GT-541 User manual
Publication Jun, 2012 Ver.1.03
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GT-541 User manual
Warranty
All products manufactured by ICP DAS are warranted against
defective materials for a period of one year from the date of delivery
to the original purchaser.
Warning
ICP DAS assumes no liability for damages consequent to the
use of this product. ICP DAS reserves the right to change this
manual at any time without notice. The information furnished by ICP
DAS is believed to be accurate and reliable. However, no
responsibility is assumed by ICP DAS for its use, or for any
infringements of patents or other rights of third parties resulting from
its use.
Copyright
Copyright 2011 by ICP DAS Co., Ltd. All rights reserved
worldwide.
Trademark
The names used for identification only may be registered
trademarks of their respective companies.
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Table of Contents
1. Introduction..................................................................3
1.1 Features......................................................................................3
1.2 Applications...............................................................................4
2. Hardware ......................................................................5
2.1 Specifications ...........................................................................5
2.2 Appearance and Pin Assignments......................................6
2.3 Dimensions................................................................................7
2.4 LED Indicators ............................................................................8
2.5 Install the antenna and SIM Card.............................................9
3. Installing the GT-541 Utility ......................................10
3.1 Installing .NET Framework..................................................10
3.2 Installing the GT-541 Utility.................................................13
4. The GT-541 Utility operation description ................16
4.1 Main Menu................................................................................16
4.2 File Menu..................................................................................18
4.3 Connecting to the GT-541....................................................18
4.4 Parameters...............................................................................19
4.5 Download/Upload Parameters............................................22
4.6 System......................................................................................23
4.6.1 Signal Quality.................................................................................23
4.6.2 Reboot the GT-541........................................................................23
4.6.3 Recover to the Factory Settings ...............................................24
4.6.4 Inquiring Firmware Version........................................................24
4.6.5 Inputting the PIN/PUK Code.......................................................25
5. How to use the GT-541 Utility through the Virtual com to
access remote the parameters of the GT-541.............27
5.1 The necessary software installed......................................27
5.2 Setting the VxServer and VxComm Driver ......................28
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1. Introduction
GT-541 is an intelligent multiport serial to GPRS gateway for industry M2M applications. It
is designed for linking RS-232/485 devices to a GPRS network. The user-friendly Axiom
Driver/Utility and VxServer allow users to easily turn the built-in COM ports of the GT-541
into standard COM ports on a PC. By virtue of its protocol independence, a small-core OS
and high flexibility, the GT-541 is able to meet the demands of every network-enabled
application. In addition, the GT-541 also supports GPRS network automatic re-connection
function when the GT-541 is broke the GPRS network by something happened. M2M
solution will improve the service quality and reduce operating costs. Many application areas
can be improved by using GT-541.
1.1 Features
Support GPRS network automatic re-connection function
Support remote maintenance PLC devices that used serial communication as Siemens
S7-200 series, Siemens S7-300 series, WP-8000, LP-8000, iP-8000 and XP-8000
Quad-band 2G Modem Operating of 850/900/1800/1900 MHz
Virtual COM Extend Real COM Ports via GPRS
Remote Configuration by Virtual COM1 x RS-232 port and 1 x RS-485 port for Virtual
COM. 1 x Utility port for Configuration
Built-in Watch-dog Function
Power Reverse Polarity Protection
Power supply +10 VDC ~ +30 VDC
DIN-Rail mountable
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1.2 Applications
PLC remote maintenance application
Remote serial devices monitor application
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2. Hardware
2.1 Specifications
System
CPU ARM Microprocessor
SRAM 32 Kbytes
Flash Memory 512 Kbytes
WDT(watchdog) Yes
2G system
Frequency Band Quad-band: 850/900/1800/1900 MHz
Compliant with GSM Phase
2/2+
Class 4 (2 W @ 850/900 MHz); Class 1 (1 W @ 1800/1900 MHz)
Coding Schemes CS 1, CS 2, CS 3, CS 4
Serial ports
Utility port RS-232: TxD, RxD, GND (use for device configuration and debug)
COM1 RS-232: TxD, RxD, GND (use for communication with other devices)
COM2 RS-485: D+, D- (use for communication with other devices)
Baud Rate RS-232 : TxD,RxD,GND for communication with other devices
Power
Protection Reverse polarity protection
Frame Ground Protection ESD, Surge, EFT, Hi-Pot
Required Supply Voltage +10 VDC ~ +30 VDC
Mechanical
Casing Plastic
Flammability UL 94V-0 materials
Dimensions (W x L x H) 91 mm x 132 mm x 52 mm
Installation DIN-Rail
Environmental
Operating Temperature
-25 ℃ ~ +75 ℃
Storage Temperature
-30 ℃ ~ +80 ℃
Ambient Relative Humidity 5 ~ 95% RH, non-condensing
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2.2 Appearance and Pin Assignments
Pin assignments of GT-541
Power Input
Terminal
No.
