Modbus RTU to CAN converter. Converts Modbus RTU to CANbus Protocol.  Supports operating temperatures between -25 to 75°C.

I-7530A-MR - Modbus RTU to CAN converter

Modbus RTU to CAN converter. Converts Modbus RTU to CANbus Protocol. Supports operating temperatures between -25 to 75°C.

  Price:  $459.00  

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i-7530a-amr applicationThe 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.

i-7530a-mr application 2


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



  • 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)


  • 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

RS-232/422 full-duplex communication mode
CAN setting
RS-232/422 setting
RS-232/422 command length
The max frames/sec
2.0B, 1Mbps
27 Bytes
2.0B, 1Mbps
27 Bytes
2.0B, 1Mbps
27 Bytes


CAN Interface
Microprocessor inside with 96 MHz
NXP 82C250
9-pin male D-Sub (CAN_L, CAN_H, N/A for others)
Baud Rate (bps)
10 k, 20 k, 50 k, 100 k, 125 k, 250 k, 500 k, 800 k and 1 M (allow user-defined baud rate)
3000VDC power protection and 3750Vrms photo-couple isolation on CAN side
Terminator Resistor
Selectable 120Ω terminator resistor by jumper
Support Protocol
ISO-11898-2, CAN 2.0A and CAN 2.0B
Pin Assignment
C.I.A. DS-102 (CAN_H=7, CAN_L=2)
UART Interface
14-pin terminal connector
RS-232 : TxD, RxD, GND; RS-422 : TxD+, TxD-, RxD+, RxD-; RS-485 : DATA+, DATA-
Baud Rate (bps)
300,600,1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400
3000VDC power protection and 2500Vrms photo-couple isolation on UART side
Round LED
Power supply
+10 ~ +30 VDC
Power Consumption
1.5 W
Dip Switch
Init (Firmware Update, Module Configuration)/Normal (Firmware Operation)
72mm x 118mm x 35mm (W x L x H)
Operating Temperature
-25 ~ 75 ℃
Storage Temperature
-30 ~ 80 ℃
10 ~ 90% RH, non-condensing

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