ICP DAS USA I-7530A-MR User Manual page 65

Figure 5-2: The address definition of Input Register and Output Register of
the I-7530A-MR.
Modbus Input Register:
(1) Normal CAN Message Field:
In this field, the address range of "Normal CAN Message" is
00000~01799 (protocol addresses). It is used to store the CAN message
received from the CAN network. One CAN message will occupy 9-byte
address space in the "Normal CAN Message" field. Therefore, it can
store maximum 200 CAN messages. The detailed Modbus address
arrangement of "Normal CAN Message" field is described as the table 5-
2.
I-7530A-MR Modbus RTU to CAN Converter User's Manual (Version 1.07, 06/2016) ------------- 65