Ebyte ECAN-101 Manual page 18

Chengdu Ebyte Electronic Technology Co., Ltd.
The ECAN-101 device can convert valid data received from the CAN bus intact to the RS485 serial bus output. Similarly, the device can also
convert the valid data received from the RS485 serial bus to the CAN bus output intact. Realize transparent conversion between RS485 and CAN.
1. Serial frame to CAN message
All data of the serial frame is sequentially filled into the data domain of the CAN message frame. Once the module detects data on the serial bus,
it immediately receives and converts it. The converted CAN message frame information (frame type part) and frame ID come from the user's prior
configuration, and the frame type and frame ID remain unchanged during the conversion process.
0
1
2
3
4
5
6
7
Conversion example:
Convert serial frames into CAN messages (transparently).
Assuming that the configuration CAN frame information is' standard frame ', frame ID is' 0x0213', and serial frame data is from 0x01 to 0x0C,
the conversion format is as follows. The frame ID of the CAN message is 0x0213 (user configured), and the frame category is standard frame (user
configured). The data part in the serial frame will be converted into the CAN message without any modification.
Serial
frame
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
Convert
CAN
0x0B
0x0C
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Serial
frame
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Data 8
Convert serial frames into CAN messages (transparent)
Frame
information
Frame ID
Data
Domain
CAN message
Frame User
information Configuratio
n
Frame ID
User
Configuratio
n
User
Configuratio
n
Data 1
Data 2
Data 3
Data Domain
Data 4
Data 5
Data 6
Data 7
Data 8
CAN CAN
message 1 message 2
0x08 0x04
0x02 0x02
0x13 0x13
0x01 0x09
0x02 0x0A
0x03 0x0B
0x04 0x0C
0x05
0x06
0x07
0x08
ECAN-101 User Manual
serial frames into
messages
(transparent)