calibration Hardware 12 Two on board references calibrated real time output 12 Two on board references 1 2 xxE None e System calibration program provided to calibrate entire system Channel by channel ranges of 0 1V 0 2V 0 5V 0 10V 1V 2V 5V 10V software selectable e Signal conditioning available on 32 64 96 and 128 input models for RC filters on each input Voltage divider on each input 4 20mA and 10 50mA current inputs Thermocouple with break detect includes Temp sensor for cold junction RTD measurement Bridge completion Precision 10V excitation at each I O connector for RTD and Bridge Completion e Conversion Start sources Software Timer and External Trigger edge software selectable e A D Modes Single Channel or Scan e Noise reduction with Channel Oversampling 6 Manual USB Analog Input Output Family Modules Over voltage protection of 40V to 55V Two 16 bit Digital to Analog D A outputs optional D A ranges of 0 5V
7. 8 DIFF ojo lt lt ojn 2 5V via USB or Ext Supp 5V via USB or Ext Supply 15V 5V via AIMUX 32 15V 5V via AIMUX 32 USB AIO16 16E 165 8 DIFF A D AIMUX 32 x2 DB37 Female 4 15V 5V via AIMUX 32 00 YE lt lt nln z s amp izis amp izisiz lt O m lt O lt lt m lt O 32 2 15V 5V via AIMUX 32 5V via USB or Ext Suppl 250 YE 5V via USB or Ext Suppl 500 YES 15 5V AIMUX 32 8 USB AIO16 128E 128 DIFF A D AIMUX 32 x4 0837 Female x8 15V via AIMUX 32 Table 1 4 16 Bit OEM and Base Model Product Selector n o 2 lt 2 60 13 Manual USB Analog Input Output Family Modules DPK XXX12 12 Bit Input DAQ PACK Models Enclosed and Integrated USB Data YYYZ Acquisition Modules Al Analog Inputs AIO Analog Inputs Outputs 16 16S E 8DIFF Channels 64M 64S E 32DIFF Channels DAQ PACK M Series 32 64 96 128 32 64 96 128 DIFF Channels A Advanced Model 500k CALibration REFerence Real Time Cal HW constants stored on board update A D values in real time No Letter Standard Model 250k CALibration REFerence E Economy Model 100k Table 1 5 12 Bit DAQ PACK Model Number Structure 12 Bit DAQ AID Rate Real D A Connector s Power Required PACK Models dye REF ene Al12 165 8 DIFF 500 YES YES 0 68 Pin Male SCSI 5V via USB or Ext Supply Al
8. E Ch2 DIFF SE Ch3 DIFF E ND Daon 1NI neno ar 088 7 SE Ch7 DIFF p ND EN MUXCTL t_ muxct 5 EN 57 EN gt gt gt gt gt e c NI N wi nj 10 gt Q 22 gt lt gt e 0 ND se s rq o poa e Noo 2 e 2 eo ojojoj 2 2 Counter Clock Table 6 1 Base Model 68 pin SCSI 22 Signal Name Ch8 SE DIFF AGND Ch9 SE 1 DIFF AGND Ch10 SE Ch2 DIFF AGND Ch11 SE Ch8 DIFF AGND Ch12 SE Ch4 DIFF AGND Ch13 SE Ch5 DIFF AGND Ch14 SE Ch6 DIFF Ch15 SE Ch7 DIFF AGND 15V Factory Use 15V Factory Use 1015 1013 1011 107 105 103 101 GND A D Conversion Start Enable External Trigger Connector Pin Assignments Manual USB Analog Input Output Family Modules Channel 0 thru Channel 7 Single ended or Channel 0 thru Channel 7 Differential non inverting input Channel 0 thru Channel 7 Single ended current input or Channel 0 thru Channel 7 Differential non inverting current input Channel 8 thru Channel 15 Single ended or Channel 0 thru Channel 7 Differential inverting input Channel 8 thru Cha
9. E suene P suae Dee eee em 2 e one e e ome m e s om em e eee em Eee ee s o oe Es e e he oe oe Fw e fe e o em fs o fe oem ao s oe oe m o EM ci ie emen o J T Table 9 7 AIMUX 32 J4 Connector Pin Assignments DB37F CEC DACO ESE Digital to Analog Output 0 DACO s ground when installed Otherwise Analog Ground me Table 9 8 AIMUX 32 J4 Signal Names and Descriptions 41 Manual USB Analog Input Output Family Modules Refer to Table 9 9 Table 9 10 and Figure 9 13 for help in gaining an understanding of what channels are on what connectors and on which board in the integrated stack Pin post Pos2 poss posa post Pos2 poss Stack Poss Pa ow creer cues 20 cree La cm ems cues cnore 21 cm cno Ls ow Che 22 cnoe cree cre Pa cr ems cur ome 28 cres Ls cue Che cue ooo 22 cre cnoe cree cmoo Ls cus crer cue cmon 25 cns cnor creo ewe Ch cum 28 cree cmo Pe cw cnor cur ems 27 cr
10. 5V 102 DPK Al16 64E 64 DIFF 25 NO 0837 Female x 4 15V 5V 105 0 0 08 25 ojo NIO AJ amp 116 DPK AIO16 64ME 64SE 32 DIFF 250 YE DPK AIO16 64E 64 DIFF 7 DPK AIO16 96A 96 DIFF 500 coo DPK AIO16 64A 64 DIFF YES 2 DB37 Female x 4 15V 5V 0 DB37 Female x2 5V via USB or Ext Supply 0 DB37 Female x2 5V via USB or Ext Supply 0 DB37 Femalex6 15V 5V 0 DB37Femalex 15V 5V 0 DB37 Femalex8 gt 15 5V 0 2 01 DPK AI16 64A_ 64 DIFF 500 5 YES 0 DB37 Female 4 15V 5V 15V 5V 2 5V via USB or Ext Supply 5V via USB or Ext Supply 15V 5V 2 DB37 Female x 2 15V 5V 2 DB37 Female x4 15V 5V DPK AIO16 64MA 64SE 32 DIFF E DB37 Female x 2 5V via USB or Ext Suppl 5V via USB or Ext Supply 15V 5V DPK AIO16 906E 96 DIFF 250 YES NO 2 DB37Femalex6 15V 5V_ 120 DPK AIO16 128E 128 DIFF 1250 YES NO 2 DB37Femalex8 t15V 5V Table 1 8 16 Bit DAQ PACK Model Product Selector Base Model Options e P External AC DC adapter power jack regulator installed e OEM Board only no enclosure e DIN DIN rail mounting provision T Extended Temperature Operation 40 to 85 C To order specific custom current input configurat
11. 2 AIMUX32 _ 0837 Female x2 15V 5V via AIMUX 32 USB AIO12 64A 15V 5V via AIMUX 32 USB AIO12 64 64 DIFF 250 YES NO 2 A D AIMUX 32 x2 _ DB37 Female x4_ 15V 5V via AIMUX 32 320Q 32 40 gt o NX x2 12 64 64DIFF 100 NO NO 2 A D AIMUX 32 x2 _ DB37 Female x4 _ 15V 5V via AIMUX 32 USB AIO12 64MA 5V via USB or Ext Suppl USB AIO12 64M 250 YES NO 2 0 AIMUX 64 DB37 Female x2 5V via USB or Ext Suppl USB AIO12 64ME 645 32 DIFF 1100 NO NO 2 AIMUX 64 DB37 Female x 2_ 5V via USB or Ext Supply USB AIO12 96A 15V via AIMUX 32 3 15 5V AIMUX 32 100 NO NO 2 A D AIMUX 32 x3 _ DB37 Female x 6_ 15V 5V via AIMUX 32 USB AIO12 128A 5 USB AIO12 128 6 USB AIO12 128E 128 DIFF 100 NO NO 2 A D 2 4 DB37 Female x 8_ 15V 5V via AIMUX 32 Table 1 2 12 Bit OEM and Base Model Product Selector cic DID 2 N c do O Ke2 m 6 7 8 9 36 12 Manual USB Analog Input Output Family Modules USB XXX16 YYYZ 16 Bit Input OEM no enclosures and Base Models board w enclosure included as standard option for OEM version Al Analog Inputs AIO Analog Inputs Outputs A Advanced Model 500k CALibration REFerence Real Time Cal HW constants stored on board update A D values in real time E Economy Model 250k CALibratio
12. AIMUX 64 DB37Femalex 2 5V via USB or Ext Supply USB Al12 64M__ 64SE 32 DIFF 250 YES NO 0_ A D AIMUX 64__ DB37 Female x 2 5V via USB or Ext Supply USB AM2 64ME 64SE 32DIFF 100 NO NO 0 AIMUX 64 DB37 Female x2 via USB or Ext Supply USB AM2 96A 96 DIFF 500 YES YES 0 AIMUX 32 x3 _ DB37 Female x 6_ 15V 5V via AIMUX 32_ USB AM2 96 96 DIFF 250 NO 0 AIMUX 32 x3 _ DB37 Female x 6_ 15V 5V via AIMUX 32_ USB Al12 96E__ 96 DIFF 100 NO NO AIMUX2 3 DB37 Female x 6_ 15V 5V via AIMUX 32 EN 0 0 L2 YYY cie gt gt PIN gt gt O m cic vj gt oo N gt N N O 4 raed oa fog gt gt gt gt _ _ wo A x USB AI12 128 128 DIFF 25 ES NO A D AIMUX 32 x DB37 Female x8 15V 5V via AIMUX 32 3 USB AM2 128A 128 DIFF A D AIMUX 32 x4 0837 Female x8 15V via AIMUX 32 4 USB Al12 128E 128 DIFF 1100 NO NO j 32 32 15V 5V via AIMUX 32 USB AIO12 16A 2 5V via USB or Ext Supply 250 YES NO 2 A D 68 Pin Male SCSI 5V via USB or Ext Supply USB Al012 16E_ 16SE 8DIFF 100 NO 2 AD___ 68 Pin Male SCSI 5V via USB or Ext Suppl USB AIO12 32A 15V 5V via AIMUX 32 USB AIO12 32 32 DIFF 250 YES NO 2 AIMUX32 DB37Femalex2 15V 5V via AIMUX 32 USB AIO12 32E 32 DIFF 100 NO NO
13. CH35 SE CH3 DIFF 5 CHA SE CH4H DIFF 24 CH36 SE CH4 DIFF DIFF CH6 SE CH6 DIFF CH38 SE CH6 DIFF 8 CH7 SE CH7 DIFF 27 CH39 SE CH7 DIFF 10 CH8 SE CH8 DIFF 29 CH9 DIFF 11 CHO SE CHOH DIFF 30 CH42 SE CH10 DIFF 12 CH10 SE CH10 DIFF 31 CH43 SE CH11 DIFP 13 CH11 SE CH11 DIFF 32 CH44 SE CH12 DIFF DIFF DIFF SE SE 6 CHE SE CHS DIFF 25 CH37 SE CH5 DIFF SE SE SE a omae V CHT2 DiFF 98 CHASSE CHISDIFE 15 CH13 SE CH13 DIFF 34 CH46 SE CH14 DIFF 16 CH14 SE His Dir 35 CHA7 SE CHIS DIFF o C LM335 term 18 AGND LMa36 teminal 37 AGND AN AIO aac 0 Table 8 1 AIMUX 64 J3 37 Pin Female Connector Pin Assignments 29 Manual USB Analog Input Output Family Modules Pin Signal Name Pin Signal Name 1 CH16 SE CH16 DIFF 20 CH48 SE CH16 DIFF 2 CH17 SE CH17 DIFF 21 49 5 CH17 DIFF 3 CH18 SE CH18 DIFF 22 CH50 SE CH18 DIFF 4 CH19 SE CH19 DIFF 23 CH51 SE CH19 DIFF 5 CH20 SE CH20 DIFF 24 CH52 SE CH20 DIFF 6 CH21 SE CH21 DIFF 25 CH53 SE CH21 DIFF 7 CH22 SE CH22 DIFF 26 CH54 SE CH22 DIFF 8 CH23 SE
14. example C68M 4 would have five 68 pin SCSI s Figure 9 1 C68M X Multi SCSI Cable Drawing Programming Differences from Base Model The API functions that return voltage are unable to determine the positions of the gain jumpers as set on the submultiplexer boards Please be aware that you would need to divide the floating point voltage returned from these functions by the gain factor x1 x2 x5 or x10 as selected for each channel s group on each AIMUX 32 It is not necessary to perform this step if you avoid the V family of API functions as all other functions return counts at either 12 bit or 16 bit resolution without regard to the selected gain and range options Options for Models that include the AIMUX 32 RC 110 50x RTDx BCx TCx BDx HG 0 RC filters be combined with any option or specified by itself x 1 32 differential inputs accepting 4 20mA x 2 64 differential inputs accepting 4 20mA x 3 96 differential inputs accepting 4 20mA x 4 128 differential inputs accepting 4 20mA x as above except inputs accept 10 50mA x as above except input accept RTDs x as above except inputs interface with quarter bridge configurations x as above except inputs accept thermocouples Option includes 2 ADAP37M screw terminal adaptors and an LM335 temperature sensor per each of 32 inputs X as above except providing thermocouple break detection for each multiple of 32 inputs configured
