Shandong USR IOT Technology USRGM3 Serial to GPRS Module User Manual

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited1/55tec@usr.cn

USR-GM3/GM3s

U SR-GM3/GM3s

USR-GM3/GM3s

USR-GM3/GM3sUser

U ser

User

UserGuide

G uide

Guide

(USR-GM3/GM3s)

Fileversion:Ver1.08

USR-GM3/GM3sishighly-integratedUARTtoGSM/GPRSmodule,Userscaneasilymake

communicationbetweenserialdeviceandcellphoneandnetworkdevicewithit.

Thismoduleisdifferentfromthecommonmodulesonthemarket,itisthesmallestGPRSDTU,

plug-and-playdevice.USR-GM3swillbewithSIMcardinside,moreeasiertouse,itjustneed

powersupply.

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Content

USR-GM3/GM3sUserGuide.........................................................................................................................................1

QuickStart.........................................................................................................................................................................3

1.1.Testingenvironment.........................................................................................................................................3

1.2.Transmission.....................................................................................................................................................4

2.Introduction...................................................................................................................................................................6

2.1.ShortDescription..............................................................................................................................................6

2.2.Characteristic....................................................................................................................................................6

2.3.Features.............................................................................................................................................................6

2.4.ApplicationField................................................................................................................................................7

3.Hardware.......................................................................................................................................................................8

3.1.PinDescription..................................................................................................................................................8

3.1.1.OutsideView..........................................................................................................................................8

3.1.2.PinAssignment（

Top

）.......................................................................................................................8

3.1.3.PCBLayout............................................................................................................................................8

3.1.4.PinDescription.......................................................................................................................................9

3.1.5.OutsideAntenna..................................................................................................................................

11

3.2.HardwareBlockDiagram..............................................................................................................................

11

4.ModuleFunctions......................................................................................................................................................

11

4.1.WorkMode......................................................................................................................................................12

4.1.1.SwitchingWorkMode.........................................................................................................................12

4.1.2.Networktransmission.........................................................................................................................12

4.1.3.HTTPDFunction.................................................................................................................................20

4.1.4.SMSMessageTransmission.............................................................................................................23

4.2.RegisterPackage...........................................................................................................................................27

4.2.1.Description...........................................................................................................................................28

4.2.2.Usage....................................................................................................................................................28

4.3.HeartBeatPackage.......................................................................................................................................29

4.3.1.Description...........................................................................................................................................30

4.3.2.Usage....................................................................................................................................................30

4.4.UART................................................................................................................................................................31

4.4.1.RS485...................................................................................................................................................32

4.4.2.SimilarRFC2217.................................................................................................................................32

5.ParametersSetting....................................................................................................................................................33

5.1.Operating

AT

command.................................................................................................................................34

5.2.

AT

CommandFormat.....................................................................................................................................35

5.3.

AT

CommandSet...........................................................................................................................................37

AppendixA:Contact......................................................................................................................................................54

AppendixB:Disclaimer.................................................................................................................................................55

AppendixC:UpdateHistory.........................................................................................................................................55

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Quick

QuickStart

S tart

Start

ThischapterisaquickstartguideforusingUSR-GM3/GM3smodule.Ifitisthefirsttimeto

useUSR-GM3/GM3sforyou,youshouldreadthischaptercarefully,andthenfollowthetips,

trytodosometestsbyyourself.ItwillhelpyoutoknowaboutUSR-GM3/GM3sgenerally.If

youhaveexperienceofusingUSR-GM3/GM3s,pleaseescapethischapter.

Inthischapter,youwillbetoldhowtomakecommunicationbetweenserialdeviceandTCP

server.Underdefaultsetting,GM3moduleworksinnetworktransmissionmode,itconnects

toourTCPtestserver,addressistest.usr.cn,portis2317.Theserverwillrespondwhatit

receives.

Allthesoftwareusedinthisdocumentcanbeobtainedfromourwebsitewww.usriot.com

w ww.usriot.com

www.usriot.com

www.usriot.com.

You

canalsoaccessUSRcustomersupportcenter:http://h.usriot.com

http://h.usriot.com

http://h.usriot.com.

1.1.

1.1.Testing

T esting

Testing

Testingenvironment

e nvironment

environment

ThevoltageofmoduleisTTL3.3V,soyoushouldnotconnectitwithcomputerserialport

directly,anadapterisnecessary.

NOTE:

1.

1.If

I f

If

Ifit

i t

it

itis

i s

is

isthe

t he

the

thefirst

f irst

first

firsttime

t ime

time

timeto

t o

to

touse

u se

use

useour

o ur

our

ourmodule

m odule

module

modulefor

f or

for

foryou,

y ou,

you,

you,please

p lease

please

pleaseuse

u se

use

useour

o ur

our

ourEV

E V

EV

EVK(Evaluation

K (Evaluation

K(Evaluation

K(EvaluationKit)

K it)

Kit)

Kit),

,

,it

i t

it

may

maysave

s ave

save

saveyou

y ou

you

youlot

l ot

lot

lotof

o f

of

oftrouble

t rouble

trouble

troubleand

a nd

and

andtime.

t ime.

time.

2.

2.keep

k eep

keep

keepdefault

d efault

default

defaultsetting

s etting

setting

settingin

i n

in

inthis

t his

this

thistest.

t est.

test.

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1.2.

1.2.Transmission

T ransmission

Transmission

1.PutSIMcardintothesocketonEVK,connectCOM1toPC

’

sserialportwithcable.

2.Opentestsoftware”USR-TCP232-Test”,setrightserialportnumberandbaudrate,and

openit.Asthefollowingfigure.

3.PoweruptheEVKwithDC5Vadapter,thenthePOWERledwillbeon,severalseconds

later,theWORKledwilltwinkle,andthenGPRSLINKAledwillbeon.

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Meaningofled:

POWER“on”meansnormalpowersupply,“off”meanspowersupplyfailure.

WORK“blink”meansrunningcorrectly,“off”meansnotrunning.

GPRS“on”meansattached,“off”meansattachfailure.

LINKA“on”meanssocket

A

hasconnectedtoserver,“off”meansnotconnect.

LINKB“on”meanssocketBhasconnectedtoserver,“off”meansnotconnect.

DATA“blink”meanstransmission,“off”meansnotransmission.

4.WaitforLINKAledon,senddatatomoduleviaserialport.Forexample,ifyousend

“www.usr.cn”,atthesametime,the

DATA

ledwillbeonforawhile.Then,youwillget

“www.usr.cn”inthereceivingwindowfromourtestserver.

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2.

2.Introduction

I ntroduction

Introduction

2.1.

2.1.Short

S hort

Short

ShortDescription

D escription

Description

USR-GM3/GM3sisnewlistingat2015,itisoneembeddedGSMmodule.USR-GM3/GM3s

isdesignedforembeddedsystem,itissosmallandconvenientthatyoucanintegrateitto

yoursystemeasily.

2.2.

2.2.Characteristic

C haracteristic

Characteristic

SmallandcompletedfunctionGPRSDTU,transmissionbetweenserialandGPRS

SupportGSM850/900,DCS1800/1900

SupportGSM/GPRS/EDGE,support2G/3G/4GSIMcard,butbasedon2Gnetwork

Support2sockets,SupportTCPandUDP

4KBcacheforeachofsockets,usercanchoosetocachedataornot

Supportregisterpackageandheartbeatpackage

SupportsettingparametersviaSMSmessage

Support4workmodes:SMSmessagetransmissionmode,networktransmissionmode

andHTTPDmode

Supportbasicandextend

AT

commandsets

SupportsimilarRFC2217

Supportflowcontrol:RTS/CTS

SupportRS485

2.3.

2.3.Features

F eatures

Features

Baudrate:2400,4800,9600,14400,19200,28800,33600,38400,57600115200,

230400,460800,921600.

Operatingvoltage:3.40V~4.20V

Operatingcurrent:average55mA~80mA,maximum750mA

Operatingtemperature:-25~+85°C

Storagetemperature:-40~+125°C

Storagehumidity:5%~95%RH

MaxTXpower:GSM900class4(2W)，DCS1800class1(1W)

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2.4.

2.4.Application

A pplication

Application

ApplicationField

F ield

Field

Inpowerindustry,USR-GM3/GM3scanembeddedintheelectricmeter,powerapplication

terminalsandotherequipmenttorealizeofreactivepower

compensationmonitoring,distributionmonitoring,metercollectionandcopy,

streetlampcontrollingandotherapplications,toachievesmartcity.

