ADLINK Technology DAQ/PXI-20 Series Manual de usuario

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Advance Technologies; Automate the World.

Manual Rev. 2.00

Revision Date: April 20, 2006

Part No: 50-11020-1030

DAQ/PXI-201x/200x

4-CH, Simultaneous, High Performance

Multi-Function Data Acquisition Card

User’s Manual

The information in this document is subject to change without prior

notice in order to improve reliability, design, and function and does

not represent a commitment on the part of the manufacturer.

In no event will the manufacturer be liable for direct, indirect, spe-

cial, incidental, or consequential damages arising out of the use or

inability to use the product or documentation, even if advised of

the possibility of such damages.

This document contains proprietary information protected by copy-

right. All rights are reserved. No part of this manual may be repro-

duced by any mechanical, electronic, or other means in any form

without prior written permission of the manufacturer.

Trademarks

Product names mentioned herein are used for identification pur-

poses only and may be trademarks and/or registered trademarks

of their respective companies.

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Please contact us should you require any service or assistance.

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Web Site: http://www.adlinktech.com

Sales & Service: [email protected]

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FAX: +886-2-82265717

Address: 9F, No. 166, Jian Yi Road, Chungho City,

Taipei, 235 Taiwan

Please email or FAX this completed service form for prompt and

satisfactory service.

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Table of Contents i

Table of Contents

1 Introduction ........................................................................ 1

1.1 Features............................................................................... 2

1.2 Applications ......................................................................... 3

1.3 Specifications....................................................................... 4

1.4 Software Support ............................................................... 13

Programming Library .................................................... 13

DAQ-LVIEW PnP: LabVIEW® Driver ........................... 13

D2K-OCX: ActiveX Controls ......................................... 14

2 Installation ........................................................................ 15

2.1 Contents of Package ......................................................... 15

2.2 Unpacking.......................................................................... 15

2.3 DAQ/PXI-20XX Layout ...................................................... 17

2.4 PCI Configuration .............................................................. 18

3 Signal Connections.......................................................... 19

3.1 Connectors Pin Assignment .............................................. 19

3.2 Analog Input Signal Connection ........................................ 24

Types of signal sources ................................................ 24

Single-Ended Measurements ....................................... 24

Differential Measurements ............................................ 25

4 Operation Theory ............................................................. 27

4.1 A/D Conversion.................................................................. 27

DAQ/PXI-2010 AI Data Format ..................................... 28

DAQ/PXI-2005/2006/2016 AI Data Format ................... 30

Software conversion with polling data transfer acqui-sition

mode (Software Polling) ..................................... 30

Programmable scan acquisition mode .......................... 31

Trigger Modes ............................................................... 33

4.2 D/A Conversion.................................................................. 42

Software Update ........................................................... 43

Timed Waveform Generation ........................................ 44

Trigger Modes ............................................................... 45

4.3 Digital I/O ........................................................................... 51

4.4 General Purpose Timer/Counter Operation....................... 52

Timer/Counter functions basics .................................... 52

General Purpose Timer/Counter modes ....................... 53

ii Table of Contents

4.5 Trigger Sources ................................................................. 57

Software-Trigger ........................................................... 57

External Analog Trigger ................................................ 57

4.6 User-controllable Timing Signals ....................................... 61

DAQ timing signals ....................................................... 63

Auxiliary Function Inputs (AFI) ...................................... 64

System Synchronization Interface ................................ 67

AI_Trig_Out and AO_Trig_Out ..................................... 69

5 Calibration ......................................................................... 71

5.1 Loading Calibration Constants........................................... 71

5.2 Auto-calibration .................................................................. 71

5.3 Saving Calibration Constants............................................. 72

List of Tables iii

List of Tables

Table 1-1: -3dB small signal bandwidth ..................................... 5

Table 1-2: System Noise ........................................................... 5

Table 1-3: CMRR: (DC to 60Hz) ................................................ 7

Table 3-1: 68-pin VHDCI-type pin assignment ........................ 19

Table 3-2: 68-pin VHDCI-type Connector Legend ................... 20

Table 3-3: SSI connector (JP3) pin assignment for DAQ-20XX 22

Table 3-4: Legend of SSI connector ........................................ 22

Table 4-1: Bipolar analog input range and the output digital code on

DAQ/PXI-2010 (Note that the last 2 digital codes are

SDI<1..0>) .............................................................. 29

Table 4-2: Unipolar analog input range and the output digital code

on DAQ/PXI-2010 (Note that the last 2 digital codes are

SDI<1..0>) .............................................................. 29

Table 4-3: Bipolar analog input range and the output digital code on

the DAQ/PXI-2005/2006/2016 ................................ 30

Table 4-4: Unipolar analog input range and the output digital code

on the DAQ/PXI-2005/2006/2016 ........................... 30

Table 4-5: Bipolar output code table (Vref=10V if internal reference

is selected) ............................................................. 43

Table 4-6: Unipolar output code table (Vref=10V if internal reference

is selected) ............................................................. 43

Table 4-7: Analog trigger SRC1 (EXTATRIG) ideal transfer charac-

teristic ..................................................................... 58

