3M Touch Screen Controller RX151 Reference Manual Download

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3M Touch Systems, Inc. Proprietary Information

™

MicroTouch

™

Controller RX151

Reference Guide

Formerly

SC500 USB Resistive

Read and understand all safety information

contained in this document before using this product.

Summary of Contents for Touch Screen Controller RX151

Page 1: ... Systems Inc Proprietary Information 3M MicroTouch Controller RX151 Reference Guide Formerly SC500 USB Resistive Read and understand all safety information contained in this document before using this product 3 ...

Page 2: ...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 IMPOR...

Page 3: ... Power to the Controller 11 Sensor Cable Connector 11 Turning On Your System 12 Status Light LED Diagnostics 12 What s Next 13 Chapter 2 RX151 Controller Communications Overview of USB Firmware Communications 15 Communication Basics 16 Receiving Reports from the Controller 16 HID and Packed Touch Reports 16 USB Command Set 18 Set Feature Set Asynchronous Report 19 Set Feature Calibration 20 Get Fe...

Page 4: ...4 3M MicroTouch Controller RX151 Reference Guide 3M Touch Systems Inc Proprietary Information ...

Page 5: ...tted 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 ...

Page 6: ...jury 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 wh...

Page 7: ... 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 U...

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Page 9: ...interface To integrate and test the RX151 controller you need the following items A 5 wire resistive sensor A method of establishing the USB communication between the controller and your system The standard 3M MicroTouch USB communications cable P N7319420 is recommended A software utility or driver with a calibration routine Note You can use MicroTouch Software which includes the touch driver and...

Page 10: ...uch USB communication cable P N 7319420 PC 99 compatible or an equivalent interconnect One end of this cable plugs into the USB connector JP7 on the RX151 controller The other end which has a Type A connector plugs into a USB port on your PC When creating a custom cable use the Molex 51004 0500 mating connector Table 1 describes the interconnections of the 3M MicroTouch USB cable Table 1 USB Cable...

Page 11: ...ering design avoids awkward electrical connections Supplying Power to the Controller The RX151 controller is powered by the USB 5 volt bus power The typical current is 15 mA typical 28 mA touching 5 regulation 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 ...

Page 12: ...troller provides diagnostic feedback with a light emitting diode LED on the component side of the board that indicates the status of the sensor During normal operation when you touch the sensor the LED becomes bright as long as the controller detects a touch A flashing or blinking LED during power up indicates the controller s power on self test failed Refer to Table 2 for a description of each er...

Page 13: ... Since this is a HID human interface device compatible controller the controller will operate independent of a 3M MicroTouch driver You must obtain a HID calibration utility from the 3M Touch Systems website Additional 3M Touch Systems documentation is available from the corporate website at www 3Mtouch com ...

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Page 15: ...can issue commands to initialize the controller select operating modes and execute diagnostic functions Most touch systems users do not have to use firmware commands to use their touch systems For example users can use 3M MicroTouch software or equivalent software to calibrate the sensor or to determine the controller type and firmware version Note This document assumes you are familiar with USB s...

Page 16: ...rom 3M Touch Systems Receiving Reports from the Controller The controller sends a variety of reports to the computer The first byte of each report is the Report ID that defines the structure and content of the report The controller sends some reports as a direct response to a computer request synchronous The controller will also send some reports as the result of an external event such as a touch ...

Page 17: ...used Packed Coordinate Data Report 2 and Report 7 These are used to transfer the packed coordinate data to a custom driver or utility These reports when activated are sent to the host whenever new data is available for transmission The packed format contains two coordinate reports each with its own status and Y and Y coordinate data Because it is packed the software must rearrange bits to obtain t...

Page 18: ...SB packet for sending to the controller The general packet format is described in Table 7 Any data appended immediately after this data is referred to as the data stage of request If using Windows you may want to use the Set and Get Feature functions The buffers are the same except the first two fields The bmRequest Type and bRequest fields are omitted thus making wValue the first field For your c...

Page 19: ...r 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 Set Feature Set Asynchronous Report This starts or stops the sending of various asynchronous reports via the interrupt pipe Once a report is turned on that report is sent whenever data is available The firmware defaults to ...

