Daq System Overview; Daq Hardware - National Instruments M Series User Manual

DAQ System Overview

Figure 2-1 shows a typical DAQ system, which includes sensors, transducers, signal
conditioning devices, cables that connect the various devices to the accessories, the M Series
device, programming software, and PC. The following sections cover the components of a
typical DAQ system.
Figure 2-1. Components of a Typical DAQ System
Signal
Conditioning
Sensors and
Transducers

DAQ Hardware

DAQ hardware digitizes signals, performs D/A conversions to generate analog output signals,
and measures and controls digital I/O signals. Figure 2-2 features components common to all
M Series devices.
Figure 2-2. General M Series Block Diagram
Analog Input
Analog Output
Digital I/O
Counters
PFI
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Cables and DAQ
Accessories Hardware
Digital
Routing
and Clock
Interface
Generation
RTSI
2
DAQ Personal Computer
Software or
PXI/PXI Express
Chassis
Bus
Bus
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