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Maxon MM-6854, Application Notes

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Maxon MM-6854 Application Notes Download Page 29

MM6854/64 Dual Band GSM Data Modem

Issue 1.0

ME 820047

03/00

Page 21

5.1.33 AT+CMGF – Message format

This command allows you to define the input and output format of the short message.

Enter

AT+CMGF=0

AT+CMGF=1

AT+CMGF=?

Response

Set to PDU mode, a complete SMS message including all
header information is passed as a binary string.
Set to text mode, all commands and responses are in ASCII
characters.
Displays all supported values.

Notes: 

None.

Result codes:

OK
ERROR
Message service failure result codes.

5.1.34 AT+CMGL – List messages

This command is used to list the SMS messages stored in the modem.

Enter

AT+CMGL=<STAT>
Where <STAT>
In text mode:
“REC UNREAD”
“REC READ”
“STO UNSENT”
“STO SEND”
“ALL”
In PDU mode:
0
1
2
3
4

AT+CMGL::<index>,
<stat>,<da>,<CR>,<LF>,<dat
a>
Where <data>
<da>
<index>

AT+CMGL=?

Response

Receive unread messages.
Stored read messages.
Stored unsent messages.
Stored sent messages.
All messages

Received unread messages
Stored read messages
Stored unsent messages
Stored sent messages
All messages

TP user data GSM 03.40
Destination Address type value according to GSM 03.40.
Location in memory.

Displays the supported values.

Notes: 

None.

Result codes:

OK
ERROR
Message service failure result codes.

Summary of Contents for MM-6854

Page 1: ...MM 6854 MM 6864 GSM Dual Band Data Modem Application Notes MM 6854 MM 6864 ...

Page 2: ...rnet www maxon co uk Any queries regarding information in this manual please contact the Technical Services Group Leader at the above address Information provided in this document is believed correct at time of printing but is subject to change without notice Maxon will not accept liability for any loss damage or costs howsoever caused as a result of the information provided ...

Page 3: ...tenna or a suitable artificial load connected Never modify a modem or accessory except as instructed by Maxon in a formal communication as this may invalidate any warranty guarantee or type approval Do not operate this equipment in environments containing explosive materials or vapour This includes Petrol service stations This equipment should only be operated while stationary or with a hands free...

Page 4: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page ii 03 00 ...

Page 5: ...ho 14 5 1 7 ATH Hang up 14 5 1 8 ATIn Identification 14 5 1 9 ATO0 Return to transparent mode switch from command mode to data mode 15 5 1 10 ATQ Result code suppression 15 5 1 11 ATS0 n Auto answer mode 15 5 1 12 ATS1 Number of rings 15 5 1 13 ATS2 Escape character 16 5 1 14 ATS3 Command line termination character 16 5 1 15 ATS4 Line Feed character 16 5 1 16 ATS5 Backspace character 16 5 1 17 ATS...

Page 6: ...dule ID 29 5 1 52 AT FMR Report revision 29 5 1 53 AT FRH Receive HDLC data with carrier 29 5 1 54 AT FRM Receive data with carrier 29 5 1 55 AT FTH Transmit HDLC data with carrier 30 5 1 56 AT FTM Transmit data with carrier 30 5 1 57 AT GMI Request manufacturer ID 30 5 1 58 AT GMM Request model ID 30 5 1 59 AT GMR Request revision ID 31 5 1 60 AT ICF Character framing 31 5 1 61 AT IFC Local flow ...

Page 7: ...rograms Menu 49 8 2 2 Select Hyper Terminal 50 8 2 3 Select Properties 50 8 2 4 Set Port 51 8 2 5 Port Settings 51 8 2 6 Properties 52 8 2 7 ASCII settings 52 8 3 Setting up Win Fax Pro 53 8 3 1 Communication Setup 53 8 3 2 Win Fax Pro Setup 53 8 4 Accessories 55 9 GLOSSARY 57 LIST OF FIGURES Figure 3 1 Applications 5 Figure 3 2 GSM GPS Application 6 Figure 4 1 Location of SIM card 7 Figure 4 2 Se...

Page 8: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page vi 03 00 ...

Page 9: ...n the configuration of PCs Section 9 Glossary 1 3 What are the MM6854 64 The MM 6854 64 are GSM Dual Band Data Modems they differ by the following MM 6854 Boxed modem featuring internal back up battery requiring only the connection of power and RS 232 serial data MM 6864 Basic PCB OEM GSM modem For integration into a customer s equipment 1 4 Recommended Procedures 1 Radio Link Protocol should be u...

