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30041 ~
0x28 ~
30047
0x2E
30048
0x2F
30049 ~
0x30 ~
30128
0x7F
Holding Register(Output Register) (Function Code: 3, 6, 16)
Address Data Address
40200
0xC7
40201
0xC8
40202
0xC9
40207
0xCE
40208
0xCF
40384 ~
0x17F ~
40399
0x18E
40400 ~
0x18F ~
40469
0x1D4
40470 ~
0x1D5 ~
40479
0x1DE
The date and time of receiving SMS
The format of the received SMS
0x0000=ASCII , 0x0001=Unicode
The content of the received SMS
ASCII： By end char 0x00 , Unicode：By end char 0x0000
Module Address(Modbus Net ID)，1~247
COM2
(1) High Byte
Code
0x04
Baud
2400
Code
0x08
Baud
38400
(2) Low Byte
Bit 2:0 (Data Bit)
011：8 Data Bits
Bite 4:3(stop bit)
00：1 stop bit
01：2 stop bit
Bite 6:5(parity)
00：no parity
01：odd parity
10：even parity
COM3 setting. The data format is as COM2
Enabling or Disabling the debug message
0x0000=Disable , 0x0001=Enable
Enabling or Disabling the SMS with the check code
0x0000=Disable , 0x0001=Enable
The variable content of the SMS (Unicode by the end char
0x0000)
The dynamic transmitting SMS content (Unicode by the end
char 0x0000)
The phone number for the dynamic transmitting SMS (ASCII
by the end char 0x00)
Description
0x05
0x06
0x07
4800
9600
19200
0x09
0x0A
57600
115200
SMS-531 Quick Start v1.0 2013/01
R
R
R
Attribute
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
7/8
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