InHeatingfield,USR-GM3/GM3scanbeembeddedinm-BUSconcentratortoachievethe

integrationoftheconcentratorandwirelesscommunication.

Inwaterindustry,USR-GM3/GM3sisalsoplaysasignificantroleinsystemofwatersetco

py,waterresourcemanagementandremotemonitoring,wirelesscommunicationofwater

pipenetworkmonitoring.

InEnvironmentalprotection,USR-GM3/GM3smodulecanbeintegratedintotheon-line

monitoringsystemoffluegason-linemonitoring(CEMS),waterqualityonlinemonitoring.

Inthefieldofequipmentmaintenance(Equipmentmaintenancefield),USR-GM3/GM3suse

inthesystemofequipmentremotemonitoring,suchaselevatormonitoring,airconditioning

monitoring.

OtherGPRScommunicationapplications.

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3.

3.Hardware

H ardware

Hardware

3.1.

3.1.Pin

P in

PinDescription

D escription

Description

3.1.1.

3.1.1.Outside

O utside

Outside

OutsideView

V iew

View

3.1.2.

3.1.2.Pin

P in

PinAssignment

A ssignment

Assignment

Assignment（Top

T op

Top

Top）

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3.1.3.

3.1.3.PCB

P CB

PCB

PCBLayout

L ayout

Layout

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3.1.4.

3.1.4.Pin

P in

PinDescription

D escription

Description

Note:‘P

’

forpower,‘I

’

forinput,‘O

’

foroutput,‘N

’

fornotconnect

Pin Name

Name

Name Type

Type

Type Description

Description

1VCCPPowersupply，3.4Vto4.2V

2VCCPPowersupply，3.4Vto4.2V

3GNDPPowerground

4GNDPPowerground

5ReloadIPull-down1srestoredefaultsetting,>3srestorefactorysetting

6NCNKeepnoconnecting

7RS485OControlRS485RX/TX

8NCNKeepnoconnecting

9ResetIRestart,pull-down1sforrestart

10GPRSOGPRSstatus,highforattached,lowfornotattached

11LINKAOSocketAstatus,highforconnected,lowfornotconnected

12LINKBOSocketBstatus,highforconnected,lowfornotconnected

13DATAODatastatus,highfortransmission,lowfornottransmission

14WORKORunningstatus,highfornormal,lowforfailure

15SHUTIShutdown,pull-downforshutmodule

16NCNKeepnoconnecting

17GNDPPowerground

18SPEAKER-OSpeakernegativeterminal

19SPEAKER+OSpeakerpositiveterminal

20MIC-IMicrophonenegativeterminal

21MIC+IMicrophonepositiveterminal

22VSIMPPowersupplyforSIMcard

23SIM_CLKOClocklineforSIM

24SIM_DATI/ODatalineforSIM

25SIM_RSTOResetlineforSIM

26NCNKeepnoconnecting

27HST_TXDOUpgradefromuart

28HST_RXDIUpgradefromuart

29V_PADP2.8Voutput

30NCNKeepnoconnecting

31NCNKeepnoconnecting

32NCNKeepnoconnecting

33NCNKeepnoconnecting

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34NCNKeepnoconnecting

35TXD1OTXlineforuart1

36RXD1IRXlineforuart1

37CTS1OCTSlineforuart1

38RTS1IRTSlineforuart1

39GNDPPowerground

40GNDPPowerground

41RFORFoutput

42GNDPPowerground

3.1.5.

3.1.5.Outside

O utside

Outside

OutsideAntenna

A ntenna

Antenna

1.ThelineofAntennashouldbeshorttomaketheinsertlosslowerandroutedasRF

linestrictlytokeep50ohmmatching.

2.It

’

sbettertoputtheantennapadontheedgeofthePCB.

3.2.

3.2.Hardware

H ardware

Hardware

HardwareB

B

Block

l ock

lock

lockD

D

Diagram

i agram

iagram

Theinterfacemoduleprovidesincludes:powerinput,output,on/offcontrol,resettorestart

control,control,restorethefactorySettings,workingmodule,analogaudioinput,output,UART,

SIM,RFantenna.

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4.

4.Module

M odule

Module

ModuleFunctions

F unctions

Functions

4.1.

4.1.Work

W ork

Work

WorkMode

M ode

Mode

USR-GM3/GM3smodulecanworkin3modes

SMSmessagetransmissionmode

networktransmissionmode

HTTPDmode

4.1.1.

4.1.1.Switching

S witching

Switching

SwitchingWork

W ork

Work

WorkMode

M ode

Mode

Choosebybuttonyouwanttoworkmode

Andthenselectsaveallparameters

Cansavethedefaultparametersfortheuser,clickontherestartaftereffectiveworking

mode.

Note:ifyoucan'tfindtheabovetoolbuttonspleaserefertothepicture'spositiononthe

drive,youcanseethehiddenbutton

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4.1.2.

4.1.2.Network

N etwork

Network

Networktransmission

t ransmission

transmission

4.1.2.1.

4.1.2.1.Description

D escription

Description

Underthismode,customer

’

sserialdevicecansenddatatoTCPorUDPserverviathis

module,Modulecanalsoreceivedatafromserver,andtransmitthedatatocustomer

’

s

serialdevice.

Customersdon’tneedtoknowthedetailofcommunication,justneedsomesimplesetting.

GM3support2sockets,socket

A

andsocketB,theyarestandalonewitheachother.GM3

onlysupportsTCPClientandUDPClient.

4.1.2.2.

4.1.2.2.Application

A pplication

Application

ApplicationScenarios

S cenarios

Scenarios

Ifuserwanttomakecommunicationbetweenserialdevicesanddevicesonthenetwork,

butintheplacewhereserialdevicestaysusingroutertoconnecttonetworkisnot

convenientforuser.Butsignalfrombasestationisavailable,soGM3modulecanbuilda

bridgebetweenserialdeviceanddevicesonthenetwork.

4.1.2.3.

4.1.2.3.Usage

U sage

Usage

Note:Allthe

AT

commandsterminatewithcarriagereturn(0x0D),weignoreithere.

Abouthowtouse

AT

commands,pleaserefertochapter5.

Wehaveonesoftwareforcustomerstouse,customerscangetitfromour

website:http://www.usriot.com/Download/248.html.

http://www.usriot.com/Download/248.html.

Andwehaveonesoftwareforcustomerstodoserialandnetworktests,customerscanget

itfromourwebsite:http://www.usriot.com/Product/78.html

h ttp://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html.

TCP/UDP

data

SerialdataGM3

TCP/UDP

data

Internet

PC

Serialdevice

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1.SetTCPserversoftware,loginremoteserverviaremotedesktopconnection.

Thenopennetworktestsoftware,settheparametersasthebellowing.

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2.SetModuleParameters

1)Setworkmodeasnetworktransmission

2)EnablesocketA

3)Setsocket

A

asTCPclient,serveraddressistest.usr.cn(domain),serverportis10000.

3.RestartGM3,waittheconnectionofsocket

A

hasbeenestablished,senddatato

moduleviaserialport,thenyouwillgetdataatnetworkserversoftware.Andsenddata

tomodulevianetwork,thenthedatawillbegotatmoduleserialport.

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4.1.2.4.

4.1.2.4.Special

S pecial

Special

SpecialType

T ype

Type

TypeOf

O f

Of

OfSending

S ending

Sending

SendingCommand

C ommand

Command

Besidesunder“

AT

commandmode”,customerscanalsosendAtcommandsundernetwork

transmissionmodeviaserialornetwork.Thiskindofcommandsisdifferentfromcommonones,

customersshouldaddcommandpasswordand#atthefrontofcommoncommandstring,.

Note:everycommandstringshouldterminatewithcarriagereturn.Hereweuse[0D].

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4.1.2.4.1.

4.1.2.4.1.Serial

S erial

Serial

AT

A T

AT

Command

C ommand

Command

1.Setworkmodeasnetworktransmission.

2.Enableserialcommandfunction.

3.Querycommandpassword.

Aftersettingsuccessful,restartGM3,thensend“usr.cn#AT+VER”viaserial.

ThenGM3willrespondthefirmwareversion.

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4.1.2.4.2.

4.1.2.4.2.Network

N etwork

Network

AT

A T

AT

command

c ommand

command

1.Enablenetworkcommandfunction.

2.Querycommandpassword.