Pin
Assignment
01 N/A
02 N/A
N/A
03 N/A
Initial.GND 04 Init.GND
Initial 05 Init
06 DC.+VS
Power Input:
10 ~ 30 VDC
07 DC.GND
Frame Ground 08 F.G.
COM Port
Terminal
No.
Pin
Assignment
01 D-
COM2
RS-485
02 D+
03 TxD1
04 RxD1
COM1
RS-232
05 GND
N/A 06 N/A
07 TxD
Utility Port
RS-232
08 RxD
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2.3 Dimensions
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2.4 LED Indicators
There are three LED indicators to help users to judge the various conditions in the
GT-541. The description is as the following:
(1) EXT (Red): The External Power LED indicated status whether the power is
supplied or not. The description is as the following:
The Power is active The Power is not active
On Off
(2) GSM (Green): The modem LED can indicate the status of GSM module.
GSM module normal GSM module failed
Blinking (3 sec)
Off
Or
Blinking (not 3 sec)
(3) STA (Orange): The system LED indicated whether the GT-541 is normal of
failed.
First Use No connected to VxServer
Successful
connection
Wrong PIN/PUK code
Off On Blinking (1 sec) Blinking (50 ms)
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2.5 Install the antenna and SIM Card
(1) Antenna installation:
(2) SIM card installation
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3. Installing the GT-541 Utility
3.1 Installing .NET Framework
It needs the runtime environment with .NET Framework 2.0 or above to execute the
GT-541 Utility in the P C. If there has .NET Framework 2.0 or above in the PC, the section
3.1 can be omitted.
Microsoft .Net Framework Version 2.0:
http://www.microsoft.com/downloads/details.aspx?Fami
lyID=0856eacb-43624b0d-8edd-aab15c5e04f5&DisplayLang=en
Microsoft .Net Framework Version 3.5:
http://www.microsoft.com/downloads/details.aspx?famil
yid=333325FD-AE52-
4E35-B531-508D977D32A6&displaylang=en
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1. Press “Next” to the next step.
2. Select the “I accept the terms of the License Agreement” and “Install” to the next
step.
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3. The installation process would be going
4. After finishing the installation, press “Finish” to exit the program.
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3.2 Installing the GT-541 Utility
Plug in the shipment CD into the PC,
Execute \GT-541\Software\GT-541_Utility_Setup_Vx.xxBx.exe. The installation figure
is as follows:
1. Press “Next” to start the installation procedure.
2. Select the installation path. The default path is ” C:\ICPDAS\GT-541_Utility”. Press
“Next” to the next step.
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3. Select the “Start Menu Folder”, Press “Next” to the next step.
4. Select additional tasks. Press “Next” to the next step
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5. Click ”Install” to start to install the GT-541 Utility
6. Click “Finish” to finish installing GT-541 Utility
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4. The GT-541 Utility operation description
4.1 Main Menu
The main menu of GT-541 Utility includes the following sections:
Tool Menu
(1) Tool Menu:
These tools include all the function operation of the GT-541 Utility. The
description is as the following:
1. Project::
The parameters of the GT-541 can be saved as the project file. The
operation functions include “New”, “Open”, “Save”, “Save as…”, and etc...
2. Exit:
Exit the GT-541 Utility
3. COM Port:
The COM Port number of the host PC connecting to the GT-541.
4. Connect:
Parameter Groups
Status Bar
Parameters
Description
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Connecting to the GT-541.
5. Download:
Downloading the settings to the GT-541 device.
6. Upload:
Uploading the settings from the GT-541 device to GT-541 Utility.
7. System:
Providing some system operations including ”Signal Quality” 、”Reboot
GT-541”、
“Recover Default Settings”、”Firmware Version”、”Input PIN/PUK”、
(2) Parameter groups:
There are four parameter groups in the GT-541 Utility including: ”System”
and ”COM Port”
(3) Parameters:
Show or set the parameters.
(4) Description:
A particular or minute account
(5) Status Bar:
This bar can show the operation procedure of the GT-541 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 address of the GT-541
5. The result for operating the functions
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4.2 File Menu
This tool provides users to operate the project file. It can save the GT-541 configuration
as the file or upload the settings from the file. It is convenient to manage a lot of GT-541s.
The explanation is as the following:
New: Opening a new file
Open: Opening a exited file
Save: Saving the file.
If the parameters are changed or save the uploading parameters from the GT-541,
you can use this function to save these configurations.
Save as: Saving the file as another name
4.3 Connecting to the GT-541
For connecting to the GT-541, you can follow the steps below.
1. Select the COM port of the host PC and connect to the Utility port of GT-541.
2. Press ”Connect” to connect to the GT-541. If the connection is failed, check the
COM port settings and wiring.
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4.4 Parameters
The parameters would be shown in the right of the windows if click the tree field in the
left side of the GT-541 Utility. Press the parameters’ “Value” filed can change these
parameters as the following figure.
