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GW-7238D-G CR ICP DAS Gateways


GW-7238D-G CR

J1939 to Modbus TCP Server / RTU Slave Gateway



€ 364,89

(VAT excluded)

€ 445,17(VAT included)

Prezzo di 1 pz. iva (22%) inclusa: € 445,17

Availability: 15 business days

SKU: 118775

Model: GW-7238D-G CR

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  • Built-in jumper to select 120 ohm terminal resistor
  • Watchdog inside
  • Transmission and reception of all types of J1939 messages, including PDU1, PDU2, broadcast and destination specific
  • J1939 Transport Protocol for transmission and reception of large messages (9 - 1785 bytes)
  • Supports BAM of Connection Management Message
  • Network addresses management
  • Supports Modbus TCP server / RTU slave protoco


The GW-7238D is a gateway that provides conversion between J1939 and Modbus TCP/RTU protocol. For J1939 network, the GW-7238D supports PDU1, PDU2, broadcast and destination specific type of J1939 messages. For Modbus TCP/RTU network, the GW-7238D is a Modbus TCP server / RTU slave to reply the request from Modbus TCP client / RTU master. Utility software is provided for users to configure J1939 and Modbus TCP/RTU setting in the GW-7238D. The application fields can be diesel power-train applications, In-Vehicle networks for trucks and buses, etc.
The following figure shows the application architecture for the GW-7238D


Diesel power-train applications
Diesel power-train applications
In-Vehicle networks for trucks and buses
Truck-Trailer connections
On Board Diagnostics
Vehicle Automation


CPU Module

CPU: 80186, 80 MHz or compatible
LED Indicators: 
Status: PWR / J1939 / MODBUS / ERR

COM Ports

Ports: 1 x RS-232
1 x RS-485 (Self-turner inside)
Baud Rate: 9600, 19200, 38400, 57600, 115200
Protocol: Modbus RTU


Protocol: RJ-45 with LED indicator / Modbus TCP


Controller: NXP SJA1000T with 16 MHz clock
Ports: 1
Baud Rate: 250 k
Isolation: 1000 VDC for DC-to-DC, 2500 Vrms for photo-couple
Terminal Resistor: Jumper for 120 Ω terminal resistor
Specification: ISO-11898-2, CAN 2.0A and CAN 2.0B


Consumption: 2 W


Dimensions (mm): 122 x 72 x 33 (L x W x H)
Installation: DIN-Rail


Operating Temperature: -25 ~ +75 ℃
Storage Temperature: -30 ~ +80 ℃
Humidity: 10 ~ 90% RH, Non-condensing