Transparent With The Identity Conversion; Frame Format - 3onedata CAN485 User Manual

2. CAN-Bus message to serial frame
The configuration for frame information conversion of the CAN-Bus message, but the ID frame is not converted.
Serial frame
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6.2 Transparent with the identity conversion

Transparent with the identity conversion is a special use that the user through the converter more convenient to set
up their own network, using a custom application protocol.
The way to address information in the serial frame automatically converted into CAN-Bus frame ID. Just in the
configuration told the converter address in the starting location and length of the serial frame converter in
converting extract the frame ID filled in the CAN-Bus message frames ID field. As the serial frame conversion
CAN-Bus message ID. When in the CAN-Bus message into serial frames that the CAN-Bus message ID will also
convert the corresponding position in the serial frame.
Note that in the conversion mode, the configuration software CAN-Bus parameters to send invalid identifier,
because the identifier transmitted (ID frame) filled by serial data in the frame.

6.2.1 Frame format

Serial bus frame: With the identity transformation, must obtain a complete serial data frame, converter with two
frames of the time interval between frames as division. And the interval can be set by the users. The maximum
length of the serial frame buffer length: 255 bytes.
The first data converter in serial bus idle state detected as the first character of the received frames. Transmission
character in the frame interval must be less than or equal to n-bit transmission characters (n value by the upper
computer configuration in advance) the time (to transmit a character is included with the character of digit divided
by the corresponding baud rate). If the converter in the receiver to a character after less than equal to n-bit
characters of the transmission time no character is received, converter that the frame transmission ended, the
character as the frame of the last character.
CAN message (standard frame)
Frame information
Frame ID 1
Frame ID 2
Data Field
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