DrewTech: CarDAQ2534 User Manual
Contents
1. and ISO 14230 Front Panel Indicators On the front of the CarDAQ2534 there are two translucent windows Vehicle Ethernet EE NO IRZ Drew Technologies Inc 2534 The colored LEDs in these windows indicate CarDAQ s status On a properly connected CarDAQ look for the power 1 Hz flashing green and Ethernet link solid green lights See the following table for a definition of all other indications Color Description Vehicle Green Host PC Interface Activity Yellow Vehicle Bus Activity Red Error Warning Green Power 1 second flash Ethernet Green Link Connected Yellow LAN Activity Red Network Error Warning Measuring Temperatures and Voltages CarDAQ2534 provides 6 general purpose analog inputs voltage range 0 27V sampling rate 2 kHz resolution 12 bit These can be used directly or with DrewTech s TempDAQ product ordered separately TempDAQ is a temperature compensated amplifier that reads voltage from K type thermocouples and scales it to 0 27V so CarDAQ can use the full dynamic range of its A D 8 subsystem It also provides BNC connectors to pass 0 27v range signals directly into CarDAQ without any re scaling It measures a temperature range 200 C to 1250 C with 2 C accuracy and better than 1 C of resolution Please contact DrewTech if you are interested in a CarDAQ2534 factory upgrade 0 1 tolerance resistors which improves accuracy to better than 1 C Existing2. considered an un intentional radiator We state that our equipment is exempt from the certification requirements of Part 15 We cite 47 CFR Part 15 Subpart B section 15 103 Exempted Devices paragraph c A digital device used exclusively as industrial commercial or medical test equipment We do not test our equipment to meet any requirements of 47 CFR Part 15 Point 2 The controlling law is Title 47 Code of Federal Regulations Part 18 Industrial Scientific and Medical Equipment We cite 47 CFR Part 18 Subpart A section 18 115 Elimination and investigation of harmful interference The user assumes responsibility for eliminating the source of harmful interference European Union The governing body is the European Community and its various bodies Point 1 The governing Directive is EMC Directive 89 336 EEC including all amendments We do not test our equipment to meet this directive See Point 3 below Point 2 The governing Directive is Low Voltage Directive 73 23 EEC including all amendments We do not test our equipment to meet this directive See Point 3 below Point 3 Our equipment can only be sold and exported to EU customers under very narrow terms Our equipment has no intrinsic function it requires other equipment with which to work Our equipment is considered a component of a larger equipment item or system The customer is responsible for integrating our equipment
3. into their equipment or system The customer is responsible for all subsequent testing and certification of the resulting equipment or system All questions should be addressed to Engineering Dept Drew Technologies Inc 20
4. AQ provides two host interfaces serial and Ethernet Although both interfaces are optically isolated from vehicle power surges we strongly recommend Ethernet It is approximately 100x faster than serial and is much easier to configure Powering CarDAQ Your PC cannot power CarDAQ2534 over its RS 232 or Ethernet ports There are three options for powering the CarDAQ2534 1 Attached to a vehicle The vehicle supplies power on pin 16 of its OBD II SAE J1962 connector CarDAQ is powered whenever it is connected to a vehicle 2 Signal breakout box Using the DrewTech J1962 to banana jack adapter apply between 6 to 15 VDC at the Vbatt pin 16 terminal Use ChGnd pin 4 for reference 3 Custom harness Using the CarDAQ connector kit available upon request build a custom wiring harness Refer to pin diagrams in the CarDAQ2534 manual for details Connecting CarDAQ to a PC There are several options for connecting CarDAQ to your PC Standalone Laptop Ethernet Connection Plug the CarDAQ s Ethernet cable directly into your Ethernet port The included cable is a crossover type intended to connect directly to a computer LAN Ethernet Connection If you want to connect CarDAQ to a LAN you must un crossover the Ethernet wires DrewTech sells a kit P N CD2534 ENET Wall with the adapter necessary for connecting to an Ethernet hub switch or wall plate Serial Connection Plug the CarDAQ s serial cable into your P
