NI 6703/6704 User Manual
Contents
1. 1 NATIONAL INSTRUMENTS PRODUCTS ARE NOT DESIGNED WITH COMPONENTS AND TESTING FOR A LEVEL OF RELIABILITY SUITABLE FOR USE IN OR IN CONNECTION WITH SURGICAL IMPLANTS OR AS CRITICAL COMPONENTS IN ANY LIFE SUPPORT SYSTEMS WHOSE FAILURE TO PERFORM CAN REASONABLY BE EXPECTED TO CAUSE SIGNIFICANT INJURY TO A HUMAN 2 IN ANY APPLICATION INCLUDING THE ABOVE RELIABILITY OF OPERATION OF THE SOFTWARE PRODUCTS CAN BE IMPAIRED BY ADVERSE FACTORS INCLUDING BUT NOT LIMITED TO FLUCTUATIONS IN ELECTRICAL POWER SUPPLY COMPUTER HARDWARE MALFUNCTIONS COMPUTER OPERATING SYSTEM SOFTWARE FITNESS FITNESS OF COMPILERS AND DEVELOPMENT SOFTWARE USED TO DEVELOP AN APPLICATION INSTALLATION ERRORS SOFTWARE AND HARDWARE COMPATIBILITY PROBLEMS MALFUNCTIONS OR FAILURES OF ELECTRONIC MONITORING OR CONTROL DEVICES TRANSIENT FAILURES OF ELECTRONIC SYSTEMS HARDWARE AND OR SOFTWARE UNANTICIPATED USES OR MISUSES OR ERRORS ON THE PART OF THE USER OR APPLICATIONS DESIGNER ADVERSE FACTORS SUCH AS THESE ARE HEREAFTER COLLECTIVELY TERMED SYSTEM FAILURES ANY APPLICATION WHERE A SYSTEM FAILURE WOULD CREATE A RISK OF HARM TO PROPERTY OR PERSONS INCLUDING THE RISK OF BODILY INJURY AND DEATH SHOULD NOT BE RELIANT SOLELY UPON ONE FORM OF ELECTRONIC SYSTEM DUE TO THE RISK OF SYSTEM FAILURE TO AVOID DAMAGE INJURY OR DEATH THE USER OR APPLICATION DESIGNER MUST TAKE REASONABLY PRUDENT STEPS TO PROTECT AGAINST SYSTEM FAILURES INCLUDING BUT NOT LIMITED TO BACK UP OR SHUT DOWN ME2. 2 3 instrument drivers NI resources C 1 K KnowledgeBase C 1 National Instruments support and services C 1 NI 6703 6704 block diagram 3 1 common questions B 1 custom cabling 1 3 features 1 1 hardware overview 3 1 optional equipment 1 3 requirements for getting started 1 2 NI support and services C 1 nonvolatile RAM DAC control 3 2 NI 6703 6704 User Manual 1 2 0 optional equipment 1 3 P P0 lt 0 7 gt signals table 2 3 physical specifications A 4 pin assignments for I O connector figure 2 2 power connections 2 7 power requirement specifications A 3 power on state current output for NI 6704 device 2 6 digital I O 2 7 voltage output 2 4 programming examples NI resources C 1 Q questions about NI 6703 6704 analog output B 1 R related documentation viii requirements for getting started 1 2 S safety specifications A 4 self resetting protection circuit breaker 2 7 signal connections 2 1 analog output current output for NI 6704 2 5 voltage channel outputs figure 2 4 voltage outputs 2 4 digital I O 2 6 T O connector pin assignments figure 2 2 signal connection descriptions table 2 3 power connections 2 7 ni com software NI resources C 1 specifications analog output current output NI 6704 only A 2 dynamic characteristics A 2 stability A 2 transfer characteristics A 1 voltage output A 1 bus interface A 3 CE compliance A 5 digital I
3. as contrasted with onboard RAM The rate measured in bytes s at which data is moved from source to destination after software initialization and set up operations the maximum rate at which the hardware can operate Transistor transistor logic Typical The output equivalent of a scan One or more analog or digital output samples Typically the number of output samples in an update is equal to the number of channels in the output group For example one pulse from the update clock produces one update which sends one new sample to every analog output channel in the group G 6 National Instruments Corporation VDC VI Glossary Volts Volts direct current Virtual Instrument 1 A combination of hardware and or software elements typically used with a PC that has the functionality of a classic stand alone instrument 2 A LabVIEW software module VI which consists of a front panel user interface and a block diagram program Watts O National Instruments Corporation G 7 NI 6703 6704 User Manual Index Numerics 5 V signal description table 2 3 power connections 2 7 self resetting protection circuit breaker 2 7 A analog output signal connections common questions B 1 current output for NI 6704 2 5 voltage output 2 4 voltage output connections figure 2 4 analog output specifications current output NI 6704 only A 2 dynamic characteristics A 2 stability A 2 transfer characteristics
4. 39 P0 4 6 40 PO 5 7 41 P0 6 8 42 PO 7 9 43 AO 31 1 10 44 AO GND 15 31 11 45 AO 14 V 12 46 AO 29 1 13 47 AO GND 13 29 14 48 AO 12 V 15 49 AO 27 I 16 50 AO 11 V 17 51 AO GND 10 26 18 52 AO GND NC 19 53 AO GND 9 25 20 54 AO 24 1 21 55 AO 8 V 22 56 AO 23 I 23 57 AO GND 7 23 24 58 AO 6 V 25 59 AO 21 I 26 60 AO GND 5 21 27 61 AO 4 V 28 62 AO 19 I 29 63 AO GND 3 19 30 64 AO 2 V 31 65 AO 17 I 32 66 AO GND 1 17 33 67 ae V Voltage Current y D GND NC D GND D GND RESERVED D GND RESERVED D GND D GND AO GND NC AO 15 V AO 30 I AO GND 14 30 AO 13 V AO 28 I AO GND 12 28 AO GND 11 27 AO 26 I AO 10 V AO 25 I AO 9 V AO GND 8 24 AO GND NC AO 7 V AO 22 I AO GND 6 22 AO 5 V AO 20 I AO GND 4 20 AO 3 V AO 18 I AO GND 2 18 AO 1 V AO 16 I AO GND 0 16 TNo Connect on the NI 6703 2Connected to Ground on the NI 6703 6704 No Connect on the SH68 68 D1 Cable Figure 2 1 1 0 Connector Pin Assignments 2 2 ni com Signal Connection Descriptions Chapter 2 Signal Connections Signal Name Reference Direction Description P0 lt 0 7 gt DGND Input or Digital I
