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Understanding RS232 Communications

Page A-2

Mastertech 3100 Operator’s Manual

RS232 INTERFACE SIGNALS

PIN

NUMBER

SIGNAL NAME

INPUT/OUTPUT

CONNECT TO:

1 NOT

USED

2 DTR

OUTPUT

DSR

CARRIER DETECT

INPUT

CARRIER DETECT

4 CTS

a. CTS and RTS are connected together inside the tester, but are not used as handshake signals by the tester.

RTS

5 TRANSMIT OUTPUT

RECEIVE

6 RECEIVE INPUT

TRANSMIT

7 RTS

CTS

SIGNAL GROUND

9 DSR

INPUT

DTR

10 NOT

USED

SIGNAL LEVELS

DATA FORMAT

BAUD RATES

LOGIC “1” - 12 V 1 START BIT
LOGIC “0” +12 V 8 DATA BITS

1 START BIT
8 DATA BITS
1 STOP BIT
NO PARITY

SOFTWARE
SELECTABLE:
1200 bps
2400 bps
4800 bps
9600 bps
19200 bps
38400 bps
57600 bps
115200 bps

TABLE A-1. RS232 Interface Specifications

PIN 1

PIN 10

FIGURE A-1. RS232 Socket on Tester

RJ45 10-Pin Modular Phone Connector

Содержание mts 3100 mastertech

Страница 1: ...MTS 3100 Mastertech Operator s Manual ...

Страница 2: ...n and shall not be reproduced duplicated or copied in whole or in part or made available to any person firm or corporation without the prior written permission of Vetronix Corporation Vetronix Corporation Copyright 2007 Manual P N 08002923 Rev B Tech 1 Tech 1A and Mastertech are registered trademarks of Vetronix Corporation Printed in USA 05 07 ...

Страница 3: ...onnected Consult the dealer or an experienced radio TV technician for help Foreword The Mastertech Multi Function Tester and associated Program Card s are designed for use by trained service personnel to diagnose and repair automotive electronic systems Every attempt has been made to provide complete and accurate technical information based on factory service information available at the time of p...

Страница 4: ......

Страница 5: ...Back and Recycling 1 4 2 DIAGNOSTIC CAPABILITIES 2 1 MASTERTECH KIT OVERVIEW 2 1 The Mastertech 2 1 3 MASTERTECH KIT COMPONENTS 3 1 MASTERTECH FEATURES 3 2 PROGRAM CARDS AND CARTRIDGES 3 3 Program Cards 3 3 Tech 1 Cartridges 3 3 I O Cartridges 3 3 KEYPAD 3 4 MASTERTECH KEY FUNCTIONS 3 5 DISPLAY 3 6 DATA LINK CONNECTOR AND CABLE 3 6 VEHICLE ADAPTERS 3 6 POWER SOURCES 3 7 BATTERY BACKED OPERATION 3 ...

Страница 6: ...CREENS 5 6 6 USING THE PORT CONNECTIONS 6 1 RS232 PORT 6 1 INSTRUMENTATION PORT 6 2 DIAGNOSTIC TEST LEADS 6 2 7 FINISHING UP 7 1 CLEANING AND STORING YOUR TESTER 7 1 8 BATTERY CHARGING AND REPLACEMENT 8 1 NICAD BATTERY PACK 8 1 Charging the Battery Pack 8 2 Replacing the NiCad Batteries 8 2 LITHIUM BATTERY 8 4 Replacing the Lithium Battery 8 4 A UNDERSTANDING RS232 COMMUNICATIONS A 1 RS232 Interfa...

Страница 7: ...Mastertech 3100 Operator s Manual TOC 3 Mastertech Fails to Power Up B 3 C GLOSSARY AND ABBREVIATIONS C 1 INDEX Index 1 ...

Страница 8: ...TOC 4 Mastertech 3100 Operator s Manual ...

Страница 9: ...ated components to the Mastertech and the vehicle and operating instructions for the test modes available in the program card or cartridge The program card and cartridge operator s manuals should be used in conjunction with the Repair Manual for the vehicle being tested SCREEN DISPLAYS IN THIS MANUAL The data shown in the screen displays in the Mastertech Operator s Manual is sample data for illus...

Страница 10: ... first key while pressing the second key For example P X means to press and hold the P key then press the X key WARNINGS CAUTIONS NOTES In the Mastertech and program card manuals WARNINGS indicate there is a possibility of injury to you or other people CAUTIONS indicate the possibility of damage to the component being repaired NOTES providing additional information are separated from the text but ...