5. C Make sure all programs are disabled which might interfere with the serial port including Microsoft ActiveSync Palm Desktop etc Note Although the CarDAQ DLL v6 00 supports COM1 COM16 it will only auto detect on COM1 COM4 Many users have reported success with USB to Serial interfaces This may be an option if you are unable to use Ethernet and your PC has no serial port Software setup Although you have received our latest software on CD we periodically release updates to increase performance and correct problems Please check the download section of our website for details Installing CarDAQ s Driver Software Run J2534install exe on the installation CD This installs the CarDAQ driver on your PC and registers the CarDAQ as an available vehicle network interface Then run cardaq_setup exe on your installation CD and select the proper CarDAQ discovery algorithm Automatic Search Ethernet and COM1 COM4 for one or more CarDAQs Present a selection dialog box if more than one has been detected Default Name Search Ethernet and COM1 COM4 but only for a single CarDAQ with this host name Fixed IP Search only this IP address for a single CarDAQ COM Search only this COM port for a single CarDAQ This setting permits COM1 COM16 Since searching the serial ports is relatively slow the fixed IP and COM settings are ideal for algorithms like J1699 which repeatedly call PassThruConnect These settings eliminat
6. Contents INTRODUCTION ccssssssstssssseenstesnsnesnsneensneensneenes Who uses the J2534 API How to use a PassThru device GETTING STARTED WITH CARDAQ2534 Hardware Setup Software setup USING CARDAQ2534 nssnsnnnnonnnnonnnnonnnnonnnnennnnennan Front Panel Indicators Measuring Temperatures and Voltages EXISTING SOFTWARE csssssssssstssnsseensneensneensneenes OEM Diagnostic Software OEM Reflashing Software DrewTech Examples Sourceforge SAE J1699 Implementation DEVELOPING CUSTOM APPLICATIONS Using C C under Windows Using Linux and Other Environments Using LabVIEW TROUBLESHOOTING AND SUPPORT SPECIFICATIONS AND CONNECTORBG Isolated RS 232 Connector Analog Connector Vehicle Connector Ethernet Connector NOTICES ABOUT TESTING AND CERTIFICATION 0000 18 Statements United States European Union Introduction In 1994 the EPA mandated that all light duty vehicles have a standard connector for On Board Diagnostics OBD The SAE Society of Automotive Engineers created the OBD standard also known as J1962 This standard specifies the size position and design of the OBD connector Anyone can plug a device called a scan tool into the connector to monitor the car s emissions and review any recent emission related faults A computer in the car called the Engine Control Unit ECU controls the fuel injection spark plugs and indirectly the car s emissions The software r
7. Software Your CarDAQ2534 is compatible with any J2534 compliant application Once the CarDAQ driver is installed and the hardware is properly connected it should appear in the application s list of available vehicle network interfaces OEM Diagnostic Software CarDAQ works with any J2534 compliant diagnostic software For any OEM proprietary applications please contact your internal helpdesk for support OEM Reflashing Software The EPA requires vehicle manufacturers to release J2534 compliant software to update firmware The application must run on Windows and use the J2534 API to talk to the car For more information see the following websites OEM Site Audi http erwin audi de erWinAudi BMW http www bmwtechinfo com Chrysler http www techauthority com Ford http www motorcraft com General http www gmtechinfo com Motors Honda http www serviceexpress honda com Jaguar http www jaguartechinfo com Mercedes http www startekinfo com Benz Mitsubishi http www mitsubishitechinfo com Porsche http techinfo porsche com Saab http www saabtechinfo com Toyota http techinfo toyota com Volkswagen http www erwin volkswagen de erWinVW 10 DrewTech Examples The CarDAQ tester application can be used to configure test and update the firmware of CarDAQ2534 It allows the user to connect to a vehicle network monitor traffic and send messages The bridge application can be u
8. ated from the vehicle by over 1500V Pin Function Direction Ground 2 CTS input In 3 RX input In 4 RTS output Out 5 TX output Out 6 No Connect Analog Connector Mating connector EN3C8F DigiKey P N SC1164 ND 4 5 3 Can 6 OIO7 rig bas The 12 bit analog inputs are setup for an input range of 0 to 27 5VDC and electrically protected against reverse voltage and over voltage conditions Pin Function Direction Channel 1 In 2 Channel 2 In 3 Channel 3 In 4 Channel 4 In 5 Channel 5 In 6 Channel 6 In 7 Battery Voltage Out 8 Ground Vehicle Connector Mating connector EN3C8F DigiKey P N SC1164 ND 4 3 CJ Q y a hei Note Drawing current in excess of 200ma from the FEPS line will damage the CarDAQ 2534 hardware Avoid grounding the FEPS line Pin Function Direction 1 Programming Out Voltage 5 20 VDC 2 CAN CAN C only In Out 3 CAN CAN C only In Out 4 J1850PWM In Out J1850VPW 5 J1850PWM In Out 6 ISO 9141 K line In Out 7 Ground 8 Battery Voltage In 200mA 12VDC Ethernet Connector Mating connector EN3C4F Digikey P N SC1158 ND w 2 O19 4 O O Pin Function Direction TXD 2 TXD 3 RXD 4 RXD Notices about Testing and Certification Drew Technologies equipment is designed and built using best commercial practices None of our equipment is subjected to any kind of compliance testing nor is the equip
