M1866PW - Moniteur 3M - Free user manual and instructions

USER MANUAL M1866PW 3M

For the Multi-Touch Desktop Product Line:

M1866PW, M2167PW, M2467PW, and M2767PW Read and understand all safety information

contained in this document before using this product.2 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C The information in this document is subject to change without notice. No part of this document may be reproduced or transmitted

in any form or by any means, electronic or mechanical, for any purpose, without the express written permission of 3M Touch

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The information provided in this document is intended as a guide only. For the latest detailed engineering specifications, please

contact your 3M Touch Systems, Inc. Application Engineer. 3M Touch Systems, Inc. is committed to continually improving

product designs, as a result, product specifications may be subject to change without notification.

"RoHS compliant 2011/65/EU" means that the product or part does not contain any of the following substances in excess of the

following maximum concentration values in any homogeneous material, unless the substance is in an application that is exempt

under RoHS: (a) 0.1% (by weight) for lead, mercury, hexavalent chromium, polybrominated biphenyls or polybrominated

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based in whole or in part on information provided by third party suppliers to 3M.

NOTICE: Given the variety of factors that can affect the use and performance of a 3M Touch Systems, Inc. Product (the

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of which factors are uniquely within User’s knowledge and control, it is essential that User evaluate the 3M Touch Systems, Inc.

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Copyright © 2011—12 3M All rights reserved.

Document Title: 3M™ Multi-Touch Desktop Display User Guide

Document Number: TSD-40532, Version C

3M, the 3M logo, MicroTouch, and the MicroTouch logo are either registered trademarks or trademarks of 3M in the United

States and/or other countries.

Windows and/or other Microsoft products referenced herein are either registered trademarks or trademarks of Microsoft

Corporation in the U.S. and/or other countries.

Linux is a registered trademark of Linus Torvalds in the U.S. and/or other countries

All other trademarks are the property of their respective owners.3M™ Multi-Touch Desktop Display User Guide 3

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Contents

Maintaining Your Touch Display 8

Touch Sensor Care and Cleaning 8

3M Touch Systems Support Services 9

Contact 3M Touch Systems 9

Chapter 2 Setting up Your Multi-Touch Desktop Display

Video Card Requirements 13

Using the Standard Controls for the Video Card 13

Supported Video Display Modes and Refresh Rates 13

Configuring the Display Settings 14

Multimedia Features 14

Access to the Video Controls 14

Chapter 3 Enabling Your Multi-Touch Desktop Display

Windows®7 USB Compatibility 19

All Other Platforms 19

Multi-touch Application Support 19

Installing 3M™ MicroTouch™ Software 20

Video Alignment 204 3M™ Multi-Touch Desktop Display User Guide

Overview of USB Firmware Communications 22

Communication Basics 22

Receiving Reports from the Controller 23

Regulatory Agency Approvals 30

Congratulations on the purchase of your 3M™ Multi-Touch Desktop Display. This guide

describes how to set up your Multi-Touch Desktop Display.

The 3M Multi-Touch Desktop Displays take interactive display technology to the next

level by combining uncompromising multi-touch performance, brilliant high-definition

graphics, wide viewing angles and elegant product design into a fully-integrated, easy-to-

use, plug-and-play desktop device.

The 3M Multi-Touch Desktop Displays feature 3M’s industry-leading Projected

Capacitive (3M PCT) technology that exceeds the typical touch performance of popular

smart phone and tablet devices by offering a high performance multi-touch experience.

Recognizing up to 20 simultaneous touch events, each at a 6-millisecond response rate,

the 3M Multi-Touch Desktop Displays also recognize and reject the user’s palms or arm

resting on the screen to help prevent inadvertent touches. This incredible touch

performance allows for a more natural user interaction that results in a truly inspired

creative experience unrivaled by competitive touch displays.6 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C By combining industry-leading multi-touch performance, vibrant high-definition

graphics, and wide viewing angles with a fully integrated, industrial-design desktop

device, the 3M Multi-Touch Desktop Displays clearly defines the next level of interactive

Important Safety Information

Read and understand all safety information before using this product. Follow all

instructions marked on the product and described in this document. Pay close attention to

the following installation warnings and safety precautions.

