TMR900
Contents
1. Two setting From character and Number of characters define which part of ID code will be transmitted to the PC upon successful read From character defines the number of the first character of ID code that will be sent to PC characters count starts from 1 The user can program this setting to any value from 1 to 16 Enter Command Setting gt 6 From character 1 16 lt Enter gt for 1 14 TMR900 Touch Memory Button Reader Pressing lt ENTER gt without entering any number will set the value to 1 which means that no characters will be cut from the left of the ID code Number of characters defines how may characters will be transmitted The user may enter any value from 1 to 16 Enter Command Setting gt 6 Number of characters 1 16 lt Enter gt for 16 Pressing lt ENTER gt will set the value of this setting to 16 which means that maximum possible number of characters will be transmitted Please note that in some cases the actual number of transmitted characters will be less then the one defined in Number of characters setting For example if From character is set to 5 and Number of characters is set to 16 only 12 characters will be transmitted as there is only 12 characters available starting from character 5 and to the end of ID code Setting the From character to 1 and Number of characters to 16 will make the TMR900 transmit the whole ID code To exit the setup type in E Exit The TMR900 will pri2. Button Reader 2 Introduction TMR900 is a device that lets you read the Identification Code sometimes referred to as an ID code or Registration number of Dallas Semiconductor s Touch Memory Buttons The device is extremely simple to use all you need to do is press the Touch Memory Button against the touch probe located on top of the TMR900 s housing ID code will then be read out verified against possible read errors and output into your PC via one of 2 available interfaces eKeyboard Emulation interface This interface is called so because it actually emulates the regular PC keyboard The TMR900 attaches to your computer s keyboard connector while your computer s standard keyboard is plugged into an extra connector provided by the TMR900 Whenever you read out the Touch Button s ID code it will be sent to your PC as a sequence of key codes in exactly the same fashion as when you key in the same code manually Thus the PC will not be able to discriminate between actual manual input and the data sent by TMR900 This kind of interface is very convenient as it lets you use the TMR900 with any software without the need to modify or alter this software in order to accept the data from the TMR900 eRS232 interface With this interface the TMR900 attaches to your PC s standard COM port and works as any regular serial input device Regardless of the interface type the TMR900 reads out and outputs touch button s ID code After the
3. TMR900 Touch Memory Button Reader TMR900 Programmable Touch Memory Button Reader with Keyboard Wedge Emulation and RS 232 interfaces User s manual TMR900 Touch Memory Button Reader Contents NORWOOD Information Introduction Device controls Installation Programming Operation Specifications NO BO 11 17 TMR900 Touch Memory Button Reader 1 Information 1 1 TMR900 series models e TMR900 Touch Memory Button Reader 1 2 Standard package includes e One TMR900 Touch Memory Button Reader comes with Master cable see Fig 1 e One User s manual 1 3 Optional accessories ordered separately WAS 1289 Keyboard Wedge Emulation K B W interface cable WAS 1288 RS232 interface cable 1990AH Touch Button model 1990A with plastic holder Mounting brackets 12V power adapter for 110V or 220V Fig 1 Cables Master RS232 K B W 1 4 FCC compliance 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 1 5 Trademarks The following are the trademarks of Dallas Semiconductor Corporation Dallas Dallas Semiconductor Touch Memory Button Touch Memory Windows 95 is a trademark of Microsoft Corp TMR900 Touch Memory
4. d the terminal screen is displayed Now try to read the Touch Button Press the Button firmly against the touch port as shown on Fig 7A The TMR900 will produce a short beep and the Status LED will turn orange thus indicating that the read was successful Avoid pressing the Touch Memory as shown on Fig 7B In this case the successful read may not be possible However no damage to the device will happen too WwW Aw B Pressing the touch button against touch port A correct B incorrect Fig 7 Correct A and incorrect B alignment of the touch button TMR900 Touch Memory Button Reader After read you should see the touch button s registration number printed in the terminal window 6A00000187AD8901 10 TMR900 Touch Memory Button Reader Important in order to be reprogrammed the TMR900 must be connected to the host computer via RS232 interface cable It is not possible to program the TMR900 through K B W interface cable The TMR900 can function with external keyboard attached as well as without external keyboard External keyboard type setting allows the user to choose Standard US keyboard German Keyboard French Keyboard or NO External keyboard option Note There is no difference in device functioning between the US German and French settings Those settings are reserved for the future device versions and absolutely equal under current TMR900 version Choosing either US German or French keyboard will produce he same ef