Страница 11: ... free of charge This warranty does not cover any part that has been abused altered used for a purpose other than that which it was intended or used in a manner inconsistent with instructions regarding its use including but not limited to the following Damage due to improper product operation or product modification Damage due to use of non Vetronix supplied cables and accessory items or unauthoriz...

Страница 12: ...of purchase a brief explanation of the problem and your return address No CODs please When the unit is received at the Vetronix Service Center it will be diagnosed repaired or replaced and returned If the unit is determined to be in warranty it will be repaired or replaced with no charge and returned freight prepaid If the unit is determined to be out of warranty it will be repaired for a nominal ...

Страница 13: ...r Cad Bayar Is Merkezi NO 109A D 8 81090 Kozyatagi Istanbul Turkey Phone 90 216 445 90 12 Fax 90 216 445 90 13 Email info icteknoloji com WWW www icteknoloji com Ireland Advanced Diagnostics Unit 5 Alliance Close Attleborough Fields Industrial Estate Nuneaton Warwickshire CV11 6SD Phone 44 24 76757951 Fax 44 24 76757952 Email shaun advanceddiagnostics co uk WWW www advanceddiagnostics co uk Romani...

Страница 14: ...0 Operator s Manual United Kingdom Advanced Diagnostics Unit 5 Alliance Close Attleborough Fields Industrial Estate Nuneaton Warwickshire CV11 6SD Phone 44 24 76757951 Fax 44 24 76757952 Email shaun advanceddiagnostics co uk WWW www advanceddiagnostics co uk ...

Страница 15: ... associated sensors actuators and cable harnesses Capable of operating either as a stand alone tool or as the control unit for the toolset the Mastertech employs plug in program cards and cartridges and can be adapted to operate with virtually all automotive electronic systems from the simplest to the most complex The tester supports diagnosis of electronic systems on most US vehicles as well as m...

Страница 16: ...rol actuator output data Display ON OFF status of switch signals Test feed back systems such as the O2 sensor Command clearing of some ECM ECU trouble codes Troubleshoot using the Diagnostic Test Leads Troubleshoot intermittent problems with Snapshot mode Print test results to provide a permanent record ...

Страница 17: ...nction Tester Multi Function Tester Program Card Diagnostic Test Lead Set Diagnostic Test Lead Adapter Data Link Connector DLC Cable DC Power Cable DLC Self Test Adapter RS232 IP Self Test Adapter GM 12 14 Pin DLC Adapter Ford 7 14 Pin Adapter Chrysler 6 14 SCI DLC Adapter GM 5 Pin Adapter GM Pin E Adapter CAN VIM Vehicle Interface Module and OBD II Adapter Cable AC Power Supply Mastertech Boot Ma...

Страница 18: ...n adjustable hand strap on the back provides added security while holding the tester A built in support stand allows the tester to be tilted to the most convenient viewing angle when it is not handheld FIGURE 3 1 Tester Features DISPLAY LEDs KEYBOARD RS232 PORT DLC INSTRUMENTATION PORT NiCAD BATTERY PACK POWER CONNECTOR SCREEN CONTRAST PROGRAM CARD CARTRIDGE SLOT CONTROL ...

Страница 19: ...M CARDS Multiple program cards may be required to provide the complete diagnostic testing capabilities of the toolset Program cards are installed in the slot on the upper right side of the tester below the display The program card slot is keyed so the card can only be installed in the proper orientation TECH 1 CARTRIDGES Most cartridges designed for use with a TECH 1 or TECH 1A tester are fully co...

Страница 20: ... and P keys are used to modify other keys For example if the instructions say press P x press the P key first and hold it down while pressing the x key Some keys such as the numeric 0 9 and y and n keys have different functions depending on which test mode is in use The h key displays a list of the active keys and their functions in the current test mode A chart of the keys and their functions is ...

Страница 21: ...ht y n Answer questions asked on the tester display Display and select data parameters to monitor e Confirm information on the tester display Terminate a numeric entry Move ahead in procedures Select a highlighted menu entry h Display a list of the active keys and a summary of the functions v Receive input from an external device s Send information data only to an external device such as a printer...

Страница 22: ... thumb wheel on the right side of the tester DATA LINK CONNECTOR AND CABLE Communication between the tester and the vehicle s electronic systems is through the heavy duty 14 pin to 26 pin Data Link Connector DLC cable that is connected to the bottom center of the tester VEHICLE ADAPTERS Adapters for connecting the DLC Cable to the DLC on GM Ford and Chrysler vehicles are provided in the Mastertech...