The 3M Multi-Touch Desktop Display was designed for touch input and tested to

replace an existing display. These displays are intended for indoor use only and are not

designed for use in hazardous locations.

Explanation of Signal Word Consequences

DANGER: Indicates a potentially hazardous situation, which, if not avoided, will

result in death or serious injury and/or property damage.

WARNING: Indicates a potentially hazardous situation, which, if not avoided,

could result in death or serious injury and/or property damage.

CAUTION: Indicates a potentially hazardous situation, which, if not avoided, may

result in minor or moderate injury and/or property damage.

NOTICE: Indicates a potentially hazardous situation, which, if not avoided, may result

DANGER To avoid the risk of fire and/or explosion which will result in serious injury or

• Do not install or use this product in a hazardous location.

WARNING To avoid the risk of fire which could result in serious injury or death:

• Do not remove the cover or back of the display.

To avoid the risk of electric shock which could result in serious injury or death:

• Plug power cord into appropriate grounded power source.

• Do not use a damaged power supply.

• Do not use a power cord that is frayed or otherwise damaged.

• Do not service the Flat Panel Display yourself. There are no user serviceable parts

inside. Refer all servicing to qualified service personnel.

• Do not use non-conforming replacement parts.

• Do not place wet or damp objects on the display.3M™ Multi-Touch Desktop Display User Guide 7

3M Touch Systems, Inc. Proprietary Information – TSD-40532C WARNING To avoid the risk of electric shock which could result in serious injury or death:

• Do not expose the display to rain or other sources of water, steam, or moisture.

• Do not place foreign objects on the display or its cables.

• Do not remove the cover or back of the display.

• Ensure that connecting the unit to the power source will not overload the power

CAUTION To avoid the risk of glass breakage which may result in minor or moderate injury:

• Handle the display with care to avoid breaking the touch sensor. The display

contains glass parts. Dropping the display may cause the glass parts to break.

• Ensure mounting screws are tightened fully to prevent instability.

• Do not place foreign objects on the display.

To avoid the potentially hazardous situations associated with the use of isopropyl

alcohol or other solvents for cleaning which may result in minor or moderate

injury or property damage:

• Follow all instructions and recommendations in the manufacturer's Material Safety

Data Sheet and product label.

To avoid possible environmental contamination which may result in minor or

• Dispose of the flat panel display according to applicable governmental regulations.

To avoid the risk of potential impact and instability which may result in minor or

moderate injury and/or property damage:

• Do not mount using the VESA mount unless using a UL listed type mounting arm

bracket or a kiosk rated for the weight of the monitor and mounted with correct

installation hardware, following installation UL guidelines to a rated wall or

• Ensure mounting screws are tightened fully to prevent instability.

• Do not place foreign objects on the display.

To reduce the risk of muscle strain related to accessibility which may result in

minor or moderate injury and/or property damage:

• Do not install the monitor in a manner or location with awkward accessibility.

Extended use may result in muscle, tendon, or fixed posture strains. It is

recommended you take periodic breaks from continuous use.

• You are notified that any change or modification to the equipment not expressly

approved by the party responsible for compliance could void your authority to

operate such equipment.

• Do not use longer screws as they could potentially damage electronics inside the

display.8 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Important Notes

• In extreme temperature and humidity situations, you may observe condensation

between the touch screen and the display. To minimize this condition, place the unit

where it will be used and allow a 24-hour environmental stabilization period prior to

powering on the display. Any noticeable condensation is temporary and will have no

long term affect on the operation of the display.

• When unplugging power supply cord, hold the plug, do not pull by the cord.

• Do not connect or disconnect this product during an electrical storm.

• Install the display in a well-ventilated area. Always maintain adequate ventilation to

protect the display from overheating and to ensure reliable and continued operation.

• Do not expose this display to direct sunlight or heat. Passive heat may cause damage

to the housing and other parts.

• An inherent characteristic of the PCT sensor is a fine grid pattern that may be visible

under certain lighting conditions.