Besides,customersneedtoconfiguresocket

A

orsocketBfornetworkconnection,referto

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chapter4.1.2.3.Aftersettingsuccessful,restartGM3.Whenconnectionisestablishing,

send“usr.cn#AT+VER”fromnetwork.

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4.1.3.

4.1.3.HTTPD

H TTPD

HTTPD

HTTPDFunction

F unction

Function

4.1.3.1.

4.1.3.1.Description

D escription

Description

Underthismode,customer

’

sserialdevicecanrequestdatafromHTTPserverviathis

module,ModulecanalsoreceivedatafromHTTPserver,analysisthedataandtransmitthe

datatocustomer

’

sserialdevice.

Customersdon’tneedtoknowthedetailofcommunication,justneedsomesimplesetting.

4.1.3.2.

4.1.3.2.Application

A pplication

Application

ApplicationScenarios

S cenarios

Scenarios

IfcustomerwanttorequestdatafromHTTPserver,andcustomer

’

sserialdevicecan’t

connecttoInternetviaarouter.Butsignalfrombasestationisavailable,socustomercan

useGM3moduletomakethiscommunication.Customerjustneedtodosomesimple

setting,andsendrequestdata.GM3couldgettheresultfromHTTPserver,andanalysisit

togettheusefuldata,sendthedatatoserialdevice.

4.1.3.3.

4.1.3.3.Usage

U sage

Usage

Note:Allthe

AT

commandsterminatewithcarriagereturn(0x0D),weignoreithere.

Abouthowtouse

AT

commands,pleaserefertochapter5.

Wehaveonesoftwareforcustomerstouse,customerscangetitfromour

website:http://www.usriot.com/Download/248.html.

http://www.usriot.com/Download/248.html.

Andwehaveonesoftwareforcustomerstodoserialandnetworktests,customerscanget

HTTP

data

SerialdataGM3

HTTP

data

Internet

HTTP

server

Serialdevice

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itfromourwebsite:http://www.usriot.com/Product/78.html

h ttp://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html.

1.Setting

1)SetworkmodeasHTTPD.

2)SetrequesttypeasGET.

3)SettheaddressofHTTPserveras“www.usr.cn”,andsetserverportas80.

4)SettherequestURLas”/1.php?”

5)Setrequestheadstring.

”

”Accept:text/html[0D][0A]Accept-Language:zh-CN[0D][0A]User-Age

A ccept:text/html[0D][0A]Accept-Language:zh-CN[0D][0A]User-Age

Accept:text/html[0D][0A]Accept-Language:zh-CN[0D][0A]User-Age

Accept:text/html[0D][0A]Accept-Language:zh-CN[0D][0A]User-Agent:

n t:

nt:

Mozilla/5.0[0D][0A]Connection:

Mozilla/5.0[0D][0A]Connection:Keep-Alive[0D][0A]

K eep-Alive[0D][0A]

Keep-Alive[0D][0A]

Keep-Alive[0D][0A]”

”

NOTE:

[0D]meanscarriagereturn,itis0x0Dinhexnumber.[0A]meanslinefeed,itis

0x0Ainhexnumber.Becausethiskindofdataisnotabletobeputinto

AT

commands

string,soitistropical.Theruleistwobytesin[]meansonebyteinhexform.

Forexample,

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“[0D]”meanscarriagereturn,0x0Dinhexnumber.

“[20]”meansspace,0x20inhexnumber.

2.Restartmodule,thensend“data=www.usr.cn”toHTTPserverviaserialport，youwill

get[www.usr.cn]fromserver.

NOTE:theserver“www.usr.cn”isUSR

’

sHTTPtestserver,ifyousend

“data=www.usr.cn”toit,itwillfeedbackthedataafter“=”with“[]”including.

Inthestep1,serialdevicesend“data=www.usr.cn”toGM3,thenGM3preparesHTTP

packagewithheadinformationsetbefore,sothepackagedatais:

GET/1.php?data=www.usr.cnHTTP/1.1

Host:www.usr.cn

Accept:text/html

Accept-Language:zh-CN

User-Agent:Mozilla/5.0

Connection:Keep-Alive

After

Aftersending

s ending

sending

sendingdata,

d ata,

data,

data,GM3

G M3

GM3

GM3receives

r eceives

receives

receivesdata:

d ata:

data:

HTTP/1.1200OK

Date:Wed,24Jun201504:08:35GMT

Server:Apache/2.0.63(Win32)mod_ssl/2.0.65OpenSSL/0.9.8oPHP/5.2.14

X-Powered-By:PHP/5.2.14

Cache-Control:max-age=600

Expires:Wed,24Jun201504:18:35GMT

Content-Length:19

Keep-Alive:timeout=15,max=99

Connection:Keep-Alive

Content-Type:text/html

[www.usr.cn]

AfterGM3receivestheabovedata,itwillanalysistheinformation,andsendtheresultto

serialdevice.

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4.1.4.

4.1.4.SMS

S MS

SMS

SMSMessage

M essage

Message

MessageTransmission

T ransmission

Transmission

4.1.4.1.

4.1.4.1.Description

D escription

Description

Underthismode,customer

’

sserialdevicecansendSMSmessagetoacellphoneviathis

module,ModulecanalsoreceiveSMSmessagefromcellphone,andtransmitthemessage

inserialdatatocustomer

’

sserialdevice.

Customersdon’tneedtoknowthedetailofcommunication,justneedsomesimplesetting.

4.1.4.2.

4.1.4.2.Application

A pplication

Application

ApplicationScenarios

S cenarios

Scenarios

Ifuser

’

sdeviceisaserialdevice,itisplacedatremotearea.Userwantstocommunicate

withthisdevicebySMSmessage,tocheckwhatstatusthedeviceisin,ortocontrolthe

device.

4.1.4.3.

4.1.4.3.Usage

U sage

Usage

Note:Allthe

AT

commandsterminatewithcarriagereturn(0x0D),weignoreithere.

Abouthowtouse

AT

commands,pleaserefertochapter5.

Wehaveonesoftwareforcustomerstouse,customerscangetitfromour

website:http://www.usriot.com/Download/248.html.

http://www.usriot.com/Download/248.html.

Andwehaveonesoftwareforcustomerstodoserialandnetworktests,customerscanget

itfromourwebsite:http://www.usriot.com/Product/78.html

h ttp://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html

http://www.usriot.com/Product/78.html.

SMS

Serialdata

GM3

Basestation

cell

phone

Serial

Device

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1.Setting

1)Setthedestinationphonenumber.

2)SetworkmodeasSMSmessagetransmission.

2.Resetmodule,andsendmessagetomoduleviaserialport,thenyouwillgetthe

messageonyourcellphone.Thensendamessagebacktomodule,thenyouwillget

themessagefrommodule

’

sserialport.

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4.1.4.4.

4.1.4.4.SMS

S MS

SMS

AT

A T

AT

Command

C ommand

Command

Note:everycommandstringshouldterminatewithcarriagereturn.Hereweuse[0D].

1.Querycommandpassword.

Besides,customersneedtoconfigureSMSmessagetransmission,refertochapter4.1.4.3.

Aftersettingsuccessful,restartGM3.send“usr.cn#AT+VER”toGM3fromcellphone,then

thenyouwillgetresponsefromGM3.

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4.2.

4.2.Register

R egister

Register

RegisterPackage

P ackage

Package

4.2.1.

4.2.1.Description

D escription

Description

Undernetworktransmissionmode,customerscansendRegisterPackage,RegisterPackageis

usedtomakeserverknowwhatdeviceissendingdata,orasapassword.Customerscan

choosetosendregisterpackagetonetworkserver,orserialdevice.RegisterPackagecouldbe

sentwhennetworkconnectionisestablished,orastheheadofeveryTCP/UDPpackage.The

typeofregisterpackagecouldbeICCID,IMEI,oruser-defineddata.

4.2.2.

4.2.2.Usage

U sage

Usage

1.Enablesendingregisterpackage.

2.Setthetypeofregisterpackagedata.forinstance,usinguser-defineddata.

3.Setuser-definedregisterdata,forinstance,setdataasstring“www.usr.cn”,youneedto

convertittohexstring“7777772E7573722E636E”.

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4.Setsendingtype,forinstance,senddatawhenconnectionisestablished.

Besides,customersneedtoconfiguresocket

A

orsocketBfornetworkconnection,referto

chapter4.1.2.3.Aftersettingsuccessful,restartGM3.Whenconnectionisestablishing,

GM3willsendstring“www.usr.cn”toserverviasocket

A

andsocketB.

