Measurement Specialties USB-1616HS-2 manual Installing the hardware

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USB-1616HS-2 User's Guide

Installing the USB-1616HS-2

Installing the hardware

To connect the USB-1616HS-2 to your system, turn your computer on, and then do the following:

Connect signal lines to the USB-1616HS-2's removable screw terminal blocks.

o Connect voltage signals as single-endedor differential connections (see Figure 1).

oConnect thermocouple signals as differential connections (see Figure 1). The negative (typically, the red) thermocouple wire connects to the channel's LO connector, and the other color wire connects to the channel's HI connector.

Always use differential input mode for thermocouple connections.

Figure 1. Single-ended voltage connections (V1 and V2) and differential thermocouple connections (V3)

If you are using an AI-EXP48 expansion device, connect it to the USB-1616HS-2. Make sure you do not connect the AI-EXP48 to a live USB-1616HS-2. If the USB cable is connected to the computer, unplug it before you connect the AI-EXP48.

If you are using the TR-2U external supply (sold separately), connect the power supply to the USB- 1616HS-2's external power connector, and plug the other end into a power outlet.

The TR-2U is optional, but can be used in any scenario. You may need a TR-2U power supply if the USB port does not provide enough power for your USB-1616HS-2 application.

The USB-1616HS-2 requires 3000 mW by itself, and 3400 mW when connected to the AI-EXP48. By USB2 standards, USB 2.0 ports are required to provide at least 2500 mW.

Connect the USB cable to the USB-1616HS-2 USB connector and to a USB port on your computer. A USB2.0 port is recommended—connecting to a USB1.1 port results in lower performance.

When you connect the USB-1616HS-2 for the first time, a Found New Hardware message opens as the USB-1616HS-2 is detected. When the message closes, the installation is complete.

The power LED (bottom LED) blinks during device detection and initialization, and then remains solid if properly detected. If not, check if the USB-1616HS-2 has sufficient power. When the board is first powered on, there is usually a momentary delay before the power LED begins to blink, or come on solid.

Caution! Do not disconnect any device from the USB bus while the computer is communicating with the USB-1616HS-2, or you may lose data and/or your ability to communicate with the USB-1616HS- 2.

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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 Conventions used in this users guide Where to find more informationAbout this Users Guide What you will learn from this users guide Chapter Overview USB-1616HS-2 features Software features Introducing the USB-1616HS-2Hardware Installing the USB-1616HS-2TR-2U power supply and CA-1* line cord What comes with your USB-1616HS-2 shipment?CA-96A expansion cable Installing the softwareUnpacking the USB-1616HS-2 Additional documentationInstalling the hardware Information on signal connections Configuring the hardwareConnecting the board for I/O operations Connectors, cables main I/O connectorUSB-1616HS-2 screw terminal pin out single-ended connections Screw terminal pin outsDSUB25 expansion connector pin out DSUB25F expansion connectorCA-96A expansion cable CablingUSB-1616HS-2 components Functional DetailsUSB-1616HS-2 components rear view External power connectorUSB-1616HS-2 functional block diagram USB-1616HS-2 block diagramExample Analog channel scanning of voltage inputs Analog inputAnalog input scanning Settling timeAnalog and digital scanning, once per scan mode example Example Analog and digital scanning, once per scan modeAnalog and digital scanning, once per scan mode example Averaging Tips for making accurate temperature measurementsThermocouple input ShieldingAnalog output Digital outputs and pattern generation Digital I/OTriggering Digital input scanningSoftware-based triggering Hardware analog triggeringDigital triggering Pre-triggering and post-triggering modes Counter inputsStop trigger modes Counter modes Totalize modeTips for making high-speed counter measurements 1 MHz Mapped channelsDebounce modes Trigger before stable mode Trigger after stable modeDebounce module Trigger before stable mode Debounce mode comparisonsOptimal debounce time for trigger before stable mode Encoder modeRepresentation of rotary shaft quadrature encoder Maximizing encoder accuracy Connecting the USB-1616HS-2 to an encoderTimer output frequency examples Timer outputsExample Timer outputs Detection setpoint overview Using multiple USB-1616HS-2s per PCCriteria input signal is equal to Action driven by condition Using the setpoint status register Setpoint configurationExamples of control outputs Detecting on analog input, DAC, and Firstportc updatesAnalog inputs with setpoints update on True and False Detection on an analog input, timer output updatesTimer output update on True and False Using the hysteresis functionDetecting setpoints on a totalizing counter Using multiple inputs to control one DAC outputDetection setpoint details FIRSTPORTC, DAC, or timer update latencyControlling analog, digital, and timer outputs Firstportc Calibrating the USB-1616HS-2 Accuracy SpecificationsAnalog input specifications Analog input accuracy specificationsThermocouple TC types and accuracy Note Analog output specificationsAnalog outputs ThermocouplesDigital input/output Digital input/output specificationsInput sequencer Counter specificationsInput sequencer specifications CountersFrequency/pulse generators Power consumptionFrequency/pulse generator specifications Power consumption specifications NoteEnvironmental External powerUSB specifications Signal I/O connectors and pin outUSB-1616HS-2 screw terminal pin out single-ended connections USB-1616HS-2 screw terminal pin out differential connections USA Declaration of ConformityMailinfo@mccdaq.com