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Summary of Contents for Measurement Computing USB-1608G
- Page 1 USB-1608G Multifunction DAQ Device User's Guide Document Revision 1A November 2014 © Copyright 2014...
- Page 2 Other product and company names mentioned herein are trademarks or trade names of their respective companies. © 2014 Measurement Computing Corporation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of Measurement Computing Corporation.
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Page 3: Table Of Contents
What you will learn from this user's guide ......................5 Conventions in this user's guide ......................... 5 Where to find more information ......................... 5 Chapter 1 Introducing the USB-1608G ......................... 6 Functional block diagram ........................... 6 Chapter 2 Installing the USB-1608G ........................7 Unpacking................................ - Page 4 USB-1608G User's Guide Timer ................................20 Memory ................................20 Power ................................20 USB .................................. 20 Environmental ..............................21 Mechanical ............................... 21 Screw terminal connector ..........................21 Differential mode pinout ..............................21 Single-ended mode pinout ...............................22 Declaration of Conformity ........................23...
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Page 5: Preface
Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. Where to find more information Additional information about the USB-1608G is available on our website at www.mccdaq.com. You can also contact Measurement Computing Corporation by phone, fax, or email with specific questions. -
Page 6: Introducing The Usb-1608G
USB cable is shipped with the device. The USB-1608G device is compatible with both USB 1.1 and USB 2.0 ports. The speed of the device may be limited when using a USB 1.1 port due to the difference in transfer rates on the USB 1.1 versions of the protocol (low-speed and full-speed). -
Page 7: Installing The Usb-1608G
Installing the hardware To connect a USB-1608G to your system, turn on your computer and connect the USB cable to an available USB port on the computer or to an external USB hub connected to the computer. Connect the other end of the USB cable to the USB connector on the device. -
Page 8: Chapter 3 Functional Details
Chapter 3 Functional Details Analog input modes The USB-1608G device can acquire analog input data in two basic modes – software paced and hardware paced. Software paced You can acquire one analog sample at a time in software paced mode. You initiate the A/D conversion with a software command. -
Page 9: External Components
USB-1608G User's Guide Functional Details External components The USB-1608G has the following external components (see Figure 3): USB connector LEDs Screw terminals Screw terminal pins 1 to 27 Activity LED Screw terminal pins 28 to 54 USB connector Status LED Figure 3. - Page 10 USB-1608G User's Guide Functional Details Figure 4. SE mode pinout Figure 5. DIFF mode pinout...
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Page 11: Signal Connections
Figure 6. DIFF connections with ground path resistor Channel-gain queue The USB-1608G channel-gain queue feature allows you to configure a list of channels, modes, and gains for each scan. The settings are stored in a channel-gain queue list that is written to local memory on the device. -
Page 12: External Clock I/O
USB-1608G User's Guide Functional Details An example of a 4-element list is shown in the table below. Sample channel-gain queue list Element Channel Range Mode BIP5V BIP10V DIFF CH15 BIP1V BIP5V Carefully match the gain to the expected voltage range on the associated channel or an over range condition may occur. -
Page 13: Trigger Input
USB-1608G User's Guide Functional Details Configure jumper for either pull-up or pull-down. The jumper is configured by default for pull-down. Figure 8 shows the location of the jumper on the board. Figure 8. W1 jumper location Figure 9 shows the jumper configured for pull-up and pull-down. -
Page 14: Timer Output
USB-1608G User's Guide Functional Details Timer output terminal is a pulse width modulation (PWM) timer output that can generate a pulse output with a programmable frequency in the range of 0.0149 Hz to 32 MHz. The timer output parameters are software selectable. -
Page 15: Mechanical Drawings
USB-1608G User's Guide Functional Details Mechanical drawings Figure 11. USB-1608G circuit board (top) and enclosure dimensions... -
Page 16: Chapter 4 Specifications
Chapter 4 Specifications All specifications are subject to change without notice. Typical for 25 °C unless otherwise specified. Specifications in italic text are guaranteed by design. Analog input Table 1. General analog input specifications Parameter Condition Specification A/D converter type Successive approximation ADC resolution 16 bits... -
Page 17: Accuracy
USB-1608G User's Guide Specifications Accuracy Analog input DC voltage measurement accuracy Table 2. DC accuracy components and specifications. All values are (±) Absolute Gain Offset accuracy at temperature temperature Gain error Offset error INL error Full Scale coefficient coefficient Range (% of reading) (µV) -
Page 18: Digital Input/Output
USB-1608G User's Guide Specifications Digital input/output Table 6. Digital I/O specifications Parameter Specification Digital type CMOS Number of I/O Configuration Each bit may be configured as input (power on default) or output The port has 47 kΩ resistors configurable as pull-ups or pull-downs (default) via Pull-up configuration internal jumper (W1). -
Page 19: External Clock Input/Output
USB-1608G User's Guide Specifications External clock input/output Table 8. External clock I/O specifications Parameter Specification Terminal names AICKI, AICKO Terminal types AICKI: Input, active on rising edge AICKO: Output, power on default is 0 V, active on rising edge Terminal descriptions... -
Page 20: Timer
USB-1608G User's Guide Specifications Timer Table 10. Timer specifications Parameter Specification Terminal name Timer type PWM output with count, period, delay, and pulse width registers Output value Default state is idle low with pulses high, software-selectable output invert Internal clock frequency... -
Page 21: Environmental
USB-1608G User's Guide Specifications Environmental Table 14. Environmental specifications Parameter Specification Operating temperature range 0 °C to 55 °C max –40 °C to 85 °C max Storage temperature range Humidity 0% to 90% non-condensing max Mechanical Table 15. Mechanical specifications... -
Page 22: Single-Ended Mode Pinout
USB-1608G User's Guide Specifications Single-ended mode pinout Table 18. 16-channel single-ended mode pinout Signal name Pin description Signal name Pin description AI channel 0 CH15 AI channel 15 AI channel 8 AI channel 7 AGND Analog ground AGND Analog ground... -
Page 23: Declaration Of Conformity
Norton, MA 02766 Category: Electrical equipment for measurement, control and laboratory use. Measurement Computing Corporation declares under sole responsibility that the products USB-1608G to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents: EC EMC Directive 2004/108/EC: General Requirements, EN 61326-1:2006 (IEC 61326-1:2005). - Page 24 Measurement Computing Corporation 10 Commerce Way Suite 1008 Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500 E-mail: info@mccdaq.com www.mccdaq.com...
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