• Do not install this display in areas where extreme vibrations may be generated. For

example, nearby manufacturing equipment may produce strong vibrations. The

vibrations may cause the display to exhibit picture discoloration or poor video quality.

Maintaining Your Touch Display

To maintain your display and keep your display operating at peak performance:

• Keep your display and touch sensor clean.

• Adjust the display video controls.

• Do not install the display in a place where ventilation may be hindered. Always

maintain adequate ventilation to protect the display from overheating and to promote

reliable and continued operation.

Touch Sensor Care and Cleaning

The touch sensor requires very little maintenance. 3M Touch Systems recommends that

you periodically clean the glass touch sensor surface. Be sure to turn off your display

Typically, an isopropyl alcohol and water solution ratio of 50:50 is the best cleaning

agent for your touch sensor.

• Apply the cleaner with a soft, lint-free cloth. Avoid using gritty cloths.

• Always dampen the cloth and then clean the sensor. Be sure to spray the cleaning

liquid onto the cloth, not the sensor, so that drips do not seep inside the display or

stain the bezel.3M™ Multi-Touch Desktop Display User Guide 9

3M Touch Systems, Inc. Proprietary Information – TSD-40532C CAUTION To avoid the potentially hazardous situations associated with the use of alcohol or other

solvents which may result in minor or moderate injury or property damage:

• Follow all instructions and recommendations in the manufacturer's Material Safety

Data Sheet and product label.

• Be sure to follow solvent manufacturer's precautions and directions for use when

• It is important to avoid using any caustic chemicals on the touch sensor.

3M Touch Systems Support Services

3M Touch Systems, Inc. provides extensive support services through our website and

technical support organization. Visit the 3M Touch Systems website at

http://www.3m.com/touch/

, where you can download MT 7 software and drivers, obtain

regularly updated technical documentation on 3M Touch Systems products, and learn

more about our company.

Whenever you contact Technical Support, please provide the following information:

• Touch display size, part number and serial number

• Current driver version

• Operating system used

• Information on additional peripherals

Technical Support is available Monday through Friday 8:30 a.m. to 5:30 p.m. with

limited call back service after 5:30 p.m. until 8:00 p.m. US Eastern Standard Time – 9

a.m. to 5 p.m. throughout Europe.

You can contact 3M Touch Systems, Inc. Technical Support (US only -- Eastern

Standard Time) by calling the hot line, sending email or a fax.

• Technical Support Hot Line: 978-659-9200

• Email: US-TS-techsupport@mmm.com

Contact 3M Touch Systems

Contact information for all offices can be found on our website at:

http://www.3m.com/touch/10 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C CHAPTER 2

Setting up Your Multi-Touch Desktop Display

This chapter describes how to set up your 3M Touch Systems Multi-Touch Desktop

Display. You need to complete the following tasks:

• Unpack the components

• Connect the video, touch display cables, and power cables

• Power on the display and test your setup

• If you are not running Windows 7 (or Tablet PC), install MT7 software from the

enclosed CD. Note that this will not make multi-touch happen -- it is up to your

application to enable multi-touch.

The Multi-Touch Desktop Display requires a personal computer (PC). The requirements

for your PC are as follows:

• Your PC must have an available USB port to connect the touch sensor cable.

• Your PC must have a video card and video driver already installed for the display. If

you need to install a video card or a video driver, refer to your computer

documentation for instructions.

When choosing your workspace, select a sturdy, level surface. Also, make sure you can

easily access the back of the touch display and the computer. Easy access helps ensure a

smooth setup of the touch display.

Note: Before setting up your Multi-Touch Desktop Display, refer to the “Important

Safety Information” section at the beginning of this document.3M™ Multi-Touch Desktop Display User Guide 11

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Unpacking Your Touch Display

Carefully unpack the carton and inspect the contents. Your Multi-Touch Desktop Display

includes the following cables and accessories:

• USB communication cable

• DVI and VGA video cables and an HDMI to DVI converter.

