3M Touch Screen Controller EX II Reference Guide

™

MicroTouch

™

Controller EX Serial

Reference Guide

For EX122 and EX112

Read and understand all safety information

contained in this document before using this product.

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2 3M™ MicroTouch™ Controller EX Serial Reference Guide

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 Systems, Inc. 3M may have patents or pending patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. The furnishing of this document does not give you license to these patents, trademarks, copyrights, or other intellectual property except as expressly provided in any written license agreement from 3M Touch Systems, Inc.

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 2005/95/EC" 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 diphenyl ethers; or (b) 0.01% (by weight) for cadmium. This information represents 3M’s knowledge and belief, which may be 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

“Product”), including that solid state equipment has operation characteristics different from electromechanical equipment, some of which factors are uniquely within User’s knowledge and control, it is essential that User evaluate the 3M Touch Systems, Inc. Product and software to determine whether it is suitable for User’s particular purpose and suitable for User’s method of application. 3M Touch Systems, Inc. statements, engineering/technical information, and recommendations are provided for User’s convenience, but their accuracy or completeness is not warranted. 3M Touch Systems, Inc. products and software are not specifically designed for use in medical devices as defined by United States federal law. 3M Touch Systems, Inc. products and software should not be used in such applications without 3M Touch Systems, Inc. express written consent. User should contact its sales representative if User’s opportunity involves a medical device application.

IMPORTANT NOTICE TO PURCHASER: Specifications are subject to change without notice. These 3M Touch Systems,

Inc. Products and software are warranted to meet their published specifications from the date of shipment and for the period

stated in the specification. 3M Touch Systems, Inc. makes no additional warranties, expre ss or implie d, including but not limited to any implied warranties of merchantability or fitness for a particular purpose. User is responsible for determining

whether the 3M Touch Systems, Inc. Products and software are fit for User’s particular purpose and suitable for its method of production, including intellectual property liability for User's application. If the Product, software or software media is proven not to have met 3M Touch Systems, Inc. warranty, then 3M Touch Systems, Inc. sole obligation and User’s and Purchaser’s

exclusive remedy, will be, at 3M Touch Systems, Inc. option, to repair or replace that Product quantity or software media or to

refund its purchase price. 3M Touch Systems, Inc. has no obligation under 3M Touch Systems, Inc. warranty for any Product, software or software media that has been modified or damaged through misuse, accident, neglect, or subsequent manufacturing

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action against it in any way related to the Products or software for any loss or damages, whether non-specified direct, indirect, special, incidental or consequential (including downtime, loss of profits or goodwill) regardless of the legal theory asserted.

MicroTouchTM Controller EX Serial Reference Guide

Document Number: 29087, Version 03

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.

All other trademarks are the property of their respective owners.

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3M™ MicroTouch™ Controller EX Serial Reference Guide 3

Contents

Chapter 1 Introduction

What You Need to Know ........................................................................................... 5

Important Safety Information ..................................................................................... 5

Sensor Care and Cleaning .......................................................................................... 6

3M Touch Systems Support Services ......................................................................... 7

Contact 3M Touch Systems ....................................................................................... 7

Chapter 2 Integrating 3M™ MicroTouch™ EX Serial Controllers

Overview of the EX Serial Controllers ...................................................................... 9

Handling and ESD Protection .................................................................................. 10

EX Serial Controller Communication Connections ................................................. 10

EX122 Sensor Cable Connections ........................................................................... 11

EX112 Sensor Cable Connections ........................................................................... 11

Mounting the Controller ........................................................................................... 11

Supplying Power to the Controller ........................................................................... 12

Mounting the Sensor ................................................................................................ 13

Turning On Your System ......................................................................................... 13

Status Light (LED) Diagnostics ............................................................................... 13

Installing 3M™ MicroTouch™ Software ................................................................ 15

Chapter 3 3M™ MicroTouch™ EX Serial Controller Communications

Overview of Firmware Commands .......................................................................... 17

