ICP DAS USA GW-7238D User Manual page 32

Table 4-2: Input Register Function Table (Dec)
Input Register Offset
(Byte)
0,1
2,3
...
3070, 3071
Table 4-3: Output Register Function Table (Dec)
Output Register Offset
(Byte)
0,1
2,3
...
3070, 3071
The following register address is defined to start or stop the
transmission of output J1939 messages in the GW-7238D. It can use the
Modbus functions code 6 (06 Hex) and 16 (10 Hex) to change the register.
Table 4-4: Start/Stop the transmission register of J1939 output message
Register
42009(Dec)
7D8(Hex)
The following register address is defined the error status in the GW-
7238D. It can use the Modbus functions code 4 (04 Hex) to read the
register.
Table 4-5: Registry Error Code of the GW-7238D
Register
31807(Dec)
70E(Hex)
GW-7238D J1939 to MBTCP Server / MBRTU Slave Gateway User's Manual (Ver.1.1, May. 2013) ---
If Value=0, Start the transmission of output J1939 message.
If Value=1, Stop the transmission of output J1939 message.
00 No Error
01 Can't Claim Address in J1939 Network
02 CAN Bus-Off
03 CAN Bus Transmission Fail
32
Modbus Input Register
(Word)
30001(LSB/MSB)
30002(LSB/MSB)
...
31536(LSB/MSB)
Modbus Output Register
(Word)
40001(LSB/MSB)
40002(LSB/MSB)
...
41536(LSB/MSB)
Description
Description