Страница 23: ... conditions When the vehicle ignition is off While the engine is cranking Temporary off vehicle stand alone usage Although the tester will operate on the battery pack it is recommended that the tester is connected to the vehicle s 12 volt power supply during testing See Chapter 8 for battery charging and replacement instructions BATTERY BACKED MEMORY Tester configuration and data that has been cap...

Страница 24: ... visible only when activated The green light on the right is lit when the tester is in battery charge mode while the display is off In the display below the green LED beneath KNOCK RETARD will be on when KNOCK RETARD is on and the red LED will be on when KNOCK RETARD is off For switched signals such as A C or Brake Switch RED means OFF and GREEN means ON FIGURE 3 5 LEDs Red Green ...

Страница 25: ...ommunication link from smart instrumentation devices These devices contain microprocessors which can perform specific diagnostic functions and send information to the tester The Instrumentation Port also contains circuits which can be used for making direct signal measurements This capability is used to support instrumentation devices which may not require a microprocessor The Diagnostic Test Lead...

Страница 26: ...ctuators harness and connectors The Diagnostic Test Leads are also used for signal input to the oscilloscope as well as timing frequency duty cycle pulse width measurements on vehicle signals NOTE The Diagnostic Test Lead set provided in the Mastertech kit is only intended for automotive type signal measurement It is not a lab quality Digital Volt Ohm Meter DVOM or oscilloscope FIGURE 3 7 Diagnost...

Страница 27: ...devices The RS232 connection allows the tester to transfer and receive data to and from other RS232 compatible devices such as a remote host computer or serial printer REMOTE HOST COMPUTER Using the RS232 port the Mastertech can transfer and receive data to and from remote host computers including personal computers computer based test equipment at data rates up to 115 2k baud FIGURE 3 8 RS232 Por...

Страница 28: ... to a compatible serial printer such as the optional VP 411 VP 414 the following functions are available Print diagnostic parameters Print trouble codes Print test results Print display information including bar graphs and plots REMOTE HOST COMPUTER VP 411 VP 414 PRINTER TESTER FIGURE 3 9 RS232 Port Devices ...

Страница 29: ...D 23 KEY MEMBRANE GRAPHIC DISPLAY 160 x 160 DOT GRAPHIC LIQUID CRYSTAL DISPLAY WITH BACK LIGHTING LED DISPLAY 8 LEDs 4 RED 4 GREEN AUDIO OUTPUT VARIABLE FREQUENCY BEEPER 200 Hz TO 10 kHz POWER SOURCES 12 VOLT VEHICLE POWER NICAD BATTERY PACK APPROXIMATELY 2 HOUR OPERATION LITHIUM BATTERY FOR CLOCK CALENDER AND RAM APPROXIMATELY 2 YEAR LIFE PLUG IN MODULES DIAGNOSTIC APPLICATION PROGRAM CARD TECH 1...

Страница 30: ...Mastertech Kit Components Page 3 14 Mastertech 3100 Operator s Manual ...

Страница 31: ...tery 1 To activate the NiCad battery pack see Figure 4 1 Remove the plastic strip that is visible on the back of the Mastertech Remove the strip completely 2 To activate the Lithium battery see Figure 4 2 to remove the NiCad battery pack Press on the tab at the bottom end of the battery pack while pulling the battery pack toward the bottom of the tester FIGURE 4 1 Activating NiCad Battery Remove P...

Страница 32: ...hapter 5 to install a program card in the Mastertech 6 Press the o key to turn the tester on If the tester displays ATTENTION TESTER BATTERY VOLTAGE IS LOW see Chapter 8 to charge the batteries 7 The program card operator s manual explains how to setup the tester s internal functions Some of the internal functions are listed below CLOCK CALENDAR SELECT BAUD RATE SELECT PRINTER UNIT CONVERSION FIGU...

Страница 33: ...irmly into the slot located on the upper right side of the tester The slot is keyed so the card can only be installed one way don t force it if the cartridge doesn t slide in easily When removing the program card pull it straight out of the tester without rocking it up and down TECH 1 OR I O CARTRIDGE To install a TECH 1 or I O cartridge first remove the cover from the top rear of the tester Inser...

Страница 34: ...he 26 pin end of the DLC cable to the bottom of the tester then tighten the screws 2 Depending on the vehicle make and the tests to be performed connect the appropriate vehicle adapter to the end of the DLC cable 3 Connect the other end of the vehicle adapter to the vehicle DLC 4 Connect RS232 and Instrumentation Port devices that you plan to use to the Mastertech RS232 devices such as a printer a...

