ADLINK Technology PXI-7931 User Manual
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ADLINK Technology PXI-7931 User Manual

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PXI-7931
4x8 2-Wire Matrix Module
User's Manual
Manual Rev.:
Rev. 1.1
Date:
February 8, 2020
Part Number:
50-17009-1010

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Summary of Contents for ADLINK Technology PXI-7931

  • Page 1 PXI-7931 4x8 2-Wire Matrix Module User’s Manual Manual Rev.: Rev. 1.1 Date: February 8, 2020 Part Number: 50-17009-1010...
  • Page 2 Copyright © 2004, 2020 ADLINK Technology Inc. All Rights Reserved. Revision History. 1.00 09-07-2004 Initial release 08-02-2020 Remove Star Trigger Out functionality Disclaimer 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.
  • Page 3 Environmental Responsibility ADLINK is committed to fulfill its social responsibility to global environmental preservation through compliance with the European Union's Restriction of Hazardous Substances (RoHS) directive and Waste Electrical and Electronic Equipment (WEEE) directive. Environmental protection is a top priority for ADLINK. We have enforced measures to ensure that our products, manufacturing processes, components, and raw materials have as little impact on the environment as possible.
  • Page 4 Getting Service Customer Satisfaction is top priority for ADLINK Technology Inc. If you need any help or service, please contact us at Ask an Expert: http://askanexpert.adlinktech.com. ADLINK Technology, Inc. Web Site http://www.adlinktech.com Sales & Service Service@adlinktech.com Telephone +886-2-8226-5877 +886-2-8226-5717 Address 9F, No.

  • Page 5: Table Of Contents

    2.4 Installing the switch module into a PXI Platform ....6 Chapter 3 Signal Connection ............ 9 3.1 PXI-7931 Topology ............9 3.2 PXI-7931 Pin assignment & Description ......10 3.3 TB-6231 Terminal Board ..........11 Chapter 4 Operation Theorem ..........21 4.1 Hardware Block Diagram ..........

  • Page 6: How To Use This Manual

    How to Use This Manual This User Manual is designed to assist users in the installation of the ADLINK PXI-7931, 4x8 2-Wire Matrix PXI Switch module. Chapter 1 Introduction Gives an outline and overview of ADLINK switch modules’ features, specifications, and applications.

  • Page 7: Chapter 1 Introduction

    Introduction ADLINK PXI-7931 is a matrix module with 32 cross-point 2-wire relays (DPDT, 2 Form C). The default configuration of the PXI-7931 is a 4-group 2x4 2-wire matrix. With the termination board, TB-6231, users can flexibly choose one of the configurations: one 4x8, two 4x4, one 2x16, two 2x8, and four 2x4. Any contact of the PXI-7931 can connect to other contacts at the same bank, individually, or in combination.

  • Page 8: Applications

    1.2 Applications • Industrial ON/OFF control • External high power relay driving and signal switching • Laboratory automation • Industrial automation • Switch contact status sensing • Limit switch monitoring • Cooperating with other modules such as A/D and D/A peripherals to implement a data acquisition and control system 1.3 Specifications Relay Output...

  • Page 9: Software Support

    Safety functions • Emergency shutdown • Logic level: 3.3 V/TTL (5V tolerant) • Active with logic low (for AUX2/SHDNn pin) • Emergency shutdown sources: AUX2/SHDNn, PXI star trigger input, PXI trigger bus • Watchdog timer • Base clock available: 10MHz, fixed •...
  • Page 10 This page intentionally left blank. 4 • Introduction...

  • Page 11: Chapter 2 Installation

    ADLINK switch module. 2.1 Contents The package consists of the following items in addition to the User Manual: • PXI-7931, 4x8 2-Wire Matrix PXI Switch module • This User Guide • ADLINK Software CD •...