9. car manufacturer recommends new ECU firmware It will cost a few dollars but it will help your engine run cleaner By purchasing the upgrade consumers will be helping to cleanup the environment How to use a PassThru device A PassThru device plugs into a car s OBD connector on one side and a computer on the other side These devices are not made by car manufacturers but by any company that sees an opportunity Under the hood the device must speak a myriad of different vehicle protocols ISO9141 J1850VPW PWM CAN etc used by the different manufacturers Each protocol has different voltage and timing requirements so this is no trivial task Fortunately each device comes with a software driver that implements the J2534 API Since the driver invisibly handles communication to the device application software writers don t have to worry about the connection details or low level car protocols Getting Started with CarDAQ2534 Thank you for choosing CarDAQ2534 This multi protocol PassThru network adapter lets your PC communicate and perform ECU reprogramming on any modern vehicle diagnostic bus It also provides 6 general purpose analog inputs for measuring temperature or voltage Your package includes the CarDAQ2534 hardware a serial cable an Ethernet cable and a CD including drivers sample programs and source code The J1962 vehicle interface cable is not included and can be ordered separately Hardware Setup CarD
10. e the slow search of COM1 COM4 by checking a single location Setting CarDAQ s Network IP Address Ethernet Only We strongly recommend CarDAQ s auto configure mode since it is relatively easy to forget a static IP address setting Run cardaq_setup exe on your installation CD and make any changes on the IP Configuration tab Auto configure mode Default On most LANs CarDAQ can obtain its IP address subnet mask and gateway automatically using DHCP Ask your network administrator if this service is available on your network Note A race condition exists for multiple CarDAQs using DHCP on a LAN When multiple units are powered on simultaneously Unit B might steal the DHCP address response intended for Unit A To avoid this rare LAN problem power on CarDAQs sequentially When disconnected from the LAN CarDAQ will start an internal mini DHCP server to auto configure the laptop s 6 network settings The red error warning LED will flash every three seconds to indicate that it is in standalone mode To enable autoconfiguration set CarDAQ s IP address to 0 0 0 0 with the tester application Static IP mode If your network does not support DHCP or if you must use a static IP address specify the host name IP address subnet mask and gateway using the IP Configuration tab Using CarDAQ2534 CarDAQ supports all modern vehicle diagnostic protocols including J1 850VPW J1850PWM CAN ISO 15765 ISO 9141
11. ment certified to meet any particular requirements with regards to EMI EMC ESD or others This applies to all of our products unless specified otherwise Additional details are provided here Statements Our equipment is marketed only to the automotive and related industries Users of our equipment are intended to be qualified engineers and technicians Our equipment is intended for use in an_ industrial environment Our equipment is intended to be test equipment Our equipment requires integration with other test equipment to function At a minimum a computer and a unit under test are required The unit under test may be a module several modules an entire motor vehicle or similar test set up Our equipment is not intended for use by consumers or in a consumer environment We do not sell to individual consumers United States The governing body is the FCC Federal Communications Commission Point 1 The controlling law is Title 47 Code of Federal Regulations Part 15 Radio Frequency Devices We state that our equipment is classified as a Class A Digital Device We cite 47 CFR Part 15 Subpart A section 15 3 Definitions paragraph h Class A digital device A digital device that is marketed for use in a commercial industrial or business environment exclusive of a device which is marketed for use by the general public or is intended to be used in the home Additionally our equipment is
12. sed to convert messages between the various protocols or transmit the analog inputs across a vehicle network Sourceforge SAE J1699 Implementation This project is an Open Source GPL implementation of the SAE J1699 test specification SAE J1699 is an SAE standard for testing cars for compliance with CARB EPA OBD Il mandates built upon the J2534 Pass Thru device API Developing Custom Applications Unlike conventional scantools or code readers CarDAQ2534 is a fully programmable device With your own custom software you can perform initialization sequences read and write messages apply filters send periodic messages and assert ECU reprogramming signals CarDAQ is fully compliant with the SAE J2534 API This standard set of functions allows a software application to discover and use any vendor s PassThru hardware as the vehicle network interface Using C C under Windows User applications are expected to parse the Windows registry to discover which hardware devices are installed and which protocols are supported by each device Please refer to the Programmer s Reference manual for a list and description of available functions in the J2534 API and refer to the installation CD for source code of example programs Using Linux and Other Environments Platforms without a registry Linux Labview RT etc can still use PassThru functions Statically link to the CarDAQ DLL or Linux shared library there is no standard me
