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National Instruments SCXI-1129 User Manual

National Instruments SCXI-1129 User Manual

256 crosspoint high-density matrix
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  • Page 1 National Instruments SCXI-1129 Manual Get Pricing & Availability at ApexWaves.com Call Today: 1-800-915-6216 Email: sales@apexwaves.com https://www.apexwaves.com/modular-systems/national-instruments/scxi/SCXI-1129...
  • Page 2 SCXI ™ SCXI-1129 User Manual 256 Crosspoint High-Density Matrix SCXI-1129 User Manual February 2001 Edition Part Number 322740A-01...
  • Page 3 Sweden 08 587 895 00, Switzerland 056 200 51 51, Taiwan 02 2528 7227, United Kingdom 01635 523545 For further support information, see the Technical Support Resources appendix. To comment on the documentation, send e-mail to techpubs@ni.com © Copyright 2001 National Instruments Corporation. All rights reserved.
  • Page 4 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.
  • Page 5 Classification requirements are the same for the Federal Communications Commission (FCC) and the Canadian Department of Communications (DOC). Changes or modifications not expressly approved by National Instruments could void the user’s authority to operate the equipment under the FCC Rules.
  • Page 6 Canadian Department of Communications This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada. European Union - Compliance to EEC Directives Readers in the EU/EEC/EEA must refer to the Manufacturer's Declaration of Conformity (DoC) for information** pertaining to the CE Mark compliance scheme.
  • Page 7 Conventions The following conventions are used in this manual: » 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.

  • Page 8: Table Of Contents

    Unpacking ........................1-5 Installing the Hardware....................1-5 Installing the SCXI-1129 Module into the SCXI Chassis.......1-5 Connecting the SCXI-1129 to the DMM in a Single Chassis System ....1-7 Single 4-Slot Chassis Configuration ..........1-8 Single 12-Slot Chassis Configuration ..........1-9 Connecting the SCXI-1129 to the DMM in a Multichassis System ....1-10 4-Slot and 4-Slot Multichassis Configuration........1-10...
  • Page 9 Wire ORed ..................2-25 Dummy Entries................. 2-25 Software Scanning ..................2-26 Independent Switch Control................2-26 Appendix A Specifications Appendix B Accessories Appendix C SCXI-1129 Block Diagram Appendix D SCXI-1129 Front Connector Appendix E Common Questions Appendix F Technical Support Resources Glossary Index...

  • Page 10: Installing And Configuring The Scxi-1129

    The SCXI-1129 is a 256 crosspoint high-density matrix module. It provides up to a 4 × 64, 2-wire switch matrix configuration on an SCXI platform. The SCXI-1129 can also operate as four 4 × 16, 2-wire matrixes; two 4 × 32, 2-wire matrixes; or two 8 × 16, 2-wire matrixes.

  • Page 11: Installing The Software

    Chapter 2, Using the SCXI-1129. The SCXI-1129 is designed to work well at both low and high voltages. For low-voltage measurements, the SCXI-1129 uses relays with < 9 µV thermal offset to ensure accurate measurements. For details, refer to Appendix A, Specifications.

  • Page 12: Safety Information

    Development Environments panel provides you with the following choices: • If you click the Advanced button on this panel, you can custom install National Instruments drivers such as NI-DAQ, NI-IVI, and NI-VISA. • If you do not want to install certain drivers, click Advanced and uncheck the driver(s) you do not want installed.
  • Page 13 Installing and Configuring the SCXI-1129 power the device off and do not use it until service-trained personnel can check its safety. If necessary, return the device to National Instruments for service and repair to ensure that its safety is not compromised.

