Adlink USB-2401 User Manual

Advance Technologies; Automate the World.Manual Rev.: 2.00Revision Date: Apr 27, 2012Part No: 50-1Z101-1000USB-240124-bit 2kS/s USB 2.0-Based Unive

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Introduction 1USB-24011 Introduction1.1 OverviewThe USB-2401 is a 24-bit, 4-channel simultaneous-sampling uni-versal input USB DAQ module featuring b

2Introduction1.3 ApplicationsX Automotive testingX Laboratory researchX Biotech measurementX I/O control1.4 Specifications1.4.1 General Specifications

Introduction 3USB-2401Voltage ±25V±12.5V±2.5V±312.5mV±25V±12.5V±2.5V±312.5mVCurrent ±20mA 2.5VThermocouple K, J, N, R, S, B, T, E 78.125mVRTD (3-wir

4Introduction1.4.3 Analog Input ElectricalTemperature Draft @20SPS, in ppm/°CTemperature Draft @160SPS, in ppm/°CMode Gain drift Offset driftVoltage (

Introduction 5USB-2401Temperature Draft @2000SPS, in ppm/°CThermocouple 105.3142618 0.1936227852-wire RTD 2.965409564 0.5124401633-wire RTD 2.9963200

6IntroductionSystem Noise, in LSB (Typical, 25°C): 20 SPS to 160 SPSSystem Noise, in LSB (Typical, 25°C): 320 SPS to 2000 SPSMode Sampling Rate (SPS)2

Introduction 7USB-24011.4.4 Digital Input/OutputThermocouple 107.9735725 143.46202 198.49927 202.176932-wire RTD 44.53668125 77.870435 71.369319 127.

8Introduction1.5 Software SupportADLINK provides comprehensive software drivers and packagesto suit various user approaches to system building. In add

Introduction 9USB-2401Please note that only DAQPilot versions 2.3.0.712 and later cansupport the USB-2401.

iiRevision HistoryRevision Release Date Description of Change(s)2.00 Apr 27, 2012 Initial release

10 Introduction1.7 Utilities for Windows1.7.1 U-TestU-Test is a free and ready-to-use utility which can assist instanttesting and operation of all ADL

Introduction 11USB-24011.8 Overview and Dimensions1.8.1 ModuleFigure 1-2: USB-2401 Module Rear ViewNOTE:NOTE:All dimensions shown are in millimeters

12 IntroductionFigure 1-3: USB-2401 Module Side View

Introduction 13USB-2401Figure 1-4: USB-2401 Module Front View41.3114

14 Introduction1.8.2 Module StandThe multi-function USB-2401 stand is compatible with desk, rail, orwall mounting. To fix the module in the stand, sli

Introduction 15USB-2401Figure 1-7: Module In Stand Front View

16 IntroductionFigure 1-8: Module Stand Top View20.420.4B26

Introduction 17USB-2401Figure 1-9: Module Stand Side Cutaway ViewFigure 1-10: Module Stand Front View5.891.563.4100

18 Introduction1.9 Connector InformationThe USB-2401 module is equipped with 40-pin removablescrew-down terminal connectors, with pin assignment and s

Introduction 19USB-2401Table 1-3: I/O Signal DescriptionSignal Name Reference Direction DescriptionGND<0..3> -------- Ground of excitation vol

Preface iiiUSB-2401PrefaceCopyright 2012 ADLINK Technology, Inc.This document contains proprietary information protected by copy-right. All rights ar

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Getting Started 21USB-24012 Getting Started2.1 Connecting the USB-2401 Module1. Turn on the computer.2. Connect the USB-2401 module to one USB 2.0 po

22 Getting StartedIf the USB-2401 module cannot be detected, the power providedby the USB port may be insufficient. The USB-2401 module isexclusively

Getting Started 23USB-24012.3 Hardware ConfigurationAll remaining hardware configurations are softwareprogrammable, including sampling/update rate, i

24 Getting StartedFigure 2-4: Module Pre-Rail MountingFigure 2-5: Module Rail-Mounted

Getting Started 25USB-24012.4.2 Wall MountingThe multi-function stand can be fixed to a wall using four flushhead screws as shown. The four screw hol

