Keysight U2600A Series User manual

Keysight U2600A Series USB
Isolated Digital Input/Output
Modules
User’s Guide

4 Keysight U2600A Series User’s Guide
Notices
Copyright Notice
© Keysight Technologies 2007-2020
No part of this manual may be
reproduced in any form or by any
means (including electronic storage
and retrieval or translation into a
foreign language) without prior
agreement and written consent from
Keysight Technologies as governed by
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copyright laws.
Trademarks
Pentium is a U.S. registered trademark
of Intel Corporation.
Microsoft, Visual Studio, Windows, and
MS Windows are trademarks of
Microsoft Corporation in the United
States and or other countries.
Manual Part Number
U2651-90011
Edition
Edition 8, October 2020
Printed in:
Printed in Malaysia
Published by:
Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia
Technology Licenses
The hardware and/or software
described in this document are
furnished under a license and may be
used or copied only in accordance with
the terms of such license.
Declaration of Conformity
Declarations of Conformity for this
product and for other Keysight
products may be downloaded from the
Web. Go to http://www.keysight.com/
go/conformity. You can then search by
product number to find the latest
Declaration of Conformity.
U.S. Government Rights
The Software is “commercial computer
software,” as defined by Federal
Acquisition Regulation (“FAR”) 2.101.
Pursuant to FAR 12.212 and 27.405-3
and Department of Defense FAR
Supplement (“DFARS”) 227.7202, the
U.S. government acquires commercial
computer software under the same
terms by which the software is
customarily provided to the public.
Accordingly, Keysight provides the
Software to U.S. government
customers under its standard
commercial license, which is embodied
in its End User License Agreement
(EULA), a copy of which can be found
at http://www.keysight.com/find/
sweula. The license set forth in the
EULA represents the exclusive authority
by which the U.S. government may use,
modify, distribute, or disclose the
Software. The EULA and the license set
forth therein, does not require or
permit, among other things, that
Keysight: (1) Furnish technical
information related to commercial
computer software or commercial
computer software documentation that
is not customarily provided to the
public; or (2) Relinquish to, or
otherwise provide, the government
rights in excess of these rights
customarily provided to the public to
use, modify, reproduce, release,
perform, display, or disclose
commercial computer software or
commercial computer software
documentation. No additional
government requirements beyond
those set forth in the EULA shall apply,
except to the extent that those terms,
rights, or licenses are explicitly required
from all providers of commercial
computer software pursuant to the FAR
and the DFARS and are set forth
specifically in writing elsewhere in the
EULA. Keysight shall be under no
obligation to update, revise or
otherwise modify the Software. With
respect to any technical data as
defined by FAR 2.101, pursuant to FAR
12.211 and 27.404.2 and DFARS
227.7102, the U.S. government
acquires no greater than Limited Rights
as defined in FAR 27.401 or DFAR
227.7103-5 (c), as applicable in any
technical data.
Warranty
THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO THE
MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT
DISCLAIMS ALL WARRANTIES, EITHER
EXPRESS OR IMPLIED, WITH REGARD
TO THIS MANUAL AND ANY
INFORMATION CONTAINED HEREIN,
INCLUDING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS
OR FOR INCIDENTAL OR
CONSEQUENTIAL DAMAGES IN
CONNECTION WITH THE
FURNISHING, USE, OR
PERFORMANCE OF THIS DOCUMENT
OR OF ANY INFORMATION
CONTAINED HEREIN. SHOULD
KEYSIGHT AND THE USER HAVE A
SEPARATE WRITTEN AGREEMENT
WITH WARRANTY TERMS COVERING
THE MATERIAL IN THIS DOCUMENT
THAT CONFLICT WITH THESE TERMS,
THE WARRANTY TERMS IN THE
SEPARATE AGREEMENT SHALL
CONTROL.
Safety Information
CAUTION
A CAUTION notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered to,
could result in damage to the product
or loss of important data. Do not
proceed beyond a CAUTION notice
until the indicated conditions are fully
understood and met.
WARNING
A WARNING notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered to,
could result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated conditions are
fully understood and met.