Table 4-8: Summary of user-controllable timing signals and the cor-

responding functionalities ....................................... 62

Table 4-9: Auxiliary function input signals and the corresponding

functionalities .......................................................... 65

Table 4-10: Summary of SSI timing signals and the corresponding

functionalities as the master or slave ..................... 67

iv List of Figures

List of Figures

Figure 2-1: PCB Layout of the DAQ-20XX................................. 17

Figure 2-2: PCB Layout of the PXI-20XX................................... 17

Figure 3-1: Single-Ended connections ....................................... 25

Figure 3-2: Ground-referenced source and differential input ..... 25

Figure 3-3: Floating source and differential input....................... 26

Figure 4-1: Synchronous Digital Inputs Block Diagram.............. 28

Figure 4-2: Synchronous Digital Inputs timing ........................... 28

Figure 4-3: Scan Timing............................................................. 32

Figure 4-4: Pre-trigger (trigger occurs after at least M scans ac-

quired) ..................................................................... 34

Figure 4-5: Pre-trigger scan acquisition (trigger occurs when a con-

version is in progress).............................................. 34

Figure 4-6: Pre-trigger with M_enable = 0 (Trigger occurs before M

scans) ...................................................................... 35

Figure 4-7: Pre-trigger with M_enable = 1 ................................. 35

Figure 4-8: Middle trigger with M_enable = 1............................. 36

Figure 4-9: Middle trigger (trigger occurs when a scan is in progress)

Figure 4-10: Post trigger .............................................................. 38

Figure 4-11: Delay trigger ............................................................ 39

Figure 4-12: Post trigger with re-trigger ....................................... 40

Figure 4-13: Scatter/gather DMA for data transfer....................... 42

Figure 4-14: Typical D/A timing of waveform generation (Assuming

the data in the data buffer are 2V, 4V, -4V, 0V)....... 45

Figure 4-15: Post trigger waveform generation (Assuming the data in

the data buffer are 2V, 4V, 6V, 3V, 0V, -4V, -2V, 4V) 46

Figure 4-16: Delay trigger waveform generation (Assuming the data in

the data buffer are 2V, 4V, 6V, 3V, 0V, -4V, -2V, 4V) 47

Figure 4-17: Re-triggered waveform generation (Assuming the data in

the data buffer are 2V, 4V, 2V, 0V).......................... 47

Figure 4-18: Finite iterative waveform generation with Post-trigger and

DLY2_Counter = 0 (Assuming the data in the data buffer

are 2V, 4V, 2V, 0V).................................................. 48

Figure 4-19: Infinite iterative waveform generation with Post-trigger

and DLY2_Counter = 0 (Assuming the data in the data

buffer are 2V, 4V, 2V, 0V)........................................ 49

Figure 4-20: Stop mode I (Assuming the data in the data buffer are 2V,

4V, 2V, 0V) .............................................................. 50

List of Figures v

Figure 4-21: Stop mode II ............................................................ 51

Figure 4-22: Stop mode III ........................................................... 51

Figure 4-23: Mode 1 Operation.................................................... 53

Figure 4-24: Mode 2 Operation.................................................... 54

Figure 4-25: Mode 3 Operation.................................................... 54

Figure 4-26: Mode 4 Operation.................................................... 55

Figure 4-27: Mode 5 Operation.................................................... 55

Figure 4-28: Mode 6 Operation.................................................... 56

Figure 4-29: Mode 7 Operation.................................................... 56

Figure 4-30: Mode 8 Operation.................................................... 57

Figure 4-31: Analog trigger block diagram................................... 58

Figure 4-32: Below-Low analog trigger condition......................... 59

Figure 4-33: Above-High analog trigger condition ....................... 59

Figure 4-34: Inside-Region analog trigger condition .................... 60

Figure 4-35: High-Hysteresis analog trigger condition................. 60

Figure 4-36: Low-Hysteresis analog trigger condition.................. 61

Figure 4-37: External digital trigger.............................................. 61

Figure 4-38: DAQ signals routing................................................. 62

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