I-7530A-MR

The I-7530A-MR Modbus RTU to CAN converter is helpful for data exchanging between the RS-232/485/422 devices and the CAN devices. It supports three communication modes: “Normal”, “Modbus RTU”, “Pair-connection”. 

In the Normal mode, the I-7530A-MR is designed to unleash the power of CAN bus via RS-232/485/422 communication method. It accurately converts ASCII format messages and CAN messages between RS-232/485/422 and CAN networks. This mode let you to communicate with CAN devices easily from any PC or programmable devices with RS-232/485/422 interface. 

In Modbus RTU mode, it allows a Modbus RTU master to communicate with CAN devices on a CAN network. The following figure shows the application architecture of this mode.

In 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.

Applications

Control System • Building Automation • Factory Automation • Distributed data acquisition

Features

• RoHS Design
• Fully compatible with ISO 11898-2 standard
• Programmable CAN bus baud rate from 10 kbps to 1 Mbps or user-defined baud rate
• Support CAN bus acceptance filter configuration
• Support firmware update via RS-232
• Provide utility tool for module setting and CAN bus communication testing
• Built-in jumper to select 120Ω terminator resistor
• CAN buffer: 128 data frames ; UART buffer: 256 bytes
• Power, data flow and error indicator for CAN and UART status
• Hardware Watchdog design
• Convert CAN message to specific ASCII command string (Normal mode)
• Convert specific ASCII command string to CAN message (Normal mode)
• Provide the transparent communication between the RS-232/485/422 devices via CAN bus (Pair-connection mode)
• Support function code 0x03/0x04/0x10 of Modbus RTU command for reading and writing CAN message (Modbus RTU mode)

Utility

• CAN bus Baud Rate configuration
• CAN acceptance filter configuration
• CAN 2.0A or 2.0B specific selection
• RS-232/485/422 baud rate and data format configuration
• RS-232/485/422 communication with checksum function selection
• Communication mode setting
• Easily transmit/receive CAN messages

Performance Test