The product adopts the mainstream ARM 32-bit microprocessor that supports Modbus RTU for rapid expansion of controller I/O modules.
Protocol specification：
Supports Modbus RTU protocol for fast network connection with controllers that support the protocol and rapid I/O port expansion. Please refer to the instruction of Modbus RTU test tool for details.
Register Definition Description：
1. Register corresponds to Modbus RTU
BI/DI---Input Status(0x02)
|
BI/DI Register Address |
BI/DI |
Description |
|
10001 |
1 |
Digital Input Port |
|
10002 |
2 |
Digital Input Port |
|
10003 |
3 |
Digital Input Port |
|
10004 |
4 |
Digital Input Port |
|
10005 |
5 |
Digital Input Port |
|
10006 |
6 |
Digital Input Port |
|
10007 |
7 |
Digital Input Port |
|
10008 |
8 |
Digital Input Port |
|
10009 |
9 |
Digital Input Port |
|
10010 |
10 |
Digital Input Port |
|
10011 |
11 |
Digital Input Port |
|
10012 |
12 |
Digital Input Port |
BO/DO—Holding Register(0x01/0x05)
|
BO/DO Register Address |
BO/DO |
Description |
|
00001 |
1 |
Digital Output Port |
|
00002 |
2 |
Digital Output Port |
|
00003 |
3 |
Digital Output Port |
|
00004 |
4 |
Digital Output Port |
|
00005 |
5 |
Digital Output Port |
|
00006 |
6 |
Digital Output Port |
Register corresponds to Modbus RTU
Voltage and current (choose one)
AI---Input Register(0x03)
|
AI Port |
Voltage Register Address |
Voltage corresponding value |
Current Register Address |
Current corresponding value |
|
1 |
40031 |
0~10V=0~10000 |
40051 |
0~20mA=0~20000 |
|
2 |
40032 |
0~10V=0~10000 |
40052 |
0~20mA=0~20000 |
|
3 |
40033 |
0~10V=0~10000 |
40053 |
0~20mA=0~20000 |
|
4 |
40034 |
0~10V=0~10000 |
40054 |
0~20mA=0~20000 |
|
5 |
40035 |
0~10V=0~10000 |
40055 |
0~20mA=0~20000 |
|
6 |
40036 |
0~10V=0~10000 |
40056 |
0~20mA=0~20000 |
|
7 |
40037 |
0~10V=0~10000 |
40057 |
0~20mA=0~20000 |
|
8 |
40038 |
0~10V=0~10000 |
40058 |
0~20mA=0~20000 |
AO—Holding Register(0x03/0x06)
|
AO Port |
Voltage Register Address |
Voltage corresponding value |
Current Register Address |
Current corresponding value |
|
1 |
40071 |
0~10V=0~10000 |
40081 |
0~20mA=0~20000 |
|
2 |
40072 |
0~10V=0~10000 |
40082 |
0~20mA=0~20000 |
|
AO Register Address |
AO Port |
Description |
|
40001 |
--- |
Device Address: 1（1~15） |
|
40002 |
--- |
BDT: 9600 （2.4K/4.8K/9.6K/19.2K/115.2K） |
|
40003 |
--- |
Check bit: None（0-none;1-odd;2-even） |