15. without condensation PC 104 format 3 550 by 3 775 and mounting holes 5V at 315mA typ USB 2 0 spec defines a device in terms of a unit load A unit load is defined to be 100mA Devices drawing an absolute maximum of one unit load are considered to be low powered and devices drawing an absolute maximum of five unit loads are considered to be high powered Because this spec is not strictly adhered to it is best to verify the USB port s power capabilities before operation This card according to the USB 2 0 spec is a high powered device An optional external power supply can be ordered if the USB port cannot support high powered devices If using more than a total of 500mA use optional 9 VDC on board voltage regulator outputs 5 VDC to card external power supply and remove VUSB jumper and place jumper on VEXT Then plug in external power before plugging into USB port This option will give you a total of 1000mA available NOTE External Power P OEM product versions ship without an enclosure and have the regulator removed to eliminate heat sinking concerns and to prevent breakage during shipment or handling Use only the provided 5V regulated external power supply that ships with this option to avoid damaging your instrument 25 Manual USB Analog Input Output Family Modules Chapter 8 Analog Input Multiplexer Model AIMUX 64 Features e Designed to pair with any of the USB AIO base series Multiplexes 64 single ended or 32 dif
16. 5V 15 oV 15 5 x15V 5V 7 sawsi SV via USB or Ext Supply 5V via USB or Ext Supply 5V via USB or Ext Supply 15 V 7 f5V 5 NO 2 15 5 15 oV 15 15 5 5V via USB or Ext Supply 5 via USB or Ext Supply 5V via USB or Ext Supply 15 5 15 oV 15 5 15 5 7 15 5 ees esses 14 Manual USB Analog Input Output Family Modules DPK XXX16 YYYZ 16 Bit Input DAQ PACK Models Enclosed and Integrated USB Data Acquisition Modules Al Analog Inputs AIO Analog Inputs Outputs YY 16 16S E 8DIFF Channels Y 64M 64S E 32DIFF Channels 32 64 96 128 32 64 96 128 DIFF Channels A Advanced Model 500k CALibration REFerence Real Time Cal HW constants stored on board update A D values in real time E Economy Model 250k CALibration REFerence Table 1 7 16 Bit DAQ PACK Model Number Structure 16 Bit DAQ n eal PACK Models fa REF reat 7 16 16 16SE 8 DIFF 500 YES YES 0 68 Male SCSI 5V via USB or Ext Supply DPK AI16 16E 165 8 DIFF 250 YES NO 0 68 Male SCSI 5V via USB or Ext Suppl DPK AI16 32A 32 DIFF 500 5 YES 0 DB37 Female x2 15V 5V Connector s Power Required 00 DPK Al6 32E 32 DIFF 1250 YES NO 0 DB37 Female x2 15V
17. CH23 DIFF 27 CH55 SE CH23 DIFF 9 AGND 28 CH56 SE CH24 DIFF 10 CH24 SE CH24 DIFF 29 CH57 SE CH25 DIFF 11 CH25 SE CH25 DIFF 30 CH58 SE CH26 DIFF 12 CH26 SE CH26 DIFF 31 59 5 27 13 CH27 SE CH27 DIFF 32 60 5 28 14 28 5 CH28 DIFF 33 CH61 SE CH29 DIFF 15 CH29 SE CH29 DIFF 34 62 5 CH30 DIFF 16 CH30 SE CH30 DIFF 35 CH63 SE CH31 DIFF 17 Ch31 SE Ch31 DIFF LM335 terminal 36 AGND 18 AGND LM335 terminal 37 AGND AI DAC1 AIO 19 AGND Table 8 2 AIMUX 64 J4 37 Pin Female Connector Pin Assignments 13 1 os Jo DB 25 Female 25 14 Figure 8 4 25 Pin Female Connector Pin Locations Pin SignalName Pin Siga Name foo a boi o hs piis s gt bo a Dos bois s bpo4 jop 4 6 bos 9 External Trigger 7 006 20 AD Conversion Start Enable 8 DI7 1 9 GND 2 CounterClock 19 008 23 Counter Output po 14 12 209 55 DOM Table 8 3 AIMUX 64 J2 DB25 Female Connector Pin Assignments 30 Manual USB Analog Input Output Family Modules Channel 0 thru Channel 31 single ended or Ch0 thru Ch31 SE Ch0 thru Ch31 DIFF Channel 0 thru Channel 31 diff
18. Functional Description This product is an A D board that converts analog voltages or optionally 4 20 10 50mA to a 16 or 12 bit value depending on model This board is capable of sampling speeds up to 500k 250k or 100k samples per second depending on model Sampling of the A D can be enabled disabled using an externally supplied input signal Analog input channels are enabled as a consecutive set by software Each channel within the set is independently configured by software to accept one of eight different analog input ranges A D conversion starts are issued one of three ways Software Start Timer Start or External Trigger Start A D conversion starts are software configured to be either rising or falling edge Additionally A D conversion starts are software configured to be Single Channel or Scan Single Channel samples data once from the next consecutive channel within the enabled set A Scan samples data from all channels within the set at the fastest possible rate To minimize noise the board implements a technique called Oversampling High accuracy is achieved with two on board reference voltages used in calibrating the board does not apply to 12 xxE models Furthermore a real time internal calibration system A models only allows the card to adjust for offset gain errors at run time giving a more accurate reading 7 Manual USB Analog Input Output Family Modules This board also has an option of adding two 16 bit D A output
19. The exact value of Vref is measured at the factory with an accurate voltmeter and the value is stored on board which is used for the expected Vref value Once both references have been measured and the resulting values substituted into the equations earlier in this section software can begin sampling channels Software then performs some post processing by applying the equations to the sampled data and the result is accurate calibrated data Lastly the A model boards contain hardware that will provide real time calibrated data This hardware requires a file to be created by software with the offset and gain factor values The file is then loaded onto the board and used by hardware to give real time calibrated data User defined offset and gain factors can be used for custom calibration needs Refer to the Software Reference manual for the file format Autocalibration is a function in software that when called will automatically sample the two on board references create the calibration file and store the calibrated information onto the board Autocalibration can be performed in milliseconds and is recommended to be performed periodically For optimum calibrated data the software function should be repeated anytime the temperature or environment changes 48 Manual USB Analog Input Output Family Modules System Calibration Utility This is a program provided to manually calibrate out offset gain and other errors for the entire system periodic
20. female SCSI Pin in Socket type connector with one touch lock latches Detailed pin assignments are listed in chapter 6 as well as a reference of pin functions printed on the enclosure label 19 Manual USB Analog Input Output Family Modules Chapter 4 USB Address Information Use the provided driver to access the USB board This driver will allow you to determine how many supported USB devices are currently installed and each device s type This information is returned as a Vendor ID VID Product ID PID and Device Index The board s VID is 0x1605 and the PID for each model is listed below For DAQ PACK models substitute DPK for USB 8044 8045 8046 8047 8048 8049 804A 804B 804C 804D 804E 804F 8050 8051 8052 8053 8054 8055 8056 8057 8058 8059 8143 8144 8145 8146 8147 8148 8149 814A 814B 814C 814D 814E 814F 8150 8151 8152 8153 8154 8155 8156 8157 8158 8159 815A 815B 815C USB AIO12 128 Table 4 1 Product ID to Model Number The Device Index is determined by how many of the device you have in your system and can provide a unique identifier allowing you to access a specific board at will See the Software Reference Manual installed on your system along with the board support package for more information 20 Manual USB Analog Input Output Family Modules Chapter 5 Programming The driver software provided with the board uses a 32 bit dll front end compatible with any W
21. for the other half If the count is even then the output is a symmetrical square wave If the count is odd then the output is high for N 1 2 counts and low for N 1 2 counts Periodic triggering or frequency synthesis are two possible applications for this mode Note that in this mode to achieve the square wave the counter decrements by two for the total loaded count then reloads and decrements by two for the second part of the wave form Mode 4 Software Triggered Strobe This mode sets the output high and when the count is loaded the counter begins to count down When the counter reaches zero the output will go low for one input period The counter must be reloaded to repeat the cycle A low gate input will inhibit the counter Mode 5 Hardware Triggered Strobe In this mode the counter will start counting after the rising edge of the trigger input and will go low for one clock period when the terminal count is reached The counter is retriggerable The output will not go low until the full count after the rising edge of the trigger 46 Manual USB Analog Input Output Family Modules Appendix B Calibration An inherent property of any ADC based system is they all contain offset gain and others errors Sources of these errors are multiplexers amplifiers ADC s resistors etc These errors lead to inaccurate A D data which is undesirable The two most common error types is offset and gain Positive Offset Errors are illustrated in
22. must note however that a differential signal requires a pair of single ended channels Thus when channel 0 is programmed as a differential input both channels 0 and 32 Ch0 DIFF and 0 DIFF respectively are used and not available as singled ended inputs Also because all four channels within a group contain the same configuration channels 1 and 33 Ch1 DIFF and Ch1 DIFF respectively 2 and 34 Ch2 DIFF and Ch2 DIFF respectively and 3 and 35 Ch3 DIFF and Ch3 DIFF respectively would also be configured as differential channels Refer to this chapter in Table 8 1 and 8 2 for single ended and differential pair inputs When connecting thermocouple inputs to this board a temperature sensor is needed for Cold Junction Compensation CJC Channels 15 and 31 can accept a two wire temperature sensor LM335 to provide the CJC for the thermocouple The AIMUX 64 connects to the USB AIO board through a 68 pin SCSI ribbon cable The mating connector used on the ribbon cables are AMP P N 786090 7 or MOLEX P N 70498 5068 or equivalent Analog differential inputs are accessed via two right angle DB 37 female connectors There is a right angle DB 25 female connector for the DIO and control signals All other sections remain the same as described in the USB AIO portion of this manual Programming Differences from Base Model No other changes should be necessary when using the AIMUX 64 26 Manual USB Analog Input Output Family Modules CO
