Measurement USB-3110 User Manual
USB-2627
Document Revision 3
July 2014
© Copyright 2014
User's Guide
Multifunction Measurement and Control
HM USB-2627.docx
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Table of Contents
Preface
About this User's Guide ....................................................................................................................... 5
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-2627 .................................................................................................................... 6
Functional block diagram ................................................................................................................................... 7
Chapter 2
Installing the USB-2627 ........................................................................................................................ 8
What comes with your shipment? ....................................................................................................................... 8
Hardware .......................................................................................................................................................................... 8
Software ............................................................................................................................................................................ 8
Documentation ................................ ................................................................ ................................................................ .. 8
Optional components ........................................................................................................................................................ 8
Unpacking........................................................................................................................................................... 8
Installing the software ........................................................................................................................................ 8
Installing the hardware ....................................................................................................................................... 9
Configuring the hardware ................................................................................................................................... 9
Calibrating the hardware..................................................................................................................................... 9
Field calibration ................................................................................................................................................................ 9
Factory calibration ............................................................................................................................................................ 9
Chapter 3
Signal Connections ............................................................................................................................. 10
68-pin SCSI connector P1 ................................................................................................................................ 10
Cabling.............................................................................................................................................................................11
Signal termination ............................................................................................................................................................11
40-pin header connectors J2, J4, and J5 ................................................................ ................................ ............ 12
Cabling.............................................................................................................................................................................13
Signal termination ............................................................................................................................................................13
Chapter 4
Functional Details ............................................................................................................................... 14
Analog input modes .......................................................................................................................................... 14
Software paced .................................................................................................................................................................14
Hardware paced ...............................................................................................................................................................14
Burst mode........................................................................................................................................................ 14
USB-2627 components ..................................................................................................................................... 15
68-pin SCSI connector P1 ................................................................................................................................................15
40-pin header connectors J2, J4, and J5 ...........................................................................................................................16
USB connector .................................................................................................................................................................16
LEDs ................................................................................................................................................................................16
Standoffs ..........................................................................................................................................................................16
Signal descriptions ............................................................................................................................................ 16
Analog input ....................................................................................................................................................................16
Analog output ..................................................................................................................................................................17
Digital I/O ........................................................................................................................................................................17
Counter input ...................................................................................................................................................................18
Trigger input ....................................................................................................................................................................18
Timer output ....................................................................................................................................................................18
Ground ................................................................................................................................................................ .............18
Power output ....................................................................................................................................................................19
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USB-2627 User's Guide
USB power ....................................................................................................................................................... 19
Mechanical drawing ......................................................................................................................................... 19
Chapter 5
Specifications ...................................................................................................................................... 20
Analog input ..................................................................................................................................................... 20
Accuracy ........................................................................................................................................................... 20
Analog input DC voltage measurement accuracy ............................................................................................................20
Noise performance ...........................................................................................................................................................21
Settling time for Multichannel Measurements .................................................................................................................21
Analog output ................................................................................................................................................... 21
Analog input/output calibration ........................................................................................................................ 22
Digital input/output........................................................................................................................................... 22
External trigger ................................................................................................................................ ................. 23
External clock ................................................................................................................................................... 23
Counter ............................................................................................................................................................. 23
Timer output ..................................................................................................................................................... 24
Memory ............................................................................................................................................................ 24
Power ................................................................................................................................................................ 24
USB .................................................................................................................................................................. 25
Environmental .................................................................................................................................................. 25
Mechanical ....................................................................................................................................................... 25
Signal connections ............................................................................................................................................ 25
68-pin SCSI connector (P1) .............................................................................................................................................26
40-pin header connectors (J2, J4, J5) ...............................................................................................................................27
Standoff locations ............................................................................................................................................. 28
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About this User's Guide
What you will learn from this user's guide
This user's guide describes the Measurement Computing USB-2627 data acquisition device and lists device
specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Preface
Where to find more information
For additional information relevant to the operation of your hardware, refer to the Documents subdirectory
where you installed the MCC DAQ software (C:\Program Files\Measurement Computing\DAQ by default), or
search for your device on our website at www.mccdaq.com.