  • Page 12: Mechanical Drawing

    You are now ready to install the PXI-7931 2.3 Mechanical Drawing Figure 1: ADLINK Switch Module ADLINK switch module is packaged in a Eurocard form factor compliant with PXI Specifications measuring 160 mm in length and 100 mm in height (not including connectors).
  • Page 13 Figure 2: Installing the switch module into a PXI platform Installation • 7...
  • Page 14 This page intentionally left blank. 8 • Installation...

  • Page 15: Chapter 3 Signal Connection

    Signal Connection 3.1 PXI-7931 Topology Relays on the PXI-7931 are configured into a 4-group 2x4 2-wire matrix. Users can switch on/off to connect or disconnect any number of rows to any number of columns in the same bank. This configuration can let user simultaneous connects one or more input signals to one or more devices.

  • Page 16: Pxi-7931 Pin Assignment & Description

    3.2 PXI-7931 Pin assignment & Description 22. C8+ 43. C0+ 23. C8- 1. R0+ 44. C0- 24. C9+ 2. R0- 45. C1+ 25. C9- 3. R1+ 46. C1- 26. C10+ 4. R1- 47. C2+ 27. C10- 5. R2+ 48. C2- 28.

  • Page 17: Tb-6231 Terminal Board

    Configurations The TB-6231 is a screw terminal board with D-sub 62-pin female connector. The terminal board can attach to PXI-7931 directly, or through ADLINK’s custom-made high-capacity 62-pin D-sub cable. Users can use the TB-6231 terminal board to make various matrix configurations.
  • Page 18 Figure 4: 2x4 Matrix (I) In this configuration, the TB-6231 would not have any shorted pads. The grid below shows the names used for software configuration with corresponding traces to the TB-6231. 12 • Signal Connection...
  • Page 19 Figure 5: 2x4 Matrix (II) Signal Connection • 13...
  • Page 20 This configuration has two independent 2x8 matrices ranging from Bank0 to Bank1, each has two rows and eight columns. The following diagram illustrates the PXI-7931 with the TB-6231 to produce relative paths. Figure 6: 2x8 Matrix (I) To use a 2x8 matrix, short the following TB-6231 pads.
  • Page 21 Figure 7: 2x8 Matrix (II) 2x16 Matrix This configuration has one independent 2x16 matrix with two rows and 16 columns. The following diagram illustrates the PXI-7931 with the TB-6231 to produce relative paths Signal Connection • 15...
  • Page 22 Figure 8: 2x16 Matrix (I) To use a 2x16 matrix, short the following eight TB-6231 pads. The grid below shows the names used for software configuration with corresponding traces to the TB-6231 Figure 9: 2x16 Matrix (II) 16 • Signal Connection...
  • Page 23 This configuration has two independent 4x4 matrices ranging from Bank0 to Bank1, each with four rows and four columns. The following diagram illustrates the PXI-7931 with the TB-6231 to produce relative paths Figure 10: 4x4 Matrix (I) To use a 2x16 matrix, short the following 16 TB-6231 pads.
  • Page 24 Figure 11: 4x4 Matrix (II) 4x8 Matrix This configuration has one 4x8 matrix, Bank0, with four rows and eight columns. The following diagram illustrates the PXI-7931 with the TB-6231 to produce relative paths 18 • Signal Connection...
  • Page 25 Figure 12: 4x8 Matrix (I) To use a 2x16 matrix, short the following 24 TB-6231 pads. The grid below shows the names used for software configuration with corresponding traces to the TB-6231 Signal Connection • 19...
  • Page 26 Figure 13: 4x8 Matrix (II) 20 • Signal Connection...

  • Page 27: Chapter 4 Operation Theorem

    Operation Theorem 4.1 Hardware Block Diagram The ADLINK PXI Switch Module features an onboard FPGA for relay switching control, trigger control, scanlist storage and sequencing. The PXI triggering and synchronization functions, such as Star Trigger and Trigger Bus are also supported.

