EXII-7720SC 3M TOUCH SYSTEMS, EXII-7720SC Datasheet

EXII-7720SC

Manufacturer Part Number
EXII-7720SC
Description
Manufacturer
3M TOUCH SYSTEMS
Datasheet

Specifications of EXII-7720SC

Operating Temperature (min)
-40C
Operating Temperature Classification
Commercial
Operating Temperature (max)
70C
Rad Hardened
No
Lead Free Status / Rohs Status
Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
EXII-7720SC
Manufacturer:
3M Touch Systems
Quantity:
135
EX II Serial Controllers
Reference Guide
EX II 1710SC
EX II 1720SC
EX II 1750SC
EX II 7720SC
3M Touch Systems
Read and understand all safety information
contained in this document before using this product.
3M Touch Systems Proprietary Information

Related parts for EXII-7720SC

EXII-7720SC Summary of contents

Page 1

... EX II Serial Controllers Reference Guide EX II 1710SC EX II 1720SC EX II 1750SC EX II 7720SC 3M Touch Systems Read and understand all safety information contained in this document before using this product. 3M Touch Systems Proprietary Information ...

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... Touch Systems, Inc. warranty, then 3M Touch Systems, Inc. sole obligation and User’s and Purchaser’s exclusive remedy, will be 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 operations or assemblies by anyone other than 3M Touch Systems, Inc ...

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... Chapter 1 Introduction What You Need to Know ...........................................................................................5 Important Safety Information .....................................................................................5 Touch Screen Care and Cleaning ...............................................................................6 Contacting Technical Support ....................................................................................7 3M Touch Systems, Inc. Worldwide Offices .............................................................7 Chapter 2 Integrating the EX II Controllers Overview of the EX II Touch Screen Controllers ...................................................... 17xxSC Dimensions ....................................................................................... 7720SC Dimensions .......................................................................................10 Handling and ESD Protection ..................................................................................11 Establishing the Data Connection ...

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... Unit Type Verify ......................................................................................................30 Appendix 17xxSC Controller Specifications Technical Specifications...........................................................................................34 Physical Dimensions ................................................................................................34 Female Connector on the Touch Screen Cable ........................................................36 Communication Connector.......................................................................................36 Appendix 7720SC Controller Specifications Touch Screen Cable Connections.............................................................................38 Communication Connector.......................................................................................38 Technical Specifications...........................................................................................39 Physical Dimensions ................................................................................................ Serial Controllers Reference Guide 3M Touch Systems Proprietary Information ...

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... LED conditions, and controller specifications. 3M Touch Systems is committed to being a premier supplier in touch systems throughout the world 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. ...

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... Explanation of Symbols Attention: Read accompanying documentation Touch Screen Care and Cleaning The touch screen requires very little maintenance. 3M Touch Systems, Inc. recommends that you periodically clean the glass touch screen surface. Typically, an isopropyl alcohol and water solution ratio of 50:50 is the best cleaning agent for your touch screen ...

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... Always handle the touch screen with care. Do not pull or stress cables. Contacting Technical Support 3M Touch Systems, Inc. is committed to helping you get the most out of your touch screen by providing extensive Technical Support. Visit the 3M Touch Systems, Inc. website at http://www.3Mtouch.com/, where you can download touch screen software and drivers, obtain regularly updated technical documentation on 3M Touch Systems, Inc ...

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... CHAPTER 2 Integrating the EX II Controllers The 3M Touch Systems EX II 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 EX II 1700SC and 7720SC series capacitive controller firmware is optimized for Cleartek II touch screens integrated in the latest flat panel displays ...

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... A method of establishing the serial data communication between the controller and your system. The standard 3M Touch Systems RS-232 serial cable (P/N 7310101) is recommended. • A method of supplying power to the controller -- either internal or external. • A touch screen driver with a calibration routine. Note: You can use either TouchWare software, which include the touch screen device driver and utilities software as the software interface ...

Page 11

... The EX II controllers require that an RS-232 serial communication cable be attached to connector JP1. You can use a standard 3M Touch Systems RS-232 cable (P/N 7310101 equivalent interconnect. One end of this cable plugs into the RS-232 connector (JP1) on the controller. The other end, which has a 9-pin D connector, plugs directly into a serial COM port on your PC ...

