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DAQ

6527 User Manual

Isolated Digital I/O Interface
for PCI, PXI, and CompactPCI

652

User Manual

December 1999 Edition

Part Number 322164A-01

Summary of Contents for DAQ 6527

Page 1: ...DAQ 6527 User Manual Isolated Digital I O Interface for PCI PXI and CompactPCI 6527 User Manual December 1999 Edition Part Number 322164A 01...

Page 2: ...8 14 24 24 Germany 089 741 31 30 Greece 30 1 42 96 427 Hong Kong 2645 3186 India 91805275406 Israel 03 6120092 Italy 02 413091 Japan 03 5472 2970 Korea 02 596 7456 Mexico D F 5 280 7625 Mexico Monterr...

Page 3: ...e 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 an...

Page 4: ...n Software 1 3 NI DAQ Driver Software 1 4 Optional Equipment 1 5 Custom Cabling 1 6 Safety Information 1 6 Chapter 2 Installation and Configuration Software Installation 2 1 Hardware Installation 2 1...

Page 5: ...nical Support Resources Glossary Index Figures Figure 1 1 The Relationship between the Programming Environment NI DAQ and Your Hardware 1 5 Figure 3 1 6527 Device Connector Pin Assignments 3 2 Figure...

Page 6: ...ation vii 6527 User Manual Tables Table 3 1 Port Functionality for 6527 Devices 3 3 Table 3 2 Signal Descriptions for 6527 Device I O Connectors 3 5 Table 4 1 Digital Filter Characteristics 4 4 Table...

Page 7: ...ed to your computer Use these manuals for hardware installation and configuration instructions specification information about your DAQ hardware and application hints Software documentation Examples o...

Page 8: ...id being electrically shocked italic 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...

Page 9: ...the input lines All input lines can also generate interrupts on rising or falling edges to notify you of changing data The PCI 6527 and PXI 6527 devices are completely jumperless DAQ devices for PCI b...

Page 10: ...he basic PCI interface on the CompactPCI bus Compatible operation is not guaranteed between CompactPCI devices with different sub buses nor between CompactPCI devices with sub buses and PXI The standa...

Page 11: ...re are several options to choose from when programming your National Instruments DAQ hardware You can use LabVIEW LabWindows CVI ComponentWorks or other application development environments with the N...

Page 12: ...acquisition and control application NI DAQ Driver Software The NI DAQ driver software is included with most National Instruments DAQ hardware NI DAQ has an extensive library of functions that you can...

Page 13: ...or blocks and other accessories as follows Cables and cable assemblies shielded and ribbon Connector blocks unshielded and shielded 50 and 100 pin screw terminals For more information about optional e...

Page 14: ...6527 in an explosive atmosphere or where there may be flammable gases or fumes Do not operate the 6527 in a manner not specified in the manual Clean the 6527 and accessories by brushing off light dus...

Page 15: ...nal Instruments application software packages refer to the appropriate release notes After you have installed your application software refer to your NI DAQ release notes and follow the instructions g...

Page 16: ...slot you have chosen 4 Touch a metal part of your chassis to discharge any static electricity that might be on your clothes or body 5 Insert the PXI 6527 in the selected 5 V slot Use the injector ejec...

Page 17: ...description of each signal in this chapter includes information about maximum input ratings National Instruments is not liable for any damages resulting from signal connections that exceed these maxim...

Page 18: ...1 61 10 60 9 59 8 58 7 57 6 56 5 55 4 54 3 53 2 52 1 51 GND GND 5 V 5 V DIG 0 0 DIG 3 0 DIG 0 0 DIG 3 0 DIG 0 1 DIG 3 1 DIG 0 1 DIG 3 1 DIG 0 2 DIG 3 2 DIG 0 2 DIG 3 2 DIG 0 3 DIG 3 3 DIG 0 3 DIG 3 3...

Page 19: ...to individual connectors on the free ends The 100 pin connector that joins the two cables plugs into the I O connector of the 6527 device The other two connectors are 50 pin connectors one of which is...

Page 20: ...2 5 DIG 2 6 DIG 2 7 49 50 47 48 45 46 43 44 41 42 39 40 37 38 35 36 33 34 31 32 29 30 27 28 25 26 23 24 21 22 19 20 17 18 15 16 13 14 11 12 9 10 7 8 5 6 3 4 1 2 5 V DIG 3 0 DIG 3 1 DIG 3 2 DIG 3 3 DI...

Page 21: ...d be positive relative to their corresponding DIG lines A logic high data bit of 1 indicates input voltage and current are present 18 20 22 24 26 28 30 32 DIG 1 7 0 Isolated input port 1 negative term...

Page 22: ...Each of these is the first of two terminals of a bidirectional solid state relay A logic low data bit of 0 closes the relay 84 86 88 90 92 94 96 98 DIG 3 7 0 Isolated output port 3 second terminals Ea...

