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National Instruments SCXI-1162HV User Manual

32-channel isolated ac/dc digital input module
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SCXI-1162HV
User Manual
32-Channel Isolated AC/DC Digital Input Module
August 1994 Edition
Part Number 320790A-01
© Copyright 1994 National Instruments Corporation.
All Rights Reserved.

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  • Page 1 SCXI-1162HV User Manual 32-Channel Isolated AC/DC Digital Input Module August 1994 Edition Part Number 320790A-01 © Copyright 1994 National Instruments Corporation. All Rights Reserved.
  • Page 2 National Instruments Corporate Headquarters 6504 Bridge Point Parkway Austin, TX 78730-5039 (512) 794-0100 Technical support fax: (800) 328-2203 (512) 794-5678 Branch Offices: Australia (03) 879 9422, Austria (0662) 435986, Belgium 02/757.00.20, Canada (Ontario) (519) 622-9310, Canada (Québec) (514) 694-8521, Denmark 45 76 26 00, Finland (90) 527 2321, France (1) 48 14 24 24, Germany 089/741 31 30, Italy 02/48301892, Japan (03) 3788-1921, Netherlands 03480-33466, Norway 32-848400, Spain (91) 640 0085, Sweden 08-730 49 70, Switzerland 056/20 51 51, U.K.
  • Page 3 Limited Warranty The SCXI-1162HV 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.
  • Page 4 Any use or application of National Instruments products for or involving medical or clinical treatment must be performed by properly trained and qualified medical personnel, and all traditional medical safeguards, equipment, and procedures that are appropriate in the particular situation to prevent serious injury or death should always continue to be used when National Instruments products are being used.

  • Page 5: Table Of Contents

    Contents About This Manual ......................vii Organization of This Manual ..................vii Conventions Used in This Manual................vii The National Instruments Documentation Set ..............ix Related Documentation....................ix Customer Communication ....................x Chapter 1 Introduction .........................1-1 About the SCXI-1162HV....................1-1 What You Need to Get Started ..................1-1 Software Programming Choices ...................1-1...
  • Page 6 SCXI-1162HV Parts Locator Diagram .............2-4 Figure 3-1. SCXI-1162HV Front Connector Pin Assignment..........3-3 Figure 3-2. Signal Connection Example................3-6 Figure 3-3. SCXI-1162HV Rear Signal Connector Pin Assignments .........3-7 Tables Table 2-1. Digital Signal Connections, Jumper Settings............2-5 SCXI-1162HV User Manual © National Instruments Corporation...

  • Page 7: About This Manual

    Signal Conditioning eXtensions for Instrumentation (SCXI) Series modules for the National Instruments plug-in DAQ boards. This module switches and controls low-level and power signals. The SCXI-1162HV operates as 32 digital input channels, arranged as eight banks of four channels. Each bank is optically isolated.
  • Page 8 DIO-24 board refers to the National Instruments MC-DIO-24, NB-DIO-24, and PC-DIO-24 digital I/O DAQ boards. DIO-type board DIO-type board refers to National Instruments DAQ boards that have only digital inputs and outputs. These boards include the DIO-24, DIO-32F, and DIO-96 boards unless otherwise noted.

  • Page 9: The National Instruments Documentation Set

    About This Manual The National Instruments Documentation Set The SCXI-1162HV User Manual is one piece of the documentation set for your DAQ or SCXI system. You could have any of several types of manuals, depending on the hardware and software in your system. Use these different types of manuals as follows: •...

  • Page 10: Customer Communication

    About This Manual Customer Communication National Instruments wants to receive your comments on our products and manuals. We are interested in the applications you develop with our products, and we want to help if you have problems with them. To make it easy for you to contact us, this manual contains comment and configuration forms for you to complete.

  • Page 11: Chapter 1 Introduction

    About the SCXI-1162HV The SCXI-1162HV module consists of 32 optically isolated, wide range, AC or DC digital inputs. The SCXI-1162HV is a module for sensing the presence of AC or DC voltages where high common-mode voltages may be present. The SCXI-1162HV works with National Instruments MIO Series boards; the SCXI-1200 module;...

  • Page 12: Labview And Labwindows Application Software

    NI-DAQ Driver Software The NI-DAQ driver software is included at no charge with all National Instruments DAQ hardware. NI-DAQ is not packaged with SCXI or accessory products except for the SCXI-1200. NI-DAQ has an extensive library of functions that you can call from your application programming environment.

  • Page 13: Figure 1-1. The Relationship Between The Programming Environment, Ni-Daq, And Your Hardware

    Toolbox calls can access NI-DAQ software for Macintosh. You can use NB Series DAQ boards and SCXI hardware with NI-DAQ software for Macintosh. The National Instruments SB Series DAQ boards are packaged with NI-DAQ software for Sun, which comes with a language interface for ANSI C.

