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include "New", "Open", "Save", "Save as...", and ...etc.
(2) Language：
The GT-531 Series Utility only support English interface now.
(3) Exit：
Exit the GT-531 Series Utility
(4) COM Port：
The COM number of the host PC connecting to the SMS-531
(5) Connect：
Connecting to the SMS-531
(6) Download：
Downloading the setting to the SMS-531
(7) Upload：
Uploading the parameters from the SMS-531 to GT-531 Series Utility
(8) Learn：
Providing the simple way for users to learn the Modbus RTU commands to operate SMS-531
(9) System：
Providing some system operations include "Signal Quality", "Reboot SMS-531", "Recover
Default Settings", "Firmware Version", "Input PIN/PUK" and "Voice File Management"
2. Parameter Groups：
There are four parameter groups in the GT-531 Series Utility including "System", "COM
Port", "Phone Book" and "Alarm Message".
3. Parameters：
Showing or setting the parameters
4. Status Bar
Showing the operation procedure of the GT-531 Series Utility
From left to right, they are:
(1) The used com port number
(2) Communication configuration of the COM Port
(3) The current status of the COM port
(4) The Modbus address of the SMS-531
(5) The result for operating the functions
SMS-531 Modbus address Table
The Modbus function codes supported in the SMS-531 are 1, 2, 3, 4, 5, 6 and 16. The Modbus
address distribution is as the following table.
Coil Status (Function Code:1, 5)
Data
Address
Address
00001 ~
0x0 ~
00128
0x7F
00129
0x80
00200
0xC7
00201
0xC8
00210
0xD1
Transmitting the alarm SMS and voice according 0~127 alarm
Transmitting the SMS dynamically
=1, clearing the received SMS buffer
=1, clearing the transmitting SMS buffer
=1, saving the data of the holding Registers (40001~40256) to
Flash
Description
SMS-531 Quick Start v1.0 2013/01
Attribute
R/W
R/W
R/W
R/W
R/W
5/8
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