Chapter 4 Hardware Overview
Trigger Sources
The Scan Clock, Start Trigger, and Stop Trigger signals can be generated through software or supplied externally as digital triggers or as analog triggers on one of the input channels or the TRIG channel. Figure 4-10 shows the different trigger sources. In addition, Scan Clock is available from a source (counter) internal to the NI 5102.
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Programmable |
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Gain Amplfier |
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CH0 |
Gain |
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ADC 0 |
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Programmable |
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High |
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Gain Amplifier |
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Level |
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CH1 |
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ADC 1 |
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COMP |
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Analog Trigger |
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Analog |
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Analog |
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Analog |
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Trigger |
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Circuit |
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Buffer |
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Mux |
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TRIG |
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COMP |
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Low |
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– |
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Level |
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Star Trigger (PXI) |
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a. Analog Trigger Circuit |
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Software |
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Analog Trigger |
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Circuit Output |
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Digital |
Start Trigger |
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RTSI <0..6> |
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Mux |
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(Where Available) |
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PFI1, PFI2 |
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Internal Scan |
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Analog Trigger |
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Digital |
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Circuit Output |
Scan Clock |
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Stop Trigger |
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PFI1, PFI2 |
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Mux |
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2 |
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RTSI <0..6> |
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(Where Available) |
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b. Trigger Sources |
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c. Scan Clock Sources |
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Figure 4-10. Scan Clock, Start Trigger, and Stop Trigger Signal Sources
NI 5102 User Manual |
4-14 |
ni.com |