1. Introduction .......................................................................................5
1.1
Mode of operation .............................................................................. 5
1.2
Features............................................................................................. 6
1.3
Specifications ..................................................................................... 6
2. Hardware ...........................................................................................8
2.1
Block Diagram.................................................................................... 8
2.2
Pin Assignment .................................................................................. 9
2.2.1
2.2.2
CAN bus Interface............................................................................ 9
2.2.3
Ethernet Connect ........................................................................... 10
2.3
2.3.1
2.3.2
2.4
2.5
2.5.1
2.5.2
2.6
LED Indication.................................................................................. 16
2.7
3. Software...........................................................................................21
3.1
3.2
GW-7238D Utility ............................................................................. 22
3.2.1
Connection Screen......................................................................... 22
3.2.2
Main Screen ................................................................................... 23
4.1
Modbus Network .............................................................................. 31
4.1.1
4.1.2
Modbus Address ............................................................................ 31
4.2
J1939 Network ................................................................................. 33
4.2.1
4.2.2
Parameter Groups.......................................................................... 33
4.2.3
4.2.4
4.2.5
4.2.6
5. Application ......................................................................................37
5.1
GW-7238D J1939 to MBTCP Server / MBRTU Slave Gateway User's Manual (Ver.1.1, May. 2013) --- 3
Table of Contents