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동시 및 동기화 작업
공유 스캔 클록과 시작 트리거를 사용하여 장치 내부와 여러 장치 간의 작업을 동기화합니다.
함수
addclock | Add clock connection to device interface |
removeclock | Remove clock from device interface |
addtrigger | 장치 인터페이스에 트리거 연결 추가 |
removetrigger | Remove trigger from device interface |
도움말 항목
동기화 고려 사항
- Synchronization
Synchronize operations with shared start triggers and shared scan clocks. - Trigger Connections
Simultaneously start all devices in the DataAcquisition. - Clock Connections
Synchronize operations on all connected devices in the DataAcquisition.
외부 클록, 공유 클록 및 공유 시작 트리거
- 디지털 트리거를 사용하여 전압 데이터 수집하기
하강 에지 디지털 트리거를 사용하여 아날로그 데이터 수집을 시작합니다. - Acquire Digital Data Using a Shared Clock
Share the clock of the analog subsystem on your device for the digital acquisition. - Acquire Digital Data Using an External Clock
Acquire digital data in the foreground using an external scan clock. - Acquire Digital Data Using a Counter Output Channel as External Clock
Acquire digital data using a counter output channel to generate clock pulses. - Multiple-Device Synchronization Using USB or PXI Devices
Synchronize multiple devices in a DataAcquisition using a shared clock and trigger. - Synchronize DSA Devices
Synchronize Digital Signal Analyzer product family devices for accurate audio frequency measurements.
CompactDAQ 동기화
- Acquire Data and Generate Signals Simultaneously
Acquire and generate data at the same time. - Acquire Digital Data Using an External Clock via Chassis PFI Terminal
Use CompactDAQ chassis PFI terminal with external clock. - Synchronize with PFI on CompactDAQ Chassis Without Terminals
Use the external trigger and clock functionality on a CompactDAQ chassis without PFI terminals. - Multiple-Chassis Synchronization with CompactDAQ Devices
Synchronize multiple CompactDAQ chassis.
추천 예제
Synchronize NI PCI Devices Using RTSI
Acquire synchronized data from two PCI devices. A sine wave is connected to channel 0 of NI PCI-6251 and to channel 0 of NI PCIe-6363. Synchronized operation is verified by demonstrating zero phase lag between the acquired signals.
Start a Multi-Trigger Acquisition on an External Event
Set up and start a multi-trigger acquisition on an external event. In this instance, the device is configured to start acquiring data on a rising edge signal.
Acquire Data from Two Devices at Different Rates
Acquire data from two different DAQ devices running at different sampling rates. The example uses two National Instruments™ CompactDAQ analog input modules (9201 and 9211) that have different acquisition rate limits. The 9211 module is used for temperature measurements and acquires at a slower rate (10 Hz) than the 9201 module, which is used to measure voltage (100 Hz). Since all channels in a data acquisition object must acquire at the same rate, to acquire from two modules at multiple rates you need to use two data acquisition objects. To make both DAQ devices start simultaneously, you can use a hardware digital triggering configuration.
Create an Echometer Using Audio Measurements
Create an echometer sonar using audio data acquisition and signal processing, which can measure distance by determining the time of flight of a sound pulse reflected off of a surface.