  • Page 14: Unpacking

    Do not install a damaged module into your computer. Store your SCXI-1129 module in the antistatic envelope when not in use. Installing the Hardware The following section describes how to install your SCXI-1129 for use with SCXI chassis, National Instruments data acquisition (DAQ) devices, and National Instruments digital multimeters (DMMs).
  • Page 15 When installing the SCXI-1129 module in an SCXI chassis, the rightmost slot Note (when the chassis is viewed from the front) must be filled first, then fill the slot to the left with the next SCXI-1129. You can load other SCXI modules from left to right. SCXI-1129 User Manual ni.com...

  • Page 16: Connecting The Scxi-1129 To The Dmm In A Single Chassis System

    3. Secure all the SCXI-1129 modules to the SCXI chassis using both thumbscrews. To configure your SCXI-1129, follow the procedures for your system in the sections that follow. Connecting the SCXI-1129 to the DMM in a Single Chassis System You need the following items for this installation: •...

  • Page 17: Single 4-Slot Chassis Configuration

    Connect the HV8-BAN4 cable from the DMM to the HVAB connector behind slot 4. Connect the SH9MD-9MD cable from the DMM to the AUX IN connector. You can install any additional SCXI-1129 modules in any slot that has an HVAB-backplane adapter behind it. SCXI-1129 User Manual ni.com...

  • Page 18: Single 12-Slot Chassis Configuration

    Installing and Configuring the SCXI-1129 Note In this configuration, a SCXI-1129 is required in slot 4 to establish communication with the chassis. If slot 4 is empty, the system will not operate. It is this module that you must specify in Measurement & Automation Explorer (MAX) as the cabled module to the DMM.

  • Page 19: Connecting The Scxi-1129 To The Dmm In A Multichassis System

    Do not connect the SH9MD-9MD cable to the AUX IN connector behind slot 4 on the 2-slot HVAB-backplane adapter. An SCXI-1129 is required in slot 12 to establish communications with the chassis. If slot 12 is empty, the system will not operate. It is this module that you must specify in MAX as the cabled module to the DMM.
  • Page 20 Chapter 1 Installing and Configuring the SCXI-1129 To make connections in the 4-slot and 4-slot multichassis configuration, refer to Figure 1-4 while completing the following steps: AB0+ AB0– AB2+ AB2– 1 2-Slot HVAB Backplane Adapter 5 NI 4060 for PCI...

  • Page 21: 4-Slot And 12-Slot Multichassis Configuration

    AUX IN connector of the next chassis. Repeat steps 1 through 3 for each additional chassis. An SCXI-1129 is required in slot 4 to establish communications with the chassis. Notes If slot 4 is empty, the system will not operate. It is this module that you must specify in MAX as the cabled module to the DMM.
  • Page 22 Chapter 1 Installing and Configuring the SCXI-1129 To make connections in the 4-slot and 12-slot multichassis configuration, refer to Figure 1-5 while completing the following steps: AB0+ AB0– AB2+ AB2– 1 2-Slot HVAB-Backplane Adapter 5 SH9MD-9MD Cable 9 SH9MD-9MD Cable...

  • Page 23: 12-Slot And 12-Slot Multichassis Configuration

    12-slot chassis. An SCXI-1129 is required in slot 4 of the 4-slot chassis and slot 12 of the 12-slot chassis to establish communications with all the chassis in the system. If slot 4 is empty in the 4-slot chassis or slot 12 is empty in the 12-slot chassis, the chassis will not operate.
  • Page 24 Chapter 1 Installing and Configuring the SCXI-1129 To make connections in the 12-slot and 12-slot multichassis configuration, refer to Figure 1-6 while completing the following steps: AB0+ AB0– AB2+ AB2– 1 8-Slot HVAB-Backplane Adapter 5 1-Slot HVAB-Backplane Adapter 9 HV8-HV8 Cable...

  • Page 25: Connecting The Scxi-1129 To The Dmm In A Pxi-1010 Chassis

    Do not connect the SH9MD-9MD cable to the 2-slot HVAB-backplane adapter. An SCXI-1129 is required in slot 12 of each 12-slot chassis to establish communications with all the chassis in the system. If slot 12 is empty, the chassis will not operate. It is this module that you must specify in MAX as the cabled module to the DMM.

