AccuTouch® Product Manual Revision H P/N 821615-000 Elo TouchSystems, Inc. 1-800-ELOTOUCH www.elotouch.
Copyright © 1988, 1992, 1994, 1995, 2001, 2005 by Elo TouchSystems, Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, including, but not limited to, electronic, magnetic, optical, chemical, manual, or otherwise without prior written permission of Elo TouchSystems. The information in this document is subject to change without notice.
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List of Figures AccuTouch Touchscreen . . . . . . . . . . . 18 USB Controller Installation . . . . . . . . . 24 External Serial Controller Installation . 26 PC-Bus Controller Installation . . . . . . . 28 Typical AccuTouch Touchscreen Installation (for use with external controller) . . . . . . . . . . . . . . . . . . . . . . . 33 Bezel design 3 . . . . . . . . . . . . . . . . . . . . . 4 Rear View of an AccuTouch Touchscreen with Mounting Materials . . . . . . . . . . .
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LIMITED WARRANTY CHAPTER0 (a) Elo TouchSystems, Inc.
repairing the Product or (ii) replacing the Product. Such modification, repair or replacement and the return shipment of the Product with minimum insurance to Buyer shall be at Seller's expense. Buyer shall bear the risk of loss or damage in transit, and may insure the Product. Buyer shall reimburse Seller for transportation costs incurred for Products returned but found by Seller not to be defective.
FCC Notice 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 operation. UL Notice Elo PC-Bus controllers are for use only with IBM or compatible UL Listed personal computers that have installation instructions detailing user installation of card cage accessories.
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Table of Contents Chapter 1 Introducing Touchscreens . Driver Software . . . . . . Shipping Damage . . . . . Care and Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 14 14 15 Introduction . . . . . . . . . The AccuTouch Touchscreen The AccuTouch Controllers . Driver Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 18 20 20 Disassembling the Display . . . . . . . . . .
2210 Serial Controller. . . . . . . . . 3000U USB Controller . . . . . . . . 2201 PC-Bus Controller. . . . . . . . Diagnostic Codes . . . . . . . . . . . . DB9 and DB25 Connector Pin Positions . . . . . . . . . . . 76 77 77 78 79 Open Circuit Resistance . . . Closed Circuit Resistance . . Breakdown Voltage . . . . . Agency Approvals. . . . . . . . UL Compliance . . . . . . . Ball Impact Compliance . . . Fire Retardation Compliance CE Compliance . . . . . . . FCC . . . . . . . . . . . . .
C H A P T E R INTRODUCTION CHAPTER1 Introducing Touchscreens Touchscreens are the ultimate operator/machine interface. In a touchscreen system, you touch what you see. The computer responds. The human action and the computer's reaction is simple, direct, and natural. Using touchscreens, workers can control complicated processes. People who have never used a computer before can interact easily with a touchscreen-based system.
Because of its many unique features, the AccuTouch touchscreen is ideally suited for retail and restaurant point-of-sale, medical, instrumentation, and process control applications. In fact, the AccuTouch touchscreen is used in more applications than any other touchscreen. Driver Software Elo driver software provides a consistent software interface among all Elo touchscreens and controllers.
Care and Cleaning Handle the touchscreen with reasonable care when not integrated into a monitor. Do not pull or stress the cables. Clean the touchscreen with Isopropyl 99% and lint free wipes. Always dampen the wipes and then clean the touchscreen. For operating and storage specifications, refer to Appendix C.
1-16 Elo Entuitive Touchmonitor
C H A P T E R TOUCHMONITOR INSTALLATION CHAPTER3 Elo purchases and resells a variety of monitors, called Touchmonitors, both CRT and LCD, with touchscreens and all related components fully installed. If you are installing components rather than a touchmonitor, proceed to Chapter 4, install your touchscreen components, then return to this chapter. Touchmonitor Benefits Touchmonitor benefits include: • Single source for touchscreen and display. • Professionally engineered touchscreen installation.
Touchmonitor Configurations This chapter assumes you have one of the following: • A touchmonitor with an internal 2210 serial controller. • A touchmonitor with an internal 3000U USB controller. • A touchmonitor with one of the following external controllers: • 2210MX serial controller. • 2201 PC-Bus controller. Touchmonitors with an internal serial controller typically have a DB9 female RS-232 connector on the back of the touchmonitor.
Next, refer to the appropriate page to continue your installation: Controller Configuration Page 2210 3000U 2210 2201 Touchmonitor with Internal Serial Controller Touchmonitor with Internal USB Controller 2210MX External Serial Controller PC-Bus Controller 23 24 25 27 Touchmonitor with Internal Serial Controller Contents This configuration includes a touchmonitor with an internal 2210 serial controller and a serial cable. Actual configuration may vary due to third-party integrations.
