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UM-0086-A2

CANgate User’s Manual

Page 27

Example

STATS
HOST: Tx:218408 Rx:1255 bytes Dropped Tx:0 Rx:0 Errors:0

GPS: Tx:0 Rx:0 bytes Dropped Tx:0 Rx:0 Errors:0

CAN1: Tx:44 Rx:272042 frames Dropped Tx:0 Rx:9
Errors Warning:0 Bus:0 ArbLost:5

  CAN2: Tx:0 Rx:273096 frames Dropped Tx:0 Rx:220
    Errors Warning:0 Bus:0 ArbLost:0
  Sys: RQST dropped:0 Proc ovfl:0 Except: 0/0

DIAG – Set Diagnostic Mode

DIAG

mode

This command enables certain diagnostic functions. Each bit of the

mode

parameter enables a particular function, as

follows:



if bit 0 = 1 then all CAN messages sent by CANgate will be displayed, eg:

CAN2 TX> 18EC00FF 132C0007 FFEBFE00

which shows that a message has been sent on CAN2 with identifier 0x18EC00FF and the indicated data value.



if bit 1 = 1 then all CAN messages received by CANgate will be displayed, eg:

CAN2 RX< 18EBFF00 07A50403 12FFFFFF

Note that only those messages which match the current filter criteria (as specified by the defined memory slots) will be
received and displayed. So if there are no memory slots defined then nothing will be displayed.

To switch on display of both transmitted and received messages you would therefore use:

DIAG 3

and to switch off all diagnostic displays use:

DIAG 0

This command can be useful when troubleshooting ISO-14230 and J1939 multi-packet request sequences.

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Содержание CANgate

Страница 1: ...Intelligent Data Logging Products CANgate User s Manual A guide to programming wiring communications www datataker com...

Страница 2: ...EPT AS EXPRESSLY PROVIDED IN THIS WARRANTY STATEMENT THERMO FISHER DISCLAIMS ALL OTHER WARRANTIES WHETHER EXPRESS OR IMPLIED ORAL OR WRITTEN WITH RESPECT TO THE INSTRUMENTS INCLUDING WITHOUT LIMITATIO...

Страница 3: ...Summary 15 Command Reference 16 Commands and Parameters 16 Slot Definition Commands 16 RECV Receive Standard ID CAN Messages 16 RECVE Receive Extended ID CAN Messages 17 SEND Transmit Standard ID CAN...

Страница 4: ...minal Control 30 KWP2000 OBD II ISO 14230 Requests 30 Reading Fault Codes 31 OBD II 31 J1939 31 Using CANgate with a DT8x Data Logger 32 Escaping Control Characters 32 Serial Sensor Direct Mode 33 Usi...

Страница 5: ...N ports are hot pluggable and all CANgate settings are saved in non volatile flash memory so that the unit will resume its configured tasks following a power interruption Typical CANgate application A...

Страница 6: ...Unit GPS Global Positioning System ID Identifier ISO International Standards Organisation NMEA National Marine Electronics Association OBD On Board Diagnostics PGN Parameter Group Number PID Parameter...

Страница 7: ...ows Pin Signal Function 1 5V out 5Vdc output 200mA max 2 GND Ground 3 CAN1 HI CAN port 1 high 4 GPS RXD GPS port Receive Data input 5 CAN1 LO CAN port 1 low 6 CAN2 HI CAN port 2 high 7 CAN2 LO CAN por...

Страница 8: ...agram Note By default the CANgate host port operates at a high baud rate 57600 baud At this speed the maximum cable length for the host computer or data logger connection is approximately 5 metres ass...

Страница 9: ...ysical layer as defined in ISO 11898 2 SAE J2284 This is by far the most widely used physical layer The important characteristics of this standard are two wire 5V differential signalling bit rate 10kb...

Страница 10: ...then an external termination resistor may be required Direct connection to a single ECU In this case a short 1m cable is used so the two 120 resistors are combined into one 60 resistor If a long cabl...

Страница 11: ...ff off off x x x x off 38400 off off ON x x x x off 19200 off ON off x x x x off 9600 off ON ON x x x x off Host port baud rate 115200 ON off off x x x x off hardware x x x off x x x off Host port flo...

Страница 12: ...sive and active For RECV RECVE RECVJ and GPS slots CANgate passively receives all matching messages then returns the last known data value either at a fixed rate or when requested by the host data log...

Страница 13: ...ing Commands CANgate memory slots and other settings are configured by sending textual commands via the host port The available commands are detailed in the Command Reference P16 If CANgate is directl...

Страница 14: ...cters after the apostrophe up until the end of the line will be ignored Run Mode and Program Mode CANgate has two operational modes Run Mode is the normal mode of operation Following power up CANgate...

Страница 15: ...ddr sampleRate FORMAT options slot RECVJ CANport PGN startByte bit endByte bit ECUaddr priority sampleRate FORMAT options slot RQSTJ CANport PGN startByte bit endByte bit ECUaddr priority sampleRate F...

Страница 16: ...ot specified then 8 is assumed If bit is not specified then 1 is assumed sampleRate is the rate at which to return values to the host integer in ms must be multiple of 100ms May also be ALL in which c...

Страница 17: ...ed connect the two CAN ports together and set up the RECV slot on the other port Examples SEND 2 0x302 1122FF07 RP This will immediately send a CAN message on CAN port 2 The message s identifier will...

