National Instruments PXIe-4302, Руководство пользователя

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Contents
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Timing Engines and DSP Streams....................................................................................2-19
Timing Engines.........................................................................................................2-19
DSP Streams .............................................................................................................2-19
AI Channels and DSP Streams .........................................................................2-19
Examples of Limitations...................................................................................2-19
Accessory Auto-Detection........................................................................................2-20
Chapter 3
SC Express Considerations
SC Express Clock and Trigger Signals.............................................................................3-1
PXIe_CLK100 ..........................................................................................................3-1
PXIe_SYNC100........................................................................................................3-1
PXI_CLK10 ..............................................................................................................3-1
PXI Triggers .............................................................................................................3-1
PXI_STAR Trigger...................................................................................................3-2
PXIe_DSTAR<A..C> ...............................................................................................3-2
Appendix A
NI Services
Services and Resources.....................................................................................................A-1
Figures
Figure 2-1. Connecting Floating Signal Source without Bias Resistors ..................2-2
Figure 2-2. Connecting Floating Signal Source with Single Bias Resistor..............2-2
Figure 2-3. Connecting Floating Signal Source with Balanced Bias Resistors .......2-3
Figure 2-4. Connecting AC Coupled Floating Sources with Low Impedance.........2-3
Figure 2-5. Connecting AC Coupled Floating Sources
with Balanced Bias Resistors ................................................................2-4
Figure 2-6. Connecting Ground-Referenced Signal Sources ...................................2-4
Figure 2-7. Connecting a Loop-Powered Current Transducer .................................2-6
Figure 2-8. Connecting a Three-Wire Current Transducer ......................................2-7
Figure 2-9. NI PXIe-4302/4303 Block Diagram.....................................................2-10
Figure 2-10. HWTSP Data Path Model......................................................................2-14
Figure 2-11. Transfer Time and Application Time Relationship...............................2-15
Figure 2-12. Typical Control System .........................................................................2-15
Figure 2-13. Input and Output of a Control System with Bandwidth
≥
2 kHz ...........2-15
Tables
Table 2-1. Front Connector Signal Pin Assignments .............................................2-8
Table 2-2. I/O Connector Signal Descriptions........................................................2-9
Table 3-1. PXIe_DSTAR Line Descriptions ..........................................................3-2