3M Touch Screen Controller SX112 Reference Manual
3M Touch Screen Controller SX112 Reference Manual

3M Touch Screen Controller SX112 Reference Manual

Formerly ex ii 3700sp

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3M
MicroTouch
Controller SX112
Reference Guide
(formerly EX II 3700SP)
Read and understand all safety information
contained in this document before using this product.
3
3M Touch Systems, Inc. Proprietary Information

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Summary of Contents for 3M Touch Screen Controller SX112

  • Page 1 MicroTouch ™ ™ Controller SX112 Reference Guide (formerly EX II 3700SP) Read and understand all safety information contained in this document before using this product. 3M Touch Systems, Inc. Proprietary Information...
  • Page 2 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.
  • Page 3: Table Of Contents

    3M™ MicroTouch™ Controller SX112 Reference Guide Contents About This Manual 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 1 Integrating the SX112 Controller Overview of the SX112 Touch Controller ..............9...
  • Page 4 3M™ MicroTouch™ Controller SX112 Reference Guide Name Command.......................24 Null Command ......................24 Output Identity ......................24 Parameter Set......................25 Pen/Finger ........................26 Pen Only........................26 Reset .........................26 Restore Defaults .......................26 Unit Type........................27 Appendix A SX112 Controller Specifications Controller Technical Specifications .................30 Pen Technical Specifications..................31 3M Touch Systems, Inc. Proprietary Information...
  • Page 5: About This Manual

    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.
  • Page 6: Sensor Care And Cleaning

    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...
  • Page 7: 3M Touch Systems Support Services

    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.
  • Page 9: Chapter 1 Integrating The Sx112 Controller

    A method of supplying +12VDC power to the controller. • A touch driver with a calibration routine. You can use 3M™ MicroTouch™ MT 7 software which includes the necessary touch driver and utilities software. 3M Touch Systems, Inc. Proprietary Information...
  • Page 10: Handling And Esd Protection

    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.
  • Page 11: Mounting The Sensor

    Mounting the Sensor There are several methods for mounting the sensor depending on your application. If you need instructions or recommendations from 3M Touch Systems on how to incorporate a sensor into your design, refer to the 3M™ MicroTouch™ System 3250EX Integration Guide (P/N 19-278).
  • Page 12: Installing 3M™ Microtouch™ Software

    Replace controller. Installing 3M™ MicroTouch™ Software 3M™ MicroTouch™ Software includes the driver that enables your sensor to work with your computer. 3M Touch Systems has touch drivers for many operating systems, including Windows Vista, XP, XP embedded, 2000, 9X, Windows Me, Windows CE, and Windows NT 4.0 (refer to the website for a complete listing).
  • Page 13: Chapter 2 Sx112 Controller Communications

    You should be aware of the results before executing any firmware commands. To optimize the performance of the 3M™ MicroTouch™ SX touch controller and simplify the development of custom drivers, 3M Touch Systems recommends you use the commands listed in this chapter for current development. Using these commands ensures compatibility with all 3M™...
  • Page 14: Controller Default Settings

    Data format refers to the type of packet the controller uses to send the X/Y touch coordinates to the host system. Format Tablet is the default format for the 3M™ MicroTouch™ SX112 controller. In Format Tablet, the controller sends 5 bytes per point and provides the most rapid response time to a touch.
  • Page 15: Sending Commands To The Controller

    The general format of a command is as follows: <Header>Command<Terminator> Note: The following descriptions of header, command, and terminator, use 3M Touch Systems terminal emulator key sequences. You may need to enter the sequence in a different format, depending on your emulator.
  • Page 16: Firmware Commands

    <SOH>Response<CR> Controller Initialization To initialize the SX serial controller for new development, 3M Touch Systems recommends that the host system issue a Reset command whenever the host system is powered on and is attempting to establish communication with the controller.
  • Page 17 3M™ MicroTouch™ Controller SX112 Reference Guide To optimize the performance of the touch controller and simplify the development of custom drivers, 3M Touch Systems recommends you use the commands listed in Table 5 for current development. Using these commands ensures compatibility with all 3M™...
  • Page 18: Calibrate Extended

    Calibrate Extended Syntax: <SOH>CX<CR> Note: This command should not be used when 3M™ MicroTouch™ Software is being used. The CX command will interfere with the auto orientation algorithm. To calibrate, use the 2- or 4-point calibration in 3M™ MicroTouch™ Software.
  • Page 19: Calibrate Extended Procedure

    3M™ MicroTouch™ Controller SX112 Reference Guide (0, 0) [0, 0]* 1023, 0) [1024, 0]* Upper Right Calibration Target (895, 96) X = 1023 – (1024 x 1/8) = 1023 – 128 = 895 Y = 0 + (768 x 1/8) = 0 + 96 = 96...
  • Page 20: Calibrate Raw