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4.3.

4.3.Heart

H eart

Heart

HeartBeat

B eat

Beat

BeatPackage

P ackage

Package

4.3.1.

4.3.1.Description

D escription

Description

Undernetworktransmissionmode,customerscansendHeartBeatPackagetonetworkserver

orserialdevice.

Sendingheartbeatdatatonetworkserver,isusedtocheckifconnectionisalive.IfGM3sends

dataunsuccessfulfor3times,itwilltrytoreconnecttoserver.

Sendingheartbeatdatatoserialdevice,isusuallyusedtoqueryinformationfromserialdevice

insteadofsendingquerycommandfromserver,

To

dothiscancutsomecommunicationflow.

4.3.2.

4.3.2.Usage

U sage

Usage

1.Enablesendingheartbeatpackage.

2.Setthedestinationofheartbeatpackagedata.forinstance,tonetworkserver.

3.Setheartbeatdata,forinstance,setdataasstring“www.usr.cn”,customerneedtoconvert

ittohexstring“7777772E7573722E636E”.

4.Setsendingperiod,forinstance,30seconds.

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Besides,customersneedtoconfiguresocket

A

orsocketBfornetworkconnection,referto

chapter4.1.2.3.Aftersettingsuccessful,restartGM3.Whenconnectionisestablishing,If

deviceisidlefor30seconds,GM3willsendstring“www.usr.cn”toserverviasocket

A

and

socketB.

4.4.

4.4.UART

U ART

UART

4.4.1.

4.4.1.RS485

R S485

RS485

4.4.1.1.

4.4.1.1.Description

D escription

Description

GM3modulesupportsRS485function.RS485ishalfduplex,thedirectionoftransmittingdata

shouldbecontrolledmanually.Ifcustomerenablesmodule

’

sRS485function,thepin7of

moduleisusedtocontrolthedirectionofcommunication.

RefertocommandAT+UART

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4.4.1.2.

4.4.1.2.RS485

R S485

RS485

RS485Reference

R eference

Reference

ReferenceCircuit

C ircuit

Circuit

4.4.2.

4.4.2.Similar

S imilar

Similar

SimilarRFC2217

R FC2217

RFC2217

4.4.2.1.

4.4.2.1.Description

D escription

Description

ThisfunctionissimilartoRFC2217.Customercanchangetheparametersofserialport

dynamicallyvianetwork.Thismodificationistemporary,whenmodulerestarts,the

parameterschangedwillreturnbacktopreviousvalues.

4.4.2.2.

4.4.2.2.Definition

D efinition

Definition

Definitionof

o f

of

ofsimilar

s imilar

similar

similarRFC2217

R FC2217

RFC2217

Thisprotocolcontains8bytes,detailsasthefollowingform

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Interpretationofbitsparameters

BitsInterpretationValueDescription

1:0Databits

00NotUsed

01NotUsed

107

11

8

2Stopbits01

12

3Enable/disableparity0disable

1enable

5:4Paritytype

00ODD

01EVEN

10NotUsed

11

NotUsed

7:6Nodefined00NotUsed

5.

5.Parameters

P arameters

Parameters

ParametersSetting

S etting

Setting

Sending

AT

commandsistheonlywaytosettheparametersofGM3module.Therearetwo

kindsofcommands,basic

AT

commandsandextended

AT

commands.

ItemHeadBaudRateBitsParametersCheckSum

bytes3311

interpretationFixed

dataMSBRefertothe

followingtable

SumofBaudRate

andBitsParameters

Exmaple1

(115200,N,8,1)55AA5501C2008346

Exmaple2

(9600,N,8,1)55AA550025808328

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Basic

AT

commandsareusedtosettingtherunningparametersofGM3underSMS

messagetransmission,networktransmissionandHTTPDmodes.

Extended

AT

commandsareusedtodesignnewfunctionsbycustomers.Abouthowtouse

extended

AT

command,pleasereferto“GM3extended

AT

commandsUserGuide”.

5.1.

5.1.Operating

O perating

Operating

AT

A T

AT

command

c ommand

command

WhenGM3worksinoneofthethreemodes:SMSmessagetransmission,network

transmissionorHTTPDmode.

You

cangetmoduleinto“commandmode”bysending

specifictimingdatatoit,thensendcommandstochangemodule

’

srunningparameters.If

changingisdone,getmodulebacktopreviousworkmode.

Intheabovefigure,abscissaaxismeanstime,thedataabovetimeaxisissenttomodule

fromdevice,andthedatabellowtimeaxisissenttodevicefrommodule.

timerequirement:

T1>200ms

T2<50ms

T3<50ms

T5<3s

Go

Gointo

i nto

into

intocommand

c ommand

command

commandmode:

m ode:

mode:

1.ModuleisinSMSmessagetransmission,networktransmissionorHTTPDmode.

2.Devicesend“+++”tomodule,thenmodulesend‘a

’

todevice.

T7 T5

T1T2

T4

T3

T6

Sendingdatatodevice

TIME

T IME

TIME

+

Sendingdatatomodule

+

a

+ok

AT+ENTM

OK

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3.Ifdevicereceives‘a’,itmustsend‘a

’

tomodulewithin3seconds.

4.Modulereceives‘a’,andsends“+ok”todevice.

5.Devicereceives“+ok”,itmeansmodulehasgonetotemporarycommandmode,so

devicecansend

AT

commandstomodule.

Back

B ack

Back

Backto

t o

to

toprevious

p revious

m ode:

mode:

1.Devicesendcommand“AT+ENTM”tomodule.

2.Modulereceives“AT+ENTM”,andsend“OK”todevice.

3.Devicereceives“OK”,itmeansmodulehasgonebacktopreviousmode.

5.2.

AT

A T

AT

Command

C ommand

Command

CommandFormat

F ormat

Format

AT

commandsworkinasking-answeringmode,“asking”meansdevicesendscommandsto

module,“answering”meansmodulerespondstodevice.

Symbol

SymbolDescription:

D escription:

Description:

<>contentinsideisnecessary.

[]contentinsideisnotnecessary.

{}range,forexample,A~Bmeanstherangeisfrom

A

toB.

~carriagereturn,hexnumberis0D.

CMDcommandcode

OPoperator

PARAparameter

CRcarriagereturn

LFlinefeed

1)

1)The

T he

The

Theformat

f ormat

format

formatof

o f

of

ofasking

a sking

asking

Command

Commandstring:

s tring:

string:

string:<AT+>[CMD][OP][PARA]<CR>

< AT+>[CMD][OP][PARA]<CR>

<AT+>[CMD][OP][PARA]<CR>

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Type

T ype

Type

Typeof

o f

of

ofcommand

c ommand

command

type

type Command

Command

Commandstring

s tring

string

string description

description

0AT+{CMD}?{CR}queryparameters

1AT+{CMD}=?{CR}Querythevalueofparameter

2AT+{CMD}{CR}executeactionorqueryparameters

3AT+{CMD}={PARAM}{CR}Setthevalueofparameter

2)

2)The

T he

The

Theformat

f ormat

format

formatof

o f

of

ofanswering

a nswering

answering

Therearetwokindsofresponse,withorwithoutecho.

Allthefollowingsareusingwithoutechoasexamples.

Command

Commandstring:

s tring:

string:

string:[CR][LF][+CMD][OP][PARA][CR][LF]<CR><LF>[OK]<CR><LF>

[ CR][LF][+CMD][OP][PARA][CR][LF]<CR><LF>[OK]<CR><LF>

[CR][LF][+CMD][OP][PARA][CR][LF]<CR><LF>[OK]<CR><LF>

Type

T ype

Type

Typeof

o f

of

ofcommand

c ommand

command

type

type Command

Command

Commandstring

s tring

string

string description

description

0<CR><LF><OK><CR><LF>successful

1<CR><LF><+CMD:><PARA><CR><LF><CR><LF><OK><CR><LF>returnparameter

Code

Code meaning

meaning

meaning necessary

necessary

AT+

AT

commandheadYes

CMDpurposeofcommandYes

OPactiontypeofcommandNo

PARAparametersofcommandNo

CRterminationofcommandYes

Code

Code meaning

meaning

meaning necessary

necessary

CRcarriagereturnNo

LFlinefeedNo

+CMDresponseheadNo

OPoperatorNo

PARAparameterNo

CRcarriagereturnNo

LFlinefeedNo

CRcarriagereturnYes

LFlinefeedYes

OKoperatingsuccessfulNo

CRcarriagereturnYes

LFlinefeedYes

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5.3.