  • Page 26: Dmm In Pxi Slot 8 Configuration

    SCXI slot 4. Connect the SH9MD-9MD cable from the DMM to the AUX IN connector. You can install any additional SCXI-1129 modules in any slot that has an HVAB-backplane adapter behind it. DMM in PXI Slot 8 Configuration To install your DMM in PXI slot 8, follow these steps: Install your DMM in PXI slot 8.

  • Page 27: Dmm In Pxi Slots 1 Through 3 Configuration

    SCXI slot 4. Connect the SH9MD-9MD cable from the DMM to the AUX IN connector. You can install any additional SCXI-1129 modules in any slot that has an HVAB-backplane adapter behind it. DMM in PXI Slot 4 Configuration To install your DMM in slot 4 follow these steps: Install your DMM in slot 4.

  • Page 28: Accessing The Scxi-1129 Through Other Scxi Modules Using A Daq Device

    • 1/8 in. flathead screwdriver • At least one other SCXI module other than the SCXI-1129, installed in the chassis Consult the documentation for your SCXI chassis and other SCXI modules for additional instructions and warnings. You should have already installed any non-SCXI-1129 modules according to their installation instructions.
  • Page 29 Chapter 1 Installing and Configuring the SCXI-1129 To set up the SCXI-1129 module to be accessed by a DAQ device through another SCXI module, refer to Figure 1-7 while completing the following steps: 1 Non-SCXI-1129 Module 4 2-Slot HVAB-Backplane 6 Digital Signals Connector...

  • Page 30: Using A Daq Device On A Pxi-1010 Chassis

    Power off the power to the PXI and SCXI chassis. Install your DAQ device in PXI slot 8. Installation in this slot allows the DAQ device to directly control the SCXI-1129 without the need for additional cabling. Power on the power to both the PXI and SCXI chassis.

  • Page 31: Configuring And Self-Test

    Install the SCXI-1129s in the chassis and install the HVAB as described in one of the Connecting the SCXI-1129 backplane sections. To connect an SCXI-1129 to an external DMM device, you need two cables—the HV8-BAN4 or BAN2-WIRE cable, and a cable to connect the handshaking lines from the SCXI-1129 to the DMM.

  • Page 32: Auto-Detecting Modules

    SCXI-2000 or if your module supports Auto Cable Detect, and click Finish. Note The SCXI-1129 has Auto Cable Detect, which means that just by connecting the communications cable to the SCXI-1129, the software can identify that the SCXI-1129 is the cabled module.

  • Page 33: Manually Adding Modules

    Chapter 1 Installing and Configuring the SCXI-1129 Manually Adding Modules If you selected not to auto-detect your SCXI modules, you must add each of your modules separately. Click Finish in the SCXI Auto-Detect window. Expand Devices and Interfaces. You will see the chassis you selected in the list.

  • Page 34: Using The Scxi-1129

    At each intersection of a row and column, there is a switch. When the switch is closed, the row is connected to the column. The SCXI-1129 is a 2-wire matrix, as shown in Figure 2-1. Matrixes are useful in applications where you desire maximum switching flexibility.

  • Page 35: Configurations

    It is also possible for several outputs to drive a single input. You can use the SCXI-1129 with one of six different terminal blocks to make various matrix configuration, as shown in Table 2-1. Terminals provide the means of connection to labeled row and column terminals.
  • Page 36 Chapter 2 Using the SCXI-1129 1 Ground Reference for Trigger Signals 5 Cable Strain-Relief 2 Column Expansion Bus 6 External Trigger Input (EXTRIGIN) 3 Column Connections 7 Scanner Advance Output (SCAN ADV) 4 Row Connections 8 Safety Ground Lug Figure 2-2. Terminal Block Example (SCXI-1333) ©...

