ICP DAS USA I-7530 User Manual page 22

Communication Descriptions:
If there are 7 bytes data, "1234567", transmitted from Device1, the
Device2 will also receive "1234567" from the COM port of I-7530#2.
The CAN ID in above figure is determined by the CAN specification
selected by users. If users select CAN 2.0A, the CAN ID is 11-bit ID. If
CAN 2.0B is used, the CAN ID is 29-bit ID. Here, assume users set the
Fixed Tx CAN ID field of I-7530#1 to be 0x001 ( "0x" is for hexadecimal
format) and CAN 2.0A is used, the CAN ID displayed in above figure is
0x001.
If there are 9 bytes data, "123456789", transmitted from Device1, the
Device2 will also receive "123456789" from the COM port of I-7530#2.
Note: If users use 115200bps for RS-232 port of I-7530, it is
recommended that the configuration of I-7530 CAN baud is closed to the
configuration of RS-232 baud, such as 125K bps. When you use pair
connection function of I-7530, the baud under 125K bps is proper.
I-7530 RS-232/CAN Converter User's Manual (Version 2.0, Sep/2007) ------------- 22