AT

A T

AT

Command

C ommand

Command

CommandSet

S et

Set

NO.

NO. command

command

command description

description

Management

Managementcommands

c ommands

commands

1Hhelpmessage

2Zrestart

3Equeryandsetenable/disableecho

4ENTMquitfromcommandmode

5WKMODqueryorsetworkmode

6CALENqueryorsetifallowtocall

7NATENqueryorsetenable/disablenetworkcommand

8UATENqueryorsetenable/disableserialportcommand

9CMDPWqueryorsetcommandpassword

10CACHENqueryorsetenable/disabledatacache

11

STMSGqueryorsetwelcomemessage

Configuration

Configurationcommands

c ommands

commands

12SSavecurrentsettings

13RELDrestoredefaultsettings

14CLEARrestorefactorysettings

15CFGTFsavecurrentsettingasdefaultsetting

Query

Queryinformation

i nformation

information

informationcommands

c ommands

commands

16VERqueryfirmwareversion

17SNquerySNcode

18ICCIDqueryCCIDcode

19IMEIqueryIMEIcode

20CNUMquerytheMSISDNrelatedtothesubscriber

UART

UARTparameters

p arameters

parameters

parameterscommands

c ommands

commands

21UARTqueryorsetserialportparameters

22RFCENqueryorsetenable/disablesimilarRFC2117

Socket

Socketparameters

p arameters

parameters

parameterscommands

c ommands

commands

23APNqueryorsetAPNcode

24SOCKAqueryorsetsocket

A

parameters

25SOCKBqueryorsetsocketBparameters

26SOCKAENqueryorsetenable/disablesocketA

27SOCKBENqueryorsetenable/disablesocketB

28SOCKASLqueryorsetsocket

A

longorshortconnection

29SOCKBSLqueryorsetsocketBlongorshortconnection

30SOCKALKquerysocket

A

connectionstatus

31SOCKBLKquerysocketBconnectionstatus

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Register

Registerpackage

p ackage

package

packageparameters

p arameters

parameters

parameterscommands

c ommands

commands

32REGENqueryorsetregisterpackagetype

33REGTPqueryorsetregisterpackagedatatype

34REGIDqueryorsetregisterID（usedforD2D）

35REGDTqueryorsetregisteruser-defineddata

36REGSNDqueryorsetregisterpackagesendingtype

Heartbeat

Heartbeatpackage

p ackage

package

packageparameters

p arameters

parameters

parameterscommands

c ommands

commands

37HEARTENqueryorsetenable/disableheartbeat

38HEARTDTqueryorsetheartbeatdata

39HEARTTPqueryorsetheartbeatpackagesendingtype

40HEARTTMqueryorsetheartbeattime

HTTPD

HTTPDparameters

p arameters

parameters

parameterscommands

c ommands

commands

41HTPTPqueryorsetHTTPrequesttype

42HTPURLqueryorsetHTTPURL

43HTPSVqueryorsetHTTPserveraddressandport

44HTPHDqueryorsetHTTPrequesthead

SMS

SMSmessage

m essage

message

messageparameters

p arameters

parameters

parameterscommands

c ommands

commands

45DSTNUMqueryorsetdestinationphonenumber

46SMSENDsendSMSmessage

1)AT+H

function:helpmessage.

format:

query:

AT+H{CR}

A T+H{CR}

AT+H{CR}

{CR}{LF}help

{CR}{LF}helpmessage{CR}{LF}{CR}{LF}OK{CR}{LF}

m essage{CR}{LF}{CR}{LF}OK{CR}{LF}

message{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

helpmessage:commandsintroduction。

2)AT+Z

function:restart。

format:

AT+Z{CR}

{CR}{LF}OK{CR}{LF}

3)AT+E

function:queryandsetenable/disableecho.

format:

Queryparameterintroductions:

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AT+E=?{CR}

A T+E=?{CR}

AT+E=?{CR}

{CR}{LF}+E:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+E{CR}

AT+E{CR}or

o r

or

orAT+E?{CR}

A T+E?{CR}

AT+E?{CR}

{CR}{LF}+E:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+E=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisableecho

“on”:enable

“off”:disable

4)AT+ENTM

function:quitfromcommandmode.

format:

setting:

AT+ENTM{CR}

{CR}{LF}OK{CR}{LF}

5)AT+WKMOD

function:queryorsetworkmode.

format:

queryparameterintroductions:

AT+WKMOD=?{CR}

{CR}{LF}+WKMOD:<"CMD","SMS","NET","HTTPD">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+WKMOD{CR}

A T+WKMOD{CR}

AT+WKMOD{CR}

AT+WKMOD{CR}or

o r

or

orAT+WKMOD?{CR}

A T+WKMOD?{CR}

AT+WKMOD?{CR}

{CR}{LF}+WKMOD:mode{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�setparameter:

AT+WKMOD=mode{CR}

{CR}{LF}OK{CR}{LF}

parameter:

mode:workmode

“CMD”:ATcommandmode

“SMS”:SMSmessagetransmissionmode

“NET”:networktransmissionmode

“HTTPD”:HTTPDmode

6)AT+CALEN

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function:queryorsetifallowtocall.

format:

queryparameterintroductions:

AT+CALEN=?{CR}

A T+CALEN=?{CR}

AT+CALEN=?{CR}

{CR}{LF}+CALEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+CALEN{CR}

AT+CALEN{CR}or

o r

or

orAT+CALEN?{CR}

A T+CALEN?{CR}

AT+CALEN?{CR}

{CR}{LF}+CALEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+CALEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisablecall

“on”:enable

“off”:disable

7)AT+NATEN

function:queryorsetenable/disablenetworkcommand.

format:

queryparameterintroductions:

AT+NATEN=?{CR}

{CR}{LF}+NATEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+NATEN{CR}

AT+NATEN{CR}or

o r

or

orAT+NATEN?{CR}

A T+NATEN?{CR}

AT+NATEN?{CR}

{CR}{LF}+NATEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+NATEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisablenetworkcommand

“on”:enable

“off”:disable

8)AT+UATEN

function:queryorsetenable/disableserialportcommand

format:

queryparameterintroductions:

AT+UATEN=?{CR}

{CR}{LF}+UATEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+UATEN{CR}

AT+UATEN{CR}or

o r

or

orAT+UATEN?{CR}

A T+UATEN?{CR}

AT+UATEN?{CR}

{CR}{LF}+UATEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

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setparameter:

AT+UATEN=status{CR}

A T+UATEN=status{CR}

AT+UATEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisableserialportcommand.

“on”:enable

“off”:disable

9)AT+CMDPW

function:queryorsetcommandpassword

format:

queryparameterintroductions:

AT+CMDPW=?{CR}

{CR}{LF}+CMDPW:<"password">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+CMDPW{CR}

AT+CMDPW{CR}or

o r

or

orAT+CMDPW?{CR}

A T+CMDPW?{CR}

AT+CMDPW?{CR}

{CR}{LF}+CMDPW:password{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+CMDPW=password{CR}

{CR}{LF}OK{CR}{LF}

parameter:

password:commandpassword

10)AT+CACHEN

function:queryorsetenable/disabledatacache.

format:

queryparameterintroductions:

AT+CACHEN=?{CR}

{CR}{LF}+CACHEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+CACHEN{CR}

AT+CACHEN{CR}or

o r

or

orAT+CACHEN?{CR}

A T+CACHEN?{CR}

AT+CACHEN?{CR}

{CR}{LF}+CACHEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+CACHEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enable/disabledatacache.

“on”:enable

“off”:disable

11)AT+STMSG

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function:queryorsetwelcomemessage.

format:

queryparameterintroductions:

AT+STMSG=?{CR}

A T+STMSG=?{CR}

AT+STMSG=?{CR}

{CR}{LF}+STMSG:<"welcome

{CR}{LF}+STMSG:<"welcomemessage">{CR}{LF}{CR}{LF}OK{CR}{LF}

m essage">{CR}{LF}{CR}{LF}OK{CR}{LF}

message">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+STMSG{CR}

AT+STMSG{CR}or

o r

or

orAT+STMSG?{CR}

A T+STMSG?{CR}

AT+STMSG?{CR}

{CR}{LF}+STMSG:message{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+STMSG=message{CR}

{CR}{LF}OK{CR}{LF}

parameter:

message:welcomemessage，whenmodulepowersup,itwillshowthem,thiscanbe

usedtocheckifmodulestartsupnormally.