  • Page 37: 16 Matrix Configuration

    Using the SCXI-1129 4 × × × × 16 Matrix Configuration Figure 2-3 shows an example of the SCXI-1129 configured as a 4 × 16, 2-wire matrix. In the 4 × 16 matrix configuration, you have independent access to four, 4 × 16 matrixes. The diagram shows connections for a general test setup that connects both instruments and devices under test (DUTs) to columns while using rows as connection points.
  • Page 38 Chapter 2 Using the SCXI-1129 16 columns Connection Relays B1C0–B1C15 4 x 16 Matrix 4 rows B1R0–B1R3 Relays 16 columns High- Analog Bus Relays B2C0–B2C15 Voltage Rear 4 x 16 Matrix 4 rows Signal B2R0–B2R3 Relays Connector 16 columns B3C0–B3C15...

  • Page 39: 32 Matrix Configuration

    Chapter 2 Using the SCXI-1129 4 × × × × 32 Matrix Configuration The 4 × 32 matrix configuration gives you control of two independent, 4 × 32 matrixes. You can make connection to the rows using either the HVAB or the terminal block. Columns are accessed through the terminal block.
  • Page 40 Chapter 2 Using the SCXI-1129 16 columns Connection Relays B1C0–B1C15 B1C16–B1C31 4 x 16 Matrix 4 rows B1R0–B1R3 Relays 16 columns High- Analog Bus Relays Voltage Rear 4 x 16 Matrix 4 rows Signal Relays Connector 16 columns Com0 B2C0–B2C15...

  • Page 41: 16 Matrix Configuration

    Chapter 2 Using the SCXI-1129 8 × × × × 16 Matrix Configuration The 8 × 16 matrix configuration gives you control of two independent, 8 × 16 matrixes. You can access the HVAB at up to four rows at a time. To connect signals to the HVAB, connect the chosen rows to COM0–COM3,...
  • Page 42 Chapter 2 Using the SCXI-1129 16 columns Connection Relays B1C0–B1C15 4 x 16 Matrix 4 rows B1R0–B1R3 Relays 16 columns High- Analog Bus Relays Voltage Rear 4 x 16 Matrix 4 rows Signal B2R0-B2R3 Relays Connector 16 columns Com0 Digital Com1 Comm.

  • Page 43: 64 Matrix Configuration

    Chapter 2 Using the SCXI-1129 4 × × × × 64 Matrix Configuration The 4 × 64 matrix configuration gives you control over the entire switch matrix with no subdivisions. All 256 crosspoints are accessible as a single block. You can now make connections using either the HVAB or the terminal block.
  • Page 44 Chapter 2 Using the SCXI-1129 16 columns Connection Relays C0–C15 4 x 16 Matrix 4 rows R0–R3 Relays 16 columns High- Analog Bus Relays C16–C31 Voltage Rear 4 x 16 Matrix 4 rows Signal Relays Connector 16 columns C32–C47 Com0...

  • Page 45: 32 Matrix Configuration

    Chapter 2 Using the SCXI-1129 8 × × × × 32 Matrix Configuration The 8 × 32 matrix configuration gives you control over the entire switch matrix with no subdivisions. All 256 crosspoints are treated as a contiguous block. This configuration provides an easy way to create a full 256 crosspoint matrix for applications requiring more than four rows—but...
  • Page 46 Chapter 2 Using the SCXI-1129 16 columns Connection Relays C0–C15 4 x 16 Matrix 4 rows R0–R3 Relays 16 columns High- Analog Bus Relays C16–C31 Voltage Rear 4 x 16 Matrix 4 rows Signal Relays Connector 16 columns Com0 Digital Com1 Comm.