Page 20: ...10 Data Stage Offset Field Size Value Description 0 bReport ID 1 0x03 Feature Report ID 1 bmReport Subtype 1 0x05 Indicates a SetAsynchReport 2 Not used 2 0 Not used 4 bReport 0x00 0 Touch_Reports_Off 1 Touch_Reports_On 2 Touch_Reports_HID 3 Touch Reports_Packed 6 Touch_Reports_Utility 7 Touch_Reports_Restore 5 Not used 3 Not used Response The device stalls endpoint 0 if it cannot process this req...

Page 21: ... the calibration software polls the Get Status command to monitor the progress of the calibration The calibration will fail if the two calibration points do not fall within certain bounds established by the firmware These bounds require that the two calibration points be in correct quadrants of the sensor Calibration software can abort the calibration process with a Reset Request During the calibr...

Page 22: ... the X direction 1024 x 1 8 128 Amount to move inward in the Y direction 768 x 1 8 96 The Calibration command then positions the first calibration target inward from the lower left corner 0 767 and the second calibration target inward from the upper right corner 1023 0 The following illustration shows how the calibration targets are calculated for a Windows based system Your operating system may b...

Page 23: ...5 Not used 3 0 Not used POC Status The status of the Power on Checks Various controller systems are checked at power up If any failures in these systems are detected a POC flag is set The POC status field reports the state of these flags The POC status information is also flashed on the controller s LED Table 16 Power On Status Bit Number LED Flashes Description 0 1 Not used 1 2 Program code check...

Page 24: ...Bit Fields Bit Number Description 0 1 if the sensor is being touched 1 Always 0 Set Feature Reset This is a request to perform a controller reset Table 19 Reset Request Offset Field Size Value Description 0 bmRequestType 1 0x21 Host to device 1 bRequest 1 0x09 Set Report 2 wValue 2 0x0303 03 Feature 03 Feature Report ID 4 wIndex 2 0 Always 0 6 wLength 2 8 Always 8 Table 20 Data Stage Offset Field ...

Page 25: ...D 1 bmReportSubtype 1 0x08 Indicates a restore defaults request 2 Not used 6 0 Not used Response The device stalls endpoint 0 if it cannot process this request Set Feature Set Controller Number This command is used to get a controller number for application use The controller does not use this value This process is useful for identifying individual controllers in a multiple controller system Table...

Page 26: ...if the request is attempting to access data that is outside the specified memory area This may happen if the index is too large or too much data has been requested The host can send a status request as long as the endpoint is not stalled to determine if this request was executed properly Get Feature Get Controller Number This command is used to get a controller number for application use The contr...

Page 27: ...e 28 Get Controller Number Report Offset Field Size Value Description 0 bmRequestType 1 0xA1 Device to host 1 bRequest 1 0x01 Get Report 2 wValue 2 0x0305 03 Feature 05 Feature Report ID 4 wIndex 2 0 Always 0 6 wLength 2 0x48 Always 72 allows for 64 data bytes 8 byte header Table 29 Data Stage 1 controller response header Offset Field Size Value Description 0 Report ID 1 0x05 Feature Report ID 1 N...

Page 28: ...first 4 bytes of data stage the remaining bytes are padding Response If the command cannot be processed the device stalls endpoint 0 The command cannot be processed if the memory area is not valid It cannot be processed if the request is attempting to access data that is outside the specified memory area This may happen if the index is too large or too much data has been requested The host can sen...

Page 29: ... controller specifications such as power and environmental requirements The RX151 controller is a compact small outline USB controller This controller should be internally mounted in your monitor The following figure shows the overall dimensions of the RX151 controller and the locations of the mounting holes and connectors Figure 3 RX151 Controller Dimensions ...

Page 30: ... Class B Compliant VCCI Class B ITE Emissions Japan Compliant AS NZS 3548 1995 CISPR 22 Class B ITE Emissions Aus Compliant UL cUL Compliant Ambient Operating and Storage Environmental Conditions Note All humidity is non condensing Operating Temperature Range 0 C to 65 C Operating Humidity Range 0 to 95 RH up to 36 C above 36 C refer to Figure 4 below Storage Temperature Range 20 C to 75 C Storage...

Page 31: ... of IEC 61000 4 2 Compliant Normal Operation No false touches MTBF by MIL Std 217F Calculation 400 000 Hours 3M Touch Systems Parameters Accuracy vs Dynamic Temperature Change Maintains 1 Accuracy tested at 0 C to 65 C with a 0 5 C minute temperature ramp Communications Protocol USB Rev 1 1 Figure 4 Storage and Operating Temperature and Humidity Conditions ...

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