5. NI DAQ refers to the NI DAQ driver software Related Documentation The following documents contain information you may find helpful NI 6703 6704 User Manual DAQ Quick Start Guide located at ni com manuals DAQ STC Technical Reference Manual located at ni com manuals NI 6703 6704 Calibration Procedure for DAQmx located at ni com manuals NI Developer Zone tutorial Field Wiring and Noise Considerations for Analog Signals located at ni com zone NI DAQ User Manual for PC Compatibles located at ni com manuals NI DAQ Function Reference Help You can access this help file by clicking Start Programs National Instruments NI DAQ NI DAQ Help PCI Local Bus Specification Revision 2 2 PICMG 2 0 R3 0 CompactPCI Core Specification PXI Specification Revision 2 0 available from www pxisa org viii ni com Introduction This chapter describes the NI 6703 6704 devices lists what you need to get started describes optional software equipment and custom cables and explains how to unpack your device For information about installing and configuring your device refer to the DAQ Quick Start Guide at ni com manuals About the NI 6703 6704 The NI 6703 6704 devices are precise DC setpoint devices for PCI and PXI The NI 6703 devices have 16 voltage output channels The NI 6704 devices have 16 voltage output channels and 16 current output channels for a total of 32 analog output channels The NI 6703 6704 devices hav
6. and or data acquisition and control interfaces Integrated circuit NI 6703 6704 User Manual Glossary in INL interrupt interrupt level KB LED LSB max min MSB NI 6703 6704 User Manual Inches Integral Nonlinearity A measure in LSB of the worst case deviation from the ideal A D or D A transfer characteristic of the analog I O circuitry A computer signal indicating that the CPU should suspend its current task to service a designated activity The relative priority at which a device can interrupt Current output high Current output low Kilobytes 1 024 bytes when referring to memory Light emitting diode Least significant bit Meters Maximum Minimum Most significant bit G 4 National Instruments Corporation NC NI DAQ noise nvRAM 0 operating system PC PCI port ppm PXI Glossary Not connected National Instruments driver software for DAQ hardware An undesirable electrical signal Noise comes from external sources such as the AC power line motors generators transformers fluorescent lights soldering irons CRT displays computers electrical storms welders radio transmitters and internal sources such as semiconductors resistors and capacitors Noise corrupts signals you are trying to send or receive Nonvolatile RAM Base level software that controls a computer runs programs interacts with users and communicates with installed
7. hardware or peripheral devices Personal computer Peripheral Component Interconnect A high performance expansion bus architecture originally developed by Intel to replace ISA and EISA It has achieved widespread acceptance as a standard for PCs and workstations and offers a theoretical maximum transfer rate of 132 Mbytes s 1 A communications connection on a computer or a remote controller 2 A digital port consisting of four or eight lines of digital input and or output Parts per million PCI eXtensions for Instrumentation A rugged open system for modular instrumentation based on CompactPCI with special mechanical electrical and software features National Instruments Corporation G 5 NI 6703 6704 User Manual Glossary R RAM resolution RTSI S S settling time slot system RAM T transfer rate TTL typ update NI 6703 6704 User Manual Random access memory The smallest signal increment that can be detected by a measurement system Resolution can be expressed in bits in proportions or in percent of full scale For example a system has 12 bit resolution one part in 4 096 resolution and 0 0244 of full scale Real Time System Integration Seconds The amount of time required for a voltage to reach its final value within specified limits A position where a module can be inserted into the PCI bus RAM installed on a personal computer and used by the operating system
8. lines Power Connections Pin 1 on the I O connector is connected to the 5 V supply from the PCI or PXI bus power supply This pin is referenced to D GND and can supply power to external circuitry The 5 V supply has a total of 0 75 A available The 5 V power supply has a self resetting protection circuit breaker in series If the circuit breaker protection is activated remove the circuit causing the heavy current load and the circuit breaker will reset itself For more information on these output pins refer to the Digital I O section and Power Requirement section in Appendix A Specifications Power tating s sacez i scsceiseessctssivieeesssebedscaees 0 75 A at 5 V 10 4 55 to 5 25 VDC at 0 75 A UN Caution Never connect these 5 V power pins directly to ground or to any other voltage source on your NI 6703 6704 device or any other device Doing so can damage your device and your computer system National Instruments is not liable for damage resulting from such a connection National Instruments Corporation 2 7 NI 6703 6704 User Manual Hardware Overview This chapter contains an overview of the hardware functions on the NI 6703 6704 The block diagram in Figure 3 1 illustrates the key functional components of the NI 6703 6704 Control gt Bus Interface a gt i ata Logic lt gt 16 Volta
9. multiplexed to create 16 voltage output 16 current output and four calibration channels The channels are sampled at a rate of 50 us per channel meaning a channel can change value a maximum of 1 8 ms after it has been updated by software National Instruments Corporation B 1 NI 6703 6704 User Manual Technical Support and Professional Services Visit the following sections of the National Instruments Web site at ni com for technical support and professional services O National Instruments Corporation Support Online technical support resources at ni com support include the following Self Help Resources For answers and solutions visit the award winning National Instruments Web site for software drivers and updates a searchable KnowledgeBase product manuals step by step troubleshooting wizards thousands of example programs tutorials application notes instrument drivers and so on Free Technical Support All registered users receive free Basic Service which includes access to hundreds of Application Engineers worldwide in the NI Developer Exchange at ni com exchange National Instruments Application Engineers make sure every question receives an answer For information about other technical support options in your area Visit ni com services or contact your local office at ni com contact Training and Certification Visit ni com training for self paced training eLearning virtual classrooms int
