Resumen del contenido incluido en la página 1
Resumen del contenido incluido en la página 2
USB-1616HS-2 User's Guide Document Revision 1, August, 2007 © Copyright 2007, Measurement Computing Corporation
Resumen del contenido incluido en la página 3
Your new Measurement Computing product comes with a fantastic extra — Management committed to your satisfaction! Refer to www.mccdaq.com/execteam.html for the names, titles, and contact information of each key executive at Measurement Computing. Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission: To pro
Resumen del contenido incluido en la página 4
Trademark and Copyright Information TracerDAQ, Universal Library, Harsh Environment Warranty, Measurement Computing Corporation, and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation. Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation LabVIEW is a trademark of National Instruments. CompactFlash is a registered trademark of SanDisk Corporation. XBee and XBee-PRO ar
Resumen del contenido incluido en la página 5
Table of Contents Preface About this User's Guide .......................................................................................................................7 What you will learn from this user's guide .........................................................................................................7 Conventions used in this user's guide .................................................................................................................7 Where to find more
Resumen del contenido incluido en la página 6
USB-1616HS-2 User's Guide Tips for making high-speed counter measurements (> 1 MHz) .......................................................................................27 Mapped channels .............................................................................................................................................................27 Counter modes.....................................................................................................................................
Resumen del contenido incluido en la página 7
Preface About this User's Guide What you will learn from this user's guide This user's guide explains how to install, configure, and use the USB-1616HS-4 so that you get the most out of its analog I/O, thermocouple (TC) input, digital I/O, counter/timer I/O features. This user's guide also refers you to related documents available on our web site, and to technical support resources. Conventions used in this user's guide For more information on … Text presented in a box signifies addi
Resumen del contenido incluido en la página 8
Chapter 1 Introducing the USB-1616HS-2 Overview: USB-1616HS-2 features ® ® The USB-1616HS-2 is supported under popular Microsoft Windows operating systems. The USB-1616HS-2 board is a multifunction measurement and control board designed for the USB bus. The USB-1616HS-2 provides either eight differential or 16 single-ended analog inputs with 16-bit resolution. It offers seven software-selectable analog input ranges of ±10 V, ±5 V, ±2 V, ±1 V, ±0.5 V, ±0.2 V, and ±0.1V. You can configur
Resumen del contenido incluido en la página 9
Chapter 2 Installing the USB-1616HS-2 What comes with your USB-1616HS-2 shipment? As you unpack your USB-1616HS-2, verify that the following components are included. Hardware USB-1616HS-2 USB cable (2-meter length) TR-2U power supply and CA-1* line cord AC-to-DC conversion power supply and cord plugs into the external power connector of the USB-1616HS-2. * European customers: Contact Measurement Computing to order the CA-261 line cord for your region. Optional components Ex
Resumen del contenido incluido en la página 10
USB-1616HS-2 User's Guide Installing the USB-1616HS-2 AI-EXP48 Analog input expansion module adds up to 24 differential or 48 single-ended inputs to the USB-1616HS-2. CA-96A expansion cable Expansion cable for connecting to the AI-EXP48 expansion board. Additional documentation In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description
Resumen del contenido incluido en la página 11
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-ended or differential connections (see Figure 1). o Connect thermocouple signals as differential connections (see Figure 1). The negative (typically, the red) thermocouple wire connects to the channel's LO con
Resumen del contenido incluido en la página 12
USB-1616HS-2 User's Guide Installing the USB-1616HS-2 Configuring the hardware All hardware configuration options on the USB-1616HS-2 are software-controlled. You can select some of the configuration options using InstaCal, such as the analog input configuration (16 single-ended or 8 differential channels), and the edge used for pacing when using an external clock. When measuring from thermocouples, make sure you configure the channels for differential mode. Once selected, any program that
Resumen del contenido incluido en la página 13
USB-1616HS-2 User's Guide Installing the USB-1616HS-2 Screw terminal pin outs USB-1616HS-2 screw terminal pin out – single-ended connections Analog common (A ) Digital common (D ) Analog output 0 (AO0) FIRSTPORTA Bit 0 (A0) Analog output 1 (AO1) FIRSTPORTA Bit 1 (A1) NC FIRSTPORTA Bit 2 (A2) NC FIRSTPORTA Bit 3 (A3) Analog common (A ) FIRSTPORTA Bit 4 (A4) Analog Out DIG-Tmr I/O CAL (Reserved for self-calibration) FIRSTPORTA Bit 5 (A5) Signal ground (S ) FIRSTPORTA Bit 6 (
Resumen del contenido incluido en la página 14
USB-1616HS-2 User's Guide Installing the USB-1616HS-2 USB-1616HS-2 screw terminal pin out – differential connections Analog common (A ) Digital common (D ) Analog output 0 (AO0) FIRSTPORTA Bit 0 (A0) Analog output 1 (AO1) FIRSTPORTA Bit 1 (A1) NC FIRSTPORTA Bit 2 (A2) NC FIRSTPORTA Bit 3 (A3) Analog common (A ) FIRSTPORTA Bit 4 (A4) Analog Out DIG-Tmr I/O CAL (Reserved for self-calibration) FIRSTPORTA Bit 5 (A5) Signal ground (S ) FIRSTPORTA Bit 6 (A6) Digital common (D )
Resumen del contenido incluido en la página 15
USB-1616HS-2 User's Guide Installing the USB-1616HS-2 Cabling Use a CA-96A 25-pin expansion cable (CA-96A expansion cable) to connect to the USB-1616HS-2's 25-pin expansion connector. Figure 3. CA-96A expansion cable 15
Resumen del contenido incluido en la página 16
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
Resumen del contenido incluido en la página 17
USB-1616HS-2 User's Guide Functional Details Device "Active" LED Counter and digital I/O (port C) screw terminal blocks External "Power" LED Counter and digital I/O (port B) screw terminal blocks USB connector Timer and digital I/O (port A) screw terminal blocks External power connector Figure 5. USB-1616HS-2 components – rear view External power connector Although the USB-1616HS-2 is powered by a USB port on a host PC, an external power connector may also be required to prov
Resumen del contenido incluido en la página 18
USB-1616HS-2 User's Guide Functional Details USB-1616HS-2 block diagram Figure 6 shows a simplified block diagram of the USB-1616HS-2. This board provides all of the functional elements shown in the figure. 16-bit 1 MHz D/A converters output clock 2 8 diff/16 SE analog inputs Programmable gain amplifier Analog channel MUX x1, x2, input protection 16 x5, x10, x20 16-bit, 1 MHz x50, x100 A/D converter One TTL A 2 trigger input A One analog 512-step input pacer clock random access 1 MHz chan
Resumen del contenido incluido en la página 19
USB-1616HS-2 User's Guide Functional Details Analog input The USB-1616HS-2 has a 16-bit, 1-MHz A/D coupled with 16 single-ended, or eight differential analog inputs. Seven software programmable ranges provide inputs from ±10 V to ±100 mV full scale. Analog input scanning The USB-1616HS-2 has several scanning modes to address various applications. You can load the 512-location scan buffer with any combination of analog input channels. All analog input channels in the scan buffer are measur
Resumen del contenido incluido en la página 20
USB-1616HS-2 User's Guide Functional Details If you want 256 oversamples, then each analog channel in the scan group will take 256 µs, and the returned 16- bit value represents an average of 256 consecutive 1 µs samples of that channel. The acquisition is triggered and 16-bit values—each representing an average of 256—stream to the PC via the USB cable. Since two of the channels in the scan group are temperature channels, you need the acquisition engine to read a cold-junction- compensation (