Touchmonitor with Internal USB Controller Contents This configuration includes a touchmonitor with an internal 3000U USB controller. Installation Note: You can leave your computer on when you connect to a USB port. The 3000U USB controller is internal to the monitor and is shipped preconfigured for use with Elo software. Complete this step: 1 Plug the USB cable exiting the touchmonitor into a USB port on the computer. Proceed to “Where to Go from Here” on page 3-30.
2210MX External Serial Controller Contents This configuration includes a 2210 serial controller in a small enclosure with a keyboard power tap or external power supply and connecting cables. Installation Complete these steps: 1 Configure the controller 2 Connect the touchscreen controller and the supplied cables. Configure the Controller The controller is shipped preconfigured for use with Elo software. No changes are necessary for most users.
4 Plug the keyboard cable into the female connector on the Y end of the adapter cable. 5 Plug the other end of the adapter cable into the connector on the serial cable. 6 Plug the DB9F end of the attached serial cable into a serial port. 7 Proceed to “Where to Go from Here” on page 3-30. Complete the following steps if you are using a wall mount power supply: 1 Two different wall mount power supplies are available.
PC-Bus Controller Contents This configuration includes the 2201 PC-Bus controller and a touchscreen cable. Installation Complete these steps: 1 Configure the controller. 2 Install the controller in your PC and connect the touchmonitor. Configure the Controller The controller is shipped preconfigured for use with Elo software. Except for the Base I/O Port and Interrupt (IRQ) settings, no changes are necessary for most users.
7 Insert the touchscreen controller into the expansion slot. The controller should seat fully into the slot and the access bracket should mate with the frame of the computer. 8 Replace the access bracket retaining screw, insuring that the controller remains seated in the socket. 9 Replace the computer's cover. 10 Plug the DB9 female end of the supplied touchscreen cable into the DB9 male connector labeled "Touchscreen Interface" on the back of the touchmonitor case.
other elements that can confuse the user and interfere with usability and efficiency. 4 Turn the cursor off—your user will focus on the entire screen instead of the arrow. A cursor on the screen makes the user subconsciously think, “How do I get the arrow to do what I want?” Remove the cursor, and the user’s thinking and action will be direct instead of indirect, unlocking the true power of touchscreens. 5 Always give your users feedback as soon as they touch the screen.
Where to Go from Here The hardware installation is now complete. Load the Elo driver specific to your operating system If you will be writing your own driver program, see the SmartSet Touchscreen Controller Family Technical Reference Manual available at www.elotouch.com/support/dwnldmnls.asp for step-by-step instructions on this process. Machine-independent source code is included on a companion disk along with a setup utility.
C H A P T E R COMPONENT INSTALLATION CHAPTER4 Elo purchases and resells a variety of monitors, called touchmonitors, with touchscreens and all related components fully installed. If you already have a touchmonitor, follow the installation instructions in Chapter 3. If you do not have a touchmonitor, read this chapter for details on installing touchscreen components that will convert your monitor into a touchmonitor. Details are given on mounting the touchscreen, controller, and connecting cables.
Safety Information WARNING: The touchscreen installation procedure outlined in this chapter may require exposure to high-voltage components and handling of the CRT. This procedure can be dangerous and an accident is potentially lethal. Therefore, the procedure should only be performed by a qualified person. Read this entire chapter before attempting a touchscreen installation. Follow the procedure carefully, work with the power off and the unit unplugged, observe all warnings, and wear protective clothing.
Getting Started AccuTouch touchscreens can be installed on most types of monitors. Figure 4-1 shows a typical installation. Figure 4.1 Typical AccuTouch Touchscreen Installation (for use with external controller) AccuTouch touchscreens are available for most monitors. Each monitor may pose unique installation issues. Although your monitor may not be a standard touchmonitor product from Elo, we may have had some experience with it. Contact Elo Technical Support for more information.
Without prior approval of the monitor manufacturer, you will probably void the monitor's warranty by disassembling it. Also, it will be necessary to recertify the monitor and touchscreen system for regulatory agencies (such as FCC, UL/CSA, TÜV, CE, etc.) if those certifications were originally present and need to be maintained for your intended application. (Elo offers touchmonitors with full agency approvals.) Handle the touchscreen with care. Avoid excessive handling and stress on the touchscreen cable.
Installation Steps The installation process consists of the following steps: • Disassembling the monitor. • Attaching the touchscreen to the CRT. • Installing transient protection. • Optionally installing an internal serial controller. • Interfacing the touchscreen or serial data cables to the exterior of the monitor. • Reassembling the monitor. • Optionally sealing the monitor. Specific compatibility may not be confirmed until well into the installation.