  • Page 47: 16 Matrix Configuration

    This configuration provides an easy way to create a full 256 crosspoint matrix for applications requiring equal rows and columns. Figure 2-9 is a 1-wire representation of the SCXI-1129 configured as a 16 × 16 matrix. The diagram shows connections for a general test setup that connects several instruments to one complex DUT.
  • Page 48 Chapter 2 Using the SCXI-1129 16 columns Connection Relays C0–C15 4 x 16 Matrix 4 rows R0–R3 Relays 16 columns High- Analog Bus Relays Voltage Rear 4 x 16 Matrix 4 rows Signal R4–R7 Relays Connector 16 columns Com0 Digital Com1 Comm.

  • Page 49: Matrix Expansion

    Chapter 2 Using the SCXI-1129 Matrix Expansion In addition to the configurations discussed above, it is possible to combine modules with the same configuration to create much larger matrixes. You can expand matrix modules through the terminal blocks by connecting columns and/or rows.
  • Page 50 Chapter 2 Using the SCXI-1129 The matrix expansion methods available for the different terminal blocks are shown in Table 2-2. Table 2-2. Terminal Block Matrix Expansion Terminal Block Expansion Type SCXI-1333 (4 × 16) Column connection SCXI-1337 (8 × 16) None SCXI-1339 (4 ×...
  • Page 51 Chapter 2 Using the SCXI-1129 1 Matrix Expansion Plugs 3 Thumbscrews 2 SCXI-1333 Terminal Block 4 SCXI-1129 Front Connector Figure 2-12. Example of Daisy-Chained Modules SCXI-1129 User Manual 2-18 ni.com...
  • Page 52 Chapter 2 Using the SCXI-1129 The SCXI-1334 and SCXI-1335 terminal blocks also have the ability to expand columns by connecting rows, as shown in Figure 2-13. With these two modes of expansion, you can create very large matrixes. 1 SCXI-1335 1...

  • Page 53: Hardware And Software Scanning

    Figure 2-13 shows four SCXI-1335s connected to form a 16 × 64 matrix. Hardware and Software Scanning The SCXI-1129 provides a very flexible scanning architecture. You have individual control over every crosspoint and configuration relay, which means you can: •...

  • Page 54: Hardware-Timed Scanning

    Hardware-Timed Scanning In hardware-timed scanning, the software downloads a list of commands to the SCXI-1129. The software then starts executing the scan list. The scan list executes until reaching a wait for a trigger command. When the SCXI-1129 receives a trigger, the scan list continues to advance until receiving another wait for trigger command.

  • Page 55: Hardware-Timed Scanning Using External Instruments

    Trig 7 From DMM AUX Figure 2-14. Cabling a DMM and Using Trig0–Trig7 to Bus the VMC/EXTRIG_1 to a Non-Cabled Module The SCXI-1129 can accept trigger signals from any of the following sources: • Rear signal connector • Front connector •...

  • Page 56: Synchronous Scanning

    SCXI-1129 to accept a VMC signal with either rising or falling edges. If you have more that one SCXI-1129 module, it is not necessary to cable the VMC to each module. You can bus the VMC onto the SCXI backplane (Trig 0 to Trig 7) allowing other modules to be triggered as shown in Figure 2-15.

  • Page 57: Multimodule Scanning

    Chapter 2 Using the SCXI-1129 For example, you can connect the VMC of the DMM to the SCXI-1129 through a spring terminal labeled EXTRIGIN on the SCXI-1333 terminal block. You must also connect the SCANADVD signal from the SCXI-1333 terminal block to your DMM external trigger input. Refer to Figure 2-2.

  • Page 58: Wire Ored

    Chapter 2 Using the SCXI-1129 Wire ORed In wire ORed operation, you can make more than one module switch at the same time. In this mode, you can connect the SCANADVD signals together as show in Figure 2-16. By doing this, the SCANADVD lines are ORed together so that no scan advance is issued until the last module releases the line.