Page 10: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 2 03 00 1 6 Summary This section has provided a basic introduction to the products ...

Page 11: ...e V24 9 pin D type Baud rate 300 57600 baud no autobauding Set to 19200 as default Parity None Space Odd Even or Mark Character Format 7 or 8 Stop bits 1 or 2 Level To CCITT Recommendation V 28 Data Communication Transparent Non error corrected link according to GSM 04 21 User rates 2400 bps V 22 bis V 26 ter V 110 4800 bps V 32 V 110 9600 bps V 32 V 110 14400 bps V 32 V 110 GPRS1 Non Transparent ...

Page 12: ... Charging On air 4W max Current Consumption 12V 333mA fit 800mA A S fuse 24V 166mA fit 500mA A S fuse Supply Voltage 9V minimum to 28V DC maximum Dimensions 172mm long x 82mm wide x 30mm high Weigh 260 grams Note Maxon Europe reserves the right to alter these specifications without prior notification as part of our continuous improvement policy 2 2 Summary This section has outlined the basic speci...

Page 13: ... 0 ME 820047 03 00 Page 5 3 SYSTEM APPLICATIONS Fleet Management Construction Transportation Anti Theft Utilities Emergency Services Refrigerated Trucks Taxis Delivery Vans Courier Companies Vending Machines Surveillance Figure 3 1 Applications ...

Page 14: ...00 3 1 1 GSM GPS Application One example of an application is sending data and GPS information via the GSM Network Terminal GPS Antenna GSM Antenna Control Unit GSM Modem GSM Antenna GSM Modem Computer Host Application Mobile Equipment Figure 3 2 GSM GPS Application ...

Page 15: ...e network and to initiate billing for your calls is stored in the gold plated area of the SIM card along with the names numbers and messages you have entered into the phone book or received To prevent either the loss of information or corruption of information avoid touching the gold area and do not place the SIM near electrical or magnetic fields A damaged SIM will not allow you to access the GSM...

Page 16: ... observe this may result in damage to the unit and will invalidate the warranty Pin 15 of the D25 connector has to be pulled LOW in order to turn on the modem Alternatively fit accessory cable CA8360 and connect the green lead to GND Provided that the SIM card is unlocked the modem will make an automatic search for your home network or another suitable network operator in your location The modem w...

Page 17: ...ing Operation On Hyper Terminal type ATD Telephone number you want to ring and press Carriage Return The telephone will ring The answer tone will be similar to the one which you would receive with a fax machine 4 7 Summary This section has covered the basic operation of the modem ...

Page 18: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 10 03 00 ...

Page 19: ...pe code guard time 5 1 21 Page 17 ATV Result code format 5 1 22 Page 17 ATX Defines CONNECT result code format 5 1 23 Page 18 ATZ Load user profile 5 1 24 Page 18 AT C Data Carrier Detect Options 5 1 25 Page 18 AT D Data Terminal Ready Options 5 1 26 Page 18 AT F Restore default configuration 5 1 27 Page 19 AT V Display current configuration 5 1 28 Page 19 AT W Save current configuration 5 1 29 Pa...

Page 20: ...age 30 AT GMR Request revision ID 5 1 59 Page 31 AT ICF Character framing 5 1 60 Page 31 AT IFC Local flow control 5 1 61 Page 32 AT ILRR Display local report rate 5 1 62 Page 32 AT IPR Set terminal equipment data rate 5 1 63 Page 32 Error Result Codes Command Paragraph CME ERROR 5 1 64 Page 33 CMS ERROR 5 1 65 Page 33 S register summary 5 1 66 Page 34 5 1 1 CR Escape command By sending the escape...

Page 21: ... Connect 14400 Selected speed Enter ATD12345678 CR Notes As soon as the modem detects the carrier from the GSM base station it returns the CONNECT result code Data transmission can now begin The following characters are valid in a dial string The digits from 0 to 9 and for making International calls The must be at the beginning of the number Result codes ERROR NO CARRIER CONNECT selected speed Mob...