5. e and other forms of editing are not allowed If you make mistake Press lt Enter gt and choose to edit the same setting again Pressing lt Enter gt without typing any string disables the corresponding setting If string of more then 7 characters is entered it is truncated to first 7 characters For Setting 3 the user is prompted to make a choice from the list of available delimiters Enter Command Setting gt 3 Select Delimiter 1 lt CR gt 2 lt LF gt 3 lt CR gt lt LF gt 4 lt TAB gt Choose one lt Enter gt for none Selecting one of the digits sets the corresponding delimiter pressing lt Enter gt disables delimiter function External Keyboard is selected in the same manner The user is prompted with the following message Enter Command Setting gt 5 Select External Keyboard type 1 US Keyboard standard 2 German Keyboard 3 French Keyboard 4 NO External Keyboard present Choose one lt Enter gt for NO External Keyboard Selecting US German or French keyboard puts the TMR900 into the Slave mode of operation whereas external keyboard must be connected otherwise PC will not boot up properly Choosing NO External Keyboard present or pressing lt ENTER gt will put the TMR900 into the Master mode of operation In this mode external keyboard need not be connected for proper PC boot up The user may program the TMR900 to only transmit some portion of the ID code not the whole ID code
6. escribed in the Installation section e Run the terminal program of your choice e Set the communication parameters to 9600 bits per second 8 bits 1 stop bit no parity bit e Set the Echo option to Enabled in order to be able to see what you are typing For HyperTerminal e choose File Properties from the Main menu e When Properties dialog box opens click on the Settings tab e In the Settings tab click on the ASCII setup button ASCII setup dialog will open e Check enable Echo typed characters locally option e Close the dialog by clicking OK button e To enter setup type in the word SETUP in uppercase capital letters and press lt Enter gt e The TMR900 will execute 4 consecutive short beeps and enter the setup mode During setup the Status LED will constantly blink in green color 12 TMR900 Touch Memory Button Reader Once setup is entered the TMR900 will display i e print on the terminal screen the following title x TMR900 SETUP Type H for Help The title will be followed by the setup prompt Enter Command Setting gt The user interacts with the setup program by entering commands The list of available commands can be obtained by typing in the H Help command The TMR900 will print out the following message Enter Command Setting gt h Available Commands H Prints this message P Prints the current status of all settings D Loads default values
7. fect TMR900 will expect an external keyboard to be attached Standard desktop PC will not boot up properly if external keyboard is selected in the Setup but no keyboard actually attached to the TMR900 No Keyboard or Keyboard Error message will be displayed Choosing NO external Keyboard will put TMR900 into so called Master mode of operation No external keyboard is required in this mode PC will boot up properly External keyboard connected to the TMR900 running in the Master mode will still function however some features will not work properly for example CAPS lock and other lamps will always be OFF The TMR900 allows the user to customize the data output format In particular the user may define customize the following optional fields that will be output together with the Touch Button s ID code itself optional string that precedes the ID code optional string that follows the ID code Delimiter special character or 2 that is transmitted after the Postfix and intended to separate ID codes from one another From character 1 to 16 Those 2 setting allow the user to define the Number of Characters portion of ID code that will be actually sent to PC With all 3 optional fields enabled the output format will be as follows Prefix ss s WD code _Postfix_ Delimiter _ Note all fields except D code main field are optional The user can disable any field by setting it s length to zero Ability to customize the data o
8. for all settings E Exits the setup Available Settings Prefix up to 7 characters long Postfix up to 7 characters long delimiter special symbol selection OnRemove up to 7 characters long External Keyboard type From Character 1 16 Number of Characters 1 16 NOU BWNHE Entering P Print command lets the user evaluate the current status of all settings The TMR900 is shipped from the factory with Prefix Postfix and OnRemove fields disabled and delimiter set to lt LF gt lt CR gt The P command will print out the following Enter Command Setting gt p Current Settings are 1 PLEELX eke ew alee ee ee lt Disabled gt 2 POSCELX o Wot aihd Mass BE eS lt Disabled gt 3 DELIAMLCES sac akc d Es ee ES lt CR gt lt LF gt 4 OnRemove lt Disabled gt 5 External Keyboard type US Keyboard Standard 6 From character 1 7 Number of characters 16 The user can return to these default factory settings at any time by entering a D Default command Enter Command Setting gt D Default values has been loaded 13 TMR900 Touch Memory Button Reader To alter the value of any setting type in the appropriate setting number For setting 1 2 and 4 you will be prompted to enter the string of up to 7 characters long Type the desired string and press lt Return gt key Enter Command Setting gt 1 Input Prefix Max 7 char lt Enter gt for none Note Backspac
9. n DOS you will see something like that C gt 6A00000187AD8901 Bad command or file name C gt Don t be surprised at the computer s attempt to interpret this code as some command you want to process PC itself cannot discriminate between regular manual keyboard input and TMR900 input And TMR900 also emulates the lt Enter gt keystroke after each read this is a default factory setting that can be customized For more information refer to the Programming section of this Manual This causes the DOS to process the line as a regular command 4 2 Installing the TMR900 with the RS232 interface cable To your PC s COM port t From 9 12V wall adapter Fig 6 Attaching TMR900 to the PC via RS232 interface Attention you will need to have at least one free COM port on your PC in order to install this device You will also need a wall power adapter with output voltage in the 9 12V range TMR900 Touch Memory Button Reader To connect TMR900 to the PC via RS232 interface Turn off your PC Locate an unused COM serial port on your PC Plug the 25 pin connector of the RS232 interface cable into PC s COM port Plug the RS232 interface cable into the 15 pin connector found on the Master cable coming out of the TMR900 Plug the power adapter into the wall outlet and it s connector into the socket found on the RS232 interface cable 25 pin connector On power up the TMR900 should produce the long BEEP sou