  • Page 59: Software Scanning

    Refer to the NI-SWITCH Software User Manual for more information on software scanning. Independent Switch Control You can independently control all 276 relays on the SCXI-1129, including connection relays and HVAB relays. To close/open the relays, refer to them by their appropriate name. Refer to Table 2-3.
  • Page 60 Chapter 2 Using the SCXI-1129 Table 2-3. Relay Names Matrix Relays Connection Analog Bus Bank 1 Bank 2 Bank 3 Bank 4 Relays Relays B1R0C0... B2R0C0... B3R0C0... B4R0C0... B1COM0... B1R0C15 B2R0C15 B3R0C15 B4R0C15 B1COM3 B1R1C0... B2R1C0... B3R1C0... B4R1C0... B2COM0... B1R1C15...

  • Page 61: Appendix A Specifications

    Specifications This appendix lists the specifications for the SCXI-1129 modules. These specifications are typical at 25 °C unless otherwise noted. Input Characteristics Number of 2-wire crosspoints....256 Matrix type..........Quad 4 × 16 Common-mode voltage Channel to channel......150 V or DC Channel to earth ......
  • Page 62 Recommended warm-up time....5 minutes Physical Dimensions ..........3.0 by 17.2 by 20.3 cm (1.2 by 6.9 by 8.0 in.) Environment Operating temperature ......0 to 50 °C Storage temperature ......–20 to 70 °C Relative humidity ........10 to 90% noncondensing SCXI-1129 User Manual ni.com...
  • Page 63 Select the appropriate product family, followed by your product, and a link to the DoC (in Adobe Acrobat format) appears. Click the Acrobat icon to download or read the DoC. © National Instruments Corporation SCXI-1129 User Manual...