Keysight U2600A Series User’s Guide 5
Safety Symbols
The following symbols on the instrument and in the documentation indicate
precautions which must be taken to maintain safe operation of the instrument.
Direct current (DC)
Equipment protected throughout by
double insulation or reinforced
insulation
Alternating current (AC) Off (power supply)
Both direct and alternating current On (power supply)
Three-phase alternating current Caution, risk of electric shock
Earth (ground) terminal
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information)
Protective conductor terminal Caution, hot surface
Frame or chassis terminal Out position of a bi-stable push control
Equipotentiality In position of a bi-stable push control

6 Keysight U2600A Series User’s Guide
General Safety Information
WARNING – Do not use the device if it is damaged. Before you use the device, inspect
the case. Look for cracks or missing plastic. Do not operate the device
around explosive gas, vapor, dust, or wet environments.
– Do not apply more than the rated voltage (as marked on the device)
between terminals, or between terminal and external ground.
– Always use the device with the cables provided.
– Observe all markings on the device before connecting to the device.
– Turn off the device and application system power before connecting to
the I/O terminals.
– When servicing the device, use only the specified replacement parts. Do
not operate the device with the removable cover removed or loosened.
– Do not connect any cables and terminal block prior to performing the
self-test process.
– Use only the power adapter supplied by the manufacturer to avoid any
unexpected hazards.
– Mains supply voltage fluctuations are not to exceed 10% of the nominal
supply voltage.

Keysight U2600A Series User’s Guide 7
CAUTION – Do not load the output terminals above the specified current limits.
Applying excessive voltage or overloading the device will cause
irreversible damage to the circuitry.
– Applying excessive voltage or overloading the input terminal will damage
the device permanently.
– If the device is used in a manner not specified by the manufacturer, the
protection provided by the device may be impaired.
– Always use dry cloth to clean the device. Do not use ethyl alcohol or any
other volatile liquid to clean the device.
– Do not permit any blockage of the ventilation holes of the device.

8 Keysight U2600A Series User’s Guide
Environmental Conditions
This instrument is designed for indoor use and in an area with low condensation.
The table below shows the general environmental requirements for this
instrument.
Environmental conditions Requirements
Operating temperature 0 °C to +55 °C
Operating humidity 15% to 85% RH non-condensing
Storage temperature –20 °C to 70 °C
Altitude Up to 2,000 m
Pollution degree 2
Installation category II
NOTE The U2600A Series USB Isolated Digital Input/Output Modules complies with
the following safety and EMC requirements.
– IEC 61010-1:2001/EN 61010-1:2001
– Canada: CAN/CSA-C22.2 No.61010-1-04
– USA: ANSI/UL 61010-1: 2004
– IEC 61326-1:2002/EN 61326-1:1997+A1:1998+A2:2001+A3:2003
– CISPR 11: 1990/EN55011:1990 – Group 1 Class A
– Canada: ICES-001: 2004
– Australia/New Zealand: AS/NZS CISPR11:2004
Refer to the Declaration of Conformity for current revision. Go to
http://www.keysight.com/go/conformity for more information.

Keysight U2600A Series User’s Guide 9
Regulatory Markings
The CE mark is a registered trademark
of the European Community. This CE
mark shows that the product complies
with all the relevant European Legal
Directives.
The RCM mark is a registered
trademark of the Australian
Communications and Media Authority.
ICES/NMB-001 indicates that this ISM
device complies with the Canadian
ICES-001. Cet appareil ISM est
conforme a la norme NMB-001 du
Canada.
The CSA mark is a registered
trademark of the Canadian Standards
Association.

10 Keysight U2600A Series User’s Guide
Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/EC
This instrument complies with the WEEE Directive (2002/96/EC) marking
requirement. This affixed product label indicates that you must not discard this
electrical or electronic product in domestic household waste.
Product category:
With reference to the equipment types in the WEEE directive Annex 1, this
instrument is classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste.
To return this unwanted instrument, contact your nearest Keysight Service Center,
or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml
for more information.
Sales and Technical Support
To contact Keysight for sales and technical support, refer to the support links on
the following Keysight websites:
–www.keysight.com/find/U2600A
(product-specific information and support, software and
documentation updates)
–www.keysight.com/find/assist
(worldwide contact information for repair and service)
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Keysight U2600A Series User’s Guide 11
Table of Contents
Safety Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
General Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Regulatory Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Waste Electrical and Electronic Equipment (WEEE) Directive
2002/96/EC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
1 Getting Started
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Product outlook . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Product dimension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Terminal Block Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Standard Purchase Items Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
L-Mount Kit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
General Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Additional Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Hardware verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
Sample code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
2 Connector Pins Configuration
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Connector Pins Configuration for U2651A . . . . . . . . . . . . . . . . . . . . . . .33
Connector Pins Configuration for U2652A . . . . . . . . . . . . . . . . . . . . . . .35
Connector Pins Configuration for U2653A . . . . . . . . . . . . . . . . . . . . . . .37
55-pin Connector (J1) Pins Configuration . . . . . . . . . . . . . . . . . . . . . . .39