• US power cable and brick

• Software CD and documentation

Cables Included with Your Multi-Touch Desktop Display

DVI to HDMI converter

Connecting the Touch Display

CAUTION You are cautioned that any change or modification to the equipment not expressly

approved by the party responsible for compliance could void your authority to operate

such equipment.12 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C To connect the Multi-Touch Desktop Display:

1. Turn off your computer. You should always turn off the computer before connecting

or disconnecting a device.

2. Select either the DVI/HGMI or VGA cable. Connect one end of the video cable to

the video connector on the display. Connect the other end to the video card in your

3. Connect one end of the touch sensor USB cable to the LCD. Connect the other end to

an available port on your computer.

4. Plug the AC power cord into the display.

5. Connect the power cable to an appropriate power source.

Testing the Multi-Touch Desktop Display

Note: The Desktop Display has a power status light located on the front of the bezel.

After connection, turn on the power switch located at the bottom of the front bezel.

Before testing your touch display, make sure all cables are connected properly. Be sure to

tighten all cable screws.

To test that the display is working properly:

1. Turn on your computer. Do not touch the screen during the startup sequence so you

do not interrupt the initialization sequence which affects touch positioning.

2. Make sure the video image is displayed. If it is not, check the LED to ensure that the

display is not in power save mode (orange).

3. Make sure the video image is centered within the screen area. Use the display

controls to adjust the image, if necessary.

You can adjust the horizontal and vertical position, contrast, and brightness to better suit

your video card and your personal preference.

VESA Mounting Option

If you do not want to utilize the stand, you may remove it and use an alternative VESA

mount. The unit has a VESA mounting pattern on the back to allow for arm mount

capability. Refer to the table below for specifics on your display.

Use M4 x 8 mm screws to secure the VESA mount stand. Follow the manufacturer's

instructions included with the mounting device to properly attach your display.3M™ Multi-Touch Desktop Display User Guide 13

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Note: Do not use longer screws as they could potentially damage electronics inside the

Video Card Requirements

Before you connect your touch display, make sure your computer has a video card

installed that supports the native video resolution of your Multi-Touch Desktop Display.

The native resolution for the 18.5 is 1366 x 768 and for the 21.5, 24, and 27 is 1920 x

If you need information on installing a video card or video driver, refer to the manual that

came with your video card.

Using the Standard Controls for the Video Card

In addition to the standard controls on the display, each video card has several controls

that let you adjust the display settings. The software and driver for each video card is

unique. In most cases, you adjust these settings by using a program or utility provided by

the manufacturer of the video card.

For example, you can use the Windows Display Properties control panel to adjust the

desktop area (resolution), color depth, and refresh rate. Whenever you change these

settings, the image size, position, or shape may change. This behavior is normal. You can

readjust the image using the display controls described in this chapter.

For more information on adjusting the desktop area/resolution, color depth, or refresh

rate, refer to the user manual that came with your video card. If you change the

resolution, it is a good idea to calibrate your touch screen.

Supported Video Display Modes and Refresh Rates

Your video card should support one of the display modes specified in Table 1. If you

select an unsupported video mode, the display may stop working or display

unsatisfactory picture quality.

Table 1. Applicable Display Modes and Refresh Rates

Display Mode Refresh Rate (Hz)

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Configuring the Display Settings

After you connect your Multi-Touch Desktop Display and turn on your computer, you

may need to configure one or more of these display settings. The ideal setting for the

Multi-Touch Desktop Display is as follows:

• Display mode (also called desktop area or video native resolution) 1366 x 768 or

• Refresh rate (also called vertical scan rate or vertical sync) 60 Hz

• Color depth (also called color palette or number of colors) at least 16-bit (high color)

The Multi-Touch Desktop Display comes with speakers built into the back of the display

housing and includes audio cables. These cables can be connected underneath the

USB port Audio VGA port HDMI port DisplayPort Power

Access to the Video Controls

This section provides guidelines for adjusting the video display and using the display

controls to adjust the image to your liking. The controls for adjusting the video display

are located on the bottom right of the Multi-Touch Desktop Display. These capacitive

touch buttons let you display the on-screen menu and adjust the phase, image position,

contrast, and brightness. Before you make any adjustments:

• Be sure to adjust the controls in your normal lighting conditions.

