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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.
The following figure shows the application architecture for the GW-7228
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| Applications |
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- Diesel power-train applications
- In-Vehicle networks for trucks and buses
- Truck-Trailer connections
- Fleet management systems
- On Board Diagnostics
- Vehicle Automation
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| Features |
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J1939 Features
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Transmission and reception of all types of J1939 messages, including PDU1, PDU2, broadcast and destination specific
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J1939 Transport Protocol for transmission and reception of large messages (9 - 1785 bytes)
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Supported BAM of Connection Management Message
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Network addresses management
Modbus RTU Features
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Support RS-232, RS-485 and RS-422
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interfacesSupported Modbus RTU slave protocol
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Configurable for Modbus Network ID(1~250)
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Configurable baud rates of 2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
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Configurable for no, odd, or even parity and 1 or 2 stop bits
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Support Function Code 03 / 04 / 06 / 16 of Modbus functions for reading and writing J1939 Messages
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| Utility |
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Provide Modbus network configuration interface
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Provide J1939 network configuration interface – Network Address / Device Name…
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Provide J1939 Input / Output configuration interface
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| Comparison Table |
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ICP DAS Fieldbus Gateways Comparison Table:
Support Protocol |
GW-7228 |
GW-7433D |
I-7231D |
I-7232D |
I-7241D |
I-7242D |
J1939 |
CANopen Master |
CANopen Slave |
CANopen Slave |
DeviceNet Slave |
DeviceNet Slave |
Modbus RTU Slave |
Modbus
TCP server/RTU Slave |
DCON Master |
Modbus RTU Master |
DCON Master |
Modbus RTU Master |
Comm.
Interface |
RS-232
RS-422
RS-485 |
RS-232
RS-485
Ethernet |
RS-232
RS-485 |
RS-232
RS-485 |
RS-232
RS-485 |
RS-232
RS-485 |
Support Protocol |
I-7243D |
GW-7243D |
GW-7552 |
GW-7553 |
HART-710 |
DeviceNet Master |
DeviceNet Slave |
PROFIBUS DP-V0 Slave |
PROFIBUS DP-V0 Slave |
HART Master |
Modbus TCP server |
Modbus TCP/RTU/
ASCII Master |
Modbus RTU/ASCII
Master/Slave |
Modbus
TCP/RTU/ASCII Master/Slave |
Modbus RTU/ASCII
Slave |
Comm.
Interface |
Ethernet |
RS-232
RS-485
Ethernet |
RS-232
RS-422
RS-485 |
RS-232
Ethernet |
RS-232
RS-422
RS-485 |
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| Hardware Specifications |
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Hardware |
J1939 Port Channels |
1 |
CAN Interface |
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 |
Terminal Resistor |
Selectable 120Ω terminal 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 L) |
Environment |
Operating Temp. |
-25 ~ 75 ℃ |
Storage Temp. |
-30 ~ 80 ℃ |
Humidity |
10 ~ 90% RH, non-condensing |
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| Ordering Information |
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GW-7228 CR |
J1939/Modbus RTU Slave Gateway included CA-0910 cable(RoHS)
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| Optional Accessories |
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| CA-0910-C |
9-pin Female D-sub & 3-wire CAN bus cable (1M) |
| CNT-CAN |
CAN bus Connector |
| SG-770 |
7/14 channel Surge Protector |
| 4PCD-002 |
EMI Ferrite Split/Snap-On Core
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| M12A-5P-IP68 |
Field-Installation A-coded 5-pin Female
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| TOP |
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