Controller Default Settings ....................................................................................... 18

Communicating with the Controller ......................................................................... 18

Firmware Commands ............................................................................................... 20

Calibrate Extended ................................................................................................... 21

Calibrate Raw ........................................................................................................... 24

Diagnostic Command ............................................................................................... 25

Format Raw .............................................................................................................. 25

Format Tablet ........................................................................................................... 27

Mode Stream ............................................................................................................ 28

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4 3M™ MicroTouch™ Controller EX Serial Reference Guide

Name Command ....................................................................................................... 28

Null Command ......................................................................................................... 28

Output Identity ......................................................................................................... 29

Parameter Set ............................................................................................................ 29

Reset ......................................................................................................................... 30

Restore Defaults ....................................................................................................... 30

Unit Type Verify ...................................................................................................... 31

Appendix A EX122 Controller Specifications

Technical Specifications ........................................................................................... 34

Physical Dimensions ................................................................................................ 34

Appendix B EX112 Controller Specifications

Technical Specifications ........................................................................................... 38

Physical Dimensions ................................................................................................ 38

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3M™ MicroTouch™ Controller EX Serial Reference Guide 5

CHAPTER 1

Introduction

3M Touch Systems offers several advanced controllers designed for reliability and easy installation. Each controller provides superior performance and delivers excellent stability, sensitivity, accuracy, and fast response.

This reference guide, designed for developers of touch systems, provides installation and configuration information for the 3M™ MicroTouch™ EX serial capacitive touch controller. This document includes information on integrating the EX serial controller into your design, communicating with the controller, installing the MT 7 software user interface, and troubleshooting setup problems. It also includes a complete description of the firmware commands and controller specifications.

3M Touch Systems is committed to being a premier supplier in touch systems throughout the world. As a 3M Touch Systems customer, you are aware that we have strong internal programs that meet or exceed environmental regulations of our customers and the regions in which we conduct business.

What You Need to Know

This document assumes you are familiar with firmware commands and how to use them. Executing some commands may alter the performance of your touch product. You should be aware of the results of using these commands before executing them.

Important Safety Information

Read, understand and follow 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.

Intended Use

The EX serial controller was designed to enable surface capacitive touch in conjunction with other 3M™ MicroTouch™ sensor products and was tested to replace an existing serial controller. This controller is intended for internal mounting only and is not suitable for use in hazardous locations.

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6 3M™ MicroTouch™ Controller EX Serial Reference Guide

Explanation of Signal Word Consequences

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.

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

result in property damage.

WARNING

To reduce the risk of fire and/or explosion which could result in serious injury or death:

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

To reduce the risk of fire and/or explosion which could result in serious injury or property damage:

Do not use this product in any outdoor environment unless NEMA standards (or similar standards such as IP rating) are followed.

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

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

CAUTION

To reduce the risks associated with improper disposal, which if not avoided may result in minor or moderate injury from ground water contamination:

Dispose of components in accordance with federal, state and local regulations.

To reduce the risk of possible environmental contamination which may result in minor or moderate injury:

Dispose of the display in accordance with federal, state and local regulations.

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

Sensor Care and Cleaning

The sensor requires very little maintenance. 3M Touch Systems recommends that you periodically clean the glass surface.

CAUTION

To reduce the risk of the potentially hazardous situations associated with the use of isopropyl alcohol which may result in minor or moderate injury or property damage:

Follow all instructions and recommendations in the alcohol manufacturer's Material Safety Data Sheet and product label.

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3M™ MicroTouch™ Controller EX Serial Reference Guide 7

Typically, an isopropyl alcohol and water solution ratio of 50:50 is the best cleaning agent for your sensor. You can also use straight isopropyl alcohol. Be sure to follow solvent manufacturer's precautions and directions for use when using any solvents.

 It is important to avoid using any caustic chemicals on the sensor.  Always dampen the cloth and then clean the screen. Be sure to spray the cleaning

liquid onto the cloth, not the screen, so that drips do not seep inside the display or stain the bezel.

