GW-7238D CR ICP DAS new

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.
 

• Provides PWR / J1939 / MODBUS indication LEDs
• Built-in jumper to select 120 ohm terminal resister
• 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 RS-232, RS-485 and Ethernet interfaces
• Configurable baud rates of 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
• Supports Modbus TCP server / RTU slave protocol
• Configurable for Modbus Network ID (1~250)
• Allows 5 Modbus/TCP clients’ simultaneous accesses
• Supports Function Code 03 / 04 / 06 / 16 of Modbus functions for reading and writing J1939 Messages 

Hardware

CPU: 80186, 80 MHz or compatible

CAN Interface

Controller / Transceiver: NXP SJA1000T with 16 MHz clock / NXP 82C250
Channel number: 1
Connector: 5-pin screwed terminal block (CAN_L, CAN_H, N/A for others)
Baud Rate (bps): 250 k
Isolation: 1000 VDC for DC-to-DC, 2500 Vrms for photo-couple
Terminator Resistor: Jumper for 120 Ω terminator resistor
Specification / Protocol: ISO-11898-2, CAN 2.0A and CAN 2.0B / J1939

UART Interface

COM 1 / Protocol: RS-232 / Modbus RTU
COM 1 Connector: 5-pin screwed terminal block (TxD, RxD, RTS, CTS, GND)
COM 2 / Protocol: RS-485 (Self-turner inside) / Modbus RTU
COM 2 Connector: 2-pin screwed terminal block (DATA+, DATA-)

Ethernet Interface

Controller: 10/100Base-TX Ethernet Controller (Auto-negotiating, Auto_MDIX)
Connector / Protocol: RJ-45 with LED indicator / Modbus TCP

LED

Round LED: PWR / J1939 / MODBUS RTU / MODBUS TCP

Power

Power supply: Unregulated +10 ~ +30 VDC
Protection: Power reverse polarity protection, Over-voltage brown-out protection
Power Consumption: 3 W

Mechanism

Dimensions: 108mm x 72mm x 35mm (H x W x D)

Environment

Operating Temp. -25 ~ 75 ℃
Storage Temp. -30 ~ 80 ℃
Humidity: 10 ~ 90% RH, non-condensing