GW-7228 CR ICP DAS new

The GW-7228 is a solution that provides a protocol conversion between J1939 and Modbus RTU. For J1939 network, the GW-7228 supports PDU1, PDU2, broadcast and destination specific type of J1939 messages. From the view of Modbus RTU network, the GW-7228 is a Modbus RTU slave to reply the request from Modbus RTU master. We provide Utility software for users to configure the parameters of J1939 / Modbus RTU of the GW-7228. The application fields can be Diesel power-train applications, In-Vehicle networks for trucks and buses, etc.
 

• Provide PWR / J1939 / MODBUS indication LED
• 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)
• Support BAM of Connection Management Message
• Network addresses management
• Support RS-232, RS-485 and RS-422 interfaces
• Support Modbus RTU slave protocol
• Configurable for Modbus Network ID(1~250)
• Configurable baud rates of 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
• Configurable for none, odd, or even parity and 1 or 2 stop bits
• Support Function Code 03 / 04 / 06 / 16 of Modbus functions for reading and writing J1939 Messages 

Hardware

J1939 Port Channels: 1

CAN Interface

Controller: Microprocessor inside with 96 MHz
Transceiver: NXP 82C250
Connector: 9-pin D-sub connector
Baud Rate (bps): 250k
Isolation: 3000 VDC power protection on CAN side, 2500Vrms photo-couple isolation on CAN bus
Terminator Resistor: Selectable 120Ω terminator resistor by jumper
Specification: 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

Connector: 14-pin screw terminal connecter
COM1: RS-232(TXD, RXD, GND) / RS-422(Tx+, Tx-, Rx+, Rx-) / RS-485(D+, D-)
Baud Rate (bps): 2400, 4800, 9600, 19200, 38400, 57600, 115200

LED

Round LED: PWR / J1939 / MODBUS

Power

Power supply: +10 ~ +30 VDC
Power Consumption: 1.5 W
Dip Switch: Init (Firmware Update) / Normal (Firmware Operation)

Mechanism

Installation: DIN-Rail
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