National Instruments 1128, SCXI-1127

Appendix E Common Questions

behind slots 3 and 4 you have connected the rows between slot 3 and 4

which creates a 4 × 16 matrix. Now install the two 1-slot adapters behind

slots 1 and 2. Connect the two 1-slot adapters together with an 8-position

HVAB plug. Do not connect the 2-slot HVAB-backplane adapter to the

1-slot adapters as this would create a 4 × 32 matrix. You now have created

two independent 4 × 16 matrices. Finally, to create a 8 × 16 matrix you must

connect the 16 columns of each 4 × 16 matrix through the SCXI-1332

terminal block by using either matrix expansion cables or by wiring the

terminal blocks by hand.

Contents

Main Page Important Information Warranty Copyright Trademarks WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS Compliance FCC/Canada Radio Frequency Interference Compliance* Determining FCC Class FCC/DOC Warnings Class A European Union - Compliance to EEC Directives Conventions Contents Chapter 1 Installing and Configuring the SCXI-1127/1128 Chapter 2 Using the SCXI-1127/1128 Page Glossary Index Figures Tables Installing and Configuring the SCXI-1127/1128 Installing the Software Installing the Hardware Installing the SCXI-1127/1128 Module into the SCXI Chassis Connecting the SCXI-1127/1128 to the DMM in a Single-Chassis System Single 4-Slot Chassis Configuration Refer to Figures 1-2 and 1-3 to make connections in the single 4-slot chassis configuration. Figure 1-2. 4-Slot Single-Chassis Installation Page Single 12-Slot Chassis Configuration Refer to Figures 1-4 and 1-5 to make connections in the single 12-slot chassis configuration. Figure 1-4. 12-Slot Single-Chassis Installation Page Connecting the SCXI-1127/1128 to the DMM in a Multichassis System 4-Slot and 4-Slot Multichassis Configuration Refer to Figure 1-6 to set up this multichassis configuration. Figure 1-6. 4-Slot to 4-Slot Multichassis Configuration Parts Locator Diagram 4-Slot and 12-Slot Multichassis Configuration Refer to Figure 1-7 to set up this multichassis configuration. Figure 1-7. 4-Slot to 12-Slot Multichassis Configuration Parts Locator Diagram 12-Slot and 12-Slot Multichassis Configuration Page Connecting the SCXI-1127/1128 to the DMM in a PXI-1010 Chassis DMM in PXI Slots 1 through 7 Configuration DMM in PXI Slot 8 Configuration Connecting the SCXI-1127/1128 to the DMM in the PXI-1011 Chassis DMM in PXI Slots 1 through 3 Configuration DMM in PXI Slot 4 Configuration Accessing the SCXI-1127/1128 through Other SCXI Modules Using aDAQ Device Page Using a DAQ Device on a PXI-1010 Chassis Using a DAQ Device on a PXI-1011 Chassis Connecting the SCXI-1127/1128 to an External DMM Page Configuring and Self-Test Auto-Detecting Modules Manually Adding Modules Safety Information Page Using the SCXI-1127/1128 Operating as a Multiplexer/Scanner Page 2-Wire Channel Scanning Configuration Page 1-Wire Channel Scanning Configuration 4-Wire Channel Scanning Configuration Page Page 4-Wire versus 2-Wire Resistance Measurement Mixed Mode Configuration Hardware-Timed and Software Scanning Hardware-Timed Scanning Chapter 2 Using the SCXI-1127/1128 Figure 2-11. Hardware Scanning Flowchart National Instruments Corporation 2-13 SCXI-1127/1128 User Manual Hardware-Timed Scanning Using a DMM Hardware-Timed Scanning Using External Instruments Synchronous Scanning Handshaking Scanning Page Software Scanning Making Temperature Measurements Making Thermocouple Measurements - Making RTD Measurements Making Thermistor Measurements Operating as a Matrix 32 1 Matrix Configuration 4 8 Matrix Configuration Page Page Matrix Expansion Page Page Page Figure 2-25 shows the schematic of the 8 16 matrix shown in Figure 2-24. Figure 2-25. 8 16 Matrix Schematic Page Chapter 2 Using the SCXI-1127/1128 Figure 2-26. SCXI-1127/1128 Relay Configuration SCXI-1127/1128 User Manual 2-30 ni.com CJS Front Signal Connector Bank 4 Specifications SCXI-1127 Input Characteristics Transfer Characteristics Dynamic Characteristics Trigger Characteristics Stability Physical Environment Safety SCXI-1128 Input Characteristics Transfer Characteristics Page Page B Accessories Page C Customizing Your Module Page D Figure D-1. SCXI-1127/1128 Front Connector Pin Assignments for 2-Wire Mode Figure D-2. SCXI-1127/1128 Front Connector Pin Assignments for 1-Wire Mode Figure D-3. SCXI-1127/1128 Front Connector Pin Assignments for 4-Wire Mode Figure D-4. SCXI-1127/1128 Front Connector Pin Assignments to Create an 4 8Matrix Page E Common Questions Page Page F Technical Support Resources Web Support NI Developer Zone Customer Education System Integration Worldwide Support Glossary Symbols A B C D E Page R S T V Page Index Numbers A C D E F G H M N O P Q R T W