ICP DAS USA SMS-531 User manual

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Quick Start
Jan. 2013 Version 1.0
Package checklist
The package includes the following items:
One SMS-531 hardware module
One GSM Antenna (ANT-421-02)
One RS-232 cable (CA-0910)
One Quick Start
One software utility CD
One screw driver
One Micro SD card
Note:
If any of these items are missed or damaged, contact the
local distributors for more information. Save the shipping
materials and cartons in case you want to ship in the future.
Appearance and pin assignments
Power Input
Terminal
No.
Pin
Assignment
N/A
01
N/A
02
N/A
03
N/A
GND
04
GND
Initial
05
Init
Power Input:
10 ~ 30 VDC
06
DC.+VS
07
DC.GND
Frame Ground
08
F.G
COM Port
Terminal
No.
Pin
Assignment
COM3
RS-485
01
DATA-
02
DATA+
COM2
RS-232
03
TxD2
04
RxD2
05
GND
N/A
06
N/A
COM1
RS-232
07
TxD1
08
RxD1

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LED indicators
LED
Description
EXT (red)
on
The external Power is active
off
The external Power is not active
3G (green)
Blinking*2
2 sec
3G module normal (After modem registered.)
Use 3G SIM card.
Blinking*1
2 sec
3G module normal (After modem registered.)
Use 2G SIM card.
off
3G module fail (or Blinking(not 2 sec))
STA (orange)
Normal
3G Fail
PIN code is wrong
Blanking (1 sec)
Always on or off
Blinking per 50 ms
Note: When the SMS-531 sends voice alarm, the 3G LED is continuous on.
Installation
If users want to start SMS-531 normally, it needs to follow these steps to install the SMS-531
below:
1. Install the antenna
2. Plug in the normal SIM card (Before apply the SIM card, confirm it is OK by mobile
phone.)
3. Install the micro SD (Option, for the voice alarm files)
4. Pin06 and Pin07 of the power input connect to the DC.+VS and DC.GND of the power
supply.
5. It is needed to wait for 30 ~ 50 seconds to search the 3G base and register to the ISP.
After finishing the process, SMS-531 would be in normal operation mode and the STA
LED would blank per 1 sec. The start time of SMS-531 depends on the strength of 3G
signal.

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GT-531 Series Utility
It needs the runtime environment with .NET Framework 2.0 or above to execute the GT-531 Series
Utility in the PC.
Install .NET Compact Framework
Install GT-531 Series Utility

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Operation
Before GT-531 Series Utility is connected to the PC correctly, please confirm these following steps:
1. The STA LED is blanking. There are 2 kinds of blanking in SMS-531.
STA LED
Description
Blanking per 1 sec
Normal mode
Blanking per 50 ms
The pin code is wrong. The users need to set
PIN/PUK code in the GT-531 Series Utility.
2. Confirm the RS232 connection between SMS-531 and PC is correct. Users can refer to the
following figure.
3. During the setting procedure, the external power must be turn on.
Note: If the STA LED is always on, please reset SMS-531.
1. Tool Menu
These tools include all the function operation of the GT-531 Series Utility. The description is as
follows.
(1) Project：
The parameters of the SMS-531 can be saved as the project file. The operation functions

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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)
Address
Data
Address
Description
Attribute
00001 ~
00128
0x0 ~
0x7F
Transmitting the alarm SMS and voice according 0~127 alarm
R/W
00129
0x80
Transmitting the SMS dynamically
R/W
00200
0xC7
=1, clearing the received SMS buffer
R/W
00201
0xC8
=1, clearing the transmitting SMS buffer
R/W
00210
0xD1
=1, saving the data of the holding Registers (40001~40256) to
Flash
R/W

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Discrete Input (Function Code: 2)
Input Register (Function Code: 4)
Address
Data
Address
Description
Attribute
30001 ~
30016
0x0 ~
0xF
The status of transmitting SMS buffer 0~15
(1) High Byte: Buffer status
0-> Idle
1-> Waiting for transmitting
2-> Transmitting
3-> Transmitting OK
4-> Transmitting fault
(2) Low Byte : Error code
R
30017
0x10
The last transmitting SMS buffer number
R
30018
0x11
The status of transmitting dynamic SMS
(1) High Byte: Status
0-> Idle
1-> System busy or waiting for transmitting
2-> Transmitting
3-> Transmitting OK
4-> Transmitting fault
(2) Low Byte: Error code
R
30019
0x12
The 3G signal strength
0~31s or 99(Error)
R
30031 ~
30040
0x1E ~
0x27
The SMS transmitter’s phone number. ASCII code by end
char 0x00.
R
Address
Data
Address
Description
Attribute
10001
0x0
The status of transmitting SMS buffer
0：No
1：Overflow
R
10002
0x1
The indication of the received SMS
0：No received SMS
1：Having received SMS
R
10003
0x2
The status of SD card
0：No SD card or Error
1：Normal
R

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30041 ~
30047
0x28 ~
0x2E
The date and time of receiving SMS
R
30048
0x2F
The format of the received SMS
0x0000=ASCII , 0x0001=Unicode
R
30049 ~
30128
0x30 ~
0x7F
The content of the received SMS
ASCII：By end char 0x00 , Unicode：By end char 0x0000
R
Holding Register(Output Register) (Function Code: 3, 6, 16)
Address
Data Address
Description
Attribute
40200
0xC7
Module Address(Modbus Net ID)，1~247
R/W
40201
0xC8
COM2
(1)High Byte
Code
0x04
0x05
0x06
0x07
Baud
2400
4800
9600
19200
Code
0x08
0x09
0x0A
Baud
38400
57600
115200
(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
R/W
40202
0xC9
COM3 setting. The data format is as COM2
R/W
40207
0xCE
Enabling or Disabling the debug message
0x0000=Disable , 0x0001=Enable
R/W
40208
0xCF
Enabling or Disabling the SMS with the check code
0x0000=Disable , 0x0001=Enable
R/W
40384 ~
40399
0x17F ~
0x18E
The variable content of the SMS (Unicode by the end char
0x0000)
R/W
40400 ~
40469
0x18F ~
0x1D4
The dynamic transmitting SMS content (Unicode by the end
char 0x0000)
R/W
40470 ~
40479
0x1D5 ~
0x1DE
The phone number for the dynamic transmitting SMS (ASCII
by the end char 0x00)
R/W

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Troubleshooting
Item
Trouble state
Solution
1
EXT LED is off
Please check the external power and wire connection.
2
STA is always on
1. Check SIM card.
2. Check Antenna.
3. Check the 3G signal strength.
3
The GT-531 Series Utility can not
connect to SMS-531
1. Check STA LED blinking every 1 sec.
2. Check COM port wire connection.
4
Can not receive the SMS
Please confirm the transmitter’s phone number is in the
groups.
5
The defined phone received an
abnormal SMS
The SMS-531 support only Unicode SMS. Confirm the
defined SMS content is Unicode.
6
The SMS-531 is not replied by
Modbus command.
1. Confirm the wire connection.
2. Confirm the Modbus ID of the SMS-531.
3. Confirm the COM Port settings.
7
Can not hear the voice alarm from
the SMS-531
Confirm the SD card is normal and the voice file is in it.
8
SMS DBS could not received the
SMS from SMS-531
User must add “ALARM;” to the start of the short message.
Technical Support
If you have problems about using the SMS-531, please contact ICP DAS
Product Support.
Email: [e-mail]