Страница 18: ...negative response and indicates that an invalid request was made All messages are transmitted using the ISO 15765 network layer protocol This protocol fragments long messages into multiple CAN frames...

Страница 19: ...slot That is it listens for CAN messages with a particular extended identifier extracts the required data field then returns it to the host when polled or at regular intervals or after every message...

Страница 20: ...ter D or M or N default N If N normal is specified then the indicated field is returned as is Otherwise the indicated field and the next field are interpreted as a latitude or longitude value with for...

Страница 21: ...specifies the data type integer floating point etc and possibly some other formatting details If no conversion specifier is present which is the default the data value will be output in raw hexadecim...

Страница 22: ...that the last matching CAN message had the data 01234567AABBCCDD RECV 1 0x100 1 2 returns 0123 CR LF RECV 1 0x100 1 2 FORMAT 100 returns 29100 00 CR LF 0123 hex scaled by 100 RECV 1 0x100 1 2 FORMAT r...

Страница 23: ...of responses may not match the order of the memory slots Examples RP 1 150 Poll all defined memory slots RQSTJ 2 65226 3 6 FORMAT f n RP SEND 1 0x142 112233 RP The RP command is often appended when d...

Страница 24: ...time all incoming CAN messages on the specified port are received For each distinct CAN identifier that was received the following information is displayed identifier type standard 11 bit STD or exte...

Страница 25: ...cified both CAN ports are measured This command measures the traffic load on one or both CAN ports and reports it as a percentage of the theoretical maximum for the bit rate in use It should be noted...

Страница 26: ...es 2 8 end Flags c0820000 Sample 0 ms 1 RECV CAN1 RxID 0x0001 RxBytes 1 8 1 1 Flags c0020000 Sample 0 ms 2 RECV CAN1 RxID 0x0002 RxBytes 1 8 1 1 Flags c0020000 Sample 0 ms 3 RECV CAN1 RxID 0x0003 RxBy...

Страница 27: ...s sent by CANgate will be displayed eg CAN2 TX 18EC00FF 132C0007 FFEBFE00 which shows that a message has been sent on CAN2 with identifier 0x18EC00FF and the indicated data value if bit 1 1 then all C...

Страница 28: ...adcast PGNs J1939 based systems typically have a multitude of SPNs Suspect Parameter Numbers each representing an individual measured quantity or status A group of related SPNs will be broadcast over...

Страница 29: ...d causes the memory slot to be immediately polled which will cause the request to be immediately sent Note that it doesn t make sense to poll a RECVJ slot immediately after defining it because at that...

Страница 30: ...at any one time Terminal Control The following example is intended to be used with an ANSI VT100 terminal or emulator Two data values are extracted from received CAN messages with ID 0x212 and one fro...

Страница 31: ...eg RQST 1 0101 RP 81066060 The most significant 8 bits 81 of the 32 bit result contains the most pertinent information In this case b31 is set which indicates that the Malfunction Indicator Light MIL...

Страница 32: ...ed memory slots a number of 1SERIAL commands within one or more logger schedules typically one 1SERIAL command per parameter of interest These commands will normally send a poll command RP memslot the...

Страница 33: ...logger connection from now on will be ignored by the logger and will instead be forwarded to the serial sensor port ie to CANgate Furthermore all normal text output from the logger eg real time data...

Страница 34: ...also flash during the snoop If the CAN LED gives a brief flash at two second intervals then this may indicate that bus errors are occurring causing CANgate to disconnect from the bus then retry every...

Страница 35: ...pear in the received data stream which will probably disrupt the parsing of the returned data With the logger in pass through mode verify that CANgate is configured for normal operation with no extran...

Страница 36: ...message returned if in verbose mode CAN1 BUS ERROR DISCONNECTED The most common cause for this is an incorrectly configured bit rate although it may also be caused by noise or an intermittent electri...

Страница 37: ...version 6 Type RESET to clear any existing CANgate configuration 7 Type VXVX All CANgate LEDs will turn on to indicate that the bootloader is active Some random characters may be returned as the bootl...

Страница 38: ...1 stop bit Flow Control Not supported Protocols NMEA 0183 Host Data Logger Computer Interface 1 RS232 port Port Speeds 9600 19200 38400 57600 default 115200 baud Serial Parameters No parity 8 data bi...

Страница 39: ...r Consumption Idle 0 75W 50mA 15V Maximum CANgate only 2 25W 150mA 15V Maximum CANgate external device drawing 200mA from 5V output 3 75W 250mA 15V Physical Construction Anodised aluminium plastic sur...

Страница 40: ...ly to a mode 0x01 request The second byte is the PID and the third and subsequent bytes are the actual data value PID hex Data Size bytes Description Scale Offset Units 00 4 PIDs supported b31 0 PIDs...

Страница 41: ...e travelled since DTCs cleared 1 0 km 32 2 Evaporative system vapour pressure 0 25 8192 Pa 33 1 Barometric pressure 1 0 kPa abs bytes 1 2 Sensor 1 WR lambda 1 Equivalence ratio 0 0000305 0 34 4 bytes...

Страница 42: ...rain B body C chassis or U network For example P0118 Engine Coolant Temperature Circuit High Input P0203 Injector Circuit Malfunction Cylinder 3 U0003 High Speed CAN Communication Bus Open When a DTC...

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