Disassembling the Display Disassemble the monitor on a large, well-lit work surface. Leave space to set aside major monitor components. Group screws and other hardware in small containers or in specific areas on the work surface as you remove them, in relation to the part of the monitor where you are working. If you complete the installation process in one session (which may require several hours for your first efforts), it is unlikely that you will have trouble reassembling the monitor.
Discharging the CRT WARNING: Dangerous voltages may be present on the CRT anode. The anode may retain a very dangerous voltage even after the monitor has been off for days. Accidental contact with the anode lead or anode button (the small hole in the CRT glass where the anode lead is attached) prior to discharge may result in a potentially lethal shock. Follow the procedure below carefully to avoid injury.
Removing the Electronics Chassis Continue disassembling the monitor until the face of the CRT is completely exposed. The degree of disassembly required will vary from monitor to monitor. Normally the next step will be to remove the electronics chassis from the monitor. This requires removal of a small circuit board that is usually plugged into the socket on the end of the CRT. The circuit board is often glued to the CRT socket with a soft adhesive which must be cut away to remove the board.
After disconnecting any necessary cables, remove the screws that attach the electronics chassis to the bezel. Note the bezel is essentially where all parts of the mechanical assembly are attached, unless you have a rare unit that has an internal frame. As you pull the chassis away from the bezel, make sure that cables and circuit boards do not hit the neck of the CRT and that nothing becomes caught on the adjustment rings or other components on the neck of the CRT.
• It may be necessary to cut the ribs and struts inside the bezel. Cutting these ribs and struts does not usually cause difficulties, although the stiffness of the bezel may be reduced slightly. Try not to cut into the posts for the CRT attachment screws. Bezel and tube combinations that require this cut are rare. • Generally, a total clearance between the edge of the touchscreen and any ribs or struts of at least 1/4-inch (6 mm) in both axes is necessary.
• Creating enough space between the CRT and the bezel to accommodate the touchscreen. Adequate spacing can normally be accomplished by: 1 trimming or milling the inside of the bezel 2 using spacers to move the CRT back in the chassis 3 using spacers to move the bezel away from the touchscreen. A combination of moving the CRT back with spacers and trimming the bezel is the usual solution.
Figure 4.3 Rear View of an AccuTouch Touchscreen with Mounting Materials Before mounting the touchscreen, clean the face of the monitor and the back of the touchscreen with household glass cleaner. Be sure to remove all fingerprints. The space between the touchscreen and the monitor face must be clean and free of any foreign objects. Mount the touchscreen as follows: • Use two layers of the double-sided adhesive tape to achieve a total thickness of 1/16-inch (2 mm).
• Cut and place the foam sealing tape on the back of the touchscreen to form a dust seal as shown in Figure 4.2 on page 4-34. This seal is particularly important because the CRT is a good electrostatic precipitator and will attract dust. The adhesive tape and foam sealing tape should form a complete seal around the touchscreen. Do not leave any gaps. The sealing tape should not be visible when the monitor is reassembled.
Spacing the CRT from the Bezel The last part of the touchscreen mounting procedure is to determine the appropriate spacing of the CRT from the bezel, (with the touchscreen attached), and to reinstall the CRT with the required spacers in place (refer to, Figure 4.1 on page 4-33.) Do not clamp the touchscreen between the bezel and the CRT without proper spacers as breakage will almost certainly occur. The nominal thickness of the touchscreen and the two layers of adhesive tape is 3/16-inch (5 mm).
Select spacers to allow the touchscreen to just touch the bezel. If the bezel is in contact in some areas and not in others, be wary of warping the bezel to achieve uniform contact by using thinner spacers. While mounting tape will provide some compliance and the touchscreen may also flex slightly, shipping damage may occur.
Transient Protection WARNING: Lack of transient protection may produce a dangerous shock hazard. Touchscreen damage resulting from transient discharge is not covered by the Elo warranty. Procedures discussed in this section must be followed to maintain safety and assure reliability of the touchscreen system. When an AccuTouch touchscreen is installed on a monitormonitor, the combination becomes a capacitor which stores an electric charge.
Figure 4.4 Side View of an AccuTouch Touchscreen Installation Controller Interface Options Elo offers PC-Bus and serial (RS-232) controllers for AccuTouch touchscreens. The serial controller may be purchased in a Tabletop enclosure (see Chapter 3) or as components. This section includes a procedure for installing a CTR221000-AT-SER serial controller inside the monitor.
Internal Controllers An AccuTouch internal controller mounting kit is available from Elo. P/N 734849-000 is for use with 2210 controllers. P/N 310900-000 is for use with 3000U controllers. These kits are useful together with the touchscreen installation kit (P/N 458095-000) for identifying preferred materials for your own procurement. The controller mounting kit may also be cost-effective and convenient when purchased for a limited number of installations. Figure 4.