23. the 27 graph from the left in Figure 9 14 assume a 16 bit ADC Ideally applying zero scale to the input would yield a code of 0x0000 Any deviation from a 0x0000 code when applying zero scale to the input is the offset error GAIN ERROR 7 OFFSET 7 GAIN OFFSET u u l ERROR u ERROR a ERROR p a U u lt 2 2 E E our 7 OFFSET 7 V4 s r yy M n ERROR y S Z e 7 Sr es y v A 7 7 o o g lt o LS o Z lt S zg U 2 P4 4 4 S as gt F 774 38 gt 4 zT de i 71 E i x 7 i I amp 9 7 4 pm i 4 77 1 KO 4 if 1 p I I P 7 A OFFSET OFFSET JU 4 ERROR ERROR i 4 gt 1 D 4 4 4 D 5 Half Scale Full Scale 0 Half Scale Full Scale 0 Half Scale Full Scale 0 Half Scale Full Scale ERROR VOLTS VOLTS VOLTS VOLTS a b c d Figure 9 14 Offset and Gain Error Graphs Gain errors are illustrated in graph b in Figure 9 14 The ideal slope for an ADC is a straight line passing through each point of a voltage and its associated code starting at zero scale and ending at full scale Any deviation from a OxFFFF code when applying full scale to the input yields a slope different than the ideal slope The dif
24. to 5V Readings below 1V provide fault detection i e for a blown circuit fuse CH CURRENT SOURCE cu 4 20mA OPTIONAL ANALOG GROUND Figure 9 5 Current Input Diagram Bridge Completion Configuration Three resistors are installed to form three arms of a full Wheatstone bridge The resistor values are specified by the customer CH BRIDGE SENSOR x ANALOG GROUND BRIDGE COMPLETION Figure 9 6 Bridge Completion Diagram 35 Manual USB Analog Input Output Family Modules Thermocouple Measurement with reference junction temperature sensor and optional Break Detect This option measures thermocouple inputs while also providing the temperature of the terminal block cold junction using a temperature sensor connected to channel 8 The optional break detect resistors can be installed to detect an open thermocouple condition 10V on the input CH 10V T COUPLE COUPEE Peg w BREAK DETECT OPTIONAL rid ANALOG GROUND Figure 9 7 Thermocouple Input Diagram Adding CJC when using thermocouples with the AIMUX 32 Connect the temperature sensor to J3 pin 28 for the lead of LM335 and to pin 29 for lead of LM335 This be accomplished using the screw terminal adaptor ADAP37M or by soldering the temp sensor to the pins of the mating connector in your cabling For background information regarding the need for a reference junction sensor please refer to the section Adding CJC when using thermocouples with
25. xx models The software operation of the USB AI O family when combined with the AIMUX xx remains nearly identical Several small things do change however 1 ADC_SetScanLimits can accept channel numbers up to 128 for both the start and end channel 2 If you choose to set your scan limits directly via the SetConfig API the array of configuration values has one extra byte This byte contains the extra channel select bits for the start and end channel Simply stated the high nybble of the channel numbers are stored in the extra byte array index 0x20 The high nybble can be calculated by dividing the channel number by 16 and dropping any fractions In the same fashion as the normal start and end channel control index the end channel bits go in the top nybble and the start channel bits go in the low nybble 3 The data returned from any API including both ADC_BulkAcquire and ADC_GetScanV just to name two will consist of the data sequentially between the start channel and end channel as specified in 1 or 2 above 21 Manual USB Analog Input Output Family Modules Chapter 6 Connector Pin Assignments The base model uses a 68 pin Type 2 SCSI female with quick release one touch locking latches The connector on the board is a TE Receptacle Assembly Shielded Right Angle Railed 050 Series Amplimite Part Number 1761028 4 or equivalent 68 35 Figure 6 1 68 Pin SCSI Connector Pin Locations summe Tm
26. 0 10V 5V 10V factory installed 16 High current Digital I O lines 16 bit programmable counter timer PC 104 module size and mounting compatibility Small 4 x 4 x 1 25 rugged industrial enclosure available for 16 input version models Onboard micro USB connector for embedded applications Applications Equipment monitoring e Environmental measurements e Embedded data acquisition e Education Laboratory Product Family Overview The base models within the product family consist of a USB based A D converter board with 16 single ended S E or 8 differential DIFF analog inputs a counter timer and 16 high current digital I O lines The family is designed using a modular approach with a variety of bit resolutions amp sampling speeds Optionally two 16 bit D A outputs are factory installed for those applications requiring analog outputs To increase the channel count of the base models from 16 S E or 8 DIFF to 64 S E or 32 DIFF a multiplexer board AIMUX 64 is connected to the 68 pin SCSI connector of the A D board with a ribbon cable Alternately to increase the channel count introduce signal conditioning capabilities and extra input gain options from one to four signal conditioning multiplexer boards AIMUX 32 can be connected to the A D board with a multi SCSI ribbon cable for a maximum of 128 differential analog inputs To find the model that is right for your application refer to product tables 1 1 through 1 8
27. 10V Environmental Operating Temperature 0 to 70 C optional 40 to 85 C Storage Temperature 40 to 105 C Humidity 5 to 90 RH without condensation Board Dimensions PC 104 format 3 550 by 3 775 and mounting holes Power required 5V at 315mA typ 15V at 39mA typ 15V at 21mA typ 44 Manual USB Analog Input Output Family Modules Appendix A Counter Timer This board contains a 82C54 16 bit counter timer It can be programmed to any count as low as 1 or 2 and up to 65 536 depending on the mode chosen For those interested in more detailed information a full description can be found in the Intel or equivalent manufacturer s data sheet provided in the chipdocs directory on the Software Master CD In addition the driver and firmware on the board requires a full 16 bit load operation do not select low byte only or high byte only modes for the counters Additional low level information on the 82C54 can be found on the Software Master CD in the chipdocs directory Operational Modes The 8254 modes of operation are described in the following paragraphs to familiarize you with the versatility and power of this device For those interested in m ore detailed information a full description of the 8254 programmable interval timer can be found in the Intel or equivalent manufacturers data sheets The following conventions apply for use in describing operation of the 8254 Clock A positive pulse into
28. 12 16SE 8 DIFF 250 YES NO 0 68 Male SCSI 5 via USB or Ext Supply 16SE 8DIFF 100 NO NO 0 68 Male SCSI 5V via USB or Ext Supply z 5 YES 0 DB37Femalex2 15V 5V Al12 50 YES NO 0 DB37Femalex2 15V 5V DPK Al12 32E 00 NO NO 0 DB37Femalex2 15V 5V 00 5 5 0 DB37Femalex4 1 YES NO 0 DB37Femalex4 15V 5V DPK Al12 64E NO NO 0 DB37Femalex4 15V 5V DPK AH2 64MA 00 YES YES 0 DB37 Femalex2 5V via USB or Ext Supply DPK Al12 64M 50 YES NO 0 DB37 Female x2_ 5V via USB or Ext Supply DPK Al12 64ME 100 NO NO 0 DB37 Female x2 5 via USB or Ext Supply DPK Al12 96A 5 YES 0 0837 Female x6_ 15V 5V DPK AH2 96 YES NO 0 0837 Femalex6 15V 5V 0 0 E 0 2 lt gt lt lt gt lt lt 1 2 3 4 5 oo d A X gt gt PIN gt g g A gt o m ojo E glo ojojlo 70 79 U U A A 2 io no no ro ro 9 AJA NIN gt gt 7 B ojo lt 22 o z 0 m O ojo O lt O n z 2 3 4 5 6 7 8 9 lt lt nln 2 lt 2 DPK Al12 96E NO NO 15V 5V DPK Al12 128A 15V 5V DPK Al12 128 YES NO 15V 45V DPK Al12 128E NO NO 15V 5V DPK AIO12 16A 0 2 5V via USB or Ext Suppl 250 YES NO 2 68 Pin Male SCSI 5V via USB or Ext Suppl
29. 5 00 NO NO 2 68 Male SCSI 5V via USB or Ext Supply DPK AIO12 32A YES 5 2 DB37Femalex2 15V 5V DPK AIO12 32 ES NO 2 DB37 Female x2 15V 5V DPK AIO12 32E NO NO 2 DB37 Female x2 15V 5V DPK AIO12 64A YES YES 2 DB37Femalex4 15V 5V DPK AIO12 64 ES NO 2 DB37 Femalex4 15V 5V DPK AIO12 64E NO NO 2 0837 Femalex4 15V 5V DPK AIO12 64MA 00 5 YES 2 DB37 Female x2 via USB or Ext Supply DPK AIO12 64M 250 YES NO 2 DB37 Female x2 5V via USB or Ext Supply DPK AIO12 64ME 00 NO NO 2 DB37 Female 2 via USB or Ext Suppl 15V 5V DPK AIO12 96 250 YES 15V 5V DPK AIO12 96E NO NO 2 0837 Femalex6 15V 5V DPK AIO12 128A 500 15V 5V 250 15V 5V DPK AIO12 128E 128 DIFF 100 NO 2 0837 8 15 Table 1 6 12 Bit DAQ PACK Model Product Selector ejojoljojoiuJ jo lt lt o 9 o o XIzizis amp iz MOONS gt 9 o o 2 ojo lt 22 lt O 2 3 4 5 lt 42 z N ojo ojo lt lt N e lt O zZ O 7 8 Bs o lt gt oio N IN 99 2 2 OJO BB e ojo lt lt U U U U U U A gt gt gt 9 9 9 N N N E To E N o o gt m 2 3 4 5 e lt Z z 5V via USB or Ext Supply f5V 5 x15V
30. NTROL and DIGITAL yo J2 DB25 FEMALE J4 DB37 FEMALE CHANNELS 16 31 48 63 Figure 8 1 AIMUX 64 Board with Connectors Exclusive Option for Models that include the AIMUX 64 e MTC Multiplexer Temperature Configuration includes an LM335 precision temperature sensor with a 10k ohm resistor on one input channel to provide bias for the sensor Also includes two universal screw terminal adaptors model ADAP 37 Included with your board Versions of this product that contain the AIMUX 64 ship installed in an enclosure unless specified as OEM which is the board set only version Optional Accessories for Models that include the AIMUX 64 ADAP37M Screw Terminal Adapter with female DB37 connector 2 needed ADAP25M Screw Terminal Adapter with female DB25 connector Ribbon Cable assemblies Crimp Kit DB37 male crimp kit DIN SNAP One foot length SNAP TRACK with four clips 27 Manual USB Analog Input Output Family Modules Adding CJC when using thermocouples with the USB AIO family For thermocouple inputs a temperature sensor is needed for Cold Junction Compensation CJC The cold junction is the two points where the thermocouple wires attach to the connector Each of these two points connect two dissimilar metals which from the thermoelectric effect cause a voltage potential adds to thermocouple voltage and is therefore unwanted This potential is compensated for by measuring the temperature at the terminal block using the installed tem
31. Timet neare indem tero na rere ER IE SERRA oer Nc 11 Ordering G de EI 12 Chapter 2 Installation DL E 17 Software CD lt 17 Hardware Installation rr i te ce I ERR EE e e SEE aeq ce a ER Gee E REA tones Cea ae 17 Chapter 3 Hardware Details eee eiiis sisse 18 Option S electiOon a guna sets n a ama aa Suatu kiasa aaa tapa assia IE 18 Chapter 4 USB Address Information J 20 Chapter 5 Programming jWVR 21 Chapter 6 Connector Pin Assignments U U u u u u u u u 22 Chapter 7 Base Model Specifications J U U U uu u uuu u u u 24 Chapter 8 Analog Input Multiplexer Model AIMUX 64 u 26 i icr mmc 26 Functional Description oesie esserci egent eue eria ae de dene eger ge aee a den aa 26 Programming Differences from Base Model sse nnnm 26 Exclusive Option for Models that include the AIMUX 64 4 2 1 1 2 27 Included with your board 27 Optional Accessories for Models that include the AIMUX 64
