I-7530A-MR Modbus RTU to CAN
Converter User’s Manual (Version 1.07, 06/2016) ------------- 94
Therefore, before using this configuration, you must know what is the
Modbus Read Coil/Registers format that the Modbus slave devices
supported.
Slave Node ID:
Set the slave Node ID which you want to access.
Function Code:
In this setting interface, it supports the Modbus function code 0x01,
0x02, 0x03, and 0x04.
Start Address (High):
This field indicates the high byte of Modbus reference IO data
address.
Start Address (Low):
This field indicates the low byte of Modbus reference IO data address.
Bit Count(High):
This filed indicates high byte of the number of bits which you want to
read.
Note:
When using function code 0x03 or 0x04, this field will be the
number of words (high byte).