Page 22: ...scape sequence or after disabling the DTR signal with AT D1 option the modem can be forced to disconnect by sending the ATH command Enter ATH Response Notes None Result codes OK ERROR 5 1 8 ATIn Identification This command provides information about the product identification Enter ATIn ATI0 ATI1 ATI2 ATI3 ATI4 ATI5 to I11 ATI12 ATI13 ATI14 ATI15 ATI17 Response Mode Product Code Pre computed check...

Page 23: ...de Notes None Result codes OK ERROR 5 1 11 ATS0 n Auto answer mode Enter ATS0 0 ATS0 1 etc ATS0 5 ATA Response No auto answer incoming calls are ignored Default value The modem will answer incoming calls after the first ring The modem will answer incoming calls after the fifth ring The modem will answer the incoming call Notes The ATA command can still be used regardless of the value of the ATS0 n...

Page 24: ... Sets CR as the command line termination character default Notes Setting any other value than 13 may cause problems when entering commands Result codes None 5 1 15 ATS4 Line Feed character Typing ATS4 will display the decimal value of the ASCII character used as the line feed character The default value 10 corresponds to an ASCII LF Affects asynchronous operation only Enter ATS4 10 Response Sets L...

Page 25: ...otes None Result codes None 5 1 20 ATS10 Wait time before disconnection Set the number of tenths of seconds to wait before disconnecting after the modem has indicated the absence of the received line signal Enter ATS10 15 Response Sets the wait time before disconnection to 15 seconds default Notes None Result codes None 5 1 21 ATS12 Escape code guard time Defines the maximum silence time in fiftie...

Page 26: ...T C Data carrier detect options This command affects the DCD line connected to the serial port Enter AT C0 AT C1 Response Sets the GSM module DCD control line to ON regardless of the data carrier status of the distant station DCD specifies the data carrier status of the distant station DCD on indicates that a connection exists Notes None Result codes OK ERROR 5 1 26 AT D Data Terminal Ready option...

Page 27: ...ault configuration Enter Response Notes None Result codes OK ERROR 5 1 28 AT V Display current configuration The modem will display the current configuration Enter Response Notes None Result codes OK ERROR 5 1 29 AT W Save current configuration This command will allow you to save the current configuration Enter Response Notes None Result codes OK ERROR ...

Page 28: ...parent Non transparent Enter AT CBST AT CBST Response The modem will reply with the selected speed mode and protocol The modem will reply with the supported speeds modes and protocols Result codes OK ERROR 5 1 31 AT CEER Displays why last call was disconnected This command lets you query the reason why the last call was disconnected Enter Response Notes None Result codes OK ERROR 5 1 32 AT CMGD De...

Page 29: ...ult codes 5 1 34 AT CMGL List messages This command is used to list the SMS messages stored in the modem Enter AT CMGL STAT Where STAT In text mode REC UNREAD REC READ STO UNSENT STO SEND ALL In PDU mode 0 1 2 3 4 AT CMGL index stat da CR LF dat a Where data da index AT CMGL Response Receive unread messages Stored read messages Stored unsent messages Stored sent messages All messages Received unre...

Page 30: ... service failure result codes 5 1 36 AT CMGS Send messages This command is used to send SMS messages Enter In text mode AT CMGS Receiver number CR text to be sent CtrlZ In PDU mode AT CMGS length CR p du CtrlZ esc Where length pdu AT CMGS mr Where mr Response OK Number of characters in text mode or length of binary string in PDU mode Binary string coded according to GSM 03 38 Message reference acc...

Page 31: ...er of characters in text mode or length of binary string in PDU mode Notes Esc quits without sending Result codes OK ERROR Message service failure result codes 5 1 38 AT CMSS Send messages from storage This command is used to send a stored SMS message Enter AT CMSS index da t oda Where da index mr toda Response Sends message stored in location corresponding to index OK TP Destination Address Addre...

Page 32: ...deliver them when the serial link is unused Forward unsolicited result codes directly to the user Serial link specific in band used to embed result codes as data when the modem is in on line mode Disable SMS deliver indication If SMS deliver is stored in modem indication of memory location routed to the user using CMTI mem index indication that new message has been received SMS deliveries are rout...

Page 33: ...ired Mobile equipment result code 5 1 41 AT CR Cellar result code for outgoing calls AT CR 5 1 42 AT CRC Cellar result code This command controls whether or not the extended format of incoming call indication is used When enabled the modem will then send an extended string instead of the usual RING AT CRC can have the value 0 or 1 If set to 0 the cellar result code will be disabled and 1 will enab...