32. a vs the expected data is expressed by the equation y mx b where y gt calibrated value m gt gain factor gt measured value b gt offset factor m and b are found by sampling a reference slightly above zero scale and a reference slightly below full scale The reason for not using a reference equal to zero scale is to avoid any negative offset error that might be present as described above The concept is similar for using a reference not equal to full scale A gain error could cause a reference equal to full scale to be amplified above a voltage of full scale This gain error would not be detected as the data would report a code of OxFFFF any value above full scale reports this code Therefore choosing a reference that is guaranteed to be slightly below full scale is necessary This card s first on board reference is analog ground which is used as the near zero scale reference The small positive bias voltage mentioned above guarantees that the resulting data will read slightly above zero scale This value is the offset factor and becomes the new calibrated Zero It s represented in the equation above as b negative value measured for analog ground The second on board reference Vref is used as the near full scale reference Vref is a value guaranteed to be slightly below full scale The resulting data from sampling Vref is used to calculate mas m expected Vref measured Vref measured analog ground value
33. al power supply Embedded USB Connector P4 In applications where the OEM board only no enclosure version of this board is used it may be desirable to use the on board micro USB connector which is next to the Type B connector LED The LED on the front of the enclosure is used to indicate power and data transmissions When the LED is in an illuminated steady green state this signifies that the board is successfully connected to the computer and has been detected and configured by the operating system When the LED flashes continuously this signifies that there is data being transmitted over the USB bus DC Power Jack Optional Please note not all boards will contain this option This is an option for applications sourcing in excess of 150mA for the DIO each DIO line is capable of sourcing up to 32mA The DC jack has a 2 00mm post on board and is designed to be used with the 9 VDC AC DC external power supply that ships with this option The voltage regulator on board regulates the 9 VDC and provides 5 VDC to the onboard circuitry When using external power switch the jumper located near the USB connector to VEXT otherwise when the jumper is in the VUSB position current is drawn from the USB port please consult the option selection map for a visual reference OEM product versions require a 5 VDC external power supply instead of 9 VDC which is provided with your shipment 68 Pin I O Connector J1 The I O is accessed via 68 pin
34. al sample plus 0 oversamples oversample of 1 will sample a channel twice initial sample plus 1 oversample up to an oversample of 255 which will sample a channel 256 times initial sample plus 255 oversamples Each channel s oversamples are taken before sampling begins on the next consecutive channel within the enabled set Calibration All ADC s suffer from offset and gain errors To account for this the board contains calibration hardware and software to adjust for the offset gain errors This is particularly helpful as aging occurs and or operating temperature changes There are two on board hardware components used for calibration The first hardware component uses two on board known reference voltages that are accessible by software The first reference voltage measures analog ground while the second reference voltage measures Vref which is slightly below 10V The results of sampling analog ground provides the information for correcting any offset errors present Sampling Vref provides the information for correcting any gain errors present by comparing against Vref s known value which was accurately measured at the factory and stored on board Note 12 xxE boards do not contain the on board reference voltages The second hardware component contained by A models only provides real time calibrated data This component uses the calibration file created from the two on board reference voltages or a custom calibration file generated by t
35. alibrate to their own standard Analog Outputs Number of Outputs 2 Type of Outputs Single ended Resolution 16 bit Unipolar Ranges Bipolar Ranges Conversion Rate Settling Time Output Current 0 10V Standard 0 5V factory installed 5V 10V factory installed 4kHz per channel 4us typ 7us max 1 4 to 3 4 scale to 2LSBs 25mA per channel 24 Manual USB Analog Input Output Family Modules Digital I O Lines Input voltage Input current Output voltage Output current Counter Timer Type Available Counters Input Frequency Counter size Clock Clock Period Clock Pulse Width High Clock Pulse Width Low Gate Output Input Output Voltage Current Environmental Operating Temperature Storage Temperature Humidity Board Dimensions Power Required 16 programmable as inputs or outputs in groups of 8 pulled up Logic low OV min to 0 8V max Logic high 2V min to 5V max 20 max Logic low OV min to 0 55V max Logic high 2V min to 5V max Logic low 64mA max sink Logic high 32mA max source 82C54 programmable interval counter Counter 0 CTR1 and CTR2 dedicated to A D conversion starts 10MHz max 16 bit Internal 10MHz or Externally supplied software selectable pulled up 100ns min 30ns min 40ns min Externally supplied pulled up active high External pulled up Same as Digital I O 0 to 70 C optional 40 to 85 C 40 to 105 C 5 to 90 RH
36. ally The system includes the USB AIO board and such devices as sensors signal conditioners etc These components contribute to errors in the system which lead to erroneous data The System Calibration Utility corrects the errors for all the components in the system and provides accurate calibrated data Following is a series of screenshots intended to provide an overview of what is involved in performing system calibration using this utility System Calibration Utility This utility will 1 Perform an autocalibration of the board 2 Allow you to specify what SHOULD be seen in comparison to what S seen for both near Zero offset and near Full Scale Gain errors 3 Create a new Calibration file that will CAUSE the hardware to return what you ve specified instead of what the autocal decided to show By performing these steps you can calibrate MORE than just the board you calibrate the sensors the screw terminal accessories etc i Cancel and Exit Figure 9 15 System Calibration Utility Screenshot 1 setup System Calibration Utility aln x Single Ended If there is a specific range gain setting you would like to optimize your calibration for select it here Be aware the high precision gain amplifier used in this product should show little variation in calibration between ranges and the default range is therefore entirely suitable for most situations Previous n
37. b The CD should automatically run the install program If the install program does not run click START RUN and type click OK or press E C Follow the on screen prompts to install the software for this board LINUX a Please refer to linux htm on the CD ROM for information on installing under linux Hardware Installation Please install the software package before plugging the hardware into the system The board can be installed in any USB 2 0 port Please refer to the USB I O Quick Start Guide which can be found on the CD for specific quick steps to complete the hardware and software installation 17 Manual USB Analog Input Output Family Modules Chapter 3 Hardware Details Option Selection You may also refer to the setup program installed from the CD provided with the board The only user selectable hardware option available is VUSB vs VEXT which selects between USB powered or Externally powered Table 3 1 Base Model Option Selection Map 18 Manual USB Analog Input Output Family Modules USB Connector P1 The USB connector available via the outside of the enclosure OEM product versions do not include enclosures is a Type B and mates with the six foot cable provided The USB port provides communication signals along with 5 VDC power The board can be powered from the USB port or an external power supply can be used See the DC Power Jack description below for more details about using an extern
38. ce A D Conversion Start Enable returns high conversions will begin on the next successive channel within the enabled set upon the following A D Conversion Start An A D Conversion Start can be one of two software selectable types for this board Single Channel or Scan A D conversion starts that are Single Channel sample one channel within the enabled set per A D Conversion Start This allows for total control over the time skew between channels Scan on the other hand will sample all the channels within the enabled set per A D Conversion Start Channels are sampled at 500kHz 250kHz or 100kHz depending on model to minimize the time skew between channels Furthermore A Models have the software selectable Scan option of sampling channels at 500kHz or 400kHz The slower sampling rate mitigates crosstalk between analog input channels 9 Manual USB Analog Input Output Family Modules Oversample Oversampling is a technique which continuously samples a channel multiple times at the board s fastest speed Quickly taking several samples from the same channel allows the signal to be averaged Averaging a signal can greatly reduce the noise injected by both the signal and the board system The oversample range is from 0 to 255 software selectable and applies to every channel within the enabled set A channel is always sampled once plus the number of oversamples that was configured Therefore an oversample of 0 will sample a channel once initi