  • Page 14: Register-Level Programming

    Chapter 1 Register-Level Programming The final option for programming any National Instruments DAQ hardware is to write register- level software. Writing register-level programming software can be very time-consuming and inefficient, and is not recommended for most users. The only users who should consider writing register-level software should meet at least one of the following criteria: •...

  • Page 15: Custom Cables

    • ERNI Components, Inc. (part number 033-273) The mating connector for the SCXI-1162HV front connector is a special 48-pin reversed DIN C female connector. National Instruments uses a polarized and keyed connector to prevent inadvertent upside-down connection to the SCXI-1162HV. The manufacturer part number of the mating connector National Instruments uses is as follows: •...

  • Page 16: Unpacking

    Chapter 1 Unpacking Your SCXI-1162HV module is shipped in an antistatic package to prevent electrostatic damage to the module. Electrostatic discharge can damage several components on the module. To avoid such damage in handling the module, take the following precautions: •...

  • Page 17: Configuration And Installation

    SCXI-1162HV into the SCXI chassis. Module Configuration The SCXI-1162HV has six user-configurable jumpers and one reserved jumper that are shown in the parts locator diagram in Figure 2-1. You use these jumpers to configure the SCXI-1162HV rear connector. Notes: When you are controlling the SCXI-1162HV through the SCXIbus and are not using the rear connector (not cabled directly to a plug-in DAQ board), the positions of the configuration jumpers are irrelevant.

  • Page 18: Configuring The Rear Connector For Parallel Mode

    This mode may be useful when you want to send data from the SCXI-1162HV directly to equipment other than a DAQ board. When the SCXI-1162HV is configured for parallel mode, a DAQ board cabled to the module can only read from that module;...

  • Page 19: Jumper Use

    Figure 2-2. (Jumper W1 is a reserved jumper and should remain unconnected.) If you are controlling the SCXI-1162HV via the SCXIbus and are not using the rear connector, then the positions of these jumpers are irrelevant. Tables 2-1 and 2-2 list the description and configuration of the user-configurable jumpers.

  • Page 20: Figure 2-2. Scxi-1162Hv Parts Locator Diagram

    Configuration and Installation Chapter 2 Figure 2-2. SCXI-1162HV Parts Locator Diagram SCXI-1162HV User Manual © National Instruments Corporation...

  • Page 21: Table 2-1. Digital Signal Connections, Jumper Settings

    Configures rear connector for an MIO board. Includes MIO Series and Lab Series boards, and PC-LPM-16. Factory setting—Configures rear connector for a DIO board. Configures rear connector for an MIO board. Includes MIO series, Lab series, and PC-LPM-16. (continues) © National Instruments Corporation SCXI-1162HV User Manual...

  • Page 22: Hardware Installation

    1. Turn off the computer that contains the DAQ board or disconnect it from your SCXI chassis. 2. Turn off the SCXI chassis. Do not insert the SCXI-1162HV into a chassis that is turned on. SCXI-1162HV User Manual © National Instruments Corporation...

  • Page 23: Software Installation

    Chapter 2 Configuration and Installation 3. Insert the SCXI-1162HV into the board guides. Gently guide the module into the back of the slot until the connectors make good contact. If you have already installed a cable assembly in the rear of the chassis, you must firmly engage the module and cable assembly; however, do not force the module into place.

  • Page 24: Chapter 3 Signal Connections

    Chapter 3 Signal Connections This chapter describes the SCXI-1162HV signal connections via the front and rear connectors, and has specifications and connection instructions for the SCXI-1162HV connector signals. The following warnings contain important safety information concerning hazardous voltages. Warning: Connections that exceed any of the maximum ratings of input signals on the SCXI-1162HV can damage the SCXI-1162HV board and the SCXIbus.
  • Page 25 Chapter 3 Connections, including power signals to ground and vice versa, that exceed any of the maximum signal ratings on the SCXI-1162HV can damage any or all of the boards connected to the SCXI chassis, the host computer, and the SCXI-1162HV module.

  • Page 26: Front Connector

    Chapter 3 Signal Connections Front Connector Figure 3-1 shows the pin assignments for the SCXI-1162HV front connector. Signal Column Signal Number Name Name In 0 In 1 In 2 In 3 In 4 In 5 In 6 In 7 In 8...

  • Page 27: Front Connector Signal Descriptions

    When a positive or negative DC voltage with a magnitude of at least 2 V is referenced to the GND of a bank and is applied to an input of that bank, the SCXI-1162HV registers a logic high for that input. Current-limiting circuitry limits the input current to 1.5 mA for input voltages up to 240 VDC referenced to the GND signal.