Page 34: ...which service centre the message has to be sent The modem has no default value for this address If a SMS is sent without having indicated the service address an error will be generated Enter AT CSCA sca Where sca AT CSCA Response GSM 04 11 RP SC address address values field string format Displays the current value Notes None Result codes OK ERROR Message service failure result codes 5 1 45 AT CSDH...

Page 35: ...Result codes OK ERROR Message service failure result codes 5 1 47 AT DR Data compression report This command is used to determine whether or not the intermediate result code of the current data compression is reported after a connection set up Enter AT DR 0 AT DR 1 AT DR AT DR Response Disable reporting Enable reporting Displays the current value Displays the supported values Notes None Result cod...

Page 36: ...llow negotiation of p0 down Don t allow negotiation of p0 down disconnect if difference Dictionary size Maximum string Displays the current value Displays the supported values Notes None Result codes OK ERROR 5 1 49 AT FCLASS Select read or test service class This command is used to toggle between fax and data commands Enter AT FCLASS 0 AT FCLASS 1 AT FCLASS AT FCLASS Response Set to data mode Set...

Page 37: ...eceive HDLC data with carrier Receive data with HDLC Framing FRH n causes the modem to transmit data using HDLC protocol and the modulation defined below An ERROR response code results if this command is issued while the modem is on hook Enter AT FRH mod Where mod 3 AT FRH Response V 21 300bps Displays supported values Notes None Result codes OK ERROR 5 1 54 AT FRM Receive data with carrier Enter ...

Page 38: ...des OK ERROR 5 1 56 AT FTM Transmit data with carrier Transmit data FTM n causes the modem to transmit data using the modulation defined below An ERROR response code results if this command is issued while the modem is on hook Enter AT FTM mod Where mod 24 48 72 96 AT FTM Response V 27 ter 2400bps V 27 ter 4800bps V 29 7200bps V 29 9600bps Displays supported values Notes None Result codes OK ERROR...

Page 39: ... used to determine the start stop asynchronous character framing that the modem shall use Enter AT ICF format parity Where format 1 2 3 4 5 6 Where parity 0 1 2 3 AT ICF AT ICF Response 8 data 2 stop 8 data 1 parity 2 stop 8 data 1 stop 7 data 2 stop 7 data 1 parity 1 stop 7 data 1 stop Odd Even Mark Space Displays the selected values Displays the supported values Notes None Result codes OK ERROR ...

Page 40: ...g determines whether or not an intermediate result code of local rate is reported at connection set up The rate is applied after the final result code is transmitted to from the modem Enter AT ILRR 0 AT ILRR 1 AT ILRR Response Disables reporting of local port rate Enables reporting of local port rate Displays the current selected value Notes None Result codes OK ERROR ILRR speed 5 1 63 AT IPR Set ...

Page 41: ...rvice 5 1 65 CMS ERROR n n 0 127 128 255 300 301 302 303 304 305 310 311 312 313 314 315 320 321 322 330 331 332 500 GSM 04 11 values GSM 03 04 values ME failure SMS service of ME reserved Operation not allowed Operation not supported Invalid PDU mode parameter Invalid text modem parameter SIM not inserted SIM PIN necessary PH SIM PIN necessary SIM failure SIM busy SIM wrong Memory failure Invalid...

Page 42: ...acter used as the escape character The default value corresponds to an ASCII The value 127 disables the escape process S3 CR character Sets the command line and result code terminator character Affects asynchronous operation only S4 LF character Sets the character recognised as a line feed Affects asynchronous operation only S5 Backspace character Sets the character recognised as backspace Affects...

Page 43: ...MM6854 64 Dual Band GSM Data Modem Issue 1 0 ME 820047 03 00 Page 35 5 2 Summary This section has listed all of the AT commands which are used by the modem ...

Page 44: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 36 03 00 ...

Page 45: ...r to extend the battery life the modem will discharge the battery once a month and then recharge it to full capacity This process takes around 30 minutes during which time the modem is not accessible After around 45 minutes the battery will be fully charged The indicator flashes with the following information Normal In Service One Flash Off One Flash Information Missed calls low battery Two Flashe...

Page 46: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 38 03 00 ...