• Space for an internal +5 Vdc power supply if required. The 2210 controller power requirements are: 65 mA @ +5Vdc ± 10% standby, 160 mA average with touch, 240 mA peak. Elo offers a 100 to 240 Vac international power supply (P/N 742067-000) for use with the AccuTouch serial controller. The 3000U USB controller does not require a power supply as it gets its power from the USB bus. See the SmartSet Touchscreen Controller Family Technical Reference Manual available at www.elotouch.com/support/ dwnldmnls.
3 Enable the controller’s on-board transient protection. This may be accomplished one of two ways: • If the controller can be mounted to a metal chassis, it can be grounded through one of the plated-through mounting holes by using one of the No. 6 sheet metal screws and spacers provided in the kit. Use either of the holes marked "PTH" in Figure B.2 on page B-83 .
• Mounting the cable to the plastic case. Plastic cases are usually rather thick, making it necessary to mount the flange of the connector on the outside of the case. This is cosmetically less acceptable than an inside mount and there is less support for the serial cable. Also the standard DB9 hole may not provide adequate clearance for the connector. Avoid mounting to curved surfaces if possible as hole punching is more difficult and mounting hardware will warp the connector when tightened.
3 Mount the USB I/O assembly (PN 250103) at the back of the display. The USB I/O assembly connector shell must be grounded to satisfy safety agency approvals, as the grounding protects the user in case a wiring fault develops in the display. Attach the ground wire supplied in the kit to one of the USB I/ O assembly’s mounting screws and the other end to chassis ground if the shell is not already grounded. Note: The USB I/O assembly will fit the same size cutout as a DB9 connector.
External Controllers Installing the 2210MX Serial Controller Using the 2210MX external serial controller may simplify the overall integration process. Begin by deciding where to mount the controller on the rear of the display case. The dimensions of the enclosure are 4.14 in x 2.34 in x 0.9 in. Provide room for easy access and installation of all cables. Complete the following steps to install the controller: 1 After choosing a location, drill a 0.
Complete the following steps if you are using a keyboard power tap: Caution: Before using a keyboard power tap, be sure sufficient power is available for the touchscreen controller or damage may occur to the computer. Caution Before connecting a keyboard power tap to the controller, be sure that power to the computer is OFF. Connecting a keyboard power tap to a powered computer may seriously damage the computer or the controller. 1 Two different keyboard power taps are available.
• Mounting the P/N 899389-000 cable to a concealed chassis member, with a hole in the exterior of the case (usually plastic) to provide access to the connector. This technique also requires a metal punch to mount the DB9 connector, but the plastic case hole can often be routed, nibbled, or punched with simple tools, and usually provides a neat appearance. This is also an excellent functional solution as the back case is again very simple to reassemble.
Routing the Touchscreen Cables The internal cable(s) that carry the analog touchscreen signals are subject to interference from various sources within the monitor. The routing of these cables should avoid the following areas, listed in order of importance: • the flyback transformer • the anode lead • the inverting section of the power supply (most monitor power supplies are switching power supplies, and the main DC to AC inversion section produces most of the noise).
Reassembling the Monitor With the touchscreen mounted, and the cable routing and exterior interface determined, the monitor must be reassembled. Reassembly is generally in reverse order of disassembly. Beware of potential clearance problems between the bell of the CRT and the electronics chassis, as shorts in this area can produce catastrophic failures of the monitor.
Sealing the Monitor If dirt and dust seals are all that are necessary for your application, you may easily apply open cell foam material, similar to that used between the touchscreen and the monitor, between the touchscreen and the bezel. If the seal contacts the active area of the touchscreen, avoid compression of the seal sufficient to change the open circuit resistance. This can be monitored during installation by connecting an ohmmeter between pins 1 and 3 of the touchscreen cable.
Flat Panel Display Integration While much of this chapter applies specifically to touchscreen integration on CRT-based monitors, most of it also applies to integration on liquid crystal monitors (LCD’s), electroluminescent (EL) monitors, and plasma monitors. However, there are additional specific issues when integrating each type of flat panel monitor: • Transient Protection - Additional transient protection beyond what is provided by an Elo touchscreen controller is not necessary.
4-60 Elo Entuitive Touchmonitor
A P P E N D I X TROUBLESHOOTING GUIDE CHAPTER4 If you experience operational difficulties with the touchscreen system either during or after installation, the following sections will help you determine the source of the problem. The Troubleshooting Process The first step in troubleshooting a touchscreen system is to determine whether the problem is related to the display, software, or hardware: • Do not confuse display problems with touchscreen problems—the two are unrelated.
Display Problems If you are experiencing display problems (such as no video, no horizontal or vertical synchronization, raster non-linearities, etc.), remember that the video function of the display and the Elo touchscreen installed on the display are separate systems. Therefore, problems with the display should be treated as display problems, not touchscreen problems.