12)AT+S

function:savecurrentsettings.

format:

setting:

AT+

AT+S

S

S{CR}

{ CR}

{CR}

{CR}{LF}OK{CR}{LF}

13)AT+RELD

function:restoredefaultsettings.

format:

setting:

AT+RELD{CR}

{CR}{LF}OK{CR}{LF}

14)AT+CLEAR

function:restorefactorysettings.

format:

setting:

AT+CLEAR{CR}

{CR}{LF}OK{CR}{LF}

15)AT+CFGTF

function:savecurrentsettingasdefaultsetting.

format:

setting:

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AT+CFGTF{CR}

A T+CFGTF{CR}

AT+CFGTF{CR}

{CR}{LF}OK{CR}{LF}

16)AT+VER

function:queryversion.

format:

querycurrentvalueofparameter:

AT+VER{CR}

AT+VER{CR}or

o r

or

orAT+VER?{CR}

A T+VER?{CR}

AT+VER?{CR}

{CR}{LF}+VER:version{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

version:firmwareversion

17)AT+SN

function:querySNcode.

format:

querycurrentvalueofparameter:

AT+SN{CR}

AT+SN{CR}or

o r

or

orAT+SN?{CR}

A T+SN?{CR}

AT+SN?{CR}

{CR}{LF}+SN:code{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

code:SNcode

18)AT+ICCID

function:queryICCIDcode.

format:

querycurrentvalueofparameter:

AT+ICCID{CR}

AT+ICCID{CR}or

o r

or

orAT+ICCID?{CR}

A T+ICCID?{CR}

AT+ICCID?{CR}

{CR}{LF}+ICCID:code{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

code:ICCIDcode

19)AT+IMEI

function:queryIMEIcode.

format:

querycurrentvalueofparameter:

AT+IMEI{CR}

AT+IMEI{CR}or

o r

or

orAT+IMEI?{CR}

A T+IMEI?{CR}

AT+IMEI?{CR}

{CR}{LF}+IMEI:code{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

code:IMEIcode

20)AT+CNUM

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited44/55tec@usr.cn

function:querytheMSISDNrelatedtothesubscriber.

format:

querycurrentvalueofparameter:

AT+CNUM{CR}

A T+CNUM{CR}

AT+CNUM{CR}

AT+CNUM{CR}or

o r

or

orAT+CNUM?{CR}

A T+CNUM?{CR}

AT+CNUM?{CR}

{CR}{LF}+CNUM:phone

{CR}{LF}+CNUM:phonenumber{CR}{LF}{CR}{LF}OK{CR}{LF}

n umber{CR}{LF}{CR}{LF}OK{CR}{LF}

number{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

�

�phonenumber:phonenumber

21)AT+UART

function:queryorsetserialportparameters.

format:

queryparameterintroductions:

AT+UART=?{CR}

{CR}{LF}+UART:<2400,4800,9600,14400,19200,28800,33600,38400,57600,115200,

230400,460800,921600>,<"NONE","ODD","EVEN">,<7,8>,<1,2>,<"NONE","CRTS",

"RS485">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+UART{CR}

AT+UART{CR}or

o r

or

orAT+UART?{CR}

A T+UART?{CR}

AT+UART?{CR}

{CR}{LF}+UART:baud,parity,data

{CR}{LF}+UART:baud,parity,databit,stop

b it,stop

bit,stop

bit,stopbit,flow

b it,flow

bit,flow

control{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+UART=baud,parity,data

AT+UART=baud,parity,databit,stop

b it,stop

bit,stop

bit,stopbit,flow

b it,flow

bit,flow

bit,flowcontrol{CR}

c ontrol{CR}

control{CR}

{CR}{LF}OK{CR}{LF}

parameter:

baud:baudrate

2400,4800,9600,14400,19200,28800,33600,38400,57600,115200,230400,460800,921

600

parity:

“NONE”:noparity

“ODD”:oddparity

“EVEN”:evenparity

databit:

7:7databits

8:8databits

flowcontrol:

“NONE”:noflowcontrol

“CRTS”:useRTS/CTSforflowcontrol

“RS485”:useRS485function

22)AT+RFCEN

function:queryorsetenable/disablesimilarRFC2117.

format:

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited45/55tec@usr.cn

queryparameterintroductions:

AT+RFCEN=?{CR}

A T+RFCEN=?{CR}

AT+RFCEN=?{CR}

{CR}{LF}+RFCEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+RFCEN{CR}

AT+RFCEN{CR}or

o r

or

orAT+RFCEN?{CR}

A T+RFCEN?{CR}

AT+RFCEN?{CR}

{CR}{LF}+RFCEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+RFCEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enable/disablesimilarRFC2117

“on”:enable

“off”:disable

23)AT+APN

function:queryorsetAPNcode.

format:

queryparameterintroductions:

AT+APN=?{CR}

{CR}{LF}+APN:<"code">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+APN{CR}

AT+APN{CR}or

o r

or

orAT+APN?{CR}

A T+APN?{CR}

AT+APN?{CR}

{CR}{LF}+APN:code{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+APN=code{CR}

{CR}{LF}OK{CR}{LF}

parameter:

code

code

code:APNcode

24)AT+SOCKA

function:queryorsetsocket

A

parameters.

format:

queryparameterintroductions:

AT+SOCKA=?{CR}

A T+SOCKA=?{CR}

AT+SOCKA=?{CR}

{CR}{LF}+SOCKA:<"TCP","UDP">,<"address">,<port>{CR}{LF}{CR}{LF}OK{CR}{

LF}

querycurrentvalueofparameter:

AT+SOCKA{CR}

AT+SOCKA{CR}or

o r

or

orAT+SOCKA?{CR}

A T+SOCKA?{CR}

AT+SOCKA?{CR}

{CR}{LF}+SOCKA:protocol,address,port{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKA=protocol,address,port{CR}

{CR}{LF}OK{CR}{LF}

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited46/55tec@usr.cn

parameter:

protocol:communicationprotocol

“TCP”:TCP

“UDP”:UDP

address:serveraddress,IPordomainname

port:serverport，1~65535

25)AT+SOCKB

function:queryorsetsocketBparameters.

format:

queryparameterintroductions:

AT+SOCKB=?{CR}

A T+SOCKB=?{CR}

AT+SOCKB=?{CR}

{CR}{LF}+SOCKB:<"TCP","UDP">,<"address">,<port>{CR}{LF}{CR}{LF}OK{CR}{

LF}

querycurrentvalueofparameter:

AT+SOCKB{CR}

AT+SOCKB{CR}or

o r

or

orAT+SOCKB?{CR}

A T+SOCKB?{CR}

AT+SOCKB?{CR}

{CR}{LF}+SOCKB:protocol,address,port{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKB=protocol,address,port{CR}

{CR}{LF}OK{CR}{LF}

parameter:

protocol:communicationprotocol

“TCP”:TCP

“UDP”:UDP

address:serveraddress,IPordomainname

port:serverport，1~65535

26)AT+SOCKAEN

function:queryorsetenable/disablesocketA.

format:

queryparameterintroductions:

AT+SOCKAEN=?{CR}

{CR}{LF}+SOCKAEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+SOCKAEN{CR}

AT+SOCKAEN{CR}or

o r

or

orAT+SOCKAEN?{CR}

A T+SOCKAEN?{CR}

AT+SOCKAEN?{CR}

{CR}{LF}+SOCKAEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKAEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisablesocketA

“on”:enable

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited47/55tec@usr.cn

“off”:disable

27)AT+SOCKBEN

function:queryorsetenable/disablesocketB.

format:

queryparameterintroductions:

AT+SOCKBEN=?{CR}

A T+SOCKBEN=?{CR}

AT+SOCKBEN=?{CR}

{CR}{LF}+SOCKBEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

�

�querycurrentvalueofparameter:

AT+SOCKBEN{CR}

AT+SOCKBEN{CR}or

o r

or

orAT+SOCKBEN?{CR}

A T+SOCKBEN?{CR}

AT+SOCKBEN?{CR}

{CR}{LF}+SOCKBEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKBEN=status{CR}

{CR}{LF}OK{CR}{LF}

{ CR}{LF}OK{CR}{LF}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisablesocketB.