Страница 35: ... GM PIN E ALDL DLC ADAPTER GM 12 14 PIN DLC ADAPTER CHRYSLER SCI 6 14 PIN DLC ADAPTER FORD 7 14 PIN DLC ADAPTER MFT PROGRAM CARD APPLICATION CARTRIDGE 24 14 Pin Controller Area Network CAN Vehicle Interface Module P N 02003211 16 24 Pin OBD II Cable with CAN P N 02001744 FIGURE 5 2 Mastertech Cable Connections ...

Страница 36: ...the positive battery post and the black clip to the negative post Insert the cigarette lighter plug end of the DC Power Cable into the cigarette lighter socket on the Battery Adapter Cable AC 12 VOLT POWER SUPPLY Connect the AC 12 volt power supply to the right side of the tester then plug the power supply into a standard wall outlet BATTERY PACK Press the o key to power the tester via the interna...

Страница 37: ...ck allows you to turn the tester on without being connected to external power Simply press the o key To turn the Mastertech off press P x then release the P key before releasing the x key DC POWER CABLE DC POWER CABLE BATTERY BATTERY ADAPTER CABLE OPTIONAL CIGARETTE LIGHTER AC DC ADAPTER OPTIONAL FIGURE 5 3 Powering the Mastertech ON EXIT ON FIGURE 5 4 On and Off Keys ON Key OFF Keys ...

Страница 38: ...creen is displayed see Appendix B HELP SCREENS A list of the active keys for the screen displayed on the tester is available by pressing the H key The HELP screens display information about which key to press to select a different mode how to move the marker cursor or highlight print or exit from the display The example below illustrates the Key Help screen displayed when H is pressed while oscill...

Страница 39: ...cated at the bottom left end of the tester The operation of the RS232 functions are dependent on the program card or cartridge and the RS232 device being used Operating procedures for these functions are included in the operator s manuals for the program card or the RS232 device NOTE One RS232 function which is common to all program cards is the Screen Print function If you are using a compatible ...

Страница 40: ...he tester Connect the Diagnostic Test Lead to the Test Lead Adapter Install test lead tips test pin probes alligator clips or insulation piercing hooks onto the Diagnostic Test Lead The Diagnostic Test Leads provide input to the following test capabilities Digital Volt Meter Duty Cycle Measurement Frequency Counter Oscilloscope NOTE The Diagnostic Test lead set provided in the Mastertech kit is on...

Страница 41: ...Using the Port Connections Mastertech 3100 Operator s Manual Page 6 3 FIGURE 6 3 Diagnostic Test Lead Set and Adapter Diagnostic Test Lead Adapter Diagnostic Test Lead Diagnostic Test Lead Tips ...

Страница 42: ...Using the Port Connections Page 6 4 Mastertech 3100 Operator s Manual ...

Страница 43: ...g cables from the vehicle 5 Turn the tester off by pressing P X 6 The program card and or cartridge may be stored in the tester or removed and stored in the program card slot in the storage case 7 Inspect the cables connectors and cigarette lighter for damage and corrosion Replace faulty components immediately 8 Store the Mastertech cables and adapters in the storage case CLEANING AND STORING YOUR...

Страница 44: ...olvents such as petroleum based cleaning agents Acetone Benzene Trichloroethylene etc Although the tester and accessories are water resistant they are not waterproof thoroughly dry them prior to storage Always clean the tester screen by wiping vertically only Never use a circular motion on clear plastics ...

Страница 45: ...owever on some vehicles power is not available at the cigarette lighter when the ignition is off or when the engine is cranking The NiCad battery pack provides power to the tester under these conditions When fully charged the battery pack can power the tester for up to two hours To confirm that the battery pack is sufficiently charged for testing 1 Turn the Mastertech on press O before connecting ...

Страница 46: ...vehicle s battery with the Battery Adapter Cable and cigarette lighter DC power cable supplied with the tester kit This will allow operation of all diagnostic procedures with the tester and will start recharging the battery pack at the same time It is recommended that the battery pack be charged overnight using the AC DC power supply at least once a week or more often if required You can t charge ...

Страница 47: ... the battery pack with one hand and position a screwdriver flat blade as shown in the figure below Push the screwdriver blade against the battery pack side wall and the battery cover While pushing twist the screwdriver slightly until the cover pops loose from the locking tabs Repeat for the other side 5 Remove the six NiCad batteries FIGURE 8 2 Removing the Battery Pack Slide Batter Pack Toward Bo...

Страница 48: ...n setup information and data in its memory without being connected to an external power source The Lithium battery should last approximately two years before replacement is necessary The tester displays the screen at left when the Lithium battery is discharged dead or a new battery has just been installed This screen is also displayed if the plastic strips are not removed before operating the test...