• Display a test image or pattern whenever you adjust the video.3M™ Multi-Touch Desktop Display User Guide 15

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Menu/Select —/Decrease +/Increase Cycle/Exit Power

Note: The OSD provides a quick guide to these buttons as shown below. When the OSD is activated,

the image will appear over the buttons for easy reference.

Adjusting the Desktop Video Display

Your Multi-Touch Desktop Display has four controls to adjust the video display.

Menu/Select – Shows or hides the on screen display menu. Select highlights

the current menu option or saves the current setting. Press — (Decrease) or

+ (Increase) to change the value.

— (Decrease) -- Enables you to scroll backwards through items on the menu --

decrease the value of selected option or move to the previous menu item.

+ (Increase) -- Enables you to scroll forward through items on the menu --

increase the value of selected option or move to the next menu item.

• If you do not press the Menu/ Select, or — (Decrease) or + (Increase) buttons for up

to 30 seconds, the display adjustment program times out and hides the menu options.

You can press the Menu button once to display the menu below for quick adjustments.

Pressing Menu button again will pull up the On Screen Display (OSD) menu, as shown

AUTO16 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C OSD Choices Description

SIGNAL SELECT Choices are VGA, HDMI, DP, or Exit

Selects the applicable input source

VIDEO Choices are Brightness, Contrast, or Exit

BRIGHTNESS Selecting the Brightness option will allow you to adjust the

brightness of the display. Adjust the brightness using the + or

- buttons and press SELECT to confirm the new setting.

CONTRAST Selecting the Contrast option increases or decreases the

strength (lightness or dimness) of the image. Adjust the

contrast using the + or - buttons and press SELECT to

confirm the new setting.

AUDIO Adjust the volume of the speakers using the + or – buttons

COLOR Choices are User Defined Color, Preset Color

Temperature, or Exit

USER DEFINED COLOR Adjust the Red, Green and Blue channels to your preference.

COLOR TEMPERATURE Adjusts color temperature to PRESET 1 (6500 color

temperature) or PRESET 2 (9300 color temperature).3M™ Multi-Touch Desktop Display User Guide 17

3M Touch Systems, Inc. Proprietary Information – TSD-40532C OSD Choices Description

IMAGE Choices are Auto Tune, Clock, Phase, H. Position, V.

AUTO TUNE Performs automatic configuration of the Clock, Phase,

Vertical and Horizontal positions.

CLOCK and PHASE If the clock setting of your image is not fine-tuned, you may

observe periodic vertical bars of video noise on your image.

These bars of noise are usually adjusted out when an Auto

Configuration is performed. If the bars of noise are still

present, this setting can be adjusted manually.

Adjust this setting so that either the vertical bars of noise are

replaced by an even amount of noise across the whole screen,

or the noise disappears completely.

If you do an Auto Tune, the display will try to find the best

Clock/Phase setting. If you are not satisfied with the auto

adjustment, fine-tune the clock manually as described above.

H POSITION (Horizontal Position)

Moves image horizontally on screen either left or right.

V POSITION (Vertical position)

Moves images vertically on screen either up or down

LANGUAGE Sets the language for the OSD -- the choices are English,

French, German, Italian, and Chinese18 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C OSD Choices Description

TOOLS Choices are OSD Timing, OSD Horizontal, OSD Vertical

OSD TIMING Adjust how long the menu remains on the screen. Submenu

choices are: Recall, Sharpness, or Exit

OSD HORIZONTAL and VERTICAL Adjusts the position of the OSD on your screen

RECALL Resets the control functions back to the original factory preset

values. In order for the Recall function to work, the timing

must fall under one of the factory preset timing modes.

SHARPNESS Adjusts the video quality to be sharp or blurry (special for text

KEY LOCK Use this to lock the display – the key to unlocking the display

is Menu>up>down>up>down>menu sequence.

Windows® 7 USB Compatibility

3M multi-touch technology works seamlessly with the Windows® 7 operating system.

The Multi-touch display supports USB HID for direct communication. The Multi-Touch

Desktop Display leverages all the multi-touch functionality that is native to Windows® 7.