“on”:enable

“off”:disable

28)AT+SOCKASL

function:queryorsetsocket

A

longorshortconnection.

format:

queryparameterintroductions:

AT+SOCKASL=?{CR}

{CR}{LF}+SOCKASL:<"short","long">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+SOCKASL{CR}

AT+SOCKASL{CR}or

o r

or

orAT+SOCKASL?{CR}

A T+SOCKASL?{CR}

AT+SOCKASL?{CR}

{CR}{LF}+SOCKASL:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKASL=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

type:connectionstyle

“short”:shortconnection

“long”:longconnection

29)AT+SOCKBSL

function:queryorsetsocketBlongorshortconnection.

format:

queryparameterintroductions:

AT+SOCKBSL=?{CR}

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited48/55tec@usr.cn

{CR}{LF}+SOCKBSL:<"short","long">{CR}{LF}{CR}{LF}OK{CR}{LF}

{ CR}{LF}+SOCKBSL:<"short","long">{CR}{LF}{CR}{LF}OK{CR}{LF}

{CR}{LF}+SOCKBSL:<"short","long">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+SOCKBSL{CR}

AT+SOCKBSL{CR}or

o r

or

orAT+SOCKBSL?{CR}

A T+SOCKBSL?{CR}

AT+SOCKBSL?{CR}

{CR}{LF}+SOCKBSL:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SOCKBSL=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

type:connectionstyle

“short”:shortconnection

“long”:longconnection

30)AT+SOCKALK

function:querysocket

A

connectionstatus.

format:

querycurrentvalueofparameter:

AT+SOCKALK{CR}

AT+SOCKALK{CR}or

o r

or

orAT+SOCKALK?{CR}

A T+SOCKALK?{CR}

AT+SOCKALK?{CR}

{CR}{LF}+SOCKALK:status{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

status:socketAconnectionstatus.

“connected”:connected

“disconnected”:disconnected

31)AT+SOCKBLK

function:querysocketBconnectionstatus.

format:

querycurrentvalueofparameter:

AT+SOCKBLK{CR}

AT+SOCKBLK{CR}or

o r

or

orAT+SOCKBLK?{CR}

A T+SOCKBLK?{CR}

AT+SOCKBLK?{CR}

{CR}{LF}+SOCKBLK:status{CR}{LF}{CR}{LF}OK{CR}{LF}

parameter:

status:socketBconnectionstatus.

“connected”:connected

“disconnected”:disconnected

32)AT+REGEN

function:queryorsetenable/disableregisterpackage.

format:

queryparameterintroductions:

AT+REGEN=?{CR}

{CR}{LF}+REGEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited49/55tec@usr.cn

AT+REGEN{CR}

A T+REGEN{CR}

AT+REGEN{CR}

AT+REGEN{CR}or

o r

or

orAT+REGEN?{CR}

A T+REGEN?{CR}

AT+REGEN?{CR}

{CR}{LF}+REGEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+REGEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enableordisableregisterpackage

“on”:enable

“off”:disable

33)AT+REGTP

function:queryorsetregisterpackagedatatype.

format:

queryparameterintroductions:

AT+REGTP=?{CR}

{CR}{LF}+REGTP:<"ICCID","IMEI","REGID","REGDT">{CR}{LF}{CR}{LF}OK{CR}{

LF}

querycurrentvalueofparameter:

AT+REGTP{CR}

AT+REGTP{CR}or

o r

or

orAT+REGTP?{CR}

A T+REGTP?{CR}

AT+REGTP?{CR}

{CR}{LF}+REGTP:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+REGTP=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

type:typeofregisterdata

“ICCID”:ICCIDcode

“IMEI”:IMEIcode

“REGID”:registerID(forD2Dfunction)

“REGDT”:user-defineddata

34)AT+REGID

function:queryorsetregisterID(usedforD2D).

format:

queryparameterintroductions:

AT+REGID=?{CR}

{CR}{LF}+REGID:<id>{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+REGID{CR}

AT+REGID{CR}or

o r

or

orAT+REGID?{CR}

A T+REGID?{CR}

AT+REGID?{CR}

{CR}{LF}+REGID:id{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+REGID=id{CR}

{CR}{LF}OK{CR}{LF}

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited50/55tec@usr.cn

parameter:

id:registerID

35)AT+REGDT

function:queryorsetregisteruser-defineddata.

format:

queryparameterintroductions:

AT+REGDT=?{CR}

A T+REGDT=?{CR}

AT+REGDT=?{CR}

{CR}{LF}+REGDT:<data>{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+REGDT{CR}

AT+REGDT{CR}or

o r

or

orAT+REGDT?{CR}

A T+REGDT?{CR}

AT+REGDT?{CR}

{CR}{LF}+REGDT:data{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+REGDT=data{CR}

{CR}{LF}OK{CR}{LF}

parameter:

data:user-definedregisterdata,hexstring,maxlengthis80bytes,

forexample,“7777772E7573722E636E”means“www.usr.cn”inASCII.

36)AT+REGSND

function:queryorsetregisterpackagesendingtype.

format:

queryparameterintroductions:

AT+REGSND=?{CR}

{CR}{LF}+REGSND:<"link","data","link&data">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+REGSND{CR}

AT+REGSND{CR}or

o r

or

orAT+REGSND?{CR}

A T+REGSND?{CR}

AT+REGSND?{CR}

{CR}{LF}+REGSND:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+REGSND=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

type:sendingtype

“link”:sendregisterdatawhensocketconnects

“data”:sendregisterdataastheheadofeveryTCP/UDPpackage

“link&data”:supportbothofabovetwoways

37)AT+HEARTEN

function:queryorsetenable/disableheartbeat.

format:

queryparameterintroductions:

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited51/55tec@usr.cn

AT+HEARTEN=?{CR}

A T+HEARTEN=?{CR}

AT+HEARTEN=?{CR}

{CR}{LF}+HEARTEN:<"on","off">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HEARTEN{CR}

AT+HEARTEN{CR}or

o r

or

orAT+HEARTEN?{CR}

A T+HEARTEN?{CR}

AT+HEARTEN?{CR}

{CR}{LF}+HEARTEN:status{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HEARTEN=status{CR}

{CR}{LF}OK{CR}{LF}

parameter:

status:enable/disableheartbeatfunction

“on”:enable

“off”:disable

38)AT+HEARTDT

function:queryorsetheartbeatdata.

format:

queryparameterintroductions:

AT+HEARTDT=?{CR}

{CR}{LF}+HEARTDT:<

{CR}{LF}+HEARTDT:<“

“

“data

d ata

data

data”

”

”>{CR}{LF}{CR}{LF}OK{CR}{LF}

> {CR}{LF}{CR}{LF}OK{CR}{LF}

>{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HEARTDT{CR}

AT+HEARTDT{CR}or

o r

or

orAT+HEARTDT?{CR}

A T+HEARTDT?{CR}

AT+HEARTDT?{CR}

{CR}{LF}+HEARTDT:data{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HEARTDT=data{CR}

{CR}{LF}OK{CR}{LF}

parameter:

data:heartbeatdata,hexstring,maxlengthis80bytes,

forexample,“7777772E7573722E636E”means“www.usr.cn”inASCII.