39. ement Bridge completion Thermocouple w break detect Temp sensor for cold junction Voltage divider 10V sensor excitation 0000000 Functional Description This board is an analog signal conditioner multiplexer designed for use with the USB AIO base series of boards There are 32 differential analog inputs that are multiplexed down to 4 single ended outputs using 8 1 multiplexers MUX These outputs become the inputs to the USB AIO board The inputs to the standard AIMUX 32 can be voltages or optionally 4 20mA 10 50mA current inputs There are 10 additional input ranges with this board They are 0 100mV 0 200mV 0 400mV 0 500 0 2 5V 100mV 200mV 400mV 500mV and 2 5V A high gain option adds ranges of 0 1mV 0 5mV 0 10mV 0 20mV 0 50mV 1mV 5mV 10mV 20mV and 50mV Furthermore an optional voltage divider input can be factory installed for custom input ranges up to 30V Analog inputs for the AIMUX 32 are configured and controlled by a combination of software and the gain jumpers Up to four boards 128 differential inputs can be used with each USB AIO board These multi board models are factory configured integrated and tested and are not intended to be configured or expanded in the field Inherently from the 8 1 MUX used channels are grouped in 8 s The first group would consist of channels 0 1 2 3 4 5 6 7 the next group consisting of channels 8 9 10 11 12 13 14 15 etc Therefore the software jumper configuration f
40. erential non inverting input Channel 32 thru Channel 63 single ended or Channel 0 thru Channel 31 differential inverting input Temperature sensor lead for reference junction or cold junction compensation When this option is ordered Channel 1 is factory configured to provide a bias to a provided LM335 Ch32 thru Che3 SE ChO thru Ch31 DIFF LM335 terminal precision temperature sensor which should be connected to the also provided screw terminal adapter model UTBK 50 When this option is ordered connect the lead of the provided LM335 precision temperature sensor to the also provided screw terminal adapter model UTBK 50 Digital to Analog outputs Analog Ground All single ended AND differential signals must have a ground reference connected on one of these pins LM335 terminal DACO amp DAC1 AGND X Q 2 Digital Ground Reference all digital signal devices to of these connector pins Digital I O bits 8 through 15 software configured as either inputs or outputs BIOs through DIOTS pulled up to 5V through 10k ohms Digital I O bits 0 through 7 software configured as either inputs or outputs Bide through DIO7 pulled up to 5V through 10k ohms Counter Output En Output from 8254 CTR TMR pulled up Counter Clock 8254 counter timer clock input pulled up Counter Gate 8254 counter timer gate input pulled up active high A D Conversion Start Enable ES Enable Analog to Digital conversion starts
41. ferences in these slopes is the gain error Graph d in Figure 9 14 shows how the combination of offset and gain errors can cause the actual transfer characteristic to deviate a fair amount from the ideal transfer characteristic To account for these errors the board includes hardware that can be used to calibrate the data and give a more accurate reading The first thing the hardware does is remove any negative offset error the board might have Negative offset shown in graph a in Figure 9 14 prevents the ability to measure a zero scale input This means a 0x0000 code will be read until the input voltage exceeds the negative offset Hardware on this board injects a small positive bias voltage that ensures the removal of any negative offset 12 xxE do not include this hardware Next the board s hardware includes two on board reference voltages Note 12 xxE boards do not contain the on board reference voltages that can be sampled by software and used to calibrate out the offset and gain errors The theory behind using two reference voltages to calibrate out offset and gain errors is the following 47 Manual USB Analog Input Output Family Modules In an ideal ADC based system the input voltage to the ADC x would be equal to the value read y after sampling So y X However the offset and gain error graphs in Figure 9 14 illustrate that actual data does not equal the expected ideal data The difference in the actual dat
42. ferential analog inputs into the 05 base board Optional Cold Junction Sensor for thermocouple measurement applications Optionally includes two 37 pin screw terminal board accessories External A D and Counter control lines accessible from USB AIO board Paired with base A D board as OEM no enclosure or as DAQ PACK M Series Data Acquisition Module Functional Description This board is an analog input multiplexer that mates with the USB AIO base model series There are a total of 64 single ended or 32 differential analog inputs that are multiplexed down to 16 single ended or 8 differential outputs using 4 1 multiplexers MUX These outputs become the inputs to the USB AIO board and are configured by software Channel input ranges are the same as the USB AlO board These multi board models are factory configured integrated and tested and are not intended to be configured or expanded in the field Inherently from the 4 1 MUX used channels are grouped in 4 s The first group would consist of channels 0 1 2 3 the next group consisting of channels 4 5 6 7 etc Therefore the software configuration for the USB AIO board channel 0 will apply to AIMUX 64 channels 0 1 2 3 USB AlO board channel 1 will apply to AIMUX 64 channels 4 5 6 7 etc Each group of 4 channels within the enabled set is individually software configured as either single ended or differential This board allows a mix of both single ended and differential inputs One
43. g or issuing credit at ACCES discretion for any products which are proved to be defective during the warranty period In no case is ACCES liable for consequential or special damage arriving from use or misuse of our product The customer is responsible for all charges caused by modifications or additions to ACCES equipment not approved in writing by ACCES or if in ACCES opinion the equipment has been subjected to abnormal use Abnormal use for purposes of this warranty is defined as any use to which the equipment is exposed other than that use specified or intended as evidenced by purchase or sales representation Other than the above no other warranty expressed or implied shall apply to any and all such equipment furnished or sold by ACCES 3 Manual USB Analog Input Output Family Modules TABLE OF CONTENTS Chapter 1 I trod cti uy u u ete 6 PO atures iri eS giten eee eee ene ete 6 Product Family Overview 1 0 000000 eecaaeeeeaeeseeeeesaeeseaaesseeeeseeessaeeseeeseenee 7 Functional Description icone peti fe ect ete ed et eee 7 Durand eem 8 A D Conversion Start ince pete t ate es tage rue pte esed yu a peeve teal 9 e Jc npj ER 10 e DI PME 10 A alog O tputes u e Tm 10 Digital VO u 11 Counter
44. he user refer to the Software Reference manual for the file format The calibration file is loaded onto the board and used by the real time calibration hardware The result is real time calibrated data Autocalibration is a function in software that when called will automatically sample the two on board references create the calibration file and store the calibrated information onto the board Autocalibration can be performed in milliseconds and is recommended to be performed periodically For optimum calibrated data the software function should be repeated anytime the temperature or environment changes Appendix B describes calibration in greater detail It gives thorough explanations and provides useful diagrams demonstrating the concepts of offset and gain errors as well as other common sources of error It also provides equations used to calibrate out errors and how those equations were derived Analog Outputs Optional analog outputs provide two singled ended 16 bit D A outputs capable of a 4KHz conversion rate per channel Both channels ship standard with a 0 10V range Other ranges available as factory options 0 5V 5V and 10V See Model Options for details on specifying the factory ranges Output current is 25mA per channel 10 Manual USB Analog Input Output Family Modules Digital I O There are 16 digital I O lines DIOO to DIO15 available on the I O connector Both the low byte 0100 0107 and high byte DIO8 DIO15 ca
45. in Signal Name 1 sv 2 s 3 aGND AGND s fv 6 o 7 jav Table 9 3 AIMUX 32 P2 Power Connector IDC 8 V _ Power Supply Input 15VSS 5V 1 Power Supply Input 5VDC 15V Power Supply Input 15 00 Table 9 4 AIMUX 32 2 Signal Names and Descriptions 19 1 o Gases Je DB 37 Female 37 20 Figure 9 12 DB37 Connector Pin Locations Table 9 5 Norm J3 EDS Pin Assignments DB37F suse Toe suse hee fe foo hee qe fon Ree fe foe fos m ee j foe B oe s fos pee fe ee s e fe pes Dee See mee fe foo fa fone fa om j Pa for fe ee ee fe ee e fe ee pe one fone fe ew m return AGND 40 Manual USB Analog Input Output Family Modules CHO to CH15 Channel 0 through 15 differential non inverting input CHO to CH15 Channel 0 through 15 differential inverting input AGND Ground All single ended AND differential signals must a ground reference connected on one of these pins TEMP LM335 Temperature sensor input circuit LM335 lead when TEMP1 jumper is installed 1 Connected to channel 8 aras non UR LM input por o Digital to 00000000 to Analog Output 1 ie DAC1 s ground when installed Otherwise Analog Ground Table 9 6 AIMUX 32 J3 Signal Names and Descriptions
46. indows programming language Samples provided in Borland C Builder Borland Delphi Microsoft Visual Basic and Microsoft Visual C demonstrate use of the driver Many functions are provided by the driver in Windows These functions will allow you to read or write to the board In addition counter timer functionality and board level functions complete the driver package For detailed information on each function refer to the html Driver Manual located in the Win32 directory for this board unsigned long ADC GetScanV This simple function takes one scan of A D data and converts it to voltage It also averages oversamples for each channel The array must contain one entry per A D channel on the board though only entries start channel through end channel are altered unsigned long Devicelndex number from 0 31 indicating from which device you wish to get a scan of data double pBuf a pointer to the first of an array of double precision IEEE floating point numbers which will each receive the value read from one channel unsigned long ADC SetConfig unsigned long Devicelndex number from 0 31 indicating to which device you wish to set the A D configuration unsigned char pConfigBuf a pointer to the first of an array of configuration bytes unsigned long ConfigBufSize a pointer to a variable holding the number of configuration bytes to write Will be set to the number of configuration bytes written Software for AIMUX
