I-7530A-MR Modbus RTU to CAN
Converter User’s Manual (Version 1.07, 06/2016) ------------- 29
3.2.6
Set the
“Modbus Slave” parameter
When users select the
“Modbus Slave” communication mode, the
functions,
“Device ID” and “Specific CAN ID”, are useful. In the “Specific
CAN ID
” field, users can set maximum 10 CAN IDs (firmware v1.02 or
later supports 100 CAN ID of CAN messages) which indicate the
corresponding CAN messages to be stored in the specific Modbus Input
Register respectively. In the Modbus Input Register, the register range of
the
“Specific CAN ID” occupies the section from 0x0800 to 0x0859. Each
CAN ID will use 9 Modbus input registers.
In Modbus Slave mode, users need to communicate with the I-7530A-
MR via using Modbus RTU command. The I-7530A-MR only supports
function code 03/04/06/10 of Modbus RTU commands for reading and
writing CAN messages. For more details about Modbus Slave mode,
please refer to the section 5.
Figure 3-13: The configuration for Modbus Slave mode.
