GW-7228-G J1939 to Modbus RTU Slave Gateway


Key Features

  • Transmission and reception of all types of J1939 messages, including PDU1, PDU2, broadcast & destination specific
  • J1939 Transport Protocol for transmission & reception of large messages (9 – 1785 bytes)
  • Supported BAM of Connection Management Message
  • Network addresses management
  • Support RS-232, RS-485 and RS-422
  • Interfaces supported Modbus RTU slave protocol
  • Configurable for Modbus Network ID(1~250)
  • Configurable baud rates of 9600, 19200, 38400, 57600, 115200 bps
  • Configurable for no, odd, or even parity & 1 or 2 stop bits
  • Support Function Code 03/04/06/16 of Modbus functions for reading & writing J1939 Messages


The ICP DAS GW-7228 is a solution that provides a protocol conversion between J1939 and Modbus RTU. On the J1939 network side, the GW-7228 supports PDU1, PDU2, broadcast and destination specific type of J1939 messages. On the Modbus RTU network side, the GW-7228 is a Modbus RTU slave that replies to the request from the Modbus RTU master. A software utility is provided to enable users to seamlessly configure the J1939 and Modbus RTU parameters on the GW-7228 module for easy integration with applications.

The ICP DAS GW-7228 module has been (proven) used in industrial applications such as diesel power-train, in-vehicle network for trucks and buses etc