 Apply the cleaner with a soft, lint-free cloth. Avoid using gritty cloths.  Always handle the sensor with care. Do not pull on or stress flex tail.

3M Touch Systems Support Services

3M Touch Systems provides extensive support services through our website and technical support organization. Visit the 3M Touch Systems website at

http://www.3M.com\touch

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

, where you can download touch software and drivers, obtain

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 Technical Support (US only -- Eastern Standard Time) by calling the hot line, sending email or a fax.

 Technical Support Hot Line: 978-659-9200  Technical Support Fax: 978-659-9400  Toll Free: 1-866-407-6666 (Option 3)  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/

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3M™ MicroTouch™ Controller EX Serial Reference Guide 9

CHAPTER 2

Integrating 3M™ MicroTouch™ EX Serial Controllers

The 3M™ MicroTouch™ EX serial controller provides a drop-in replacement for an existing controller with wide dynamic range, increased noise immunity, wide operating temperature stability, reprogrammability using software utilities and improved capability in ungrounded environments.

The EX122 and EX112 series capacitive controller firmware is optimized for surface capacitive sensors integrated in the latest flat panel displays.

This chapter covers the following EX serial controller specifications:

 Cable connections  Mounting requirements  Power requirements and options  Status LED codes

Overview of the EX Serial Controllers

Note: For complete specifications for each of these EX serial controllers, refer to the

appendices at the end of this manual.

The EX serial controllers and sensors are supplied separately. A 25-point linearization procedure has been performed to determine the physical properties of the sensor, and the data is stored in a 2D bar code label attached to the flex tail.

 The EX122 is available in N81 or N72, Format Tablet, cased or uncased for either

external or internal mounting.

 The EX112 is available in N81 Format Tablet uncased without cable for mounting

within a custom chassis.

To integrate and test the EX serial controller, you need the following items:

 A 3M™ MicroTouch™ surface capacitive sensor. These sensors are available in a

variety of sizes.

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10 3M™ MicroTouch™ Controller EX Serial Reference Guide

—

 A method of establishing the serial data communication between the controller and

your system. The standard 3M™ MicroTouch™ RS-232 serial cable (P/N 7310101) is recommended.

 A method of supplying power to the controller -- either internal or external.  A touch driver with a calibration routine. You can use 3M™ MicroTouch™ MT 7

software which includes the necessary touch driver and utilities software.

Handling and ESD Protection

When mounting the sensor and controller, use normal precautions for handling electrostatic sensitive devices. The EX serial controllers have internal protection to ±27kV for ESD discharges to the sensor (not to the controller directly) that may occur during normal operation of the sensor. Refer to the appendices for further specifications.

EX Serial Controller Communication Connections

You will need a method of establishing the serial data communication between the controller and your system. You can build your own or purchase the standard 3M™ MicroTouch™ RS-232 serial cable (P/N 7310101). Table 1 describes the pins for this cable, which connects to a serial communication (COM) port on the PC.

Table 1 COM Connections for EX Serial Controllers 9-pin D 7-pin Molex Wire Color Description

connection

—— Data Carrier Detect (DCD).

Connected to DTR and DSR.

2 2 Brown Transmit Data (TXD). Pin 2 is the controller’s

output to the host.

3 3 Red Receive Data (RXD). Pin 3 is the controller’s

receive from the host.

connection

—— Data Terminal Ready (DTR).

Connected to DSR and DCD. 5 5 Blue Power supply ground. 6

connection

—— Data Set Ready (DSR).

Connected to DTR and DCD. 7 1 Black Request To Send (RTS).

Connected to CTS. 8 4 Green Clear To Send (CTS).

Connected to RTS. 9

ot used Sleeve 6 White DC power jack (+5 VDC). Pin 7 Shield Cable shield connected to ground

DC power jack (ground)

Shell 7

—— Chassis (earth) ground.

