GTCO CalComp BIT PAD TWO DATA Скачать руководство пользователя страница 41 | Manualshive

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Bit Pad Two 41

Accuracy

The similarity of a distance measured by the tablet with the actual distance.

Cursor Eccentricity

How much the electrical center varies from the crosshair center as the cursor is rotated
through 360 degrees.

Jitter

Repeatability error of short duration caused by electrical noise.

Proximity

Greatest distance above the drawing area that the pointing tool can be raised and still be
sensed by the tablet.

Repeatability

How closely you receive the same coordinates from the repeatedly locating the point.
Repeatability takes temperature range and jitter into consideration.

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Содержание BIT PAD TWO DATA

Страница 1: ...put Codes Bit Pad Two Packed Binary Format Bit Pad ASCII BCD Format Guidelines for Writing a Software Driver Operating Characteristics and Commands Section A Controlling the Report Flow and Content Pr...

Страница 2: ...ity Power Section B Unpacking and Installation Unpacking Installation Changing the Stylus Refill Section C FCC Considerations Section D Care and Cleaning Section E Service Specifications Physical Desc...

Страница 3: ...or or stylus data power cable and power supply Tablet Table like surface The tablet can tilt or lie flat Cursor Handheld device that s used with the tablet to locate points A cursor has a crosshair fo...

Страница 4: ...t The host is represented by a computer The stylus or cursor position is expressed as an X Y coordinate pair One coordinate pair is called a report Reports can only be collected when the stylus or cur...

Страница 5: ...ish Resolution is a measure of precision and is expressed in lines per inch lpi or lines per millimeter lpmm Counts of Resolution Unit of measure one count is the distance between two lines of resolut...

Страница 6: ...or successful communication between a Bit Pad Two and its host the hardware interface and configuration parameters must be compatible The hardware interface is RS 232C The configuration parameters are...

Страница 7: ...ontrol is disabled the data tablet only responds to the following commands Section C Baud Rate Baud rate is the number of bits transmitted each second between host and peripheral Bit Pad Two or periph...

Страница 8: ...232C interface It is full duplex asynchronous and serial View the sections below for the pin assignments and signal levels Connector Pin Assignments The data power cable is a single shielded cable ter...

Страница 9: ...ble Pin Assignments for the 25 Pin D Connector Signal Levels The table below specifies the signal levels for data transmissions RS 232C Signal Levels The source of the above tablet is the EIA Standard...

Страница 10: ...he report format You can opt to have parity enabled or not If parity is enabled it can be even or odd Select the number of stop bits to be one or two You have two cursor output codes to choose from Th...

Страница 11: ...and 1 when out of prox Flag bit identifying the stylus or cursor buttons being pressed The cursor output codes are switch selective On the 3 button cursor the buttons are distinguished by raised dimpl...

Страница 12: ...mat is SXXX SYYY F CR or SXXX SYYYY F CR LF As shown in the above formats the terminator can be a carriage return CR or a carriage return and a line feed LF This is switch selective NOTE The character...

Страница 13: ...order for the Bit Pad Two to be connected The driver is a software subroutine that collets and decodes Bit Pad Two reports for use by another master program This section provides some guidelines in t...

Страница 14: ...Bit Pad Two 14 General Flowchart for Master Program to Read and Process Data Tablet Reports...

Страница 15: ...Bit Pad Two 15 Detail A Get and Decode Reports Subroutine...

Страница 16: ...Bit Pad Two 16 Detail B Data Input Subroutine...

Страница 17: ...t the Bit Pad Two s operating characteristics or initiate the functions with commands from the host or with the switches inside the tablet The table below identifies the selector methods available Met...

Страница 18: ...ad Two command buffer can hold ten bytes therefore up to ten bytes can be sent to the Bit Pad Two in quick succession Section A Controlling the Report Flow and Content Use the operating characteristic...

Страница 19: ...etting two for the mode and three for the Report Rate Stream Mode Bit Pad Two continuously issues reports It is not necessary to press a cursor or stylus button NOTE To eliminate redundant reports fro...

Страница 20: ...h as 2 rps or 70 rps are approximations The rate at which the data tablet actually sends reports depends on the baud rate and the report format The following tables identify the rates you can expect R...

Страница 21: ...emote Request Mode the Bit Pad Two issues one report each time the host sends a trigger command Issue the mode command once Thereafter send only a trigger command for each report After Remote Request...