Video Alignment Problems If the touchscreen is responding and the data is linear, but a touch does not activate the appropriate zone in the application, try realigning the video. Use ELOCALIB under DOS or the Touchscreen Control Panel with all versions of MonitorMouse. Improper video alignment may be indicated when the cursor does not move at the same pace as a sliding finger, or when it moves in the opposite direction. The cursor should always move in the same axis as your finger.
If the constant touch data continues, the problem is controller related. If the touch data stops and then reappears when the touchscreen is reconnected, the problem is bezel contact, or a shorted touchscreen or cable. Inspect the bezel for clearance, and adjust the touchscreen or display mounting if necessary. See “Touchscreen Diagnosis” on page A-65, for analysis of touchscreen problems, and “Touchscreen Cables” on page A-75, for cable pinouts. • No touch data.
If the system responds to the paper clip test, the touchscreen or the cabling between the touchscreen and your test point is at fault. See “Touchscreen Diagnosis” on page A-65, for further troubleshooting. • Linearity. If touch data is being reported, but the system linearity is poor, the problem can be in any touch component. Do not confuse linearity problems with improper video alignment.
Since the gross function of the touchscreen is that of a switch, this characteristic can be observed. Connect an ohmmeter between pin 3 and any of pins 1, 2, 4, or 5 of the touchscreen cable. This should show an open circuit (>1 megohm) when the touchscreen is not being touched, and <1000 ohms when touched in the middle of the touchscreen with firm finger pressure. A resistance of less than 5000 ohms will usually register a touch with a controller.
Touchscreen Simulation The action of the touchscreen can be simulated with a variety of circuits, several of which are described below. A dummy touchscreen can be useful in troubleshooting when many systems are being maintained or when controller linearity is suspected. The simplest dummy touchscreen is the “paper clip test” described on page A-64. Another simple dummy touchscreen is shown in Part I of Figure A.1 on page A-68.
Figure A.
Serial Controller The E271-2210 controller is shipped jumpered for 9600 baud, 8 data bits, 1 stop bit, and no parity. See Appendix B for controller jumper settings. Using the COMDUMP Utility COMDUMP is a DOS utility included with most Elo driver software. It is also available by downloading the file DIAGS.ZIP at www.elotouch.com/Support/ dnld.asp#dos. Use COMDUMP to verify basic controller functionality and to determine whether or not data is reaching the serial port.
E271-2210 Controller Protocol The ten-byte binary data format displayed in hex by COMDUMP for correct operation with Elo driver software is as follows: Byte Description 1 2 3 4 5 6 7 8 9 10 ASCII 'U' (55h) ASCII 'T' (54h) Status Byte XLow XHigh YLow YHigh ZLow ZHigh (defaults to 0) Checksum E281A-4002 Controller Protocol If the controller is jumpered for E281A-4002 emulation mode, the output will be the six-byte binary format as follows: Byte MSB 1 2 3 4 5 6 1 1 0 0 0 0 LSB 1 0 1 0 0 0 X11 X5 Y11 Y
Using the TOUCHES Utility TOUCHES is a DOS utility included on the TouchTools CD. It is also included in the DOS and Windows 3.X driver available at www.elotouch.com/Support/ dnld.asp#doswindows. TOUCHES works through the ELODEV driver making it useful for further diagnosis of hardware or calibration problems under DOS. Run TOUCHES by typing "TOUCHES". Detailed instructions for using this utility can be found in the TOUCHES section of the DOS and Windows Driver Guide available at www.elotouch.
9 7 5 3 1 10 8 6 4 2 P2 Pins DB25 DB9 Host Signal Source 1 2 3 4 5 6 7 8 9 10 8 6 3 4 2 5 20 22 7 1 6 2 7 3 8 4 9 5 DCD DSR RXD RTS TXD CTS DTR RI GND Controller Controller Controller Host Host Controller Host N/C Common Key At minimum, a 2-wire connection is required—the controller's serial output (P2 pin 3) and Signal Ground(P2 pin 9). For two-way communications, the controller's serial input (P2 pin 5) should also be connected to the host's Transmit Data pin.
Some serial ports require jumpers for the handshaking lines on the cable connector at the computer end. The jumper combinations that may be required to make an RS-232 port work are beyond the scope of this manual. Consult your computer manual for more information. If a breakout box is not available, you can measure the DC voltage at the data output of the controller (RXD on the host).
Bus Controller The 2201 controller is shipped jumpered for a Base I/O Port address of 280 (hex) and Polled Mode. An interrupt (IRQ) is normally selected by software if you are using Elo device drivers. No jumper changes are required, with the possible exception of an E271-2201 controller reconfigured for E271-141 emulation. See Appendix B for jumper settings. If the system does not boot properly after you install the E271-2201 controller, try removing the IRQ jumper if one was installed.