12 Keysight U2600A Series User’s Guide
3 Features and Functions
Digital Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Isolated digital input channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Isolated digital output channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Virtual Port Group Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Interrupt Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Trigger Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
4 Characteristics and Specifications
5 Dismantle Procedures
General Disassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Mechanical disassemble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Self-Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Keysight U2600A Series User’s Guide 13
List of Figures
Figure 2-1 Connector in vertical view . . . . . . . . . . . . . . . . . . . . . .32
Figure 2-2 Connector in horizontal view . . . . . . . . . . . . . . . . . . . .32
Figure 2-3 Pins configuration for U2651A . . . . . . . . . . . . . . . . . . .33
Figure 2-4 Pins configuration for U2652A . . . . . . . . . . . . . . . . . . .35
Figure 2-5 Pins configuration for U2653A . . . . . . . . . . . . . . . . . . .37
Figure 2-6 Connector (J1) 55-pin . . . . . . . . . . . . . . . . . . . . . . . . .39
Figure 3-1 Isolated digital input bit through a photo coupler . . .43
Figure 3-2 The maximum and minimum allowable input voltage
at DIin and DICOM and the absolute voltage range
for DIO to see a logic high . . . . . . . . . . . . . . . . . . . .43
Figure 3-3 Isolated digital output is switched on with load . . . . .45
Figure 3-4 Isolated digital output is switched off with load . . . . .45
Figure 3-5 Enabling the Interrupt Operation Register will allow
it to send a signal, “1” to the Status Byte Register
when either the logic level for bit 301 or bit 302
changes from “0” to “1”. . . . . . . . . . . . . . . . . . . . . .49
Figure 3-6 Flowchart for interrupt function operation . . . . . . . . .51
Figure 3-7 Flowchart for trigger function operation . . . . . . . . . . .53

14 Keysight U2600A Series User’s Guide
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Keysight U2600A Series User’s Guide 15
List of Tables
Table 2-1 Pins legend for U2651A . . . . . . . . . . . . . . . . . . . . . . . .34
Table 2-2 Pins legend for U2652A . . . . . . . . . . . . . . . . . . . . . . . .36
Table 2-3 Pins legend for U2653A . . . . . . . . . . . . . . . . . . . . . . . .38
Table 2-4 U2600A series J1 connector pin assignment . . . . . . .39
Table 2-5 U2600A series J1 connector legend . . . . . . . . . . . . . .40
Table 3-1 Step-by-step descriptions for trigger function
flowchart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

16 Keysight U2600A Series User’s Guide
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Keysight U2600A Series USB Isolated Digital Input/Output Modules
User’s Guide
17
1 Getting Started
Introduction 18
Product Overview 19
Terminal Block Overview 21
Standard Purchase Items Checklist 22
Software Installation 23
L-Mount Kit Installation 24
General Maintenance 26
Additional Information 27
This chapter contains instructions on how to get started with U2600A Series USB
isolated digital input/output modules that begins from system requirements
checking, to installations of hardware and software, and to the launching of the
Keysight Measurement Manager application software.

1 Getting Started
18 Keysight U2600A Series User’s Guide
Introduction
The U2600A Series USB isolated digital input/output modules (DIO) consists of
three models:
– U2651A: Isolated 32-bit DI and 32-bit DO
– U2652A: Isolated 64-bit DI
– U2653A: Isolated 64-bit DO
These series can be used as a standalone unit or as a modular unit. However, if
used as a modular unit, the module needs to be installed into the U2781A USB
Modular Instrument Chassis.
All three models are high performance modules with up to eight channels. High
digital I/O lines increases the utility of the product and offers you added flexibility.
The U2600A Series USB isolated DIO modules recognizes a wide range of digital
input (10 V to 24 V) as logic high. This provides you with more choices when
choosing external sensors with different DC output levels. The U2600A Series
modules are also equipped with a high voltage isolation protection of up to
1250 Vrms to prevent the internal circuits from severe damage.
In addition, these modules are capable of driving most actuators in industrial
automation applications with a high output driving capability of up to 35 V. The
U2600A Series USB isolated DIO modules also offer a wide range of compatibility
with Application Development Environments (ADE) such as Keysight VEE,
LabVIEW, MATLAB, and Microsoft Visual Studio.
The U2600A Series USB isolated DIO modules are user friendly modules as setting
up is quick and easy with the Hi-speed USB connection interface (up to
480 Mb/s). Moreover, the modules are bundled with the Keysight Measurement
Manager application software for ease of management.

Getting Started 1
Keysight U2600A Series User’s Guide 19
Product Overview
Product outlook
Front View
Rear View
Top view
Bumper
DI/DO indicator
Power indicator
Connector
USB connector
Power inlet
Plastic casing

1 Getting Started
20 Keysight U2600A Series User’s Guide
Product dimension
With plastic casing
Top view
Without plastic casing
Top view
Front view Front view
182.39 mm 174.54 mm
44.00 mm
120.00 mm
25.00 mm
105.00 mm