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... DTR and DSR Brown Red ⎯ 1 and 6 DCD and DSR Blue 1 and 4 DCD and DTR ⎯ Black Green White ⎯ ⎯ 3M Touch Systems Proprietary Information Controller Side (7-Pin Molex) Pin Description None 2 Transmit Data (TXD) 3 Receive Data (RXD) None 5 Power supply ground ...

Page 13

... 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 Touch Systems RS-232 serial cable (P/N 7310101), consult your applications engineer for power supply specifications. Mounting the Touch Screen There are several methods for mounting the touch screen depending on your application (CRT displays or flat panel displays, each in a variety of sizes) ...

Page 14

... Adjust the horizontal and vertical position controls on the monitor to center the image on the screen. Status Light (LED) Diagnostics 3M Touch Systems controllers are highly reliable units; however, there may be occasions when the controller does not perform exactly as you expected. The EX II controller provides diagnostic feedback with a light emitting diode (LED) on the component side of the board that indicates the status of the touch screen unit ...

Page 15

... Installing Software Both TouchWare and MT 7 software include the software driver that enables your touch screen to work with your computer. 3M Touch Systems has touch screen drivers for many operating systems, including Windows XP, XP embedded, 2000, 9X, Windows Me, Windows CE, and Windows NT 4.0 (refer to the website for a complete listing). You must be sure to install the touch screen software for your operating system ...

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Page 17

... Format Tablet is supported by all current 3M Touch Systems touch screen controllers. • the standard for current 3M Touch Systems product development and is the format used by all touch screen drivers written by 3M Touch Systems. Refer to the Format Tablet command in the firmware reference section. Note that both TouchWare and MT 7 software automatically set communications parameters to N81 ...

Page 18

... Because Mode Stream sends touch data continually the most versatile mode, and it provides the best response time and overall feel. 3M Touch Systems recommends that the touch screen driver generate an interrupt as each packet in the data stream arrives. Because touchdown and liftoff events are specially coded, your software always knows exactly what the user is doing, if the interrupts are sent as recommended ...

Page 19

... The terminator is the last character of each response string and is an ASCII carriage return CR. The hexadecimal code for the ASCII CR control character is 0D hexadecimal. The value returned in the response will be the ASCII control character for a carriage return, displayed on the screen as the cursor moving to the next line. 3M Touch Systems Proprietary Information 19 ...

Page 20

... In this chapter, responses are shown as a string of ASCII characters consisting of a header, the response, and a terminator as follows: <SOH>Response<CR> Controller Initialization To initialize the EX II 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. Firmware Commands Developers may use this information when writing touch applications, developing custom drivers or touch configurations, or testing their touch systems ...

Page 21

... The controller uses the data immediately before liftoff to register a calibration touch. Therefore, you can touch the screen, move your finger to the target, hold for a few seconds, and then lift off. Instructing users to touch this way results in a more accurate calibration. 3M Touch Systems Proprietary Information 21 ...

Page 22

... Lower Left Calibration Target (1024 x 1/ 128 = 128 Y = 767 - (768 x 1/8) = 767 - 96 = 671 3M Touch Systems Proprietary Information EX II Serial Controllers Reference Guide Upper Right Calibration Target X = 1023 – (1024 x 1/8) = 1023 – 128 = 895 (768 x 1/ 1024, 0]* ...

Page 23

... The Calibrate Raw command returns a negative response if the controller is not using an 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. Response: < ...

Page 24

... When the proximity bit changes from (touch liftoff), the controller outputs one final set of X/Y coordinate data with the bit equal to 0 and the X/Y coordinate data equal to the last touch point. Positive response. Command not supported. Failure detected. 3M Touch Systems Proprietary Information EX II Serial Controllers Reference Guide LSB ...

Page 25

... Q component of upper left (UL) corner 12-16 I component of upper right (UR) corner 17-21 Q component of upper right (UR) corner 22-26 I component of lower left (LL) corner 27-31 Q component of lower left (LL) corner 32-36 I component of lower right (LR) corner 37-41 Q component of lower right (LR) corner Positive response. 3M Touch Systems Proprietary Information 25 ...