Look at the coordinates output by BUSSTAT. The coordinates should range from about 400-3800 for X and from 600-3500 for Y. When the touchscreen is mounted in its normal orientation, (cable exiting left-center), the origin will be in the lower-left corner. If the touchscreen is installed with the cable exiting right-center, the origin will be in the upper-right corner. Both X and Y should increase steadily as you slide your finger from the origin to the diagonally opposite corner.
Transient Protection Components The transient suppression diodes behave like ordinary diodes when checked with most ohmmeters. These components normally fail by shorting. See the following figure for a circuit diagram: Figure A.3 Transient Protection Circuit Diagnostic LEDs Depending on where the controller is installed, the LEDs may or may not be visible. 2210 Serial Controller The E271-2210 serial controller has one yellow diagnostic LED. Following power on, the controller performs its self-test.
3000U USB Controller The 3000U controller has two LED status indicators.
Diagnostic Codes AccuTouch controller power-on diagnostic codes are typically displayed when an Elo driver is loaded, or through the Touchscreen Control Panel. The codes will be a pair of bytes displayed in hex. Only the first byte is significant with AccuTouch controllers. The following table lists the bit positions defined for the byte. A 1 bit indicates a failure. Diagnostic codes are computed by summing the value for each bit position using hexadecimal arithmetic.
DB9 and DB25 Connector Pin Positions The following figure is useful when locating pin positions on DB9 and DB25 connectors. Figure A.
A-80 IntelliTouch/SecureTouch Guide
A P P E N D I X CONTROLLER CONFIGURATION CHAPTER4 General Information AccuTouch controllers are shipped pre configured for use with Elo driver software. For most users, no changes are necessary. Specific jumper settings and options available for your controller are listed in the Elo software manuals and in this appendix. The following sections are for quick reference only. See the SmartSet Touchscreen Controller Family Technical Reference Manual available at www.elotouch.com/support/dwnldmnls.
Jumper Settings The following applies to 2210 and 2201 controllers only. Jumper blocks may have a horizontal or vertical orientation, as shown in Figure B.1 on page B-82. The figure shows jumpers installed normally for J3 and J7. Because some jumpers work in tandem with others, a cross-connection may also be significant. A valid cross-connection is shown between J0 and J1. Jumpers with an invalid cross-connection, as with J4 and J5, have no effect and are available as extra jumpers.
2210 Serial Controller Figure B.
Jumper Settings Baud Rate (From Left) 9600 J0 - N* J1 - N* J0 - Y J1 - N J0 - N J1 - Y J0 - Y J1 - Y Cross-connect (connect jumper horizontally so the top pins of J0 and J1 are jumpered) 2400 1200 300 19200 Output Format Binary ASCII J2 - N* J2 - Y Hardware Handshaking Enabled Disabled J3 - N* J3 - Y (may be needed in emulation mode) Mode Stream Single-Point Reserved Reserved J4 - N* J4 - Y J5 - N* J6 - N* Power-On Settings Jumpers NVRAM J7 - Y* J7 - N Reserved Reserved J8 - N* J9 - N* Emula
2210 Emulation Modes If you are using driver software that does not support the E271-2210 protocol, the controller can be set up through jumpers J10 and J11 for hardware compatibility with the IntelliTouch® E281A-4002, the AccuTouch E271-140, or the DuraTouch® E261-280 controller. 3000U USB Controller The 3000U controller comes preconfigured for use with Elo drivers and does not require changes to any jumpers. For detailed information on the 3000U controller go to www.elotouch.com/products/accutec/c3000u.
Jumper Settings (From Top) Default from jumpers Reserved J7 - Y* J6 - N* Touchscreen Type AccuTouch (3 or 5 wire) DuraTouch J5 - Y* J5 - N Mode Stream Point J4 - N* J4 - Y Interrupt None (Polled) IRQ2 IRQ3 IRQ5 IRQ7 J3 - N* J2 - N* J3 - Y J2 - Y J3 - Y J2 - N J3 - N J2 - Y Cross-connect (connect jumper vertically so the left pins of J2 and J3 are jumpered.
(From Top) Emulation Mode None E271-141 Resolution 8-Bit 12-Bit J10 - N* J11 - N* J10 - Y J11 - Y J11 - N * indicates factory default settings, compatible with Elo driver software 2201Emulation Modes If you are using driver software that does not support the E271-2201 protocol, the controller can be set up through jumpers J10 and J11 for hardware compatibility with the AccuTouch E271-141 controller (or the DuraTouch E271-142 controller).
B-88 IntelliTouch/SecureTouch Guide
A P P E N D I X SPECIFICATIONS CHAPTER4 The following specifications were correct at press time, but are subject to change without notice. Many of the AccuTouch specifications are controller-dependent. Refer to the AccuTouch Touchscreen Products brochure or the SmartSet Touchscreen Controller Family Technical Reference Manual for these additional specifications.
