ICP DAS USA I-7530A-MR-FD User Manual page 5

In the pair-connection mode, this module provides the transparent
communication between the RS-232/485/422 devices via CAN bus. The
application architecture may be as follows.
Figure 1-2: The application architecture in the pair-connection mode.
In the Modbus Master mode, it allows many Modbus RTU slaves to
communicate with CAN devices on a CAN network. The following figure
shows the application architecture in this mode.
Figure 1-3: The application architecture in the Modbus Master mode.
I-7530A-MR-FD Modbus RTU to CAN Converter User's Manual (Version 1.0, 08/2022) ------------- 5