47. ions which can be any combination of differential or single ended 4 20mA or 10 50mA inputs please contact the factory at 800 326 1649 For options specific to models including AIMUX 64 or AIMUX 32 boards refer to Chapter 8 and 9 respectively 15 Manual USB Analog Input Output Family Modules Included with your board The following components are included with your shipment depending on model and options ordered Please take time now to ensure that no items are damaged or missing e USB AIO Family Module installed in an enclosure with an anti skid bottom 6 USB cable e Software Master CD PDF user manual installed with product package e Printed USB I O Quick Start Guide Optional accessories e CUSB EMB 6 6 USB Cable type A to micro USB connector For use with OEM versions e C68PS18L 68 Pin SCSI 18 shielded cable with one touch latches e STB 68 Screw Terminal Board mounted on standoffs e STB 68 Kit Screw Terminal Board with enclosure mounting and interconnecting ribbon cable 16 Manual USB Analog Input Output Family Modules Chapter 2 Installation Software CD Installation The software provided with this board is contained on one CD and must be installed onto your hard disk prior to use To do this perform the following steps as appropriate for your operating system Substitute the appropriate drive letter for your drive where you see D in the examples below WIN2000 XP 2003 a Place the CD into your CD ROM drive
48. m Cancel and Exit Figure 9 16 System Calibration Utility Screenshot 2 range select 49 Manual USB Analog Input Output Family Modules System Calibration Utility xj OFFSET Apply a value to your sensor which should result in a near minimum scale 70 25 volt reading on Channel 0 Input The two values may not match This is normal and is how we will calculate a file that will cause the data to match programmatically Type the Expected Value in Volts you are applying 0 0 Volts This field shows the Current Reading from Channel 0 0 1 9012 Volts Once you ve finished creating and uploading the new calibration data we ll run a simple check to make sure you THEN see the correct data displayed Click Next when you re comfortable with the data shown Previous Figure 9 17 System Calibration Utility Screenshot 3 offset System Calibration Utility 101 xl GAIN Apply a value to your sensor which should result a near full scale 79 75 volt reading on Channel 0 Input The two values may not match This is normal and is how we will calculate a file that will cause the data to match programmatically Type the Expected Value in Volts you are applying 3 85 Volts This field shows the Current Reading from Channel 0 9 71207 Volts Once you ve finished creating and uploading the new calibration data we ll run a simple check to make sure
49. mber of channels Unipolar ranges Bipolar ranges 4 20mA or 10 50mA Calibration Hardware 16 16A version 16 16E version 12 16 version 12 16 version 12 16E version System Calibration Accuracy Uncalibrated Calibrated Integral Nonlinearity Error No Missing Codes Input impedance Successive approximation 16 bit 12 bit 500k samples sec maximum aggregate 250k samples sec maximum aggregate 500k samples sec maximum aggregate 250k samples sec maximum aggregate 100k samples sec maximum aggregate 16 single ended or 8 differential software selectable 0 1V 0 2V 0 5V 0 10V software selectable 1V 2V 5V 10V software selectable Factory installed optional Two on board references calibrated real time output Two on board references Two on board references calibrated real time output Two on board references None Program provided to calibrate entire system 0 094 Full Scale FS 0 0015 FS 0 0046 FS 15 bits 1 A D Conv Start Sources Software Start Timer Start and External Start Trigger rising or falling edge software selectable A D Conversion Start Enable Externally supplied pulled up active high A D Conversion Start Types Single Channel or Scan software selectable Channel Oversampling 0 255 consecutive samples channel software selectable Overvoltage protection 40 to 55V Crosstalk 60dB 500kHz To achieve best accuracy one must c
50. n REFerence 16 16S E 8DIFF Channels No MUX YYY 64M 64S E 32DIFF Channels Includes AIMUX 64 32 64 96 128 32 64 96 128 DIFF Channels 1 2 3 4 AIMUX 32 Respectively Table 1 3 16 Bit and Base Model Number Structure 16 Bit Products Rate mer Real D A Board s Connector s Power Required kiz Time 7 USB AI6 16A 16SE 8DIFF 500 YES YES 0 jD 68 Pin Male SCSI _ 5V via USB or Ext Supply 8 USB AIM6 16E 165 8 250 YES NO 0 jD 68 Pin Male SCSI 5V via USB or Ext Supply USB AM6 32A 32DIFF 500 YES YES 0 A D AIMUX 32 DB37 Female x2 15V 5V via AIMUX 32 LUSB AI6 32E 32 DIFF 250 YES NO 0 A D AIMUX 32__ DB37 Female 2 15V 5V via AIMUX 32 5 16 64 64DIFF 500 YES YES 0 A D AIMUX 32 x2 DB37 Female x4 _ 15V 5V via AIMUX 32 50 YES NO 0 AIMUX 32 x2 _ DB37 Female x4_ 15V 5V via AIMUX 32 0 A D AIMUX 64 DB37 Female x 2 5V via USB or Ext Supply 0 64 37 Female x 2_ 5V via USB or Ext Supply 00 YE lt lt lt m 0 A D AIMUX 32 x3 _ DB37 Female x 6_ 15V 5V via 32 0 A D AIMUX 32 x3 _ DB37 Female x6 _ 15V 5V via AIMUX 32 0 A D AIMUX 3204 DB37 Female 8 15V 5V via AIMUX 32 0 2 lt O USB AI16 128A_ 128 DIFF USB AM6 128E 128 DIFF USB AIO16 16A 165
51. n be individually software configured as inputs or outputs Each DIO line is buffered and capable of sourcing 32mA or sinking 64mA Be sure to consult the Power section for total power limitations before operation By default the DIO lines are pulled up with a 10KQ resistor to 5V DIO lines can also be factory configured as pulled down Counter Timer The highly versatile 8254 contains three independent counter timers Counter 0 is available for general purpose use as described below Counters 1 and 2 are dedicated for use in timing A D conversion starts See Appendix A for detailed 8254 operational mode descriptions Counter 0 is a fully programmable 8254 16 bit counter is provided with the Counter Gate Counter Clock and Counter Output signals brought out to the connector All three signals are buffered and capable of sourcing 32mA or sinking 64mA Be sure to consult the Power section for total power limitations before operation The Counter Gate Counter Clock and Counter Output are pulled up with a 10 resistor to 5V The Counter Clock input is software selectable between an internal 10MHz clock and the external Counter Clock The maximum allowed frequency for the clock is 10MHz 11 Manual USB Analog Input Output Family Modules Ordering Guide Use the following tables to select the family model that is right for your application USB XXX12 YYYZ 12 Bit Input OEM no enclosures and Base Models board w enclosure included as standard op
52. nnel 15 Single ended current os or Channel 0 thru Channel 7 Differential inverting current input Analog Ground AGND ES Single ended input return 5V from AIMUX 32 board used to provide power to the USB AIO If no AIMUX board present available for use 5V 100mA 1 REB AIMUX 64M Power Factory use only Do not connect 0 Power Factory use only Do not connect Ch0 thru Ch7 SE ChO thru Ch7 DIFF Ch8 thru Ch15 SE ChO thru Ch7 DIFF MUX CTL E Multiplexer control when AIMUX board s present DACO amp DAC1 ez D A outputs for USB AIO boards Digital I O Bits 0 through 15 two 8 bit bytes programmed as either inputs or outputs DITS up to 5V through 10k ohms Counter Clock Seema 8254 counter timer clock input pulled up Counter Gate 8254 counter timer gate input pulled up active high A D Conversion Start Enable BM Enable Analog to Digital Conversion Starts pulled up active high External Triaaer External Analog to Digital Conversion Start Trigger 99 pulled up software selectable rising falling edge 2 4 20mA or 10 50mA Factory Optional Table 6 2 Base Model Signal Name Descriptions and Directions 23 Manual USB Analog Input Output Family Modules Chapter 7 Base Model Specifications Analog Inputs ADC Type Resolution Sampling rate 16 16A version 16 16E version 12 16 version 12 16 version 12 16 version Nu
53. og inputs and temp sensor DB37 Female Channels 16 31 analog inputs 13 1 77777 Je DB 25 Female 25 14 Figure 9 11 J5 DB25 Female Connector Pin Locations Pim SignalName Pin Sina Name 4 2 po is Dii 3 Did o pos 7 Diis o H8 19 ExemalT gger 20 70 Conversion Start Enable 21 ComterGae 22 Counter Clock 23 Counter Output 24 25 SS Table 9 1 AIMUX 32 J5 DB25 Female Connector Pin Assignments Signal Name AGND Analog Ground External A D Enable Counter Gate Input pulled up Counter Gate B active high Ext A D Conversion Start Trigger pulled up SW Digger selectable for rising falling edge A D Conversion Start Enable External A D Conversion Start Enable pulled up active high Counter Clock 8254 Counter Timer Clock Input pulled up Counter Output 8254 Counter Timer Output pulled up 2 Table 9 2 AIMUX 32 J5 Signal Names and Descriptions 39 Manual USB Analog Input Output Family Modules Powering the AIMUX 32 boards The AIMUX 32 signal conditioning board uses more power than can be provided from the DC DC converter installed on the USB AIO family board over the 68 pin ribbon cable The 8 pin header connector is used to provide the 5V and 15VDC that is required for the instrumentation amplifiers and multiplexer on the AIMUX 32 board Pin Signal Name P
54. on Temperature Sensor Diagram 36 Figure 9 9 RTD Input Diagram uu UU cece rei 37 Figure 9 10 AIMUX 32 Option Selection Map uuu u u 38 Figure 9 11 J5 DB25 Female Connector Pin Locations eese 39 Figure 9 12 DB37 Connector Pin Locations u u u u u u 40 Figure 9 13 USB AIOxx 128A Mechanical Drawing u 43 Figure 9 14 Offset and Gain Error u u uuu u L 47 Figure 9 15 System Calibration Utility Screenshot 1 setup 49 Figure 9 16 System Calibration Utility Screenshot 2 range select 49 Figure 9 17 System Calibration Utility Screenshot 3 offset 50 Figure 9 18 System Calibration Utility Screenshot 4 gain u u 50 Figure 9 19 System Calibration Utility Screenshot 5 confirmation 51 Figure 9 20 System Calibration Utility Screenshot 6 finish and save