  • Page 28: Sensing Ac Voltages

    GND signals. Signal Connection Example In Figure 3-2, one channel of the SCXI-1162HV is being used to sense that a load is being powered. The load is connected to a power supply by means of a switch. This power supply can be AC or DC and can be any voltage within the SCXI-1162HV range.

  • Page 29: Terminal Block

    SCXI-1162HV. Rear Signal Connector Note: If you are using the SCXI-1162HV with a National Instruments DAQ board and cable assembly, you do not need to read the remainder of this chapter. If you are using the SCXI-1180 feedthrough panel, the SCXI-1343 rear screw terminal adapter, or the SCXI-1351 one-slot cable extender with the SCXI-1162HV, read this section.

  • Page 30: Figure 3-3. Scxi-1162Hv Rear Signal Connector Pin Assignments

    47 48 Out 0 47 48 (DIO) SERDATOUT DIGGND (DIO) 49 50 49 50 A. Jumper W2 in SER Position B. Jumper W2 in PAR Position Figure 3-3. SCXI-1162HV Rear Signal Connector Pin Assignments © National Instruments Corporation SCXI-1162HV User Manual...

  • Page 31: Rear Signal Connector Signal Descriptions, Serial Configuration

    MIO boards and jumper W3 selects it. * Indicates active low. All other pins are not connected. See Chapter 2, Timing, of the SCXI-1162HV Register-Level Programmer Manual for information on serial communication and programming. SCXI-1162HV User Manual © National Instruments Corporation...

  • Page 32: Rear Signal Connector Signal Descriptions, Parallel Configuration

    The following specifications apply to the digital output lines (referenced to DIGGND): • output logic high voltage 3.7 V min at 4 mA max • output logic low voltage 0.4 V max at 4 mA max © National Instruments Corporation SCXI-1162HV User Manual...

  • Page 33: Appendix A Specifications

    Appendix A Specifications This appendix lists the specifications of the SCXI-1162HV. These specifications are typical at 25° C unless otherwise noted. Number of channels ............. 32 organized into 8 optically isolated banks of 4 inputs each Digital logic levels ...........

  • Page 34: Appendix B Customer Communication

    Filling out a copy of the Technical Support Form before contacting National Instruments helps us help you better and faster. National Instruments provides comprehensive technical assistance around the world. In the U.S. and Canada, applications engineers are available Monday through Friday from 8:00 a.m. to 6:00 p.m.
  • Page 35 National Instruments for technical support helps our applications engineers answer your questions more efficiently. If you are using any National Instruments hardware or software products related to this problem, include the configuration forms from their user manuals. Include additional pages if necessary.
  • Page 36 Completing this form accurately before contacting National Instruments for technical support helps our applications engineers answer your questions more efficiently.
  • Page 37 Register-Level Programmer Manual Request Form National Instruments offers a register-level programmer manual at no charge to customers who are not using National Instruments software. Title: SCXI-1162HV Register-Level Programmer Manual Part Number: 340735A-01 Please indicate your reasons for obtaining the register-level programmer manual. Check all that apply.
  • Page 38 Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs. Title: SCXI-1162HV User Manual Edition Date: August 1994 Part Number: 320790A-01 Please comment on the completeness, clarity, and organization of the manual.

  • Page 39: Glossary

    Input bit INTR* Interrupt signal ksamples 1,000 samples least significant bit meters megabytes of memory most significant bit © National Instruments Corporation Glossary-1 SCXI-1162HV User Manual...
  • Page 40 Vrms volts, root mean square watts SCXI-1162HV User Manual Glossary-2 © National Instruments Corporation...

  • Page 41: Index

    2-6 to 2-7 conventions used in manual, vii SCXI-1326 terminal block, 3-6 to 3-7 customer communication, x software installation, 2-7 National Instruments documentation unpacking the SCXI-1162HV, 1-6 set, ix organization of this manual, vii related documentation, ix © National Instruments Corporation Index-1...
  • Page 42 3-6 to 3-9 LabVIEW and LabWindows software, configuration, 3-6 1-2 to 1-3 parallel mode, 2-2 NI-DAQ driver software, 1-2 to 1-3 serial mode, 2-2 register-level programming, 1-4 pin assignments (illustration), 3-7 SCXI-1162HV User Manual Index-2 © National Instruments Corporation...
  • Page 43 Index specifications environment, A-1 physical, A-1 technical support, B-1 terminal block, 3-6 unpacking the SCXI-1162HV, 1-6 © National Instruments Corporation Index-3 SCXI-1162HV User Manual...

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