Page 23: ...must not exceed the isolation voltage limits Exceeding the voltage limits can lead to injury National Instruments is not liable for any damages resulting from signal connections that exceed these limi...

Page 24: ...ws signal connections for a supply and load connected to an isolated input In this figure the 6527 device is being used to sense that a load is being powered The load is connected to the power supply...

Page 25: ...o flow through the LED Assume a maximum drop across the LED of 1 5 V For example for 24 V inputs you could use a resistance of up to 24 V 1 5 V 1 mA 3 k 20 k for RS Figure 3 4 Reducing Input Current f...

Page 26: ...or non TTL levels from 60 to 60 VDC or 30 VAC 42 V peak For isolated power total current on all channels exceeding 1 A or voltages other than 5 V you can provide an external power supply For driving...

Page 27: ...you need but large enough to avoid reducing sink current or consuming unnecessary power For many TTL level applications a value of approximately RL 5 k works well This gives a source current at 2 8 V...

Page 28: ...ypical at 25 C Overcurrent protection limit 260 mA Current limit time 1 s at 7 V Duration of current above operating current 120 mA 1 s max at 7 V Caution Overcurrent protection is for protection agai...

Page 29: ...ration of each functional unit The digital filter and change detection options are also described Functional Overview The block diagram in Figure 4 1 illustrates the key functional components of your...

Page 30: ...fically for data acquisition The PCI MITE is fully compliant with PCI Local Bus Specification 2 0 Digital I O Circuitry You can use your 6527 board as follows Output ports Write Read back Port 0 Isola...

Page 31: ...an help eliminate glitches on input data When used with change notification filtering can also reduce the number of changes for you to examine and process You can configure any of the digital input ch...

Page 32: ...your specified timing interval The input signal from the optocoupler is sampled on each rising edge of the sample clock every 100 ns However a change in the input signal is recognized only if it main...

Page 33: ...he number of reads your software must perform to monitor inputs Instead of reading the inputs continuously your software reacts only to transitions You can monitor changes on selected input lines or o...

Page 34: ...can read the new data value Bit 1 is connected to a limit sensor the 6527 detects rising edges on the sensor which correspond to over limit conditions Bit 0 is connected to a switch Your software can...

Page 35: ...ted digital input channels and 24 solid state relay output channels Isolated Inputs Number of input channels 24 each with its own ground reference isolated from other channels Max input voltage 28 VDC...

Page 36: ...nce 55 pF at 1 V Off leakage current max 200 nA Relay set time max 3 0 ms Relay reset time max 3 0 ms Power on state Relays open Overcurrent protection on outputs typical at 25 C Vrelay 7 V Current li...

Page 37: ...pulse 11 ms duration 30 g peak 30 shocks per face Operational random vibration PXI 6527 5 to 500 Hz 0 31 grms 3 axes Nonoperational random vibration PXI 6527 5 to 500 Hz 2 5 grms 3 axes Note Non oper...

Page 38: ...Qs and their corresponding answers or solutions including special sections devoted to our newest products The database is updated daily in response to new customer experiences and feedback Troubleshoo...

Page 39: ...vide information on local services You can access these Web sites from www ni com worldwide If you have trouble connecting to our Web site please contact your local National Instruments office or the...

Page 40: ...ers Symbols degrees negative of or minus ohms per percent plus or minus positive of or plus 5 V 5 Volts signal A A amperes AC alternating current ANSI American National Standards Institute ASIC Applic...

Page 41: ...he core specification defined by the PCI Industrial Computer Manufacturer s Group PICMG D DAQ data acquisition a system that uses the personal computer to collect measure and generate electrical signa...

Page 42: ...urrent output low isolation signal conditioning to break ground loops and reject high common mode voltages to protect equipment and users and to ensure accurate measurements L LED light emitting diode...

Page 43: ...developed by Intel to replace ISA and EISA port a digital port consisting of four or eight lines of digital input and or output PXI PCI eXtensions for Instrumentation an open specification that build...

Page 44: ...V volts Vcc supply voltage for example the voltage a computer supplies to its plug in devices VDC volts direct current VI virtual instrument a combination of hardware and or software elements typicall...

Page 45: ...tom 1 6 change notification example 4 6 purpose and use 4 5 to 4 6 clocks for digital filtering 4 4 to 4 5 CompactPCI using with PXI 1 2 ComponentWorks software 1 4 configuration 2 2 connector See I O...

Page 46: ...isolated inputs See optically isolated inputs isolation voltages 3 7 L LabVIEW software 1 3 LabWindows CVI software 1 3 M manual See documentation N National Instruments application software 1 3 to 1...

Page 47: ...ard current for high voltages 3 8 to 3 9 sensing DC voltages 3 8 signal connection example 3 8 power connections 3 6 solid state relay outputs 3 9 to 3 12 output channels 3 9 to 3 11 overcurrent prote...

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