3onedata CAN485 User Manual page 15

The position of the CAN-Bus frame ID in the serial frame:
The function only effective in the transparent tape identification parameter conversion mode. Convert the CAN-Bus
message in the serial data, start byte frame ID CAN-Bus message in the serial frame offset address ID and frame
length (see 6.2 transparent with mark conversion).
When the frame length of ID in the standard frame can be filled with 1 to 2 bytes, respectively corresponding to the CAN-Bus
message ID1, ID2. When the extended frame can be filled with 1 to 4 bytes of ID1, ID2, ID3 and ID4. The standard frame when ID
is 11, expressed as ID1.2 ~ ID1.0 and ID2.7 ~ ID2.0 and ID2.7 ~ ID2.3; ID2.7～ID2.3 keep unused (filled with 0). The
corresponding relation table as follows:
Frame ID format
The actual value of ID frame
Extended frame ID 29, the ID1 of the high 3 bits reserved unused (with 0 filling). The corresponding relation table as follows:
Frame ID format
The actual value of ID frame Retain（000） ID.28～ID.24 ID.23～ID.16 ID.15～ID.08 ID.07～ID.00
The time interval between the serial frames as a character of the time:
Only in the transparent identification conversion mode. When the user to send the serial converter frame, the time
interval between two serial frames, the time interval to send a single character as the unit of time. Here you can set
the 2~10 character of the optional time.
The serial number of characters frame interval can be set only with the identity transformation mode. The actual time interval must
be set and frame the user consistent, otherwise it may lead to the incomplete conversion frame. The time significance of
transferring a single character is: under the corresponding baud rate, serial ports to send a character (10 bit) need time by 10
divided by the corresponding baud rate.
For example: at 9600 baud rate, serial frame interval number of characters for 4, transmit a single character (10 bit per character) is
(10/9600) s and the actual time interval between the serial frames are obtained: (10/9600) X4 = 4.17 (ms), namely the time interval
between two serial frames at least 4.17ms.
Contains the CAN-Bus frame information:
This parameter is used only in the data conversion mode, when selected, when the converter operates will frame
serial frame first byte will add CAN-Bus message. If not selected then the converter does not convert CAN-Bus
frame information.
Contains the CAN-Bus frame ID:
This parameter is used only in the transparent conversion mode, when selected, when the converter operates will
add CAN-Bus frame ID information between the serial frame data and frame information (if allowed frame
information conversion). Frame ID of CAN-Bus is not selected when no conversion.
Send frame:
This parameter only in the data conversion mode can be converted into CAN-Bus, said the message in the serial
data frame, the identification of domain CAN-Bus message (frame ID) value (16 hexadecimal data).
ID1.7～ID1.3
Retain（00000）
ID1.7～ID1.5 ID1.4～ID1.0 ID2.7～ID2.0 ID3.7～ID3.0 ID4.7～ID4.0
12
Shenzhen 3onedata Technology Co., Ltd
ID1.2～ID1.0 ID2.7～ID2.0
ID.10～ID.08 ID.07～ID.00
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