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Operation 27USB-24013 OperationOperation of the USB-2401 is described here to assist inconfiguration and programming of the module. Functionsdescribe

28 Operation3.2.2 Ground-Referenced Signal SourceConnected in some way to the existing ground system, to acommon ground point with respect

Operation 29USB-2401100 times the equivalent source impedance, such that if thesource impedance is less than 100, the negative side of thesignal nee

iv PrefaceConventionsTake note of the following conventions used throughout thismanual to make sure that users perform certain tasks andinstructions p

30 OperationFigure 3-4: Current Source Connection3.3.3 Full Bridge and Half Bridge Input ModeA bridge-based transducer is a passive device, requiring

Operation 31USB-2401Figure 3-5: Full Bridge and Half Bridge Connection3.3.4 Thermocouple Input ModeA thermocouple consists of two different conductor

32 OperationFigure 3-6: Thermocouple Connection3.3.5 RTD Input ModeThe resistance temperature detector (RTD) measures tempera-ture by correlating the

Operation 33USB-2401Figure 3-7: 4-Wire RTD ConnectionFigure 3-8: 3-Wire RTD ConnectionMUX0.5mARTDEXCSC+SC-GNDMUX0.5mARTDSC+SC-GNDEXC

34 OperationFigure 3-9: 2-wire RTD Connection3.3.6 Wire Resistance ModeThe USB-2401 can source precision 0.05 mA excitation current tothe resistor to

Operation 35USB-2401Figure 3-10: 2-Wire Resistance Connection3.4 AI Data FormatThe acquired 24-bit A/D data is 2’s complement coded data for-mat. Va

36 OperationTable 3-2: Analog Input Range and Output Digital Code (cont’d)3.5 ADC Sampling RateSampling Rate refers to ADC internal conversion speed

Operation 37USB-2401completed. Please refer to UD-DASK function reference for thedetails of corresponding software API instruction.3.5.2 Continuous A

38 Operation3.6.2 General Purpose Timer/CounterThe USB-2401 is equipped with one general purpose timer/coun-ter featuring:X Count up/down controllable

Operation 39USB-24013.6.3 General Purpose Timer/Counter ModesTen programmable timer/counter modes are available. All initializefollowing a software-s

Table of Contents vUSB-2401Table of ContentsRevision History... iiPreface...

40 Operationsoftware application. Operation in which initial count = 0,count-up mode is shown.Figure 3-12: Mode 2-Single Period MeasurementMode 3: Sin

Operation 41USB-2401Mode 4: Single-Gated Pulse GenerationThis mode generates a single pulse with programmable delayand programmable pulse-width follo

42 OperationFigure 3-15: Mode 5-Single-Triggered PulseMode 6: Re-Triggered Single Pulse GenerationThis mode is similar to Mode 5 except that the count

Operation 43USB-2401Figure 3-17: Mode 7-Single-Triggered Continuous PulseMode 8: Continuous Gated Pulse GenerationThis mode generates periodic pulses

44 Operationthe counter value in Edge Separation Measurement mode isshown.Figure 3-19: Mode 9-Edge Separation MeasurementMode 10: PWM OutputThe USB-19

Calibration 45USB-24014 CalibrationThe USB-2401 is factory-calibrated before shipment. The associ-ated calibration constants of the TrimDACs firmware

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Important Safety Instructions 47USB-2401Important Safety InstructionsFor user safety, please read and follow all instructions,WARNINGS, CAUTIONS, an

48 Important Safety InstructionsX Never attempt to fix the equipment. Equipment should only be serviced by qualified personnel.A Lithium-type battery

Getting Service 49USB-2401Getting ServiceContact us should you require any service or assistance. ADLINK Technology, Inc. Address: 9F, No.166 Jian

vi Table of Contents2.4.2 Wall Mounting ... 253 Operation...

50 Getting ServiceADLINK Technology, Inc. (French Liaison Office) Address: 15 rue Emile Baudot, 91300 Massy CEDEX, France Tel: +33 (0) 1 60 12 3

List of Figures viiUSB-2401List of FiguresFigure 1-1: U-Test Interface... 10Figure 1-2: USB-2401

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List of Tables ixUSB-2401List of TablesTable 1-1: U-Test Interface Legend............ 10Table 1-2: USB-2401 Pin