10. nd and the Status LED will turn green To check the device functioning you will need to use some terminal software The term terminal refers to the ability of the software to send receive and display the data that is being transmitted through the serial COM port of your computer There are dozens of suitable programs on the market However one program in particular is very common and comes as a part of Windows 95 operating system This program is called HyperTerminal and can be found in the Accessories folder of the Programs group of the Start menu Note The explanation below assumes that you have a basic knowledge of Windows 95 To test the TMR900 functioning Launch the HyperTerminal On start up the Dialog box will be displayed requesting you to type in the name of your connection You can supply any name for instance TEST The next dialog box will ask for telephone number This is because the HyperTerminal also works with modems In your case the telephone number is not applicable so you don t have to enter it Just select the appropriate COM port from the Connect using drop down list For example if your TMR900 is attached to the COM2 you should select Direct to COM2 The next dialog will prompt for port settings Here is what you should choose Bits per second 9600 Data bits 8 Parity None Stop bits 1 Flow control None After this dialog closes the program is finally satisfied an
11. nt Setup exited and resume normal operation 15 TMR900 Touch Memory Button Reader After you have installed tested and programmed the device there is little to learn about the TMR900 s operation However there are few things that should be commented on 6 1 Debounce logic The TMR900 features a so called debounce logic which prevents the device from reading the same Touch Buttons ID many times The TMR900 reads the Touch Button s ID code so fast that even briefest contact between the Touch Button and touch port can be enough for successful read Because of natural human hand shaking each time you press the Button against the port you actually produce many good touches which if not for the debounce logic could potentially send several similar codes to your PC To avoid this the TMR900 requires you to completely remove the Touch Button from the port for at least 1 5 seconds before this very Touch Button can be read again This rule has no effect on consecutive reading of different Touch Buttons You can read them without any delay because they all carry different ID codes 6 2 Status LED When you press the Touch Button against the port the data is only sent to your PC once because of the debounce logic see the section above However the status LED remains orange until you remove the Button This is because the successful reads are actually go on and on only the data is not sent to the PC If the Status LED t
12. of their type and function have this unique registration number and utilize one single standard protocol for registration number readout Therefore you can use the TMR900 to read the registration number of any existing Touch Button The TMR900 also allows the user to customize the ID code output format by programming a Prefix and Postfix strings as well as several other options For more details refer to the Programming section of this Manual TMR900 Touch Memory Button Reader 3 Device controls Fig 3 shows the TMR900 Touch Memory Reader Status LED Fig 3 TMR900 Touch Memory Reader Located on the upper cover is the touch port To read the Touch Button just press it firmly against the touch port There is also a 3 color red green and orange status LED When TMR900 is powered up but no touch memory is being read the green light is on When normal Touch Memory read is in progress the orange light is on When the Touch Memory read is not successful the red light is on TMR900 Touch Memory Button Reader 4 Installation The Installation process depends on what kind of interface cable you are using Please refer to whatever section is applicable to you 4 1 Installing the TMR900 with the K B W Interface cable ri gt Ca Yo eo To your PC s keyboard connector CD AHA Fig 4 Attaching the TMR900 to the PC via K B W interface cable To connect the TMR900 to the PC via K B W interface Tu
13. r is normally required to scan the ID card Touch Memory Button in this case before he will be able to enter the order The Touch Button must be present attached to the touch port during the whole period of order entry The OnRemove feature allows to control the presence of a Touch Button Once it is removed the OnRemove string code will be send to the host to notify the software The OnRemove string format is as follows OnRemove Delimiter Note Delimiter is the same for ID code transmission and for OnRemove string If OnRemove is disabled the Delimiter is also not transmitted All settings defined by the user are stored in the non volatile memory Once set they remain intact until the user redefines them To change the settings the user must first connect the TMR900 to the PC or any other suitable data terminal via RS232 interface as described in the Installation section of this Manual No special host software is required for programming Rather the TMR900 uses a terminal style programming Any host terminal software capable of sending and receiving data over the serial channel is good for this purpose One widely available program is HyperTerminal it is included into the standard Windows 95 package Refer to the Installation section of this Manual for step by step description on how to use this program with the TMR900 To program the TMR900 settings e Attach the TMR900 to the host computer via RS232 interface as d