  • Page 28: Operation Mode

    If relay contact bouncing is of a concern, users would need to insert software delay. ADLINK recommends the debounce time to be at least 5ms on the PXI-7931. Auto-scan The ADLINK PXI switch module features onboard memory to store user specified scanlist of up to 1024-entry.
  • Page 29 Figure 15 illustrates the available signal sources for the Trigger In signal. Signal names in the solid-line box represent the external (physical) signal on connectors, and signals in the dotted-line box represents switch module’s internal signal. Software Trigger TRG_IN Trigger In Signal Trigger Bus [7…0] AUX[7…0] Star Trigger In...
  • Page 30 Handshaking protocol Figures 17 and 18 depict the relationship between Trigger In, Scanner Advanced, and relay pattern in handshaking mode. In Figure 17 the Scanner Advanced is set to pulsating mode. Trigger In Scanner Advanced attern Pattern #2 Pattern #3 Relay status Operation start Figure 17: Handshaking operation (Scanner Advanced set in pulsating mode)
  • Page 31 5ms for PXI-7931. T is the user specified scan delay time in the scanlist entry, indicating the time between the relay being debounced and the exact moment that a measurement device takes a new measurement.
  • Page 32 Connecting, Trigger and Synchronize with External DMM ® In this example, Agilent 33401A 6-1/2 Digital Multimeter (DMM) is used to demonstrate signal connection for handshaking operation. The DMM provides two terminals on the rear panel for the handshaking operation process, Trig In and VM Comp. The Trig In connects to the Scanner Advanced output on switch module, while the VM Comp to Trigger In.
  • Page 33 Start auto-scan by sending scan start command to the switch module. ADLINK PXI Switch module Scanner Advanced Output (S_ADV) External Trigger Input Trigger Input (Trig In) (TRG_IN) Agilent 33401A Wiring 6-1/2 DMM Measurement Complete (VM Comp) Figure 19: Signal Connection between Switch Module and Agilent DMM For more information on scanlist configuration, scan mode setup, start, and stop functions of the auto-scanning process, please refer to the software programming users’...

  • Page 34: Trigger Bus

    Software Trigger Trigger In Signal Scanner Adv. Signal Trigger Bus[7..0] AUX [3…2] Star Trigger In WDT Overflow SHDNn Figure 20: Available signal sources for Trigger Bus[7..0] 28 • Operation Theorem...

  • Page 35: Auxiliary Digital I/O

    4.5 Auxiliary Digital I/O The eight auxiliary digital I/O lines on ADLINK Switch Modules provide versatility to users’ control applications. Each digital I/O line can be input, output or tri-stated. When in output mode, users can still read back the actual logic- level on the I/O line.

  • Page 36: Hot-Swap

    Note: Microsoft Windows 2000 does not natively support hot-swap however, PXI-7931 can be hot-swapped by manual control via an additional hot-swap driver. For the hot-swap driver on Windows 2000 and other operating systems such as Linux, VxWorks, etc., please contact ADLINK for more information.

  • Page 37: Watchdog Timer

    Star Trigger In Figure 23: Available trigger sources for emergency shutdown The default relay pattern for emergency shutdown is All-Off on PXI-7931; users can change the pattern by Windows API. Upon receiving the emergency shutdown trigger, the Switch Module enters shutdown mode, and the relay pattern is switched to the preset state.
  • Page 38 Int. WDTimer WDT Overflow Trigger Bus Star Trigger In Figure 24:.Available trigger sources for watchdog timer overflow The watchdog timer overflow interval can be programmed through Windows API. After enabling the watchdog timer, users must periodically reset the timer by software command.

  • Page 39: Warranty Policy

    Warranty Policy Thank you for choosing ADLINK. To understand your rights and enjoy all the after-sales services we offer, please read the following carefully: Before using ADLINK’s products please read the user manual and follow the instructions exactly. When sending in damaged products for repair, please attach an RMA application form.

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