Страница 22: ...the active area shrinks accordingly The following table specifies the maximum length of each active area s axis from the tablet origin for resolutions higher than 254 lpi Relative Mode Command Switch...

Страница 23: ...g This relationship is quantified in the table below Increment Mode Command Switch Setting In Increment Mode the Bit Pad Two sends a report only when the cursor or stylus has traveled a minimum distan...

Страница 24: ...maginary square Example Part A shows the imaginary square created around each report point the increment is five Part B shows the reports issued as the cursor or stylus travels across the tablet the i...

Страница 25: ...et is in Stream Switch Stream or Point Mode together with Increment Mode and a button is pressed the last coordinate pair that satisfies the increment is reported When the data tablet is in Stream Mod...

Страница 26: ...y switch rather than by command the Report Rate also set by switch is valid Consequently the Report Rate has priority over buttons or remote triggers Section C Other Commands Resolution Command Switch...

Страница 27: ...sent from the Bit Pad Two to the host These commands control data flow regardless of the report mode Stop Transmission and Start Transmission are equivalents of the transmission protocols XOFF and XO...

Страница 28: ...urn the operating characteristics to their current switch settings The factory set defaults are Report Mode Stream Coordinate System Absolute Report Rate 100 rps Increment 0 Resolution 200 lpi After a...

Страница 29: ...rsor or stylus across the tablet s active area The output is easier to interpret if you have the report format set for ASCII BCD The X and Y values should increase as the cursor or stylus slides from...

Страница 30: ...est command to perform tests on the tablet and cursor or stylus Self Test checks Analog circuitry Cursor or stylus connection operation and location Digital circuitry After the test is performed the r...

Страница 31: ...e host is working properly 4 If possible issue each diagnostic command and review the results Chapter 6 Operating Environment Installation Care and Service Section A Operating Environment Temperature...

Страница 32: ...ecord the damaged items on the freight bill 4 Write to the carrier state that the shipment was damaged when it was received and request an inspection 5 Keep the shipment in its original container unti...

Страница 33: ...ing and installing a Bit Pad Two is as follows 1 Configure Bit Pad Two data tablet 2 Adjust the tilt or use flat 3 Attach stylus holder if applicable 4 Connect the stylus or cursor to the tablet 5 Att...

Страница 34: ...Bit Pad Two 34...

Страница 35: ...ard especially the microprocessor can be damaged or destroyed by electrostatic discharges This can be avoided by preventing static electricity from building up Have an antistatic floor covering under...

Страница 36: ...aphite or ink on the switch This could cause the switch to malfunction 2 Adjust the Tilt or Use Flat Bit Pad Two can tilt or lie flat The tilt mounting is already attached to the back of the tablet wh...

Страница 37: ...paper from the adhesive tape Attach the taped side to the back of the tablet 4 Connect the Stylus or Cursor to the Tablet The stylus or cursor plugs into a phone jack on the underside of the tablet Cu...

Страница 38: ...ation lines Install an adapter cable between Bit Pad Two data power cable and the host 6 Connect the Tablet to the Power Source Plug the four pin connector of the pigtail cable into the power supply I...

Страница 39: ...and water Never use a hydrocarbon cleaner such as acetone or an abrasive cloth These mar the tablet finish Section E Service For technical support and service contact your local GTCO CalComp by Turni...

Страница 40: ...E C Universal power receptacle Japan 90V to 110V 42Hz to 62Hz NEMA 1 15P plug Material and Cosmetics Color Pearl white Finish Matte silk like Material Cycolac KJW flame retardant ABS plastic Operating...

Страница 41: ...sor is rotated through 360 degrees Jitter Repeatability error of short duration caused by electrical noise Proximity Greatest distance above the drawing area that the pointing tool can be raised and s...

Страница 42: ...Bit Pad Two 42 Appendix B ASCII Conversion Chart...

Страница 43: ...Bit Pad Two 43...

Страница 44: ...Bit Pad Two 44...

Страница 45: ...xceptions regarding Bit Pad Two Does not require biasing pulling a magnet over the tablet Report formats binary and ASCII BCD include a bit or character identifying whether the stylus cursor is in or...

Страница 46: ...Bit Pad Two 46 Switch Settings DIP Switch 1...

Страница 47: ...Bit Pad Two 47 Switch Settings DIP Switch 3...

Страница 48: ...ation contained in this document is subject to change without notice GTCO CalComp by Turning Technologies assumes no responsibility for technical or editorial errors or omissions that may appear in th...

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