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4.4.1 System
There are 12 items in the system field below.
Parameters Description
Protocol GT-541 support protocol. Read only
Address The address of the GT-541. Read only
Remote Server The remote VxServer server’s IP or domain name
Remote Server Port The remote VxServer server’s Port
GPRS User name GPRS user name
GPRS password GPRS password
GPRS APN GPRS APN (access point name)
Virtual IP
Virtual IP. Range: 127.0.0.1~127.255.255.254，This parameter
can’t be the same with other device.
Module Alias Module Alias. (max. 7 character)
Heartbeat Time Heartbeat time. Range: 10 sec. ~ 65535 sec.
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Com End Method
Com End Param.
Com End Method Com End Param. Remark
0: Fixed Time. It is
as complete a data
when no data came
at a fixed time
2 ms~ 65535 ms
1: Fixed Length，It is
as complete a data
when the length of a
data more than fixed
length
1 ~ 1000
2: Fixed end byte. It
is as complete a
data when receives
the fixed end byte.
Like “CR” (0x0d)
0 ~ 255
The GT-541 will
transmit a data
when there is a
data more than
1000 bytes.
4.4.2 COM Port
The parameters of COM Port (COM1, COM2)
Parameters Description
Port COM Port name (read only)
Data Bit 7 or 8 bits
Stop Bit 1 or 2 bits
Parity Bit None, Even, Odd
Baudrate
2400、4800、9600、19200、38400、57600 and 115200bps
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4.5 Download/Upload Parameters
1. Download parameters
As the configuration is finishing, the function can download the parameters to the
GT-541 by clicking “Download” as the following figure.
2. Upload Parameters
“Uploading” button can upload the parameters from the GT-541 as the following
figure.
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4.6 System
4.6.1 Signal Quality
Click “System->Signal Quality” can show the signal quality windows to know the GSM
signal strength.
Field Description:
vided into 5 sections shown in percentage.
O
the GSM signal strength from the GT-541.
4.6.2 Reboot the GT-541
41” button can reset the GT-541 as follows.
The strength is di
peration:
Read：Read
Clicking “System->Reboot GT-5
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4.6.3 Recover to the Factory Settings
by clicking “System->Recover Default It can recover the GT-541 to the default settings
Settings”.
4.6.4 Inquiring Firmware Version
menu, and the window would show Press “System->Firmware Version” in tool
the versions of the GT-541 Utility and firmware.
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4.6.5 Inputting the PIN/PUK Code
is blanking per 50 ms, it is needed to input When the GT-541 starts and the STA LED
the PIN or PUK code in the GT-541. In this condition, click “System->Input PIN/PUK”
button to set the PIN/PUK code.
(1) Asking for inputting PIN code:
nter SIM PIN/SIM PUK” window would pop-up as If the PIN code is effective, the “E
follows. If the number of times for inputting the wrong PIN code is more than the
allowed number, the PIN code would be inef fective. And the “PUK code” window would
pop up.
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(2) Asking for inputting PUK code
PUK code” window would pop-up as follows. As the If the PIN code is ineffective, the “
number of times for inputting the wrong PUK code is more than allowed number, the
SIM card would be ineffective forever. Therefore, it is important to input the correct
PUK code.
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5. How to use the GT-541 Utility through the Virtual com
to access remote the parameters of the GT-541
5.1 The necessary software installed
Installing .NET Compact Framework Installing VxServer
Installing VxComm Drivr Installing GT-541 Utility
Download Microsoft .Net Framework Version 2.0:
http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-a
ab15c5e04f5&DisplayLang=en
Download VxServer software:
http://m2m.icpdas.com/VxServer.html
Download VxComm Driver software:
http://ftp.icpdas.com/pub/cd/8000cd/napdos/driver/vxcomm_driver/2k/
Download GT-541 Utility software:
http://ftp.icpdas.com/pub/cd/usbcd/napdos/gt-541/software/
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5.2 Setting the VxServer and VxComm Driver
1. Verify that the device has been connected up
2. Execute VxComm Utility, then click ”Search Servers”
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3. Select your device, then click ”Add Server(s)”
4. IP Range=> check “Maps virtual COM ports to “Port I/O” on servers.
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5. Advanced Options, please follow the below parameter settings
Parameters Fixed value
Keep Alive Time 1
Connection Broken 3
Connect Timeout 1
Command Port 10000
Virtual I/O Port 9999
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6. Tools => Restart Driver
7. Click “Restart Driver”
GT-541 COM1 (RS-232)
GT-541 COM2 (RS-485)
GT-541_Utility
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8. According the Port I / O of VxComm Utility to select the com port of GT-541 Utility,
then click “GT-541 Utility => Connect”
9. The remaining steps, please refer to Chapter 4
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Version Record
Version By Date Description
1.00 Yide 2011/12/13
1.01 Yide 2011/12/26
1.02 Yide 2011/12/28
1.03 Yide 2012/06/29
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