39)AT+HEARTTP

function:queryorsetheartbeatpackagesendingtype.

format:

queryparameterintroductions:

AT+HEARTTP=?{CR}

{CR}{LF}+HEARTTP:<"COM","NET">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HEARTTP{CR}

AT+HEARTTP{CR}or

o r

or

orAT+HEARTTP?{CR}

A T+HEARTTP?{CR}

AT+HEARTTP?{CR}

{CR}{LF}+HEARTTP:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HEARTTP=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited52/55tec@usr.cn

type:sendingtype

“COM”:senddatatoserialport

“NET”:senddatatonetwork

40)AT+HEARTTM

function:queryorsetheartbeattime.

format:

queryparameterintroductions:

AT+HEARTTM=?{CR}

A T+HEARTTM=?{CR}

AT+HEARTTM=?{CR}

{CR}{LF}+HEARTTM:<"time">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HEARTTM{CR}

AT+HEARTTM{CR}or

o r

or

orAT+HEARTTM?{CR}

A T+HEARTTM?{CR}

AT+HEARTTM?{CR}

{CR}{LF}+HEARTTM:time{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HEARTTM=time{CR}

{CR}{LF}OK{CR}{LF}

parameter:

time:strobeperiod，unitissecond

41)AT+HTPTP

function:queryorsetHTTPrequesttype.

format:

queryparameterintroductions:

AT+HTPTP=?{CR}

{CR}{LF}+HTPTP:<"GET","POST">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HTPTP{CR}

AT+HTPTP{CR}or

o r

or

orAT+HTPTP?{CR}

A T+HTPTP?{CR}

AT+HTPTP?{CR}

{CR}{LF}+HTPTP:type{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HTPTP=type{CR}

{CR}{LF}OK{CR}{LF}

parameter:

type:HTTPrequesttype

“GET”:get

“POST”:post

42)AT+HTPURL

function:queryorsetHTTPURL.

format:

queryparameterintroductions:

AT+HTPURL=?{CR}

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited53/55tec@usr.cn

{CR}{LF}+HTPURL:<"URL">{CR}{LF}{CR}{LF}OK{CR}{LF}

{ CR}{LF}+HTPURL:<"URL">{CR}{LF}{CR}{LF}OK{CR}{LF}

{CR}{LF}+HTPURL:<"URL">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HTPURL{CR}

AT+HTPURL{CR}or

o r

or

orAT+HTPURL?{CR}

A T+HTPURL?{CR}

AT+HTPURL?{CR}

{CR}{LF}+HTPURL:URL{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HTPURL=URL{CR}

{CR}{LF}OK{CR}{LF}

parameter:

URL:HTTPrequestURL

43)AT+HTPSV

function:queryorsetHTTPserveraddressandport.

format:

queryparameterintroductions:

AT+HTPSV=?{CR}

{CR}{LF}+HTPSV:<"address">,<port>{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HTPSV{CR}

AT+HTPSV{CR}or

o r

or

orAT+HTPSV?{CR}

A T+HTPSV?{CR}

AT+HTPSV?{CR}

{CR}{LF}+HTPSV:address,port{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HTPSV=address,port{CR}

{CR}{LF}OK{CR}{LF}

parameter:

address:serveraddress，IPordomainname

port:serverport，1~65535

44)AT+HTPHD

function:queryorsetHTTPrequesthead.

format:

queryparameterintroductions:

AT+HTPHD=?{CR}

{CR}{LF}+HTPHD:<"head">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+HTPHD{CR}

AT+HTPHD{CR}or

o r

or

orAT+HTPHD?{CR}

A T+HTPHD?{CR}

AT+HTPHD?{CR}

{CR}{LF}+HTPHD:head{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+HTPHD=head{CR}

{CR}{LF}OK{CR}{LF}

parameter:

head:HTTPrequesthead

USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited54/55tec@usr.cn

45)AT+DSTNUM

function:queryorsetdestinationphonenumber.

format:

queryparameterintroductions:

AT+DSTNUM=?{CR}

A T+DSTNUM=?{CR}

AT+DSTNUM=?{CR}

{CR}{LF}+DSTNUM:<"number">{CR}{LF}{CR}{LF}OK{CR}{LF}

querycurrentvalueofparameter:

AT+DSTNUM{CR}

AT+DSTNUM{CR}or

o r

or

orAT+DSTNUM?{CR}

A T+DSTNUM?{CR}

AT+DSTNUM?{CR}

{CR}{LF}+DSTNUM:number{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+DSTNUM=number{CR}

{CR}{LF}OK{CR}{LF}

parameter:

number:destinationphonenumberin“SMS”mode.

46)AT+SMSEND

function:sendSMSmessage.

format:

queryparameterintroductions:

AT+SMSEND=?{CR}

{CR}{LF}+SMSEND:<"number">,<1,2,3>,<"data">{CR}{LF}{CR}{LF}OK{CR}{LF}

setparameter:

AT+SMSEND=number,type,data{CR}

{CR}{LF}OK{CR}{LF}

parameter:

number:destinationphonenumber

type:codingscheme

1:ASCIIcoding，compressed

2:8bitscoding，notcompressed

3:UCS8coding

data:contentofSMSmessage

Appendix

AppendixA:

A :

A:

A:Contact

C ontact

Contact

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USR-GM3/GM3sUserManualwww.usriot.com

JinanUSRIOTTechnologyLimited55/55tec@usr.cn

Company:JinanUSRIOTTechnologyLimited

Address:Floor11,Building1,No.1166XinluoStreet,GaoxinDistric,Jinan,Shandong,250101China

Tel:86-531-55507297,86-531-88826739

Web:http://

h ttp://

http://

http://www.usr

w ww.usr

www.usr

www.usriot

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.

.com

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com

Support:http://h.usriot.com

http://h.usriot.com

Email:sales@usr.cn

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Appendix

AppendixB:

B :

B:

B:Disclaimer

D isclaimer

Disclaimer

ThisdocumentprovidesinformationaboutUSR-GM3/GM3smodules,thisdocumentdoes

notgrantanylicensetointellectualpropertyrights.Excepttheresponsibilitydeclaredinthe

productsaleclause,USRdoesnotassumeanyotherresponsibilities.Inaddition,USR

doesnotmakeanywarrantiesforthesaleanduseofthisproduct,includingthesuitabilityof

theproductforaparticularpurpose,merchantabilityorfitnessforanypatent,copyrightor

otherintellectualpropertyinfringement,etc.USRmaymakechangestospecificationsand

productdescriptionswithoutnotice.

Appendix

AppendixC:

C :

C:

C:Update

U pdate

Update

UpdateHistory

H istory

History

2015-6-20V1.0basicversioncreated

2015-6-20V1.0.6fixsomeerrors,changereloadpinfunction

2015-9-

11

V1.0.7increaseduseofsettingsoftwaremethod

2015-10-12V1.1.0fixsomeerrors,AddedsomeinstructionsaboutGM3s

<END>

FCC STATEMENT :

This device complies with Part 15 of the FCC Rules. Operation is subject to the following

two conditions:

(1) This device may not cause harmful interference, and

(2) This device must accept any interference received, including interference that may

cause undesired operation.

Warning: Changes or modifications not expressly approved by the party responsible for

compliance could void the user's authority to operate the equipment.

NOTE: This equipment has been tested and found to comply with the limits for a Class B

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide

reasonable protection against harmful interference in a residential installation. This

equipment generates uses and can radiate radio frequency energy and, if not installed

and used in accordance with the instructions, may cause harmful interference to radio

communications. However, there is no guarantee that interference will not occur in a

particular installation. If this equipment does cause harmful interference to radio or

television reception, which can be determined by turning the equipment off and on, the

user is encouraged to try to correct the interference by one or more of the following

measures:

tenna.

receiver is connected.

FCC Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled

environment. This equipment should be installed and operated with minimum distance

20cm between the radiator & your body.

FCC INFORMATION (additional)

OEM INTEGRATION INSTRUCTIONS:

This device is intended only for OEM integrators under the following conditions: The

module must be installed in the host equipment such that 20 cm is maintained between

the antenna and users, and the transmitter module may not be co-located with any other

transmitter or antenna. The module shall be only used with the internal antenna(s) that

has been originally tested and certified with this module. As long as 3 conditions above

are met, further transmitter test will not be required. However, the OEM integrator is still

responsible for testing their end-product for any additional compliance requirements

required with this module installed (for example, digital device emissions, PC peripheral

requirements, etc.).

Validity of using the module certification:

In the event that these conditions cannot be met (for example certain laptop configurations

or co-location with another transmitter), then the FCC authorization for this module in

combination with the host equipment is no longer considered valid and the FCC ID of the

module cannot be used on the final product. In these circumstances, the OEM integrator

will be responsible for re-evaluating the end product (including the transmitter) and

obtaining a separate FCC authorization.

End product labeling:

This transmitter module is authorized only for use in device where the antenna may be

installed such that 20 cm may be maintained between the antenna and users. The final

end product must be labeled in a visible area with the following: “Contains FCC ID:

2AJDA-USRGM3”.

Information that must be placed in the end user manual:

The OEM integrator has to be aware not to provide information to the end user regarding

how to install or remove this RF module in the user's manual of the end product which

integrates this module. The end user manual shall include all required regulatory

information/warning as show in this manual.

This device must be kept away from all persons by 20cm or more and installations using

less distance, or installations using antennas with gain greater than that with which this

was Certified will require additional approvals.

Shandong USR IOT Technology USRGM3 Serial to GPRS Module User Manual

Shandong USR IOT Technology Limited Serial to GPRS Module

User Manual

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