10. on State All current outputs are within 1 1 mA maximum of their user defined values within 0 5 s of power on board reset The current outputs will settle to their user defined values to full accuracy within 7 s of power on board reset Take this behavior into account when connecting external devices to the NI 6704 Digital 1 0 Signal Connections Figure 2 4 illustrates example signal connections for three typical digital T O applications A 5V LED Ll L AMA Line O R Line 1 gt e P0 lt 0 7 gt TTL Signal ined ine 5V lt 4 WV oO Switch TD GND 1 0 Connector gt NI 6703 6704 Figure 2 4 Example Digital 1 0 Connections NI 6703 6704 User Manual 2 6 ni com Chapter 2 Signal Connections In Figure 2 4 Line 0 is configured for digital output Lines 1 and 2 are configured for digital input Digital input applications include receiving TTL signals and sensing external device states such as the switch in Figure 2 4 Digital output applications include sending TTL signals and driving external devices such as the LED shown in Figure 2 4 3 Note The NI 6703 6704 devices allow line by line direction control of digital I O connections Refer to Appendix A Specifications for a list of the digital I O signal ratings Power on State At power on all of the DIO lines on the NI 6703 6704 devices are configured as input
11. or pad that can contain multiple channels and conversion devices Plug in boards PCMCIA cards and devices such as the DAQPad 1200 which connects to your computer parallel port are all examples of DAQ devices Digital input output G 2 National Instruments Corporation DLL drivers driver software E EEPROM F function GND H hardware hex Hz VO IC O National Instruments Corporation G 3 Glossary Dynamic Link Library A software module in Microsoft Windows containing executable code and data that can be called or used by Windows applications or by other DLLs Functions and data in a DLL are loaded and linked at run time when they are referenced by a Windows application or other DLLs Software that controls a specific hardware device such as a DAQ board Electrically Erasable Programmable Read Only Memory ROM that can be erased usually by ultraviolet light exposure and reprogrammed A set of software instructions executed by a single line of code that may have input and or output parameters and returns a value when executed Ground signal or bit The physical components of a computer system such as the circuit boards plug in boards chassis enclosures peripherals cables and so on Hexadecimal Hertz The number of scans read or updates written per second Input output The transfer of data to from a computer system involving communications channels operator interface devices
12. 1 O Signal Connections rainier iiie eni a REEE nacion cnn n cnc i 2 6 Power on State tc ceussevegeeneeneh decane 2 7 POWeEr COMNECUOMNS recado tl ici dad A dE a EES AAA Areso 2 7 Chapter 3 Hardware Overview Bus Interface CIIU cui iran 3 2 Nonvolatile RAM DAC Controli nnii E E ENEE 3 2 Digital VO Controla ii AE 3 2 TEMpPOrAtUTE Sensor rta ti irlaid 3 2 Chapter 4 Calibration Internal or Self CallbratioN ccoo ocre noia ostescneveasdasctess seeccann assi 4 1 External Calibration iii ii 4 1 O National Instruments Corporation v NI 6703 6704 User Manual Contents Appendix A Specifications Appendix B Common Questions Appendix C Technical Support and Professional Services Glossary Index NI 6703 6704 User Manual vi ni com About This Manual Conventions This manual contains information about using the NI PCI PXI 6703 6704 devices The NI 6703 6704 devices are designed for precise DC setpoint applications and provide general purpose digital I O If you are using NI DAQ 7 4 or later refer to the DAQ Quick Start Guide which you can download at ni com manuals The DAQ Quick Start Guide offers NI DAQ users step by step instructions for installing software and hardware configuring channels and tasks and getting started developing an application The NI 6703 6704 family includes the following devices e NI PCI 6703 e NI PCI 6704 e NI PXI 6704 lt gt bold italic The following conventions appear in th
13. 2 2 shows how to connect the voltage channel as a voltage output AO n V Load 10 1V AO GND NI 6703 6704 Floating Load Figure 2 2 Voltage Output Connections You can connect a floating load to your NI 6703 6704 device at the voltage output channel UN Caution Because NI 6703 6704 devices are not electrically isolated from high voltages a load with high common mode voltages can damage the devices National Instruments is not liable for any damages resulting from any such signal connections NI 6703 6704 User Manual The NI 6703 6704 device has a bipolar voltage range of 10 1 to 10 1 V Maximum load current is 10 mA for 16 bit linearity Power on State All voltage outputs are at their user defined values to full accuracy within 1 s of power on board reset Before this time the voltage outputs can float to unspecified values Take this behavior into account when connecting external devices to the NI 6703 6704 2 4 ni com Chapter 2 Signal Connections NI 6704 Current Output You can connect a floating or grounded load to your NI 6704 device at the current output channel You do not need an external floating power supply to complete the controlled current loop You can control the current loop from 0 1 to 20 2 mA The compliance for the current loop is 0 V to 10 VDC Sy Note The voltage is not clamped at 10 V If the current supplied to the load generates a voltage greater than 10 V the