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3M™ MicroTouch™ Controller EX Serial Reference Guide 11

—

EX122 Sensor Cable Connections

The sensor cable has a 12-pin (2 x 6) dual row female connector that plugs into the controller. Table 2 describes the pins on this connector. The sensor connector always exits towards the serial cable.

Table 2 Sensor Cable Connector for EX122 Controllers Pin Wire Color Description

1 2

3 4 5 6 7 8 Brown Cable

9 10 11 12

—— ——

——

—— +5 VDC Gray Green Orange

shield/drain wire

White Red Black Blue

OVRAM interface OVRAM interface

OVRAM interface

Power supply ground Chassis (earth) ground +12V input Connects to the flex tail shield, which must not be grounded because the EX122 drives the flex tail shield with an AC waveform. Upper right (UR) corner Lower right (LR) corner Upper left (UL) corner Lower left (LL) corner

EX112 Sensor Cable Connections

The sensor cable has a 5-pin single row locking female connector that plugs into the controller. Table 3 describes the pins on this connector.

Table 3 Sensor Cable Connector for EX112 Controllers Pin Wire Color Description

1 Upper left (UL) corner 2 Upper right (UR) corner 3 Cable shield/drain

wire

4 Lower right (LR) corner 5 Lower left (LL) corner

Mounting the Controller

The cased controller is mounted externally. The uncased controller is mounted internally. Choose a convenient spot away from high-voltage, high power cables and electronics. Use 4-40 plastic screws to mount the cased controller to eliminate possible ESD input path. Metal or plastic screws can be used on the 2x3 board if the green ground wire is used. Metal screws are required on the 1x2 board if a separate ground wire is not used.

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Connects to the flex tail shield, which must not be grounded

because the EX112 drives the flex tail shield with an AC waveform.

12 3M™ MicroTouch™ Controller EX Serial Reference Guide

The controller should be mounted in line with the sensor flex tail exit point to minimize flexing. Refer to Figure 1 for more details on controller mounting.

Supplying Power to the Controller

You must supply the EX serial controller with power. You can use internal power (that is, tap power from inside the display or PC) or external power.

However you supply power, the source must deliver 85 mA typical (110 mA maximum), with a maximum ripple and noise of 50mV peak-to-peak.

CAUTION

To avoid possible damage to the controller, you must provide a path for electrostatic

discharge. The controller-mounting hole near the sensor connector should be used to connect to chassis safety ground and must be attached by the shortest possible route to a good earth return (chassis) in all applications.

You can supply power to the controller using any of the following methods. The voltage input can vary from +5VDC to +12VDC. Exact specifications can be found in the appendices.

 (EX112 only) Internal power +5V to +12 V DC through the 2-pin power input

connector pin 2 (+5V to 12 V) and pin 1 (RTN). A square pin indicator on the bottom of the board marks pin 1.

 Internal power (+5V to +12V DC) through a custom serial cable configuration.  External power (+5 V DC) from a wall-mount power supply.

Note: To avoid possible damage to one or both of the power supplies, do not supply

both internal power and external power to the controller. Power from two sources could cause damage.

Using an Internal Power Supply (+5V to +12V) to JP3

Provide power directly to the controller using JP3 (Molex 22-05-3021). Use a mating 2pin connector and connect Pin 2 to power (between +5V and +12V) and Pin 1 to the return. (Mating connector is the Molex housing 22-01-3027 with 08-50-0114 contacts).

Using a Custom Serial Cable Design

When creating a custom serial cable connection, you can provide power to the controller through the mating Molex connector: (refer to Table 12 for more information on actual cable connections).

1. Obtain a 7-pin Molex connector 51004-0700.

2. Attach power and ground to the connector, (Pin 6: +5V to +12V, Pin 7: Ground).

Using an External Wall-Mount Power Supply

If you are using a standard 3M™ MicroTouch™ RS-232 serial cable (P/N 7310101), consult your applications engineer for power supply specifications.

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