    8-bit communication mode. To end Calibrate Raw mode, issue a Reset command. 3M Touch Systems uses the Calibrate Raw command during manufacturing and testing, and recommends you only use this command for diagnostics when you want raw data.
  • Page 21: Diagnostic Command

    3M™ MicroTouch™ Controller SX112 Reference Guide Table 7 Calibrate Raw Status Bits Description Values S0 – S5 Reserved — Proximity (touch state) 1 = Sensor is being touched (a touchdown or a continued touch). 0 = Sensor is not being touched (a touch liftoff or inactive).
  • Page 22 3M™ MicroTouch™ Controller SX112 Reference Guide To terminate Format Raw, issue a Reset command. The controller may return several bytes of data between the time you issue a Reset command and the controller receives it. You can either scan the data stream for the Reset acknowledgment, or you can ignore the response to the first Reset command and then issue a second Reset after approximately 10 seconds has passed.
  • Page 23: Format Tablet

    3M™ MicroTouch™ Controller SX112 Reference Guide Format Tablet Syntax: <SOH>FT<CR> Description: Outputs the X/Y touch coordinate data in a 5-byte packet. The packet includes 1 status byte and 4 bytes of binary X/Y coordinate data. The protocol also establishes the X and Y coordinate output as 14 binary bits providing a range of 0 to 16,383.
  • Page 24: Mode Stream

    Returns a 6-character random identifier, which describes the controller type and the firmware version number. Response: <SOH>CcXxxx<CR> where: = Two ASCII characters that describe the type of 3M™ MicroTouch™ controller. Xxxx = Four ASCII characters that indicate a build identifier. 3M Touch Systems, Inc. Proprietary Information...
  • Page 25: Parameter Set

    3M™ MicroTouch™ Controller SX112 Reference Guide Parameter Set Syntax: <SOH>Ppds[b]<CR> where: = Parity type N = No parity O = Odd parity E = Even parity = Number of data bits (7 or 8). = Number of stop bits (1 or 2)
  • Page 26: Pen/Finger

    Reset command also cancels the Format Raw, Calibrate Raw, and Calibrate Extended commands and returns the controller to normal operation. 3M Touch Systems recommends that the host system issue a Reset command whenever the host system is powered on and is attempting to establish communication with the controller.
  • Page 27: Unit Type

    3M™ MicroTouch™ Controller SX112 Reference Guide Table 12 SX112 Serial Controller Factory Default Settings Operating Parameter Default Baud Rate 9600 Serial Communication Settings N, 8, 1 Data Format Format Tablet Operating Mode Mode Stream Return to Factory Calibration The Restore Defaults command requires approximately 1.8 seconds. Therefore, the application program should wait the maximum amount of time and be sure it receives the command response before issuing another command to the controller.
  • Page 29 3M™ MicroTouch™ Controller SX112 Reference Guide APPENDIX A SX112 Controller Specifications This section provides controller specifications such as power requirements, environmental requirements, and cable connectors. The controller measures 1.35 x 4.8 inches with a total height profile of 0.35 inches from the thru hole pins on the trace side of the board to the top of the highest component on the opposite side.
  • Page 30: Controller Technical Specifications

    3M™ MicroTouch™ Controller SX112 Reference Guide Controller Technical Specifications Physical Dimensions 4.80 in. x 1.35 in. x 0.032 in. (121.9 mm x 34.3 mm x 8.2 mm) Board Level Functions Power +12V Input: (100 mA typical, 110 mA maximum), ±5% regulation, 50 mV maximum ripple and noise.
  • Page 31: Pen Technical Specifications

    – Class 1 per section 9 of IEC 61000-4-2 Compliant Normal Operation – No false touches * ESD discharges to a 3M™ MicroTouch™ touch sensor connected to the controller MTBF (by MIL Std. 217F Calculation) > 600,000 Hours Touch System Parameters Accuracy vs.
  • Page 32 Length = 42.0 ± 1 Pen Connector RJ45 8 pin Connector Pen Tip – Conductive Replaceable – 3M Touch Systems P/N 2604634 Pen Cable Mechanical Specifications Pen End – Dynamic Pull Force Minimum 20 lb. pull force J1 Connector End – Dynamic Pull Force Minimum 6 lb. pull force Pen End –...
  • Page 33 3M™ MicroTouch™ Controller SX112 Reference Guide ±8 kV Contact Discharge - 1 “touch” allowed Compliant with Class 2 operation per section 9 of IEC 61000-4-2 ±22 kV Air Discharge – Normal Operation – No false touches Compliant with Class 1 operation per section 9 of IEC 61000-4-2...

This manual is also suitable for:

Ex ii 3700 spMicrotouch sx112

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