14. A 1 voltage output A 1 AO lt 0 15 gt V signals table 2 3 AO lt 16 31 gt I signals table 2 3 AO GND lt 0 16 15 31 gt signals table 2 3 AO GND signal table 2 3 AO n J connection as current output figure 2 5 bus interface circuitry 3 2 specifications A 3 C calibration external calibration 4 1 self calibration 4 1 National Instruments Corporation calibration certificate NI resources C 2 CE compliance specifications A 5 common questions See questions about NI 6703 6704 conventions used in the manual vii current output for NI 6704 current output connections figure 2 5 power on state 2 6 signal connections 2 5 specifications A 2 custom cabling 1 3 D D GND signal table 2 3 Declaration of Conformity NI resources C 1 diagnostic tools NI resources C 1 digital I O example connections figure 2 6 hardware overview 3 2 power on state 2 7 signal connections 2 6 specifications A 3 documentation conventions used in manual vii NI resources C 1 related documentation viii drivers NI resources C 1 NI 6703 6704 User Manual Index E electromagnetic compatibility specifications A 5 equipment optional 1 3 examples NI resources C 1 F frequently asked questions See questions about NI 6703 6704 H hardware overview 3 1 help technical support C 1 T O connector pin assignments figure 2 2 signal connection descriptions table
15. CHANISMS BECAUSE EACH END USER SYSTEM IS CUSTOMIZED AND DIFFERS FROM NATIONAL INSTRUMENTS TESTING PLATFORMS AND BECAUSE A USER OR APPLICATION DESIGNER MA Y USE NATIONAL INSTRUMENTS PRODUCTS IN COMBINATION WITH OTHER PRODUCTS IN A MANNER NOT EVALUATED OR CONTEMPLATED BY NATIONAL INSTRUMENTS THE USER OR APPLICATION DESIGNER IS ULTIMATELY RESPONSIBLE FOR VERIFYING AND VALIDATING THE SUITABILITY OF NATIONAL INSTRUMENTS PRODUCTS WHENEVER NATIONAL INSTRUMENTS PRODUCTS ARE INCORPORATED IN A SYSTEM OR APPLICATION INCLUDING WITHOUT LIMITATION THE APPROPRIATE DESIGN PROCESS AND SAFETY LEVEL OF SUCH SYSTEM OR APPLICATION Contents About This Manual CONVENTIONS RRA Vii Related Documentation ion eii aaa aer viii Chapter 1 Introduction About the NE6703 6704 issen nn aneian r a ini 1 1 Using PXI with Comp ctPCI inisiasi nennir Ppi eiaa niaan i a 1 2 What You Need to Get Started sinnata E E E SEEE 1 2 Optional Equipment e e naar a i e i E aR A a i 1 3 Custom Cabling nieren a a ati aaria a e aan EEEa E EER EA EAS 1 3 Chapter 2 Signal Connections VO Connector Pin Assignments cspern neea E A RA 2 1 Signal Connection Descriptions essssesssseseesesresesesresterestrsesresrsresreereresreeesreet 2 3 Analog Output Signal Connections esssessseesssesssterrsrsresreststesrsrestesesrestsetstesrsesreresteet 2 4 Voltage Outp t ina RE E Ae ee ER E 2 4 Power On State canina 2 4 NI 6704 Current Outputs 2 04 spiders 2 5 Power on Mc 2 6 Digital
16. DAQ NI 6703 6704 User Manual DC Analog Output Devices for PCI PXI CompactPC Bus Computers February 2005 4 NATIONAL 372110C 01 INSTRUMENTS Worldwide Technical Support and Product Information ni com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin Texas 78759 3504 USA Tel 512 683 0100 Worldwide Offices Australia 1800 300 800 Austria 43 0 662 45 79 90 0 Belgium 32 0 2 757 00 20 Brazil 55 11 3262 3599 Canada Calgary 403 274 9391 Canada Ottawa 613 233 5949 Canada Qu bec 450 510 3055 Canada Toronto 905 785 0085 Canada Vancouver 604 685 7530 China 86 21 6555 7838 Czech Republic 420 224 235 774 Denmark 45 45 76 26 00 Finland 385 0 9 725 725 11 France 33 0 1 48 14 24 24 Germany 49 0 89 741 31 30 India 91 80 51190000 Israel 972 0 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Malaysia 603 9131 0918 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7 095 783 68 51 Singapore 65 6226 5886 Slovenia 386 3 425 4200 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 200 51 51 Taiwan 886 2 2528 7227 Thailand 662 992 7519 United Kingdom 44 0 1635 523545 For further support information refer to the Technical Support and Professional Services appendix To comment on National Instruments documentat
17. O A 3 electromagnetic compatibility A 5 physical A 4 power requirements A 3 safety A 4 National Instruments Corporation Index T technical support C 1 temperature sensor 3 2 training and certification NI resources C 1 troubleshooting NI resources C 1 V voltage output power up condition 2 4 signal connections 2 4 specifications A 1 voltage output connections figure 2 4 W Web resources C 1 NI 6703 6704 User Manual
18. O lines Line 7 is the MSB and Output Line 0 is the LSB AO lt 0 15 gt V AO GND Output Voltage output channels AO lt 16 31 gt 1 AO GND Output Current output channels on the NI 6704 No connects on the NI 6703 AO GND lt 0 16 15 31 gt Analog Output Grounds Each ground pin is shared between one voltage and one current channel These pins are connected to the NI 6703 6704 device analog ground plane All NI 6703 6704 device ground planes connect to the computer system s ground signal AO GND Additional pins connected to analog output ground If you are using a SH68 68 D1 cable these signals are not connected D GND Digital Ground These pins are connected to the NI 6703 6704 device digital ground plane All NI 6703 6704 device ground planes connect to the computer system s ground signal 5 V D GND Output 5 V This pin is connected to the computer system s 5 VDC supply through a self resetting circuit breaker RESERVED Reserved for future use National Instruments Corporation NI 6703 6704 User Manual Chapter 2 Signal Connections Analog Output Signal Connections Voltage Output This section describes how to make connections for voltage and current outputs The NI 6704 has both voltage and current outputs The NI 6703 has voltage outputs only A 68 pin cable such as the SH68 68 D1 cable is required Figure