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Chapter 1
Introducing the USB-2627
The USB-2627 is a USB 2.0 high-speed device that is supported under the Microsoft® Windows® operating
system.
The USB-2627 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 (lowspeed and full-speed).
The USB-2627 device provides the following features:
16 single-ended (SE) analog inputs
24 DIO channels; bit configurable for input or output
Four analog outputs
Four counter inputs
Four timer outputs
Digital trigger input
External AI scan clock input
External AO scan clock input
One 68-pin SCSI connector and three 40-pin header connectors for field wiring connections
The USB-2627 is powered by the USB supply from the computer; external power is not required.
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USB-2627 User's Guide Introducing the USB-2627
Functional block diagram
USB-2627 functions are illustrated in the block diagram shown in Figure 1.
Figure 1. USB-2627 functional block diagram
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Installing the USB-2627
What comes with your shipment?
Verify that the following hardware components are included in the shipment:
Hardware
USB-2627 (with standoffs)
USB cable
Software
MCC DAQ CD
Documentation
MCC DAQ Quick Start Guide
The Quick Start Guide booklet provides an overview of the MCC DAQ software you received with the
device, and includes information about installing the software. Please read this booklet completely before
installing any software or hardware.
Chapter 2
Optional components
Cables
o CA-68-3R
o C40FF-x
Signal termination boards
o TB-100
o TB-103
o CIO-MINI40
Unpacking
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the USB-2627 from its packaging, ground yourself using a wrist strap or by simply
touching the computer chassis or other grounded object to eliminate any stored static charge.
If any components are missing or damaged, contact us immediately using one of the following methods:
Knowledgebase: kb.mccdaq.com
Phone: 508-946-5100 and follow the instructions for reaching Tech Support
Fax: 508-946-9500 to the attention of Tech Support
Email: techsupport@mccdaq.com
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at www.mccdaq.com/International.
Installing the software
Refer to the Quick Start Guide for instructions on installing the software on the MCC DAQ CD. This booklet is
available at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.
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USB-2627 User's Guide Installing the USB-2627
Installing the hardware
Install the software before you install your device
A driver needed to run the USB-2627 is installed when you install the software. Therefore, you need to install
the software package you plan to use before you install the hardware.
For operation on a Windows operating system, we recommend that you run Windows Update to update your
operating system with the latest USB drivers.
To connect a USB-2627 device to your system, turn on your computer and connect the USB cable to an
available USB port on the computer or to an externally powered USB hub connected to the computer.
When connected for the first time, a Found New Hardware dialog opens when the operating system detects the
device. When the dialog box closes, the installation is complete.
The Power LED (top LED) blinks during device detection and initialization, and then remains on. When the
board is first powered on, there is usually a momentary delay before the Power LED blinks or turns on.
Configuring the hardware
All hardware configuration options are programmable with software.
Caution! Avoid redundant connections. Ensure that there is no signal conflict between the 68-pin SCSI
connector (P1) and the 40-pin connectors (J2 to J5). Failure to do so could possibly cause
equipment damage and/or personal injury.
Turn off power to all devices connected to the system before making connections. Electrical shock
or damage to equipment can result even under low-voltage conditions.
Always handle components carefully, and never touch connector pins or circuit components unless
you are following ESD guidelines in an appropriate ESD-controlled area. These guidelines include
using properly-grounded mats and wrist straps, ESD bags and cartons, and related procedures.
Avoid touching board surfaces and onboard components. Only handle boards by their edges. Make
sure that the USB-2627 does not come into contact with foreign elements such as oils, water, and
industrial particulate.
The discharge of static electricity can damage some electronic components. Semiconductor
devices are especially susceptible to ESD damage.
Calibrating the hardware
Field calibration
The USB-2627 supports self-calibration. Run the InstaCal utility to calibrate the USB-2627 whenever the
ambient temperature changes by more than ±10 °C from the last self-calibration. The recommended calibration
interval is one year. Calibrate the inputs before calibrating the outputs.
Factory calibration
The Measurement Computing Manufacturing Test department performs the initial factory calibration. Return
the device to Measurement Computing Corporation if you want the factory calibration restored.
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