13. thod for automatic J2534 DLL discovery on non Windows platforms Using LabVIEW DrewTech offers a complete set of LabVIEW VIs with native datatypes and context sensitive help A Labview RT driver is available separately upon request Tr leshooting and Su ort the serial cable to your PC and use the tester application to oubleshoo g pp reset the IP address configuration over RS 232 serial DrewTech is available 9 00am to 5 30pm eastern standard time Monday through Friday to answer any questions Please email support drewtech com if you need assistance Since it is relatively easy to forget a fixed IP address setting we recommend using DHCP whenever possible If you cannot communicate with CarDAQ2534 Ask the following questions Does CarDAQ have power and is the green power LED flashing once per second Is the battery or power supply voltage between 6VDC and 15VDC with correct polarity Could any firewall or PDA software be interfering with the Ethernet or serial ports Are you attempting to connect to a LAN without the wall kit Is the green Ethernet link LED on If these issues have been addressed verified and you are still having trouble please email support drewtech com Updating CarDAQ s Drivers and Firmware Your CarDAQ contains field upgradeable firmware Updates are regularly released which include new features improve performance and correct problems Please visit DrewTech s download page at ht
14. tp www drewtech com downloads Apply power to CarDAQ Run J2534install exe similar to a new installation to install the new J2534 DLL on the PC Then run cardaq_setup exe to reprogram CarDAQ with the new firmware Resetting a CarDAQ Configured for an Unknown Fixed IP Address If you have previously configured CarDAQ for fixed IP mode but do not remember what address was configured connect 13 14 Specifications and Connectors CarDAQ 2534 Rev J Specifications Name Value Input Voltage Range 6VDC to 15VDC Supply Current 320mA 6VDC 200mA 12VDC 170mA 15VDC Operating 40C to 80C ambient Temperature 65C to 100C ambient 95 RH 40C for 24 hours waterproof option available Storage Humidity 95 RH 65C for 24 hours Vibration 4g at 55Hz for 10 minutes Shock 30g 1 2 sine 11 msec duration Storage Temperature Operating Humidity CarDAQ utilizes Switchcraft s EN3 weather tight series for all external connections Pin 1 is indicated by a small bump inside the male connector at the 11 o clock position The remaining pins are in a counter clockwise pattern with the last pin in the center for the six and eight pin connectors All images in this section were obtained from Switchcraft s product data sheet The connector pin outs also found on the bottom label of CarDAQ follow Isolated RS 232 Connector Mating connector EN3C6F DigiKey P N SC1162 ND The RS 232 port is electrically isol
15. unning on the ECU is called firmware because it s more difficult to change than normal software One ECU can be used in many different car models with only slight changes to the ECU firmware In fact one car model can comply with emission laws in different countries just by modifying the firmware Upgraded firmware can fix bugs and tighten emissions output long after a car leaves the factory The EPA quickly realized that a car s emissions are only as good as the firmware on the ECU Until now only auto dealers were able to upgrade the ECU firmware with tools that sometimes cost as much as the car itself Starting with model year 2004 the EPA wants anyone including auto repair shops and car enthusiasts to be able to upgrade their car for a reasonable cost To accomplish this they asked SAE to create the J2534 API Who uses the J2534 API The EPA requires car manufacturers to release software that updates the firmware on their cars The application must run on Windows and use the J2534 API to talk to the car Anyone can buy this software even individual car enthusiasts The software must be sold for a reasonable price The combination of reasonable price ECU upgrade software and competition among J2534 device manufacturers will create new markets We predict that car repair shops and some car enthusiasts will find it profitable to charge for ECU upgrades Imagine pulling into Midas or Jiffy Lube and learning Your
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