Conversion Example - 3onedata CAN485 User Manual

Serial frame
Data 1
Data 2
Data 3
Frame ID 1
Data 4
Data 5
Data 6
Data 7

6.2.3 Conversion example

1. Serial frames conversion CAN-Bus message
Assume that CAN-Bus identifies the starting address in the serial frame is 2, the length is 3 (extended frame case),
serial frames and converted into CAN-Bus message results are shown as follows. Among them, two CAN-Bus
packet switching with the same ID.
Serial frame
Address 0 Data 1
Address 1 Data 2
Data 3
Address 2
(CAN ID1)
Data 4
Address 3
(CAN ID2)
Data 5
Address 4
(CAN ID3)
Address 5 Data 6
Address 6 Data 7
Address 7 Data 8
Address 8 Data 9
Address 9 Data 10
Address 10 Data 11
Address 11 Data 12
Address 12 Data 13
Address 13 Data 14
Address 14 Data 15
CAN message (standard frame)
Frame information Frame information
Frame ID
Data Field
Frame information
Frame ID 1
Frame ID 2
Frame ID 3
Frame ID 4
Data Field
19
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Frame ID 1
Frame ID 2
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
CAN message 1 CAN message 2
18
00
Data 3 (CAN ID1) Data 3 (CAN ID1)
Data 4 (CAN ID2) Data 4 (CAN ID2)
Data 5 (CAN ID3) Data 5 (CAN ID3)
Data 1
Data 2
Data 6
Data 7
Data 8
Data 9
Data 10
Data 11
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15
00
Data 12
Data 13
Data 14
Data 15