ICP DAS USA GW-7228 User Manual page 28

Table 3-5 J1939 Input/Output Configuration Parameter
Item
The offset setting into the Modbus I/O
Register data, the offset is in bytes.
In the Input Table, the offset is into the
Modbus AI Input table.
Input Register Offset
Register
Offset
In the Output Table, the offset is into the
Modbus AI Output table.
Output Register Offset
The amount of the data to be transferred
Data
between the Modbus I/O table and the J1939
Length
message data, the length is in bytes.
The J1939 PGN is associated with this data
field.
In Input Table, the data from messages
received with this PGN will be transferred into
PGN
the Input table.
In Output Table, a message with this PGN will
be built and transmitted using data from the
Output table.
Priority The data is used to optimize message latency
GW-7228 J1939/Modbus RTU Slave Gateway User's Manual (Ver 1.3, Apr/2011) ------------- 28
Description
(Byte)
0,1
2,3
...
3070, 3071
(Byte)
0,1
2,3
...
3070, 3071
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)
Range
0~1535
(byte)
0~1785
(byte)
Any kinds
of J1939
Parameter
Group
Number
0~7