ICP DAS USA I-7530A-MR-G User Manual page 70

Modbus Output Register:
There are two fields on Modbus output register, one is TX CAN message
field and the other is Configuration command field. The addresses of these
fields are described below.
Protocol Address
(Base 0)
00000 ~ 00006
00256 ~ 00511
(1) TX CAN Message Field:
The "TX CAN Message" in the Modbus Output Register is used to stored a
CAN message which will be transmitted to the CAN network.
The TX CAN Message formats are described below:
Word
number
1
2
3
4
5
6
7
I-7530A-MR Modbus RTU to CAN Converter User's Manual (Version 1.08, 07/2019) ------------- 70
Table5-5: Modbus output register address
PLC Address
(Base 1)
Decimal rule
40001 ~ 40007
40257 ~ 40512
Bit 6~15: Reserved
Bit 5: CAN Specification, 0CAN 2.0A, 1CAN 2.0B
Bit 4: RTR, 0No, 1Yes
Bit 0~3: Data length, value = 0~8
Most significant two bytes of CAN Identifier. (Big
endian)
Least significant two bytes of CAN Identifier. (Big
endian)
The data 1 and data 2 of CAN data field.
The data 3 and data 4 of CAN data field.
The data 5 and data 6 of CAN data field.
The data 7 and data 8 of CAN data field.
Description
TX CAN Message
Configuration command
Description