Plug the display in to a system running Windows® 7 and you’ll quickly enter the world

of true multi-touch functionality.

The Multi-Touch Desktop Display is compatible with Windows 7 with no additional

software. Refer to Microsoft's Windows 7 documentation for additional information.

When using a Windows® 7 serial connection or for Windows XP, Vista or Linux

operating systems (either USB or serial), 3M provides MicroTouch MT 7 Software for

multi-touch drivers. This guide includes information for writing your own drivers to

interface with the 3M Multi-Touch Technology.

For non-Windows 7 operating system users this document provides the communication

protocol necessary to talk directly with the electronics. This enables software developers

using other operating systems such as Microsoft Windows® Vista or Linux® to write

their own drivers and achieve the same multi-touch results.

Multi-Touch Application Support

Remember not all applications are multi-touch ready -- Multi-touch behavior is a function

of YOUR application. Check with your application vendor to determine if your software

has multi-touch capability.20 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Installing 3M™ MicroTouch™ Software

Remember that Windows® 7 does not require any additional software to enable multi-

touch functionality.

However, for Windows® XP, Vista or Linux® operating systems, 3M™ MicroTouch™

Software enables your Multi-Touch Desktop Display to work with your computer. 3M™

MicroTouch™ Software includes a control panel for setting your touch sensor

preferences and a diagnostic utility. If you are experiencing problems with the touch

sensor, you can use the diagnostic utilities provided to test the system.

For more information on installing this software and using the control panel, refer to the

3M™ MicroTouch™ Software User Guide on the accompanying CD or on the corporate

website at www.3m.com/touch

The Multi-Touch Desktop Display has been calibrated prior to shipment and the display

as delivered should not require video alignment. You should be able to accurately touch

icons on the sensor. If for some reason, you cannot do this, the touch sensor’s active area

may not be aligned to the underlying video.

Regardless of the operating system, after you connect your touch display:

 If you are using Windows 7, you may calibrate by accessing the Software Diagnostic

Utility (SDU) found on the enclosed CD.

Launch the SDU from the CD. Select the Tools menu and highlight Calibration. The

screen below appears and you should touch the 2 targets as they appear. Press Escape

to cancel Calibration.3M™ Multi-Touch Desktop Display User Guide 21

3M Touch Systems, Inc. Proprietary Information – TSD-40532C

 If you are using 3M™ MicroTouch™ MT 7 Software, launch the MT 7 Control

Panel and follow the instructions on the Main tab. You'll be asked to touch 3 targets.

 If you are writing your own drivers, you should provide your own video alignment

Use the Paint program (Start> Programs> Accessories> Paint) to determine if you have

multi-touch operation. Retest the accuracy after you perform a calibration.22 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C APPENDIX A

3M™ PX Controller Communications

This appendix is intended for software developers only and discusses the fundamentals of

communicating with the PX controller. The firmware commands, which are usually

issued by a driver or utility program on the host system, control the operation of the

controller. This appendix lists the recommended firmware commands and describes how

to use each of these commands.

Overview of USB Firmware Communications

Developers may use this information when writing touch applications, developing custom

drivers or touch configurations, or testing their touch systems. Developers can issue

commands to initialize the controller, select operating modes, and execute diagnostic

Note: This document assumes you are familiar with USB standards and modes of

communication with USB devices, as well as firmware commands and how to use them.

Executing some commands may alter the performance of your sensor and render it

inoperable. You should be aware of the results before executing any firmware

To optimize the performance of the PX controller and simplify the development of

custom drivers, 3M Touch Systems recommends you use the commands listed in this

appendix for current development.

Communication Basics

This section provides information on sending firmware commands to the controller and

interpreting the responses that the controller returns. The default operation of the PX

controller is USB Rev 2.0 full speed.

The USB command set is implemented by using vendor requests and vendor reports, i.e.,

vendor specific transactions. The controller issues some reports without prompting the

computer. The computer can also send requests to the controller to change how it

operates or receives information about the controller. The controller issues a synchronous

report in response to some of these requests.3M™ Multi-Touch Desktop Display User Guide 23

3M Touch Systems, Inc. Proprietary Information – TSD-40532C You need to know product ID and the vendor ID to write your own driver. These values

are required for identifying the controller. Call 3M Touch Systems for more details.

