GW-7238D-G J1939 to Modbus TCP Server / RTU Slave Gateway with CA-0910 cable


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 Ethernet
  • Interfaces supported Modbus TCP server/RTU slave protocol
  • Communication support both Modbus TCP/RTU to J1939 at the same time
  • Configurable UART baud rates of 9600, 19200, 38400, 57600, 115200 bps
  • Allow Max 5 Modbus TCP clients to access GW-7238D simultaneously
  • Support Function Code 03/04/06/16 of Modbus functions for reading & writing J1939 Messages


The ICP DAS GW-7238D is a gateway that provides conversion between J1939 and Modbus TCP/RTU protocol. On the J1939 network side, the GW-7238D supports PDU1, PDU2, broadcast and destination specific type of J1939 messages. On the Modbus TCP/RTU network side, the GW-7238D is a Modbus TCP Server / RTU slave that replies to the request from the Modbus TCP client / RTU master. A software utility is provided to enable users to seamlessly configure the J1939 and Modbus TCP/RTU parameters on the GW-7238D module for easy integration with applications.

The ICP DAS GW-7238D module has been (proven) used in industrial applications such as diesel power-train, in-vehicle network for trucks and buses etc