14. read you can compare the data sent to your PC with the data engraved on the touch button s housing Fig 2 shows the Touch Memory Button with the ID code engraved on it After the read computer will receive a full 16 digit string shown below the button DALLAS 9702 REGISTERED E3 6A 01 00000187AD89 0S 1 990 AF 9 Checksum Serial number Family code 6A 00000187A D8901 Unique registration number Fig 2 Touch Memory Button from Dallas Semiconductor and it s unique 16 character registration number Each of the 16 characters can be a digit from 0 to 9 or a capital letter from A to F The ID code of any Touch Memory Button is absolutely unique Dallas Semiconductor guarantees that no two Touch Memory Buttons will ever be manufactured with the same ID code Thus the Button can be used for various identification purposes to identify objects people etc also as a key for automated password entry and in other areas requiring a unique code In fact the 16 character ID code consists of 3 fields TMR900 Touch Memory Button Reader Family code Dallas Semiconductor manufactures more than dozen different Touch Memory models Each model has a unique family code Serial number This serial number is unique for each and any member of the device family CRC 2 control characters used to verify the correctness of the data All together Unique 16 characthers serial number All Dallas Semiconductor s Touch Memories regardless
15. rn off your PC Unplug the keyboard Examine the K B W interface cable to find 3 different connectors One of them looks exactly like your keyboard s connector Plug this connector into your PC Plug your keyboard into another round connector found on the K B W interface cable Finally plug the K B W interface cable into the 15 pin connector found on the Master cable coming out of the TMR900 Turn your computer on On power up the TMR900 should produce the long BEEP sound and the Status LED will turn green Check the normal functioning of your keyboard by sending some keystrokes to your PC press some keys toggle CAPS LOCK etc The keyboard should work normally as TMR900 features absolute transparency for all communications between keyboard and PC Now try to read the Touch Button Press the Button firmly against the touch port as shown on Fig 5A The TMR900 will produce a short beep and the Status LED will turn orange thus indicating that the read was successful Avoid pressing the Touch Memory as shown on Fig 5B In this case the successful read may not be possible However no damage to the device will happen too TMR900 Touch Memory Button Reader 4 Am B Pressing the touch button against touch port A correct B incorrect Fig 5 Correct A and incorrect B alignment of the touch button After this you should see the Touch Button s registration number printed on your PC s display If you are i
16. urns red this indicates the unsuccessful read There are 2 possible causes for the read error The first one is a faulty Touch Button itself However this is highly improbable The second cause is the incorrect touch you are making There is a possibility to misalign the Button is such a way that it s bottom cover will short circuit both outer and inner contacts of the touch port In this case the good touch is impossible and the Status LED will be red until you remove the Button or align it properly 16 TMR900 Touch Memory Button Reader 7 Specifications Reading capabilities Reads the ID code of all Touch Buttons conforming to Dallas Semiconductor 1 wire protocol PC interfaces RS232 and K B W Keyboard Wedge Emulation Power supply 5V through K B W interface cable or 9 12V through RS232 cable Power consumption 50mA max Operation conditions Temperature range 0 45 Degrees C Humidity 10 90 As described in Dallas semiconductor s Book of Touch Memory Standards 17
17. utput format is very useful as it allows the user to fine tune the TMR900 functioning to the requirements of the host software By setting the right data in the optional fields the user can avoid manual key entry prior and or after the ID code transmission Consider for example that some existing software requires to first type in the CD_ command followed by the ID code followed by the lt LF gt lt CR gt character to execute command If not for programmable fields the user would have to manually type in the command then scan the touch memory and then press lt Return gt key With optional fields the user can program the command into the Prefix and choose an appropriate delimiter lt LF gt lt CR gt to completely avoid any manual key entry TMR900 Touch Memory Button Reader The user may also tune the ID code output format by choosing to transmit only some portion of the ID code This can also be very handy when accommodating the TMR900 for use with the existing software Another customizable feature of TMR900 is an optional OnRemove string This string is not transmitted together with the code Rather it is sent whenever the touch memory is removed detached from the touch memory port This feature is useful in applications where touch memory is used as an access key and data entry or other manipulation is not allowed when Touch Button is not present One good example is an order processing terminal in a restaurant The waite
Download Pdf Manuals
Related Search
TMR900 tmr9001 tmr9003 tmr9002