19. art 15A above 1 GHz MUN can aa EN 61326 1997 A2 2001 Table 1 EMC EML 0 0 ccccccccccscccccsecceeeeseseseeseenns CE C Tick and FCC Part 15 Class A Compliant 3 Note For EMC compliance operate this device with shielded cabling CE Compliance This product meets the essential requirements of applicable European Directives as amended for CE marking as follows Low Voltage Directive safety 73 23 EEC Electromagnetic Compatibility Directive EMC rretsi ninis 89 336 EEC ay Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product visit ni com certification search by model number or product line and click the appropriate link in the Certification column National Instruments Corporation A 5 NI 6703 6704 User Manual Common Questions This appendix contains commonly asked questions and their answers relating to usage and special features of the NI 6703 6704 Analog Output How fast does the NI 6703 sample channels The NI 6703 devices have one 16 bit DAC that is time division multiplexed to create 16 voltage output and two calibration channels The channels are sampled at a rate of 50 Us per channel meaning a channel can change value a maximum of 0 9 ms after it has been updated by software How fast does the NI 6704 sample channels The NI 6704 devices have one 16 bit DAC that is time division
20. device will generate a voltage greater than 10 V UN Caution Because the NI 6704 is not electrically isolated from high voltages a load with high common mode voltages can damage the NI 6704 National Instruments is not liable for any damages resulting from any such signal connections Figure 2 3 shows how to connect a current channel as a current output alll AO n I Load 0 1 to 20 2 mA AO GND NI 6704 Figure 2 3 Current Output Connections Because each current channel shares a ground line with a voltage channel try to minimize the effect of the return current from your current channel on the voltage that you are outputting on your voltage channel For example if you output 20 mA on a current channel and return that current to the NI 6704 device along the shared ground line in a cable with an National Instruments Corporation 2 5 NI 6703 6704 User Manual Chapter 2 Signal Connections impedance of 0 1 Q the voltage output with drop 2 mV by the voltage channel sharing the ground line You can avoid this problem in the following ways e Use a shorter cable to minimize the impedance of the shared ground line e Use separate wiring for voltage channel and current channel ground lines return to minimize common ground impedance e Use different pairs of voltage and current channels to keep your sensitive voltage outputs separate from your higher output current channels Power
21. e eight digital I O lines You can use the NI 6703 6704 devices in a wide variety of DC setpoint and digital I O applications With the NI 6703 6704 devices your PC system can serve as a digital I O system controller for laboratory testing production testing and industrial process monitoring and control These devices can do the following e Generate experimental stimuli e Generate analog functions e Connect to a variety of signal types including Electromechanical relays LEDs Optically isolated solid state relays and I O module mounting racks Voltage and current excitation for precision transducers Current excitation for precision transducers NI 6704 only Detailed specifications for the NI 6703 6704 devices are in Appendix A Specifications National Instruments Corporation 1 1 NI 6703 6704 User Manual Chapter 1 Introduction Using PXI with CompactPCl The ability to use PXI compatible products with standard CompactPCI products is an important feature of PXI Specification Revision 2 0 If you use a PXI compatible plug in device in a standard CompactPCI chassis you are unable to use PXI specific functions but you can still use the basic plug in device functions The CompactPCI specification permits vendors to develop sub buses that coexist with the basic PCI interface on the CompactPCI bus Compatible operation is not guaranteed between CompactPCI devices with different sub buses nor be
22. ecifications Physical Dimensions not including connectors NI PCI 6703 6704 sosesc 9 9 X 17 5 cm 3 9 X 6 9 in NI PXI 6703 6704 oseese 10 x 16 cm 3 9 X 6 3 in I O CONNECTION coocococcocnnanconnnoncnncanccnnannnonnnn 68 pin male Maximum Working Voltage Maximum working voltage refers to the signal voltage plus the common mode voltage Channel to earth oocononncnncninnnonnonnnncnncnns 11 V Installation Category I Environmental Operating temperature 0 0 ee 0 to 55 C Storage temperature eee eeeeeeeee 20 to 70 C H midity cenena 5 to 90 RH noncondensing Maximum altitude 2 000 m Pollution Degree indoor use only 2 3 Note Clean the device with a soft non metallic brush Make sure that the device is completely dry and free from contaminants before returning it to service Safety This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use e IEC 61010 1 EN 61010 1 e UL61010 1 e CAN CSA C22 2 No 61010 1 B Note For UL and other safety certifications refer to the product label or visit ni com certification search by model number or product line and click the appropriate link in the Certification column NI 6703 6704 User Manual A 4 ni com Appendix A Specifications Electromagnetic Compatibility Emissions ccccccccccnccnnnnnnnnnnananananononnnnnnnnnns EN 55011 Class A at 10 m FCC P