Positional Accuracy For all flat screens up to 18 inches in diagonal, standard deviation of error is less than 0.080 inches (2.032 mm). The maximum error is 0.180 inches (4.572mm) in either axis. For flat screens larger than 18 inches in diagonal, the maximum error is 1% of the diagonal of the active area. Detected touch coordinates, after being mathematically fitted to actual touch coordinate patterns, shall not have a standard deviation of errors in excess of 0.080 inches in either axis.
1 The typical usage rate for 1 year in hours can be estimated as a median usage of 5420 hrs (t): between a minimum 8 hrs/day, 5 days/wk, 52 wks/yr or 2080 hrs and a maximum 24 hrs/day, 365 days/yr or 8760 hrs. 2 Using the basic reliability formula: R = exp -t/MTBF 0.989 = exp (-5420/MTBF) ln (0.989) = 5420/MTBF MTBF = 5420/-0.
To avoid confusion in selecting suitable gasket materials, elastomers that cannot be crosslinked using sulfur are recommended. These elastomers include silicones, polyurethanes and saturated polyolefins, which are crosslinked using high energy irradiation, peroxide or other chemical crosslinking reactions. Some examples of vendors of these materials include Rogers Corporation (www.rogers-corp.com) for silicone gasket materials (BISCO Cellular Silicones) and polyurethane gaskets (PORON).
Environmental Temperature/Humidity Temperature Operating -10°C to 50°CNote: Functionality is not adversely affected within Storage 40°C to 71°C these operating guidelines.
Chemical Resistance The active area of the touchscreen is resistant to the following chemicals when exposed for a period of one hour at a temperature of 70°F (21°C): Industrial Chemicals: Acetone, Methylene chloride, Methyl ethyl ketone, Isopropyl alcohol, Hexane, Turpentine, Mineral spirits, Unleaded Gasoline, Diesel Fuel, Motor Oil, Transmission Fluid, Antifreeze. Food Service Chemicals Ammonia based glass cleaner, Laundry Detergents, Cleaners (Fantastic, Formula 401, Joy, etc.
Contact Bounce Measured from the beginning of the touch pulse shall not exceed 15 milliseconds. Open Circuit Resistance Greater than 20K ohms, when measured from the signal contact (pin 3) to any drive contact (pins 1, 2, 4, or 5) on the connector, with no force applied to the active surface. Although typical open circuit resistance measurements are in the millions of ohm range, Elo controllers are designed to distinguish resistance values less than 10K ohms to filter false or near touches.
CE Compliance Systems incorporating Elo Touchscreens, controllers, and cables can be approved for CE marking. FCC The touchscreen, when operated with an Elo TouchSystems supplied controller shall comply with FCC Class A certification.
C-97
C-98 IntelliTouch/SecureTouch Guide
C H A P T E R ABOUT ACCUTOUCH TOUCHSCREENS CHAPTER2 Introduction The Elo AccuTouch touchscreen system consists of a touchscreen and an electronic touchscreen controller. The AccuTouch touchscreen is based on patented resistive technology. The touchscreen may be a flat, spherical, or cylindrical and is installed over the face of the display. Since its shape matches that of the display face, an AccuTouch touchscreen has excellent clarity and minimal parallax.
The AccuTouch Touchscreen The AccuTouch resistive touchscreen consists of a glass panel molded to the precise shape of a display's face. A scratch-resistant, hard-coated plastic cover sheet is suspended over the surface of the glass by less than one-thousandth of an inch with tiny separator dots. The cover sheet may be clear for best image clarity or have an antiglare finish. For optimum optical performance, the touchscreen may be optically bonded to the cathode ray tube (CRT) face.
The logical sequence of operation of an AccuTouch controller, used in combination with the AccuTouch touchscreen, is as follows: 1 When the controller is waiting for a touch, the resistive layer of the touchscreen (the coating on the glass) is biased at +5 Vdc through all four drive lines, and the cover sheet is grounded through high resistance. When the touchscreen is not being touched, the voltage on the cover sheet remains at zero.
The AccuTouch Controllers The AccuTouch controllers provide the drive signals for the touchscreen, convert the received analog signals into digital touch coordinates, and send these coordinates to the computer. Controllers are available for the AccuTouch touchscreen with serial RS-232 or PC-Bus (ISA or EISA compatible). Controller options are detailed in Chapter 3.
GLOSSARY CHAPTER4 A Autosizing-True autosizing occurs when a monitor can maintain a constant image size across different video modes. Two common ways of achieving autosizing are mode sensing, pre-programmed factory settings and user defined modes. B Bandwidth-The range of frequencies over which the video display’s electronics can respond. This is directly related to the speed at which the monitor can accept pixel information and to the maximum resolution the monitor can display.