Страница 49: ...the metal strap that holds the battery in place Note that the plus side of the battery is toward you 7 Remove the battery 8 To install the new battery lift the metal strap and insert the battery so the plus side is facing you 9 Install the plastic cover so the two plastic tabs on one end of the cover are hooked into the opening toward the top of the tester 10 Press on the bottom end of the plastic...

Страница 50: ...Battery Charging and Replacement Page 8 6 Mastertech 3100 Operator s Manual ...

Страница 51: ...ata without a serial parallel converter This is important since most printers connected to small computer systems are parallel printers Specifications for the RS232 link are provided on the following page You should not need to use this information unless you are trying to connect the tester to a device other than those discussed in this manual If you are trying to connect an RS232 compatible devi...

Страница 52: ...hake signals by the tester RTS 5 TRANSMIT OUTPUT RECEIVE 6 RECEIVE INPUT TRANSMIT 7 RTS a CTS 8 SIGNAL GROUND SIGNAL GROUND 9 DSR INPUT DTR 10 NOT USED SIGNAL LEVELS DATA FORMAT BAUD RATES LOGIC 1 12 V 1 START BIT LOGIC 0 12 V 8 DATA BITS 1 START BIT 8 DATA BITS 1 STOP BIT NO PARITY SOFTWARE SELECTABLE 1200 bps 2400 bps 4800 bps 9600 bps 19200 bps 38400 bps 57600 bps 115200 bps TABLE A 1 RS232 Int...

Страница 53: ...e most likely cause for the condition is given as well as other possible causes and recommendations on how to isolate or eliminate the problem If your problem is not isolated or eliminated by using these instructions see WARRANTY AND REPAIR INFORMATION in the Introduction section BLANK SCREEN WHEN TESTER IS TURNED ON Most Likely Cause Display contrast misadjusted NiCad batteries dead and tester is...

Страница 54: ...making sure the connector is properly connected PRINTER CANNOT PRINT BY PRESSING S AND P S KEYS Most Likely Cause Printer is turned off Printer is out of paper Printer cable connections are loose or cable is open Printer is malfunctioning Printer setup is incorrect Incompatible printer Recommendations Turn the printer power on Verify that the printer baud rate is the same as the baud rate of the t...

Страница 55: ...TERTECH FAILS TO POWER UP Most Likely Cause DC power cable not making good contact Vehicle cigarette lighter fuse is blown Fuse in DC power cable cigarette lighter plug is blown Recommendations Disconnect and reconnect the DC power cord Verify that the power cord is connected properly Replace vehicle cigarette lighter fuse Replace fuse in DC power cable cigarette lighter plug as follows a Disconne...

Страница 56: ...If You Are Having a Problem Page B 4 Mastertech 3100 Operator s Manual FIGURE B 1 DC Power Cable Plug DC Power Cable Fuse Power Plug Terminal Power Plug Cover ...

Страница 57: ...ion Basic diagnostic data parameters are displayed on the tester DC Direct Current DCE Data Communication Equipment A term used to describe a device connected to an RS232 link DLC Data Link Connector DTE Data Terminal Equipment A term used to describe a device connected to an RS232 link DVM Digital Volt Meter DVOM Digital Volt Ohm Meter ECM Engine Control Module ECU Electronic Control Unit EEPROM ...

Страница 58: ...connector RS232 Same as RS232C RS232C The most standard serial communication interface used in the computer industry SCI Serial Communication Interface SCREEN PRINT An operating mode of the RS232 where the tester display is sent to a printer SNAPSHOT A mode of operation In the SNAPSHOT mode basic diagnostic data parameters are stored in the tester during a road test and can be examined printed or ...

Страница 59: ...7 vehicle 5 4 battery adapter cable 5 4 8 2 blank screen display B 1 C cables 3 1 5 2 cartridge description 3 3 installing 5 1 cautions 1 2 D diagnostic test leads cautions 1 2 connecting 6 2 description 3 10 usage 2 1 display contrast 3 6 Tech 1 1 1 E enhanced mode display 1 2 error message display B 2 H help screens 5 6 I instrumentation port 3 9 6 2 K keypad 1 2 3 4 L light emitting diodes LEDs...

Страница 60: ... self tests B 1 N notes 1 2 P power source 3 7 power up failure B 3 precautions 1 2 printer 3 12 printer failure B 2 program card installing 3 3 5 1 R RS232 communication A 1 RS232 port 3 11 6 1 S self tests failure B 3 perform B 1 T tester See Mastertech troubleshooting B 1 W warnings 1 2 warranty 1 3 ...

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