23. eld use separate shields for the analog and digital halves of the cable Failure to do so results in noise coupling into the analog signals from transient digital signals National Instruments offers cables and accessories for you to prototype your application or to use if you frequently change module interconnections For more specific information about these products refer to the NI catalog at ni com catalog For more information on the connectors used for DAQ devices refer to the KnowledgeBase document Specifications and Manufacturers for Board Mating Connectors at ni com National Instruments Corporation 1 3 NI 6703 6704 User Manual Signal Connections This chapter provides connection instructions for the signals on your NI 6703 6704 device I O connector uN Caution Connections that exceed any of the maximum ratings of input or output signals on the NI 6703 6704 device can damage the device and the computer Maximum input ratings for each signal are given in this chapter under the discussion of that signal National Instruments is not liable for any damages resulting from any incorrect signal connections 1 0 Connector Pin Assignments Figure 2 1 shows the I O connector pin assignments for the NI 6703 6704 devices National Instruments Corporation 2 1 NI 6703 6704 User Manual Chapter 2 Signal Connections NI 6703 6704 User Manual 5V 1 35 PO 0 2 36 Po 1 3 37 P0 2 4 38 PO 3 5
24. er up State ooooococonccnocnconccnnncnnnannnannno Independent user defined values Dynamic Characteristics Settling time including channel latency Accuracy Time 0 1 1 8 ms typ 5 6 ms max 0 01 3 6 ms typ 11 2 ms max 0 001 14 4 ms typ 48 8 ms max Stability Offset temperature coefficient Volta E cion a 5 uV C Current NI 6704 only 10 nA C Gain temperature coefficient Voltage icnn 1 ppm C Current NI 6704 only 2 ppm C NI 6703 6704 User Manual A 2 ni com Appendix A Specifications Digital 1 0 Number of channels oooonccnnncnnccninccnncos 8 Compatibility ooooncninninnnicnnnnnancononncnnos TTL Power on State ooooonncnnnccnoccconcncnncconncnnnn ns Input high impedance Digital logic levels Level Min Max Input low voltage 0 8 V Input high voltage 2 0 V Output low voltage 0 45 V Ior 16 mA Output high voltage 2 4 V log 16 mA Input leakage current 10 uA Bus Interface TIPO Losa Slave Power Requirement 5 V NE 6703 ccoo LIA INE 6104s A na 1 8 A FO Ve a E re eer 70 mA PAE E E E 70 mA Ai Note These power usage figures do not include the power used by external devices that are connected to the fused supply present on the I O connector They assume that all voltage and current outputs are fully loaded National Instruments Corporation A 3 NI 6703 6704 User Manual Appendix A Sp
25. eractive CDs and Certification program information You also can register for instructor led hands on courses at locations around the world System Integration If you have time constraints limited in house technical resources or other project challenges National Instruments Alliance Partner members can help To learn more call your local NI office or visit ni com alliance Declaration of Conformity DoC A DoC is our claim of compliance with the Council of the European Communities using the manufacturer s declaration of conformity This system affords the user protection for electronic compatibility EMC and product safety You can obtain the DoC for your product by visiting ni com certification C 1 NI 6703 6704 User Manual Appendix C Technical Support and Professional Services e Calibration Certificate If your product supports calibration you can obtain the calibration certificate for your product at ni com calibration If you searched ni com and could not find the answers you need contact your local office or NI corporate headquarters Phone numbers for our worldwide offices are listed at the front of this manual You also can visit the Worldwide Offices section of ni com niglobal to access the branch office Web sites which provide up to date contact information support phone numbers email addresses and current events NI 6703 6704 User Manual C 2 ni com Glossary Sy
26. formation in this document is accurate The document has been carefully reviewed for technical accuracy In the event that technical or typographical errors exist National Instruments reserves the right to make changes to subsequent editions of this document without prior notice to holders of this edition The reader should consult National Instruments if errors are suspected In no event shall National Instruments be liable for any damages arising out of or related to this document or the information contained in it EXCEPT AS SPECIFIED HEREIN NATIONAL INSTRUMENTS MAKES NO WARRANTIES EXPRESS OR IMPLIED AND SPECIFICALLY DISCLAIMS ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE CUSTOMER S RIGHT TO RECOVER DAMAGES CAUSED BY FAULT OR NEGLIGENCE ON THE PART OF NATIONAL INSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE CUSTOMER NATIONAL INSTRUMENTS WILL NOT BE LIABLE FOR DAMAGES RESULTING FROM LOSS OF DATA PROFITS USE OF PRODUCTS OR INCIDENTAL OR CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort including negligence Any action against National Instruments must be brought within one year after the cause of action accrues National Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control The warranty provided herein does not cove