DPMS™-Display Power Management Signaling standard. VESA® standard which ensures that monitor and video manufacturers produce power saving products that work together. DQ-DAF-Double-Quadruple Dynamic Astigmatism and Focus. The basic technology of the DQ-DAF is the same as the DAF. The DQ-DAF has two sets of quadruple lenses in addition to the main focus lens. This provides separate horizontal and vertical focusing, and thus greater focal compensation than the standard DAF.
Invar-Shadow Mask-A special type of shadow mask that is made out of Invar, an alloy that is able to withstand high temperature generated by the electron beam. The Invar shadow mask allows the CRT to generate a brighter image than the conventional shadow mask. (See Shadow Mask). An Advanced Invader Shadow Mask improves brightness by 40% over the standard. J Jitter-See Swim. K k-Small letter k stands for Kilo, Greek for 1,000, e.g. kg, kHz.
MPR-II-The radiation emission standard published by the Swedish National Board for Measurement and testing. Multi-Frequency vs Fixed Frequency-Fixed frequency monitors can only sync on one horizontal scan rate (e.g. 31.5 kHz). Most of this type of monitors are VGA only. There are two basic types of multi-frequency monitors: the tri or quad sync multi-frequency monitor, and the variable multi-frequency monitor. Tri/quad sync monitors will sync on 3 to 4 different horizontal scan rates (e.g. 31.5 kHz, 35.
Primary Colors-In light (and in monitors, which produce light) they are the basic colors-red, green and blue-that can be added together to create any other color. R Raster Area-The area of the CRT which has the ability to display a video image. Refresh-The process in which the monitor repaints an image. Refresh Rate-The rate at which a monitor repaints an image. A refresh rate of 60 Hertz, for example, means the screen is drawn 60 times per second. A low vertical refresh rate produces visible flicker.
Swim-An image should be rock-steady on the monitor screen. Swim, like similar characteristics jitter and drift, is a measure of how much an on-screen image wavers over a given time. T Triad-A triad contains three phosphor filled dots-one red, one green and one blue-arranged in a triangular fashion. Each of the three electron guns are dedicated to one of these colors (for example, the red gun excites only a triad’s red phosphor dot).
Index Numerics 2201 PC-Bus Controller, 77 2201Emulation Modes, 87 2201PC-Bus Controller, 85 2210 Emulation Modes, 85 2210 Serial Controller, 76, 83 2210 Serial Controller and 3000U USB Controller, 48 3000U USB Controller, 85 A About AccuTouch Touchscreens, 17 absolute coordinates, 19 address, Base I/O Port, 27, 74 adhesive tape, 42, 44 agency approvals, 52 analog to digital converter (ADC), 19 anode button, 37, 39, 57 anode lead, 37, 57 ASCII terminal, 69 averaging algorithm, 19 B Base I/O Port address, 2
F Diagnostic LED's, 76 diagnostic procedures, 65, 67 Dimensions, 90 Disassembling the Display, 36 Discharging the CRT, 37 display bezel, 41 power supply, 49 testing, 34 Display Problems, 62 distance from CRT, 44 DOS troubleshooting, 69 Driver Software, 14, 20 driver software ELODEV, 69, 71 DTE device, data connection, 72 dummy touchscreen, 65, 67 DuraTouch emulation, 87 dust seal, 40, 43, 58 failures, display, 61 FCC Notice, 7 Flat Panel Display Integration, 59 flyback transformer, 37, 56 G General Infor
J Jumper Settings, 82, 84 Jumper Settings, E271-2201 PC-Bus controller, 86 serial controllers, 69, 71 Protective Clothing, 32 R K kits Internal Touchscreen Controller Mounting, 49, 51 Touchscreen Installation, 48 L lead, anode, 37, 56, 57 LED's, 76 Light Transmission, 91 Limited Warranty, 5 Linearity, 65 liquid crystal displays (LCD’s), 59 M materials for mounting touchscreen, 41 Mechanical, 90 mounting a touchscreen, 41 mounting holes, 49 N neck, CRT, 36, 39, 57 NEMA sealing, 58, 90 No touch data, 64
Touchmonitor Configurations, 22 Touchmonitor Connections, 22 Touchmonitor Installation, 21 Touchmonitor with Internal Serial Controller, 23 Touchmonitor with internal USB controller, 24 touchscreen, 19 aligning on CRT, 40, 41 CRT, attaching to, 41 dust seal, 40 grounding, 19, 49, 51, 54, 55 Installation Kit, 51, 52, 55 mounting, 41 transient protection, 49 voltage level, 19 Touchscreen Application Tips, 28 Touchscreen Cables, 75 Touchscreen Diagnosis, 65 Touchscreen Simulation, 67 Transient Protection, 46 t