Page 47: ...ntenna ground is not connected to the modem ground This will not happen where through glass antennas are used Antennas which are through chassis mounting and connect to the vehicle chassis should not be used Failure to observe this may result in damage to the unit and will invalidate the warranty 7 3 Power Sources It is important that a clean source of power is used for the supply to the modem Ide...

Page 48: ...ontact Maxon for further details The use of the correct cables removes the need for multiple connections and the possibility of the wireman making an error If possible run RF cables separately from other cables and keep RF cables apart from one another to avoid interference coupling 7 6 Fixing We recommend that the MM 6854 data modem is securely fixed to a surface either directly or with a suitabl...

Page 49: ...ial data Tx 0 3 V 6 Reserved for future use 7 Reserved for future use 8 Reserved for future use 9 Reserved for future use 10 GND 11 Reserved for future use 12 Reserved for future use 13 GND 14 GND 15 Ignition active low 16 Power Supply 9 to 28VDC 17 Power Supply GND 18 Reserved for future use 19 Reserved for future use 20 Reserved for future use 21 Reserved for future use 22 Reserved for future us...

Page 50: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 42 03 00 ...

Page 51: ... Page 43 8 APPENDICES 8 1 Setting up Windows Modem interface Follow these step by step instructions to set up the Windows Modem interface for use with TAPI interface software such as WinFax Pro 8 1 1 Open up the Control Panel 8 1 2 Double click on the modem icon ...

Page 52: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 44 03 00 8 1 3 Highlight the don t detect my modem box 8 1 4 Select the standard 19200 modem ...

Page 53: ...MM6854 64 Dual Band GSM Data Modem Issue 1 0 ME 820047 03 00 Page 45 8 1 5 Select the appropriate COM port 8 1 6 Set the location information ...

Page 54: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 46 03 00 8 1 7 Finish Installation 8 1 8 Select Properties ...

Page 55: ...MM6854 64 Dual Band GSM Data Modem Issue 1 0 ME 820047 03 00 Page 47 8 1 9 Select Connection 8 1 10 Set Data Bits Parity and Stop bits Select Advanced ...

Page 56: ...ications do not use Software Flow Control therefore set flow control to Hardware In whichever case the hardware or the software must provide flow control otherwise data will be lost 8 1 12 RS 232 In order to turn on the modem Pin 4 DTR must be pulled high This pin will normally be high on a PC COM port when the COM port is available ...

Page 57: ...ta Modem Issue 1 0 ME 820047 03 00 Page 49 8 2 Setting up Hyper Terminal Hyper Terminal is a very simple terminal package which can be used to send simple commands to from the modem 8 2 1 Select Hyper Terminal from Programs Menu ...

Page 58: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 50 03 00 8 2 2 Select Hyper Terminal Double click to open Hyper Terminal 8 2 3 Select Properties ...

Page 59: ...MM6854 64 Dual Band GSM Data Modem Issue 1 0 ME 820047 03 00 Page 51 8 2 4 Set Port 8 2 5 Port Settings ...

Page 60: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 52 03 00 8 2 6 Properties Set Beep if required 8 2 7 ASCII settings Append line feeds send line ends and wrap lines if required ...

Page 61: ...n Fax Pro Other Fax software is available and this section should not be taken as an endorsement of Win Fax Pro 8 3 1 Communication Setup Ensure that the computer modem settings are set to 19200 8 n 1 see Sections 10 1 9 and 10 1 10 8 3 2 Win Fax Pro Setup With Win Fax Pro Installed setup the modem as follows Under Program Setup select Properties ...

Page 62: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 54 03 00 Check Modem is Standard 19200 if not go to 10 1 4 Select Properties Check that the following setting are made ...

Page 63: ...ies Description of Accessory Maxon Part Number 5 metre Power Lead CA8360 9 way D type Male to Female RS 232 Interface Lead CA8361 Dual band GSM Antenna for in vehicle mounting CA8401 12V 1 Amp Mains Power Supply fitted with Euro connector CA6823 Euro Connector to UK adapter ME440014 ...

Page 64: ...MM6854 64 Dual Band GSM Data Modem ME 820047 Issue 1 0 Page 56 03 00 ...

Page 65: ...m serial command set commonly used for land line modems CI Command Interpreter DTE Data Terminal Equipment DTR Data Terminal Ready GPS Global Positioning System GSM Global System Mobile I O Input Output LED Light Emitting Diode SIM Subscriber Identity Module SMS Short Message Service SMSC Short Message Service Centre ...

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