Supported Modbus Functions; Modbus Address - ICP DAS USA I-7530A-MR-G User Manual

Supported Modbus Functions

6.1
The Modbus function codes supported by the I-7530A-MR are shown in the
following table.
Function Code
3 (03 Hex)
4 (04 Hex)
6 (06 Hex)
16 (10 Hex)

Modbus Address

6.2
According to the different purposes these register are divided into three
fields, "Normal CAN Message Field", "Specific CAN Message Field" and
"Module Status Field". The diagram of Input Register are shown below：
I-7530A-MR Modbus RTU to CAN Converter User's Manual (Version 1.08, 07/2019) ------------- 64
Table 6-1: Supported Modbus Function Codes
Function Name
Reading Output
Register
Reading Input
Register
Write Output
Register
Preset Multiple
Registers
Description
Read multiple registers for a sent
CAN messages
Read multiple input registers for
reading CAN messages
1. Write single registers for
sending a CAN message.
2. This function is implemented
in firmware version v2.00 or
later.
1. Write multiple registers for
sending a CAN message
2. Configuration Command
(00256~00512)