P2
1.Introduction
This manual introduces the user to the methods used to implement
the I-7530A-MR-FD module into their applications in a quick and easy
way. This only provides with the basic instructions. For more detailed
information, please refer to the I-7530A-MR-FD user manual located on
the ICP DAS CD-ROM or download it from the ICP DAS web site:
https://www.icpdas.com/en/product/I-7530A-MR-FD
The goal of this manual is focused on helping users to quickly
familiarize themselves with the I-7530A-MR-FD module and the data
exchanged between RS-232/485/422 and CAN communication
interfaces. Here, we use two I-7530A-MR-FD modules (called the
I-7530A-MR-FD_A and the I-7530A-MR-FD_B) as the example to
demonstrate how to use the I7530A-MR-FD modules. The architecture
of this example is depicted below.
When the I-7530A-MR-FD receives a valid Modbus RTU command,
it converts this command into a CAN message and transmits it into the
CAN network. Based on the same reasoning, when a CAN message is
received via the I-7530A-MR-FD, the message will be stored in the
I-7530A-MR-FD until being obtained by the Modbus RTU master.
2.Hardware Installation
Users need to make a hardware connection between the two
I7530A-MR-FD modules before the application. The details of this are
illustrated below:
Step1: Set-up the 120
Ω terminator
resistor of the module A and B.
