Measurement Specialties manual Functional Details, USB-1616HS-2 components

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Chapter 3

Functional Details

This chapter contains detailed information on all of the features available from the board, including:

a diagram and explanations of physical board components

a functional block diagram

information on how to use the signals generated by the board

diagrams of signals using default or conventional board settings

USB-1616HS-2 components

These USB-1616HS-2 components are shown in Figure 4.

Six removable screw terminal blocks

One USB port

One external power connector

One 25-pin expansion connector

Two LED indicators ("Active" and "Power")

Analog output, calibration,

TTL trigger and pacer signal

Analog input, screw terminal blocks

DSUB25 expansion

Analog input, screw terminalconnector blocks

Figure 4. USB-1616HS-2 components – front view

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Contents Page USB-1616HS-2 Management committed to your satisfaction Trademark and Copyright Information Table of Contents USB-1616HS-2 Users Guide Where to find more information About this Users GuideWhat you will learn from this users guide Conventions used in this users guideOverview USB-1616HS-2 features Software featuresIntroducing the USB-1616HS-2 ChapterInstalling the USB-1616HS-2 TR-2U power supply and CA-1* line cordWhat comes with your USB-1616HS-2 shipment? HardwareInstalling the software Unpacking the USB-1616HS-2Additional documentation CA-96A expansion cableInstalling the hardware Configuring the hardware Connecting the board for I/O operationsConnectors, cables main I/O connector Information on signal connectionsScrew terminal pin outs USB-1616HS-2 screw terminal pin out single-ended connectionsDSUB25F expansion connector DSUB25 expansion connector pin outCabling CA-96A expansion cableFunctional Details USB-1616HS-2 componentsExternal power connector USB-1616HS-2 components rear viewUSB-1616HS-2 block diagram USB-1616HS-2 functional block diagramAnalog input Analog input scanningSettling time Example Analog channel scanning of voltage inputsExample Analog and digital scanning, once per scan mode Analog and digital scanning, once per scan mode exampleAnalog and digital scanning, once per scan mode example Tips for making accurate temperature measurements Thermocouple inputShielding AveragingAnalog output Digital I/O TriggeringDigital input scanning Digital outputs and pattern generationDigital triggering Hardware analog triggeringSoftware-based triggering Stop trigger modes Counter inputsPre-triggering and post-triggering modes Totalize mode Tips for making high-speed counter measurements 1 MHzMapped channels Counter modesDebounce modes Trigger after stable mode Trigger before stable modeDebounce mode comparisons Debounce module Trigger before stable modeEncoder mode Optimal debounce time for trigger before stable modeRepresentation of rotary shaft quadrature encoder Connecting the USB-1616HS-2 to an encoder Maximizing encoder accuracyExample Timer outputs Timer outputsTimer output frequency examples Using multiple USB-1616HS-2s per PC Detection setpoint overviewCriteria input signal is equal to Action driven by condition Setpoint configuration Using the setpoint status registerDetecting on analog input, DAC, and Firstportc updates Examples of control outputsDetection on an analog input, timer output updates Analog inputs with setpoints update on True and FalseUsing the hysteresis function Timer output update on True and FalseUsing multiple inputs to control one DAC output Detecting setpoints on a totalizing counterControlling analog, digital, and timer outputs FIRSTPORTC, DAC, or timer update latencyDetection setpoint details Firstportc Calibrating the USB-1616HS-2 Specifications Analog input specificationsAnalog input accuracy specifications AccuracyAnalog output specifications Analog outputsThermocouples Thermocouple TC types and accuracy NoteDigital input/output specifications Digital input/outputCounter specifications Input sequencer specificationsCounters Input sequencerPower consumption Frequency/pulse generator specificationsPower consumption specifications Note Frequency/pulse generatorsExternal power USB specificationsSignal I/O connectors and pin out EnvironmentalUSB-1616HS-2 screw terminal pin out single-ended connections USB-1616HS-2 screw terminal pin out differential connections Declaration of Conformity USAMailinfo@mccdaq.com