  • Page 64: Appendix B Accessories

    • Use the 1-slot, 2-slot, and 8-slot HVAB-backplane adapters to connect the HVAB of the SCXI-1129 to the DMM. You can also use them to establish HVAB connections across multiple SCXI-1129 modules or SCXI chassis. 2-slot and 8-slot HVAB-backplane adapters have four connectors on the external side—two HVAB connectors, one digital...
  • Page 65 Appendix B Accessories • Use an HV8-BAN4 cable to connect the HVAB of the SCXI-1129(s) to the DMM analog bus. • Use 8-position HVAB plugs to interconnect the HVAB of the HVAB-backplane adapters. Contact National Instruments for more specific information about these products.
  • Page 66 SCXI-1129 Block Diagram Figure C-1 shows the SCXI-1129 high-density matrix module block diagram. All row and column connections, as well as the triggers, are accessed through the 180-pin connector on the front of the module. The internal module structure is a quad, 4 × 16 column matrix. The matrix can access the high-voltage analog backplane (HVAB) through the matrix connection relays and the high-voltage bus relays.
  • Page 67 SCXI-1129 Front Connector This appendix contains a connector diagram for the SCXI-1129 switch modules. The diagram also show the signal names that are used. When you connect a custom terminal block or cable it is important that you incorporate the safety interlock scheme into the terminal block/cable. The safety interlock disconnects the high-voltage bus from the matrix if the terminal block or matrix configuration module is removed.
  • Page 68 B3C3– B1C3+ B3C3+ B3C2– B1C2– B1C2+ B3C2+ B1C1– B3C1– B1C1+ B3C1+ B1C0– B3C0– B3C0+ B1C0+ 1R3– 3R3– 1R3+ 3R3+ 1R2– 3R2– 1R2+ 3R2+ 1R1– 3R1– 1R1+ 3R1+ 1R0– 3R0– 1R0+ 3R0+ Figure D-1. SCXI-1129 Front Connector SCXI-1129 User Manual ni.com...
  • Page 69 Appendix D SCXI-1129 Front Connector Table D-1. Front Connector Signal Description Signal Name Type Description +5 V Output +5 VDC isolated source—powers the EEPROM and the INTERLOCK signal Output Ground EXTRIGIN Input External Trigger Input—trigger from an instrument to advance the switch matrix to the...
  • Page 70 SCXI-1129 connects to the input trigger of the instrument. • If you use the SCXI-1129 to initiate the scan, make sure the DMM is waiting for a trigger before enabling scanning on the SCXI-1129. © National Instruments Corporation...
  • Page 71 NI-SWITCH handles the complex issues of register writes to the module and operating system interfacing. Can I plug a non SCXI-1129 module into a slot that has a high-voltage analog backplane? Yes. You can plug in a module that does not support the HVAB. The non-SCXI-1129 module does not connect to the HVAB or the digital communication lines on the HVAB backplane adapter.
  • Page 72 HVAB plug. You now have a 4 × 256 matrix that uses the backplane to automatically connect rows. You can use either the SCXI-1333 quad 4 × 16, or SCXI-1334 4 × 64 terminal blocks to connect to the matrix columns in this configuration. © National Instruments Corporation SCXI-1129 User Manual...
  • Page 73 Technical Support Resources Web Support National Instruments Web support is your first stop for help in solving installation, configuration, and application problems and questions. Online problem-solving and diagnostic resources include frequently asked questions, knowledge bases, product-specific troubleshooting wizards, manuals, drivers, software updates, and more. Web support is available through the Technical Support section of ni.com...
  • Page 74 Appendix F Technical Support Resources Worldwide Support National Instruments has offices located around the world to help address your support needs. You can access our branch office Web sites from the Worldwide Offices section of . Branch office Web sites provide ni.com...
  • Page 75 Typically, a bus is the expansion vehicle to which I/O or other devices are connected. © National Instruments Corporation SCXI-1129 User Manual...
  • Page 76 A/D conversion handshaking the use of two trigger lines between two instruments, such as a switch and a DMM, to synchronize their actions HVAB high-voltage analog bus hertz—the number of scans read or updates written per second SCXI-1129 User Manual ni.com...
  • Page 77 NI-SWITCH an IVI-based instrument driver that supports the National Instruments line of switch cards PCI with extensions for instrumentation...
  • Page 78 DMM this signal advances the switching module to the next channel. It is called External Trigger In (EXT_TRIG_IN) on the SCXI-1331 terminal block. watts wire data path between nodes SCXI-1129 User Manual ni.com...
  • Page 79 Index Numbers block diagram of SCXI-1129, C-1 BMOSI* signal (table), D-3 1R0+ to 1R3+ signal (table), D-3 1R0– to 1R3– signal (table), D-3 2 × 4 two-wire matrix configuration (figure), 2-1 2R0+ to 2R3+ signal (table), D-3 cables, B-1 to B-2 2R0–...
  • Page 80 1-8 to 1-9 adapters single 12-slot chassis common questions about, E-2 to E-3 configuration, 1-9 to 1-10 connecting SCXI-1129 to DMM or other handshaking mode fails to work with modules, B-1 third-party DMM, E-1 to E-2 overview, 1-1 hardware-timed scanning, 2-21 to 2-22...
  • Page 81 (figure), 2-3 DMM in PXI slots 1 through 3, 1-18 terminal block matrix configuration (table), 2-2 connecting SCXI-1129 to DMM in single chassis system, 1-7 to 1-10 matrix expansion, 2-16 to 2-20 8 × 64 matrix schematic...
  • Page 82 Index PXI-1011 chassis SCXI-1129 connecting with SCXI-1129, 1-17 to 1-18 accessories, B-1 to B-2 DMM in PXI slot 4, 1-18 block diagram, C-1 DMM in PXI slots 1 through 3, 1-18 common questions, E-1 to E-3 using DAQ device, 1-21...
  • Page 83 Index matrix configuration possible terminal blocks (table), 2-2 Web support from National Instruments, F-1 terminal block example (figure), 2-3 wire ORed multimodule scanning matrix expansion description, 2-25 column and row expansion example (figure), 2-26 (figure), 2-19 Worldwide technical support, F-2...

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