用户手册目录SCXI-1127/1128 User Manual1Support2Worldwide Technical Support and Product Information2National Instruments Corporate Headquarters2Worldwide Offices2Important Information3Warranty3Copyright3Trademarks3WARNING REGARDING USE OF NATIONAL INSTRUMENTS PRODUCTS3Contents7Chapter 1 Installing and Configuring the SCXI-1127/112811Installing the Software12Installing the Hardware13Installing the SCXI-1127/1128 Module into the SCXI Chassis14Connecting the SCXI-1127/1128 to the DMM in a Single-Chassis System15Single 4-Slot Chassis Configuration16Single 12-Slot Chassis Configuration18Connecting the SCXI-1127/1128 to the DMM in a Multichassis System204-Slot and 4-Slot Multichassis Configuration204-Slot and 12-Slot Multichassis Configuration2212-Slot and 12-Slot Multichassis Configuration24Connecting the SCXI-1127/1128 to the DMM in a PXI-1010 Chassis26DMM in PXI Slots 1 through 7 Configuration26DMM in PXI Slot 8 Configuration27Connecting the SCXI-1127/1128 to the DMM in the PXI-1011 Chassis27DMM in PXI Slots 1 through 3 Configuration28DMM in PXI Slot 4 Configuration28Accessing the SCXI-1127/1128 through Other SCXI Modules Using a DAQ Device28Using a DAQ Device on a PXI-1010 Chassis30Using a DAQ Device on a PXI-1011 Chassis30Connecting the SCXI-1127/1128 to an External DMM30Configuring and Self-Test32Auto-Detecting Modules32Manually Adding Modules33Safety Information34Chapter 2 Using the SCXI-1127/112836Operating as a Multiplexer/Scanner362-Wire Channel Scanning Configuration381-Wire Channel Scanning Configuration404-Wire Channel Scanning Configuration414-Wire versus 2-Wire Resistance Measurement44Mixed Mode Configuration45Hardware-Timed and Software Scanning46Hardware-Timed Scanning47Software Scanning52Making Temperature Measurements52Making Thermocouple Measurements52Making RTD Measurements54Making Thermistor Measurements54Operating as a Matrix5532 x 1 Matrix Configuration554 x 8 Matrix Configuration56Matrix Expansion59Independent Mode64Appendix A Specifications66Appendix B Accessories72Appendix C Customizing Your Module74Appendix D SCXI-1127/1128 Front Connector76Appendix E Common Questions82Appendix F Technical Support Resources85Glossary87Symbols87A-B87C-E88H-P89R-S90T-V91W92Index93Numbers93A-C93D-I94M95N-S96T-W97Figures9Figure 1-1. Installing the SCXI-1127/1128 into an SCXI Chassis14Figure 1-2. 4-Slot Single-Chassis Installation16Figure 1-3. 4-Slot Configuration Parts Locator Diagram17Figure 1-4. 12-Slot Single-Chassis Installation18Figure 1-5. 12-Slot Configuration Parts Locator Diagram19Figure 1-6. 4-Slot to 4-Slot Multichassis Configuration Parts Locator Diagram21Figure 1-7. 4-Slot to 12-Slot Multichassis Configuration Parts Locator Diagram23Figure 1-8. 12-Slot to 12-Slot Multichassis Configuration Parts Locator Diagram25Figure 1-9. Installing the SCXI-1127/1128 with Two DAQ Devices29Figure 2-1. SCXI-1331 Signal Connections37Figure 2-2. 2-Wire Block Diagram38Figure 2-3. 2-Wire Wiring Diagram39Figure 2-4. 1-Wire Block Diagram40Figure 2-5. 1-Wire Wiring Diagram41Figure 2-6. 4-Wire Block Diagram42Figure 2-7. 4-Wire Wiring Diagram43Figure 2-8. Signal Connections for a 2-Wire Resistance Measurement44Figure 2-9. Signal Connections for a 4-Wire Resistance Measurement45Figure 2-10. Mixed Mode Scanning with an SCXI-133146Figure 2-11. Hardware Scanning Flowchart48Figure 2-12. Cabling a DMM and Using the TRIG0 to Bus the VMC/EXT_TRIG_IN to Non-Cabled Modules49Figure 2-13. Cabling an External DMM50Figure 2-14. Daisy-Chained for Handshaking51Figure 2-15. Connecting an External DMM to an SCXI-1127/1128 in an SCXI-2000 Series Chassis51Figure 2-16. Temperature Measurement Wiring Diagram53Figure 2-17. 2 x 4, 1-Wire Matrix Configuration55Figure 2-18. 1 x 32 Matrix Wiring Diagram56Figure 2-19. SCXI-1332 Terminal Block57Figure 2-20. SCXI-1332 Connected to an SCXI-112758Figure 2-21. SCXI-1332 Connected to an SCXI-1127/1128 Schematic59Figure 2-22. 8 x 8 Matrix Parts Locator Diagram60Figure 2-23. 8 x 8 Matrix Schematic61Figure 2-24. 8 x 16 Matrix Parts Locator Diagram62Figure 2-25. 8 x 16 Matrix Schematic63Figure 2-26. SCXI-1127/1128 Relay Configuration65Figure C-1. Removing the SCXI Module Cover74Figure C-2. Bent and Trimmed Resistor75Figure D-1. SCXI-1127/1128 Front Connector Pin Assignments for 2-Wire Mode77Figure D-2. SCXI-1127/1128 Front Connector Pin Assignments for 1-Wire Mode78Figure D-3. SCXI-1127/1128 Front Connector Pin Assignments for 4-Wire Mode79Figure D-4. SCXI-1127/1128 Front Connector Pin Assignments to Create an 4 x 8 Matrix80Tables10Table 1-1. SCXI-1127/1128 Configurations11Table D-1. Front Connector Signal Description81文件大小: 3.1 MB页数: 97Language: English打开用户手册