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Vhandy Technology

GCAN-208 user manual

Appendix : CAN2.0 protocol frame format

CAN2.0A standard frame

CAN standard frame information is 11 bytes, including two parts: information and
data. The first 3 bytes are the information part.

Byte 1 is frame information. The 7th bit (FF) represents the frame format, in the
standard frame, FF=0; the 6th bit (RTR) represents the frame type, RTR=0 represents
the data frame, RTR=1 represents the remote frame; DLC represents the transmission
The actual data length in the data frame.

Bytes 2 and 3 are message identification codes, 11 bits are valid.

Bytes 4 to 11 are the actual data of the data frame, which is invalid in the remote
frame.

Содержание GCAN-208 Series

Страница 1: ...GCAN 208 Series CAN fiber optic repeater User Manual Document version 4 00 2020 11 21...

Страница 2: ...size 7 2 2 Equipment fixed 7 2 3 Interface definition and function 8 3 Equipment use 12 3 1 CAN bus configuration 12 3 2 Connect with optical fiber 16 3 3 Connect with CAN bus 17 3 4 CAN bus terminal...

Страница 3: ...n CAN data and optical signal in microseconds so as to ensure the real time communication so GCAN 208 can support any CAN bus communication protocol Such as CANopen SAE J1939 DeviceNet NMEA2000 etc Th...

Страница 4: ...0B frame formats in line with ISO DIS 11898 specifications The baud rate of CAN bus communication is between 5Kbps and 1Mbps which can be configured through the DIP switch The CAN bus interface adopts...

Страница 5: ...ough optical fiber lines at the same time Using several GCAN 208 2 between a pair of GCAN 208 1 can realize CAN bus cascade Several GCAN 208 2 F can form a fiber optic ring network and if a node is dr...

Страница 6: ...Vhandy Technology GCAN 208 user manual GCAN 208 1 typical application paired use GCAN 208 2 typical application hand in hand cascade GCAN 208 2 F typical application ring network...

Страница 7: ...ou can use wall mounted installation to fix the module inside the chassis or add DIN rail accessories to fix the module on the DIN rail GCAN 208 series module PE is connected with the shell If the cab...

Страница 8: ...GCAN 208 1 module The GCAN 208 1 module integrates one DC 9 24V power interface two standard CAN bus interfaces and one standard optical fiber interface single mode multi mode SC ST single core dual c...

Страница 9: ...208 1 power interface definition Pin from left to right Iterface Name Function 1 Optical fiber interface TX Optical fiber transmission interface 2 RX Optical fiber transmission interface Table 2 2 GC...

Страница 10: ...plug Pull out terminal blocks lead out The position and definition of the CAN bus interface and power interface are shown in Figure 2 5 Table 2 4 and Table 2 5 Figure 2 5 GCAN 208 2 CAN bus interface...

Страница 11: ...on and definition of the optical fiber interface of GCAN 208 2 module are shown in Figure 2 6 and Table 2 6 Figure 2 6 GCAN 208 2 fiber interface position Pin from left to right Iterface Name Function...

Страница 12: ...inside the device to adjust the corresponding CAN bus Baud rate The dial switch is shown in Figure 3 1 Figure 3 1 DIP switch The method of setting the baud rate of the DIP switch Do not power on the...

Страница 13: ...as follows 1 Turn all the baud rate dial switches of the GCAN 208 module to the digital side 2 Correctly connect the GCAN 208 module to the CAN bus ensure that the wiring is correct and the terminal r...

Страница 14: ...rrent device When you need to know the value of the baud rate used by the current device first open the device shell unscrew the black screws on both sides and then connect the USB port of the device...

Страница 15: ...CAN1 has been identified If the CAN light is always red and does not flash it means that the recognition is not successful At this time you need to check whether the wiring and terminal resistance are...

Страница 16: ...hich can be selected through the DIP switch between the two CAN bus wiring terminals 3 2 Connect with optical fiber The optical fiber interface type of GCAN 208 series module can choose SC and ST inte...

Страница 17: ...ucture of CAN bus network Please note CAN bus cable can use ordinary twisted pair and shielded twisted pair The theoretical maximum communication distance mainly depends on the bus baud rate The relat...

Страница 18: ...the device 1 Fiber indicator light to indicate optical fiber data transmission 2 or 1 CAN indicator light is used to indicate CAN bus data transmission The specific indication functions of these 5 in...

Страница 19: ...SYS not bright system error Chang Liang System initialization failed Flashing System initialization is normal Fiber Not bright or always bright Optical fiber to send data or no data transmission Flash...

Страница 20: ...ISO 11898 standard support CAN2 0A B CAN baud rate 5Kbit s 1Mbit s configured by dial switch Electrical isolation DC 2500V CAN terminal resistance Has been integrated through the dial switch to choos...

Страница 21: ...he single CAN channel of the GCAN 208 series module supports CAN bus data conversion at a maximum of 8000 fps The frame mentioned here refers to a data frame with 8 data in the standard frame If it is...

Страница 22: ...tement carefully Once used it is deemed to be an endorsement and acceptance of the entire content of this statement Please strictly abide by the manual product description and related laws regulations...

Страница 23: ...e 1 is frame information The 7th bit FF represents the frame format in the standard frame FF 0 the 6th bit RTR represents the frame type RTR 0 represents the data frame RTR 1 represents the remote fra...

Страница 24: ...ion The 7th bit FF indicates the frame format in the extended frame FF 1 the 6th bit RTR indicates the frame type RTR 0 indicates the data frame RTR 1 indicates the remote frame DLC indicates the tran...

Страница 25: ...anual Sales and Service Shenyang Vhandy Technology Co Ltd Address No 135 21 Changqing Street Hunnan Shenyang Liaoning China E mail sygckj gmail com Tel Whatsapp 86 13644001762 Skype live sygckj WeChat...

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