Receiving Reports from the Controller

The controller sends a variety of reports to the computer. The first byte of each report is

the Report ID that defines the structure and content of the report. The controller sends

some reports as a direct response to a computer request (synchronous). The controller

will also send some reports as the result of an external event, such as a touch

The USB command set is implemented by using HID Get Feature and Set Feature

commands. The various requests and reports are grouped together by report size under a

The following table summarizes the available HID class requests.

Table 1. HID Class Requests Summary

Set Feature - Calibration

This is a command to do a Calibrate Extended style calibration. The controller will auto-

orient on this 2 point calibration.

HID Report Command Name bmRequest

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Table 2. Calibration Setup Stage

0 Report ID 1 0x03 Feature report ID

2 bCalType 1 0x01 0x01 = Extended cal (CX)

3--7 Not used 5 0 Not used

The device stalls endpoint 0 if the command cannot be processed successfully. The

request cannot be processed if an invalid calibration type is given in the wValue field.

The request will also fail if the 2 calibration points do not fall within certain bounds

established by the firmware. These bounds require that the 2 calibration points be in

opposite quadrants of the sensor.

The host should issue a GetStatus request to determine the status of this request. The

status report includes a command status byte which will be set as shown below.

Table 4. Calibration Response

Command Status Byte Description

0 Calibration Failed

1 Controller is waiting for a touch in the lower left corner.

Calibration software paints a target in the lower left corner.

2 Controller is waiting for a touch in the upper right corner.

Calibration software paints a target in the upper right corner.

3 Calibration completed successfully.

The controller does not timeout waiting for touch. Use the soft reset command to abort

Determining Target Areas

The default calibration targets (points) are located 12.5% (1/8) inward from the corners of

the video image. For example, if the resolution of your Windows-based display is 1920 x

1080, the Calibrate Extended command calculates the amount to move inward as follows:

• Amount to move inward in the X direction: 1920 x 1/8 = 240

• Amount to move inward in the Y direction: 1080 x 1/8 = 1353M™ Multi-Touch Desktop Display User Guide 25

3M Touch Systems, Inc. Proprietary Information – TSD-40532C The Calibrate Extended command then positions the first calibration target inward from

the lower left corner (0,1049) and the second calibration target inward from the upper

right corner (1679,0). The following illustration shows how the calibration targets are

calculated for a Windows-based system. Your operating system may be different.

The illustration below shows the coordinates of the calibration targets and display

corners. The corners show the video coordinates in parentheses and the touch screen

coordinates in brackets.

Get Feature - GetStatus

This is a request to send information that indicates the status of the controller. Among the

uses for this request are determining whether there were any power on check errors and

determining whether the last request was completed successfully.

Table 5. Controller Status Setup Stage

Offset Field Size Value Description

(0, 0) [0, 0] (1679, 0) [32767, 0] (240, 914) (1439, 135)26 3M™ Multi-Touch Desktop Display User Guide

3M Touch Systems, Inc. Proprietary Information – TSD-40532C POC Status – The status of the Power-on Checks. Various controller systems are

checked at power-up. If any failures in these systems are detected, a POC flag is set. The

POC status field reports the state of these flags.

Table 7. Power On Check Bit Fields

2 PWM Error Touch screen not connected or potential problem

3 NOV_ERROR Parameter blocks checksum error

4 HDW_ERROR Problem with ADCs

Cmd Status – The status for the last command request. This field is used to determine

whether the last request was processed successfully. It is also used to track the progress

of a multi-stage request, such as 2 point calibration. The Status Request does not affect

the contents of this field, i.e., successful or unsuccessful processing of a previous status

request does not cause the command status field to be updated.

Table 8. Valid Command Status Field Entries

Response Description

0 Failure in command processing

1 Command being processed

2 Stage 1 processing complete (for multi-stage commands)

4 Soft Reset Occurred

5 Hard Reset Occurred

Get Feature - GetMaxCount

This is a request to send information that indicates the maximum number of simultaneous

touches supported by the controller.