55. onstructed by a start and end channel Sampling begins on the start channel and continues through every successive channel until the end channel is sampled Once the end channel has been sampled the process repeats again from the start channel If only one channel is being sampled the start and end channels would be the same Each channel within the set is individually software configured as either S E or DIFF This board allows a mix of both S E and DIFF inputs One must note however that a differential signal requires a pair of channels Thus when channel 0 is programmed as a DIFF input both channels 0 and 8 are used and not available as S E inputs Refer to Chapter 6 Connector Pin Assignments Table 6 1 for S E and DIFF pair inputs 8 Manual USB Analog Input Output Family Modules Optionally on base models 16 S E or 8 DIFF inputs resistors can be factory installed on selected channels to accept 4 20mA or 10 50mA analog inputs A mix of S E and DIFF current inputs are possible but they are factory configured in hardware and cannot be changed by software 8 input ranges 4 unipolar and 4 bipolar are selectable by software for each individual channel This channel by channel flexibility allows for up to 8 different input ranges being acquired on a single board Unipolar ranges are 0 1V 0 2V 0 5V and 0 10V Bipolar ranges are 1 2V 5V and 10V Additional gains can be applied to these ranges using the AIMUX 32 Refer to chapter 9
56. or the USB AIO board channel 0 will apply to AIMUX 32 channels 0 1 2 3 4 5 6 7 USB AIO board channel 1 will apply to AIMUX 32 channels 8 9 10 11 12 13 14 15 etc Each input can be factory configured to accept and condition a variety of input signals These inputs consist of RC filters voltage dividers thermocouples J K T E S R and B thermocouple break detect three wire RTD s both 385 and 392 and installation of bridge completion resistors A 10V source is provided for bridge and RTD excitation To provide a reference junction compensation for the thermocouple channel 8 can be jumpered to accept a two wire temperature sensor LM335 The AIMUX 32 connects to the USB AIO board through a 68 pin SCSI ribbon cable When using two or more AIMUX 32 boards a multi SCSI ribbon cable is used See Figure 9 1 for an illustration of this cable Up to four AIMUX 32 boards may be connected to the USB AIO board for a total of 128 differential analog inputs Analog differential inputs are accessed via two right angle DB 37 female connectors There is a right angle DB 25 female connector for the DIO and control signals 32 Manual USB Analog Input Output Family Modules The AIMUX 32 boards require an external 5V and 15V to operate A right angle 8 pin IDC header is provided on the top AIMUX 32 board to feed this power C68M X 1 substitute of AIMUX 32 boards in place of X
57. perature sensor also known as the reference junction sensor A look up table is used to translate the measured temperature into a voltage This voltage is then subtracted from the measured thermocouple voltage to compensate When ordering this option the MUX board will be configured with a factory installed 10k ohm bias resistor from 15V to channels 15 and 31 input for a reference junction sensor LM335 which is included along with two 37 pin screw terminal blocks Connect the first LM335 Precision Temperature Sensor lead 2 cathode to J3 17 channel 15 and lead 3 anode to AGND preferably J3 18 Connect the second LM335 lead 2 to J4 17 channel 31 and lead 3 to AGND preferably J4 18 Leave both LM335 s lead 1 not connected The Cold Junction Compensation voltage can be measured on channels 15 and 31 of the AIMUX 64 LM335 Temperature ADAP 37M ON CARD INPUT sensor 15V i CH15 S i Ip Pin or LM335 JH 7 cua 1 i INSTALL Pin JUMPERS z 18 refer to option selection map Figure 8 2 AIMUX 64 Reference Junction Temp Sensor Diagram 28 Manual USB Analog Input Output Family Modules 19 1 o Ges Je DB 37 Female oF 20 Figure 8 3 37 Pin Female Connector Pin Locations Pim Pim SignalName 1 CHO SE CHO DIFF 20 CH32 SE CHO DIFF 2 CH1 SE CH1 DIFF 21 CH33 SE CH1 DIFF 3 CH2 SE CH2 DIFF 22 CH34 SE CH2 DIFF 4 CHNSE CH3 DIFF 23
58. pulled up active high External Trigger External Analog to Digital conversion start trigger 99 pulled up software selectable rising falling edge Table 8 4 AIMUX 64 Signal Names and Descriptions Specifications for AIMUX 64 Analog Inputs Number of channels 64 single ended or 32 differential software selectable MUX type 4 1 Refer to Chapter 7 Base Model Specifications for detailed specs Analog Outputs Number of channels 2 Refer to Chapter 7 Base Model Specifications for detailed specs Digital I O Lines 16 from USB AIO board DIOO DIO15 Refer to Chapter 7 Base Model Specifications for detailed specs Counter Timer Lines Gate Clock Output from USB AIO board Refer to Chapter 7 Base Model Specifications for detailed specs Environmental Power required Supplied by USB AIO board via included 68 pin ribbon cable All other environmental specifications refer to Chapter 7 Base Model Specifications 31 Manual USB Analog Input Output Family Modules Chapter 9 Signal Conditioner Model AIMUX 32 Features e Designed to pair with any of the USB AIO base series e 32 differential inputs up to 4 boards for 128 differential inputs e Additional ranges of 0 100mV 0 200mV 0 400mV 0 500mV 0 2 5 100mV 200 400mV 500mV 2 5V e Factory input signal conditioning Additional ranges of 0 1mV 0 5mV 0 10mV 0 20mV 0 50mV 1mV 5mV 10mV 20 50mV RC filters 4 20mA and 10 50mA current inputs RTD measur
59. r cmoo o ev aono 154 aono Cw cw ome cmon 20 Q cmo _ Fw omes curs emos oo cHe cmos omo ome owe ome cmo cuc Fw oe chez cmon 32 cm Cw cma Cha cure char crre cmoo cns cme curn cmoo oa cha cmoo Cw ome cme cure ommo os cme Cuno Cw ons Che curo omir 96 oms cnar cre Cw ano bw par Fw e ap 3 1 T d Table 9 9 AIMUX 32 J3 DB37 Pin outs w CH per Board Stack Position in posi poss poss posa P pect poor poss SteckPosd L3 one onsen choos cms 20 ore cmne L2 os ome chore onse 21 crmz crer Ls owe oso cue cuar 22 cme cre cun Pa ono onere cues omms 23 cmo cns creo 5 cuo Cu cues cuer 2a cmne Pe crei ones cues omm 2s crer chee ose cue omne 28 cree cmne Ls ous oes cur cmo 27 css crer e ev
60. s There are four factory installed output ranges available There are 16 digital I O lines accessible on the I O connector The digital I O lines are grouped into two 8 bit bytes Both digital I O bytes are individually software selectable as input or output A single fully programmable 8254 16 bit counter is provided with a maximum input frequency of 10MHz The Counter Clock Counter Gate amp Counter Output can be accessed externally for extended functionality AIMUX 64 DB25 PIN FOR DIO AND CTR SIGNALS CALIBRATION D A 0 and D A 1 TEMP INPUT USER TEMP SENSOR CJC MUX CONTROL CH 15 or 31 AID 500 250 or 100kHz 16 or 12 bit Differential S E Multiplexer DB37 FEMALE RIGHT ANGLE CONNECTORS x2 D A 0 and D A 1 68 PIN SCSI CONNECTOR Control Lines AIMUX 32 4 to 4 Real Time 8051 Style Calibration Microcontroller le 68 PIN SCSI HIGH DENSITY CONNECTOR Factory configured conditioning for RTDs Load Cells 4 20mA etc 8 1 MUX x4 MUX CONTROL TEMP INPUT CJC CH8 D A 0 and D A 1 68 PINSCSICONNECTOR A D A 0 and D A 1 DB25 PIN FOR DIO AND CTR SIGNALS POWER INPUT HEADER 5V 15 USER TEMP SENSOR DB37 FEMALE RIGHT ANGLE CONNECTORS x2 USB 2 0 BUS Figure 1 1 Block Diagram Analog Inputs Base models have a total of 16 S E or 8 DIFF analog inputs A consecutive set of channels are enabled disabled by software This set of channels is c
61. service and support will be available All equipment originally manufactured by ACCES which is found to be defective will be repaired or replaced subject to the following considerations Terms and Conditions If a unit is suspected of failure contact ACCES Customer Service department Be prepared to give the unit model number serial number and a description of the failure symptom s We may suggest some simple tests to confirm the failure We will assign a Return Material Authorization RMA number which must appear on the outer label of the return package All units components should be properly packed for handling and returned with freight prepaid to the ACCES designated Service Center and will be returned to the customer s user s site freight prepaid and invoiced Coverage First Three Years Returned unit part will be repaired and or replaced at ACCES option with no charge for labor or parts not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime ACCES stands ready to provide on site or in plant service at reasonable rates similar to those of other manufacturers in the industry Equipment Not Manufactured by ACCES Equipment provided but not manufactured by ACCES is warranted and will be repaired according to the terms and conditions of the respective equipment manufacturer s warranty General Under this Warranty liability of ACCES is limited to replacing repairin
62. sio com Please detail any errors you find and include your mailing address so that we can send you any manual updates ACCES I O PRODUCTS INC 10623 Roselle Street San Diego CA 92121 Tel 858 550 9559 FAX 858 550 7322 www accesio com 52 Manual USB Analog Input Output Family Modules
63. tack Position 42 5 Manual USB Analog Input Output Family Modules Chapter 1 Introduction The USB AIO family of Data Acquisition Modules is an ideal solution for adding portable easy to install high speed analog and digital I O capabilities to any computer with a USB port The unit is a USB 2 0 high speed device and requires a USB 2 0 port to function This manual describes the 120 analog I O modules within the USB AIO family There 60 OEM models that are shipped with no enclosure and 60 more enclosed and integrated models The enclosed models are named DAQ PACK and DAQ PACK M Series OEM versions have model names beginning with USB while the DAQ PACK model names start with DPK Each model varies in capabilities such as analog to digital A D resolution and sampling speed calibration hardware number of channels signal conditioning capabilities and analog outputs Where specific version or model information is referred to with an xx the xx are substituted with the total number of channels available on that model Please refer to Product Selector Tables 1 1 through 1 4 for a complete list of available models Features e High speed USB 2 0 device e From 16 single ended or 8 differential base models up to 128 differential analog inputs e 16 bit resolution versions O Sampling rate 16 Advanced version 500ksamples sec max aggregate 16