Page 26

... With the controller in Format Tablet mode, touching the screen causes the controller to return a response in the following format: SXxYy = Status byte, first byte of data. Refer to Table (horizontal) coordinate data; second and third bytes of data (vertical) coordinate data; fourth and fifth bytes of data Serial Controllers Reference Guide Positive response. 3M Touch Systems Proprietary Information ...

Page 27

... The This string contains the controller model number and current firmware revision number (e.g., EXII-7720 Rev. 3.0) The content and format of this command can change and therefore is not intended for normal customer use. MSB* ...

Page 28

... 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 Touch Systems controller. Cc Xxxx = Four ASCII characters that indicate a build identifier. Parameter Set Syntax: <SOH>Ppds[b]<CR> ...

Page 29

... 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 30

... Description: Returns to the factory default operating parameters. The Restore Defaults command copies the 3M Touch Systems factory default parameters from ROM to the non-volatile memory (NOVRAM) and then executes a Reset command. Table 10 lists the factory defaults for the EX II controller. The Restore Defaults command is useful in situations where inadvertent commands to the controller have rendered the touch screen inoperative ...

Page 31

... Two ASCII characters that provide status information about the controller Ss hardware. The two characters represent one byte. Each character is in the range and Table 2 defines the meaning of each bit (LED minus 1) in the status byte. Each bit can be set where Error error diagnostic errors (normal response) 3M Touch Systems Proprietary Information 31 ...

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...

Page 33

... The following figures show the overall dimensions of the EX II 17xxSC controller and the locations of the mounting holes and connectors. Figure 3 Uncased EX II 17xxSC Touch Screen Controller 3M Touch Systems Proprietary Information ...

Page 34

... Technical Specifications The controller specifications listed below were validated in test systems containing 3M Touch Systems components. These specifications may not be valid if configured with components from suppliers other than 3M Touch Systems. All components in the manufacture of electronic controllers are RoHS Directive compliant (2002/95/EC). Physical Dimensions ...

Page 35

... Contact Discharge 1 false touch allowed ±27 kV Air Discharge Normal Operation – No false touches * ESD discharges Touch Systems touch screen connected to the controller MTBF (by MIL Std. 217F Calculation)> 740,000 Hours Touch System Parameters Accuracy vs. Dynamic Temperature Change (tested at 0 deg deg. C with a 0.5 deg. C/minute temperature ramp) ...

Page 36

... Data Set Ready (DSR). Connected to DTR and DCD. Black Request To Send (RTS). Connected to CTS. Green Clear To Send (CTS). Connected to RTS. White DC power jack (+5 VDC). ——— Cable shield connected to ground. DC power jack (ground). ——— Chassis (earth) ground. 3M Touch Systems Proprietary Information ...

Page 37

... The EX II 7720SC controller is a compact RS-232 serial controller. This controller can be internally mounted in your monitor. The following figures show the overall dimensions of the EX II 7720SC controller and the locations of the mounting holes and connectors. Figure 7720SC Touch Screen Controller 3M Touch Systems Proprietary Information ...

Page 38

... Connected to DSR and DCD. Power supply ground. Data Set Ready (DSR). Connected to DTR and DCD. Request To Send (RTS). Connected to CTS. Clear To Send (CTS). Connected to RTS. DC power jack (+5 VDC). Cable shield connected to ground. DC power jack (ground). Chassis (earth) ground. 3M Touch Systems Proprietary Information ...

Page 39

... Technical Specifications The controller specifications listed below were validated in test systems containing 3M Touch Systems components. These specifications may not be valid if configured with components from suppliers other than 3M Touch Systems. All components in the manufacture of electronic controllers are RoHS Directive compliant (2002/95/EC). Physical Dimensions ...

Page 40

... Contact Discharge 1 false touch allowed ±27 kV Air Discharge Normal Operation – No false touches * ESD discharges Touch Systems touch screen connected to the controller MTBF (by MIL Std. 217F Calculation)> 700,000 Hours Touch System Parameters Accuracy vs. Dynamic Temperature Change (tested at 0 deg deg. C with a 0.5 deg. C/minute temperature ramp) ...

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