Table 9. Setup Stage

Offset Field Size Value Description

0 Report ID 1 0x12 Feature Report ID

1 Max Count 1 0x1E Number of actual fingers supported

Note: The number of actual contacts reported may exceed this number.

This is a request to perform a controller reset. Soft resets are automatic after any block

lsb=03= Feature Report ID

A Hard Reset will cause the controller to re-enumerate.

In the case of a Soft Reset, after sending the command, the controller will acknowledge

(ACK) the transfer, but the command will not yet be completed. Before sending any other

commands, the host should poll with GetStatus until the command status field returns

“Soft Reset Occurred,” “Command Complete,” or “Fail”. Any timeout for this status

polling should be 2 seconds minimum.

Set Feature –Restore Defaults

lsb=03= Feature Report ID

After sending this command, the controller will acknowledge (ACK) the transfer, but the

command will not yet be completed. Before sending any other commands, the host

should poll with GetStatus until the command status field returns “Command Complete”

or “Fail”. Any timeout for this status polling should be 2 seconds minimum.

Asynchronous Reports

Coordinate Data – Multi-Touch Digitizer mode Async Report 0x13

This is used to transfer the coordinate data to the host. This report, when activated, is

sent to the host whenever new data is available/scheduled for transmission. It is an

asynchronous report that is activated by default at power up. See SetAsyncReport for

details on how to activate/deactivate an asynchronous report.

The report shown supports up to 6 simultaneous touches. Note that if more than 6

touches were to be supported, Report 0x13 would be sent as many times as necessary to

accommodate the number of fingers touching. Only the first Report 0x13 will have a non-

zero actual count. Each valid touch is marked with an ID number that remains the same

from touchdown thru liftoff. The ID number can be any value from 0 to 255. Ignore all

other data within a touch report structure with a status marked “not valid”.

The coordinate system is Upper Left origin.

Table 15. Coordinate Data Report 0x13 --Data Stage

61 Actual Count 1 1 to 60 Number of valid touch reports

3M Touch Systems, Inc. Proprietary Information – TSD-40532C APPENDIX B Regulatory Information

Regulatory Agency Approvals

Your product complies with the following regulatory standards:

• RoHS/WEEE directives

This equipment has been tested and found to comply within limits for a Class B digital

device, pursuant to Part 15 of the FCC rules. These limits are designed to provide

reasonable protection against harmful interference in residential installations. This

equipment generates, uses, and can radiate radio frequency energy, and if not installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause interference to radio or television

equipment reception, which can be determined by turning the equipment off and on, the

user is encouraged to try to correct the interference by one or more of the following

• Reorient or relocate the receiving antenna.

• Move the equipment away from the receiver.

• Consult the dealer or an experienced radio/television technician for additional

CAUTION You are cautioned that any change or modification to the equipment not expressly

approved by the party responsible for compliance could void your authority to operate

This Class B digital apparatus meets all requirements of the Canadian Interference-

Causing Equipment Regulations.3M™ Multi-Touch Desktop Display User Guide 31

3M Touch Systems, Inc. Proprietary Information – TSD-40532C Cet appareil numérique de la classe B respecte toutes les exigences du Règlement sur le

matériel brouilleur du Canada.

This device complies with Part 15 of the FCC rules: Operation is subject to the following

two conditions: (1) This device may not cause harmful interference, and (2) this device

must accept any interference received, including interference that may cause undesired

To assure continued FCC compliance, the user must use grounded power supply cord and

the provided shielded video interface cable with bonded ferrite cores. If a BNC cable is

going to be used, use only a shielded BNC(5) cable. Also, any unauthorized changes or

modifications not expressly approved by the party responsible for compliance could void

the user’s authority to operate this device.

3M Touch Systems is not responsible for any radio or television interference caused by

using other than recommended cables and connectors or by unauthorized changes or

modifications to this equipment.

CE Conformity for Europe

The device complies with the requirements of the ECC directive 2004/108/EC with

regard to “Electromagnetic compatibility” and 2006/95/EC with regard to "Safety".