64. the USB AIO family on the page with Figure 8 4 AIMUX 64 Reference Junction Temperature Sensor Diagram LM335 Temperature ADAP 37M ON CARD INPUT sensor 10V Pin CH8 LM335 28 INSTALL JUMPERS 29 refer to option selection map Figure 9 8 AIMUX 32 Reference Junction Temperature Sensor Diagram 36 Manual USB Analog Input Output Family Modules RTD Measurement The RTD option accommodates three wire RTD s A 66 5kQ precision resistor in series with an RTD lead wire and the RTD sensor determines the sensor s resistance The first 66 5kOhm resistor is connected between the 10V excitation voltage and the CH input The second 66 5 resistor is connected between the 10V excitation voltage and CH This is to provide lead length compensation The voltage drops across the lead wires cancel at the differential signal input CH 3 WIRE ANALOG GROUND 3 WIRE RTD SENSOR RTD Figure 9 9 RTD Input Diagram 37 Manual USB Analog Input Output Family Modules AIMUX 32 Hardware Details In most cases all jumper selections will be made at the factory prior to shipping based on pre sales application technical support It may be necessary to set the GAIN jumpers in the field In the case of thermocouple applications it is usually only necessary to have one reference junction sensor connected to provide adequate compensation The Ch 8 Temp jumper would be connected on the Stack Position 1 board in the stack Option Selec
65. the counter s clock input Trigger A rising edge input to the counter s gate input Counter Loading Programming a binary count into the counter Mode 0 Pulse on Terminal Count After the counter is loaded the output is set low and will remain low until the counter decrements to zero The output then goes high and remains high until a new count is loaded into the counter A trigger enables the counter to start decrementing Mode 1 Retriggerable One Shot The output goes low on the clock pulse following a trigger to begin the one shot pulse and goes high when the counter reaches zero Additional triggers result in reloading the count and starting the cycle over If a trigger occurs before the counter decrements to zero a new count is loaded This forms a retriggerable one shot In mode 1 a low output pulse is provided with a period equal to the counter count down time Mode 2 Rate Generator This mode provides a divide by N capability where N is the count loaded into the counter When triggered the counter output goes low for one clock period after N counts reloads the initial count and the cycle starts over This mode is periodic the same sequence is repeated indefinitely until the gate input is brought low This mode also works well as an alternative to mode 0 for event counting 45 Manual USB Analog Input Output Family Modules Mode 3 Square Wave Generator This mode operates like mode 2 The output is high for half of the count and low
66. tion The Stack Position jumpers illustrated below select the outputs from each of four 8 1 MUX per AIMUX 32 board which become the inputs to the USB AIO board The first AIMUX 32 board must have the jumpers installed to Stack Position 1 the second to Stack Position 2 etc The gain jumpers apply to all eight channels within the group Group A applies to channels 0 7 Group B applies to channels 8 15 etc of the AIMUX 32 board Install the Ch 8 Temp Sensor Enable jumpers to use the temperature sensor 0 20 J4 DB37 FEMALE CHANNELS 16 31 CHANNELS 24 31 GROUP D G0 G1 GAIN x1 x2 x5 Go G1 pOGAAHA STACK POSITION SELECT ooooooooooooo0ooo aie GROUP GROUP STACK POSITION 1 yo J5 DB25 FEMALE G1 Go ojo BB co M STACK POSITION 2 GAIN x10 x5 x2 x1 E STACK POSITION 3 CHANNELS 8 15 GROUP J3 DB37 FEMALE CHANNELS 0 15 STACK POSITION 4 Figure 9 10 AIMUX 32 Option Selection Map Note that in the Option Selection Map the red pin for the IDC connectors indicates the location of pin 1 and the red arrows on the DB37 connectors indicates the pin 1 location 38 Manual USB Analog Input Output Family Modules Controls Connectors and Indicators J5 P2 J1 J3 J4 DB25 Female A D control and digital I O 8 Pin Male Header 5V and 15V input power and ground 68 Pin SCSI Connects to USB AIO board DB37 Female Channels 0 15 anal
67. tion for OEM version Al Analog Inputs AIO Analog Inputs Outputs 16 16S E 8DIFF Channels No MUX 64M 64S E 32DIFF Channels Includes AIMUX 64 32 64 96 128 32 64 96 128 DIFF Channels 1 2 3 4 AIMUX 32 Respectively A Advanced Model 500k CALibration REFerence Real Time Cal HW constants stored on board update A D values in real time No Letter Standard Model 250k CALibration REFerence E Economy Model 100k Table 1 1 12 Bit and Base Model Number Structure 12 Bit Products Rate EL Board s Connector s Power Required kHz Time Al12 165 8 500 YES YES o ND 68 Pin Male SCSI 5V via USB or Ext Supply I6SE 8DIEF 250 YES NO 0 AD 68 Pin Male SCSI_ 5V via USB or Ext Supply I6SE 8DIFF 100 NO NO o ND 68 Pin Male SCSI 5V via USB or Ext Supply 32 DIFF 500 YES YES 0 AIMUX32 DB37Femalex2 15V 5V via AIMUX 32 32 DIFF 250 YES NO 0 A D AIMUX 32 DB37 Female x2 15V 5V via AIMUX 32 USB Al12 32E 100 NO NO 0 32_ 0837 Female x2 15V 5V via AIMUX 32 USB AI2 64A 64DIFF 500 YES YES 0 AIMUX 32 x2 _ DB37 Female x4 _ 15V 5V via AIMUX 32_ Al12 64 DIFF 250 5 NO A D AIMUX 32 x2 _ DB37 Female x4 15V 5V via AIMUX 32_ USB Al12 64E 00 NO NO 0 AIMUX 32 x2 _ DB37 Female x4 _ 15V 5V via AIMUX 32 USB Al12 64MA_ 64SE 32 DIFF 500 YES YES 0 A D
68. ty enne 49 LIST OF FIGURES Figure 1 1 Block Diagram sissies iaiaaeaia rei Cedo ne Lea EnaA AEA a aa 8 Figure 6 1 68 Pin SCSI Connector Pin Locations esses uu uu u 22 Figure 8 1 AIMUX 64 Board with Connectors eese uuu uu uu u 27 Figure 8 2 AIMUX 64 Reference Junction Temp Sensor Diagram 28 Figure 8 3 37 Pin Female Connector Pin Locations uu uu u u 29 Figure 8 4 25 Pin Female Connector Pin Locations U U 30 Figure 9 1 C68M X Multi SCSI Cable Drawing U U uuu uu uu u 33 4 Manual USB Analog Input Output Family Modules Figure 9 2 Normal IRpHISUUU L 34 9 3 Filter u s n 34 Big tire 9 2 Atte MUON 34 Figure 9 5 Current Input 222 2 uu u Saa isuu usss Aussi qasa qS uu 35 Figure 9 6 Bridge Completion Diagram u u uuu uu 35 Figure 9 7 Thermocouple Input Diagram 36 Figure 9 8 AIMUX 32 Reference Juncti
69. with this option combined w TCx High gain Special designator contact factory to specify a voltage divider for your application or to discuss any other special requirements Optional Accessories for Models that include the AIMUX 32 ADAP37M Screw Terminal Adapter with female DB37 connector 2 needed per AIMUX 32 ADAP25M Screw Terminal Adapter with female DB25 connector Cable Assembly Crimp Kit DB37 male crimp kit 33 Manual USB Analog Input Output Family Modules Front end circuit and connection diagrams Standard Configuration Accepts inputs up to 10V CH VOLTS LN NORMAL INPUTS enu ANALOG GROUND Figure 9 2 Normal Inputs RC Filter Option This option adds an RC filter to the inputs It can also be added in conjunction with the other input options CH VOLTS Tew 4 WITH R C FILTER OPTIONAL ANALOG GROUND Figure 9 3 RC Filter Input Voltage Divider Attenuator The standard model configuration is intended for voltage inputs of no more than 10 This input option allows voltages up to 30V using resistive voltage dividers Input values are specified by the customer CH VOLTS WITH ATTENUATION ANALOG GROUND Figure 9 4 Attenuation 34 Manual USB Analog Input Output Family Modules 4 20mA 10 50mA Current Input A precision resistor is installed from the positive input to the negative input The input is not offset so that an input will be read as 1V
70. ya ACCES 0 PRODUCTS INC 10623 Roselle Street San Diego CA 92121 858 550 9559 ax 858 550 7322 contactus accesio com www accesio com USB MULTI CHANNEL HIGH SPEED ANALOG I O FAMILY MODEL USB AIO16 xxx and USB AIO12 xxx USER MANUAL File MUSB AIO FAMILY B7i Notice The information in this document is provided for reference only ACCES does not assume any liability arising out of the application or use of the information or products described herein This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others IBM PC PC XT and PC AT are registered trademarks of the International Business Machines Corporation Copyright by ACCES I O Products Inc 10623 Roselle Street San Diego CA 92121 All rights reserved WARNING ALWAYS CONNECT AND DISCONNECT YOUR FIELD CABLING WITH THE COMPUTER POWER OFF ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A BOARD CONNECTING AND DISCONNECTING CABLES OR INSTALLING BOARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I O BOARD AND WILL VOID ALL WARRANTIES IMPLIED OR EXPRESSED 2 Manual USB Analog Input Output Family Modules Warranty Prior to shipment ACCES equipment is thoroughly inspected and tested to applicable specifications However should equipment failure occur ACCES assures its customers that prompt
71. you THEN see the correct data displayed Click Next when you re comfortable with the data shown z Previous se Cancel and Exit Figure 9 18 System Calibration Utility Screenshot 4 gain 50 Manual USB Analog Input Output Family Modules System Calibration Utility EN 101 xj Confirm Calibration by applying any desired inputs to your sensor and verifying the displayed value 1555 10D5 below You may need to convert to engineering 1556 gt 10D6 units manually display is in Volts 1557 10D7 1558 gt 10D8 1559 gt 10D 1554 gt 10DB 155B gt 10DC This field shows the Current Reading from Channel 0 155 gt 10DD 3 84353 I 1580 gt 10DE 155E gt 10DF Previous Cancel and Exit Figure 9 19 System Calibration Utility Screenshot 5 confirmation or System Calibration Utility loj x The calibration data you have created must now be saved to a unique filename for later use by your program Please select the filename you would like to use When you later write your code use this filename in the SetCal function call usgan 642008 01 24 10 00 bin Browse Previous Cancel and Exit Figure 9 20 System Calibration Utility Screenshot 6 finish and save 51 Manual USB Analog Input Output Family Modules Customer Comments If you experience any problems with this manual or just want to give us some feedback please email us at manuals acce

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