27. ge Main A Output 4 Voltage Circuit X 16 Circuit DAC Control Out 16 Bit 4 Lines DAC 16 Current Main Output _ lt 4 Current Circuit X 161 Circuit RAM Data gt nvRAM 5 DAC je 2 3 lt __ Control sa E gt nvSRAM RAM z 5 Addr Ctrl gt lt O e P0 lt 0 7 gt Digital O Q ja gt Jo M a Serial Number EEPROM Temperature 4 Sensor 5 V NS 0 75 A Self Resetting Circuit Breaker TNo current circuits present on NI 6703 Figure 3 1 NI 6703 6704 Block Diagram National Instruments Corporation 3 1 NI 6703 6704 User Manual Chapter 3 Hardware Overview Bus Interface Circuitry The bus interface circuitry monitors the PCI or PXI bus If the bus address matches the NI 6703 6704 device s address the board is enabled and the corresponding register on the NI 6703 6704 is accessed Nonvolatile RAM DAC Control The NI 6703 6704 devices have one 16 bit DAC that is time division multiplexed to create all the output channels Each channel has a track and hold circuit to maintain the channel value between DAC updates On the NI 6703 the DAC is multiplexed to create 16 voltage outputs and two calibration channels On the NI 6704 the DAC is multiplexed to create 16 voltage outputs 16 current outputs and four calibration channels Data is stored in a nonvolatile RAM nvRAM The nvRAM DAC control reads the DAC channel data stored in the nvRAM and updates the DAC periodically The nvRAM DAC c
28. ications Analog Output This appendix lists specifications for the NI 6703 6704 These specifications are valid for an ambient temperature of 0 to 55 C unless otherwise noted Number of voltage channels 16 Number of current channels on the NI 6704 0 eee eeeeeereeeees 16 Resolution 16 bit Recommended warm up time 15 minutes Transfer Characteristics Voltage Output IN binario 1 LSB max DINE uste cialis ista 1 LSB max Monotonicity cococcoccconcnnnconcnnnonnnanonanonncinnos 16 bits guaranteed A tna aE a GR 10 1 V Output COUPpliN8B oooconnnocnnoncccnnancnnnnnnonnos DC Output impedance oconcccoccnononnnoncnononnninnos 0 1 Q max AA O 10 mA max Load capacitance cooooconncocnnoncnnnnnncanonnninnos 10 000 pF max Protection cinta Short circuit to ground Absolute accuracy ooocccococonccnonnconcnonnncnnnono 1 mV max O National Instruments Corporation A 1 NI 6703 6704 User Manual Appendix A Specifications NoEnd heeds 100 uV rms DC to 1 MHz Power on State cocooonnnnnnonoconococcnnnnnnnnonono Independent user defined values Current Output NI 6704 Only A OO 0 1 to 20 2 mA DP tit Source does not require external excitation source Output impedance eee 1 GQ min Output compliance eee eeeeeee 0 to 10 V not clamped Absolute accuracy sceeeeesecesreeereeeeeeee 2 WA max Noli 1 UA ms DC to 1 MHz Protect OW itirnrtiioebed Short circuit and open circuit Pow
29. ion refer to the National Instruments Web site at ni com info and enter the info code feedback O 1998 2005 National Instruments Corporation All rights reserved Important Information Warranty The NI PCI PXI 6703 6704 is warranted against defects in materials and workmanship for a period of one year from the date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace equipment that proves to be defective during the warranty period This warranty includes parts and labor The media on which you receive National Instruments software are warranted not to fail to execute programming instructions due to defects in materials and workmanship for a period of 90 days from date of shipment as evidenced by receipts or other documentation National Instruments will at its option repair or replace software media that do not execute programming instructions if National Instruments receives notice of such defects during the warranty period National Instruments does not warrant that the operation of the software shall be uninterrupted or error free A Return Material Authorization RMA number must be obtained from the factory and clearly marked on the outside of the package before any equipment will be accepted for warranty work National Instruments will pay the shipping costs of returning to the owner parts which are covered by warranty National Instruments believes that the in
30. is manual Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name for example P0 lt 3 0 gt The symbol leads you through nested menu items and dialog box options to a final action The sequence File Page Setup Options directs you to pull down the File menu select the Page Setup item and select Options from the last dialog box This icon denotes a note which alerts you to important information This icon denotes a caution which advises you of precautions to take to avoid injury data loss or a system crash Bold text denotes items that you must select or click in the software such as menu items and dialog box options Bold text also denotes parameter names Italic text denotes variables emphasis a cross reference or an introduction to a key concept This font also denotes text that is a placeholder for a word or value that you must supply National Instruments Corporation vii NI 6703 6704 User Manual About This Manual monospace Text in this font denotes text or characters that you should enter from the keyboard sections of code programming examples and syntax examples This font is also used for the proper names of disk drives paths directories programs subprograms subroutines device names functions operations variables filenames and extensions NI 6703 6704 This phrase refers to any device in the NI 6703 6704 family NI DAQ
31. mbol Prefix Value n nano 1072 u micro 10 6 m milli 10 3 k kilo 103 M mega 106 G giga 10 Symbols i Degrees I A D ANSI AO GND Negative of or minus Ohms Per Percent Plus or minus Positive of or plus Amperes Analog to digital American National Standards Institute Analog output ground signal National Instruments Corporation G 1 NI 6703 6704 User Manual Glossary C C channel D A DAC DAQ DC device DIO NI 6703 6704 User Manual One binary digit either 0 or 1 The group of conductors that interconnect individual circuitry in a computer Typically a bus is the expansion vehicle to which I O or other devices are connected Celsius Pin or wire lead to which you apply or from which you read the analog or digital signal Analog signals can be single ended or differential For digital signals you group channels to form ports Ports usually consist of either four or eight digital channels Digital to analog D A converter Data acquisition 1 Collecting and measuring electrical signals from sensors transducers and test probes or fixtures and inputting them to a computer for processing 2 Collecting and measuring the same kinds of electrical signals with A D and or DIO boards plugged into a computer and possibly generating control signals with D A and or DIO boards in the same computer Direct current A plug in data acquisition board card
32. ontrol also controls the analog demultiplexing circuits to route the DAC output to the correct analog output channel You can choose to save nvRAM data so that the current output values will become the power on states For information about how to set the power on states refer to the Setting the Power On States for Software Timed Digital I O Devices topic in the NI DAQmx Help Digital 1 0 Control The NI 6703 6704 devices have eight digital I O lines configured as one 8 bit port You can configure each line independently as an input or output The DIO lines have 16 mA of sink capability and 16 mA of source capability All digital lines are TTL compatible At power on all digital lines are configured as inputs Temperature Sensor NI 6703 6704 User Manual The onboard temperature sensor measures the air temperature flowing over the board This sensor is positioned near the onboard precision voltage reference which can be affected by extreme temperatures This sensor has a serial digital interface 3 2 ni com Calibration This chapter discusses the calibration options for the NI 6703 6704 Calibration is the process of minimizing output errors by making small circuit adjustments There are two calibration channels used to make adjustments to the voltage channels on the NI 6703 6704 The NI 6704 has two additional channels used to make adjustments to the current channels Internal or Self Calibration The NI 6703 6704 de
33. r damages defects malfunctions or service failures caused by owner s failure to follow the National Instruments installation operation or maintenance instructions owner s modification of the product owner s abuse misuse or negligent acts and power failure or surges fire flood accident actions of third parties or other events outside reasonable control Copyright Under the copyright laws this publication may not be reproduced or transmitted in any form electronic or mechanical including photocopying recording storing in an information retrieval system or translating in whole or in part without the prior written consent of National Instruments Corporation Trademarks National Instruments NI ni com and LabVIEW are trademarks of National Instruments Corporation Refer to the Terms of Use section On ni com legal for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies Members of the National Instruments Alliance Partner Program are business entities independent from National Instruments and have no agency partnership or joint venture relationship with National Instruments Patents For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS
34. tween CompactPCI devices with sub buses and PXI devices The standard implementation for CompactPCI does not include these sub buses The NI PXI 6704 works in any standard CompactPCI chassis adhering to the PICMG CompactPCI 2 0 R3 0 core specification What You Need to Get Started NI 6703 6704 User Manual To set up and use your NI 6703 6704 device you will need the following Q One of the following devices NI PCI 6703 NIPCI 6704 NIPXI 6704 Q One of the following software packages and documentation NI DAQ 7 4 or later LabVIEW for Windows LabWindows CVI for Windows Measurement Studio ANSIC without NI Application Software NET Languages without NI Application Software Q PC with a free PCI slot or PXI chassis with a free slot O 68 pin cable SH68 68 D1 U 68 pin terminal block CB 68 1 2 ni com Chapter 1 Introduction Optional Equipment National Instruments offers a variety of products to use with your NI 6703 6704 including cables connector blocks and other accessories as follows Cables and cable assemblies shielded and ribbon e Connector blocks shielded and unshielded screw terminals For more specific information about these products refer to the NI catalog at ni com catalog Custom Cabling Follow these guidelines if you want to develop your own cable e Route the analog lines separately from the digital lines e When using a cable shi
35. vices perform continuous self calibration In addition to the accessible analog output channels there are internal calibration channels that are scanned and refreshed with all the output channels There are two of these calibration channels for the voltage outputs the voltage offset channel and the voltage gain channel There are also two calibration channels for the current outputs on the NI 6704 the current offset channel and the current gain channel The outputs of these calibration channels are continuously compared to onboard references and the 16 bit DAC offset and gain are adjusted to minimize the errors in the calibration channels Since NI 6703 6704 devices have excellent channel to channel matching of offset and gain errors minimizing the errors in the calibration channels also minimizes the errors for all the voltage and current outputs External Calibration The only calibration adjustment you must make is to adjust the values of the calibration channels to account for time or temperature related drift of the onboard reference These calibration values are loaded into nvRAM at factory calibration You do not need to adjust them for at least one year after the date of factory calibration unless you are operating your device at an extreme temperature To perform an external calibration refer to the NI 6703 6704 Calibration Procedure for NI DAQmx O National Instruments Corporation 4 1 NI 6703 6704 User Manual Specif
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