FARGO MAESTRO 100 20 Value Added Feature User Guide 0094
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GSM GPRS Modem 900 / 1800 Value Added Feature USER MANUAL Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. Revision history Rev. 0.9 0.91 Date 22July 2005 22Feb 2006 0.92 21Apr 2006 0.94 3OCT2006 Details First release - Remove AT command history feature - Remote AT command : when enabled all incoming SMS will be erased AutoTCP/UDP : Add DCD/DSR signaling : modify command/data mode switching Support Fargo Maestro 100 Lite New Feature : AT command driven TCP/UDP connection Call screening VAF AT commands can be sent over SMS Originated by Wallace Lee Wallace Lee Wallace Lee Wallace Lee Fargo Maestro is a registered trademark of Fargo Telecom Asia Ltd. This manual is written without any warranty. Fargo Telecom Asia Ltd reserves the right to modify or improve the product and its accessories which can also be withdrawn without prior notice. Besides, our company stresses the fact that the performance of the product as well as accessories depends not only on the proper conditions of use, but also on the environment around the places of use. Fargo Telecom Asia Ltd assumes no liability for damage incurred directly or indirectly from errors, omissions or discrepancies between the modem and the manual. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. Table of contents 1. INTRODUCTION.................................................................................................................................................................................................... 3 2. INSTALLATION ..................................................................................................................................................................................................... 3 2.1. 2.1.1. 2.2. 3. 2.2.2. Downloading the file .................................................................................................................................................... 4 GPRS AND TCP/UDP PARAMETERS SETUP..................................................................................................................................................... 6 3.2. AT+IPGPRS command ................................................................................................................................................. 6 ACTIVATING GPRS CONNECTION ....................................................................................................................................... 7 AT+CGATT command.................................................................................................................................................. 7 3.2.2. AT+IPCONNECT command ........................................................................................................................................ 7 TCP/UDP PARAMETERS SETUP .......................................................................................................................................... 8 3.3.1. AT+IPTCP command.................................................................................................................................................... 8 3.3.2. AT+IPUDP command ................................................................................................................................................. 10 3.3.3. AT+IPBUFF command ............................................................................................................................................... 11 AUTOMATIC AND SELF-RECOVERY TCP/UDP CONNECTION ...................................................................................................................... 13 4.1. FLOW DIAGRAM OF AUTO TCP/UDP CONNECTION FUNCTION .......................................................................................... 14 4.2. AT COMMANDS FOR AUTO TCP/UDP CONNECTION ......................................................................................................... 15 4.2.1. AT+AUTOTCP command .......................................................................................................................................... 15 4.2.2. AT+AUTOUDP command.......................................................................................................................................... 16 AT COMMAND DRIVEN TCP/UDP CONNECTION ............................................................................................................................................ 18 5.1. AT COMMANDS FOR AUTO TCP/UDP CONNECTION ......................................................................................................... 18 5.1.1. AT+DLEMODE command ......................................................................................................................................... 18 5.1.2. AT+OTCP command .................................................................................................................................................. 19 5.1.3. AT+OUDP command.................................................................................................................................................. 19 REMOTE AT COMMAND BY SMS...................................................................................................................................................................... 21 6.1. DESCRIPTION OF THE OPERTATION.................................................................................................................................... 21 6.2. AT COMMAND FOR CONFIGURING AT COMMAND .............................................................................................................. 22 6.2.1. 6.3. 7. GPRS NETWORK PARAMETERS .......................................................................................................................................... 6 3.2.1. 3.3. 6. INSTALLING THE VALUE ADDED FEATURE ........................................................................................................................... 3 Erasing the IP connectivity feature (AT# feature) (Fargo Maestro 100 only) ............................................................... 3 3.1.1. 5. Identifying Fargo Maestro ............................................................................................................................................ 3 2.2.1. 3.1. 4. IDENTIFYING YOUR FARGO MAESTRO ................................................................................................................................ 3 AT+SMSAT command................................................................................................................................................ 22 LIMITATION AND CAUTION TO BE TAKEN WHEN USING REMOTE AT COMMAND ................................................................. 22 I/O TRIGGERED AT COMMAND......................................................................................................................................................................... 24 Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 1 7.1. DESCRIPTION OF THE OPERTATION.................................................................................................................................... 24 7.2. AT COMMAND FOR CONFIGURING I/O TRIGGERED AT COMMAND ..................................................................................... 25 7.2.1. 7.3. 8. 10. 11. NOTES AND CAUTIONS TO BE TAKEN WHEN USING I/O TRIGGERED AT COMMAND ............................................................ 26 CALL SCREENING ............................................................................................................................................................................................. 27 8.1. 9. AT+IOAT command.................................................................................................................................................... 25 AT COMMAND FOR CONFIGURING CALL SCREENING ......................................................................................................... 27 8.1.1. AT+CSRN command .................................................................................................................................................. 27 8.1.2. AT+CSNW command ................................................................................................................................................. 27 8.1.3. AT+CSNR command .................................................................................................................................................. 28 8.1.4. AT+CSND command.................................................................................................................................................. 29 KNOWN ISSUES ................................................................................................................................................................................................. 30 9.1. AT+WIND COMMAND ..................................................................................................................................................... 30 9.2. SAVING OF PARAMETERS TO NON-VOLATILE MEMORY ...................................................................................................... 30 9.3. MUTUALLY EXCLUSIVE TCP/UDP FUNCTIONS. ................................................................................................................ 30 9.4. SENDING VAF AT COMMANDS OVER SMS ....................................................................................................................... 30 QUESTIONS AND ANSWERS ............................................................................................................................................................................ 31 10.1. INSTALLATION .................................................................................................................................................................. 31 10.2. AUTOTCP/UDP ............................................................................................................................................................... 31 10.3. AT COMMAND DRIVEN TCP/UDP CONNECTION ............................................................................................................... 31 10.4. RMOTE AT COMMAND BY SMS ........................................................................................................................................ 32 10.5. I/O TRIGGERED AT COMMAND .......................................................................................................................................... 32 EXAMPLES OF VAF SETUP AND OPERATION................................................................................................................................................ 33 11.1. TO MAKE A AT COMMAND DRIVEN TCP CONNECTION ...................................................................................................... 33 11.2. TO SETUP A AUTOMATIC TCP CONNECTION ...................................................................................................................... 33 Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 2 1. INTRODUCTION Fargo Maestro Value-Added Feature (VAF) package is a software solution for Fargo Maestro modem (*note 1). New functions added to increase application range of various industrial and automated applications: - Automatic and self-recovery TCP/UDP socket connection (*note 2) - AT command driven TCP/UDP socket connection (*note 2) - Remote AT command (AT command through SMS) - I/O triggered AT command execution - Call screening (reject call made by unauthorized phone number) Users can configure and use the above features by AT commands. Note 1: Not all Fargo Maestro can have this feature installed. Please refer to Chapter 2 Note 2: For Fargo Maestro 100 with TCP/IP and Fargo Maestro 100 Lite only 2. INSTALLATION 2.1. Identifying your Fargo Maestro Not all Fargo Maestro can have the Value-added feature installed, so you need to check your Fargo Maestro modem before installation. 2.1.1. Identifying Fargo Maestro by AT command Start HyperTerminal, choose correct baud rate to communicate with the modem (Fargo Maestro 20/100Lite: 9600bps, 8N1; Fargo Maestro 100: 115200bps, 8N1 ) Then enter the following and see the response according to the following table: Model Fargo Maestro 20 Fargo Maestro 100 Fargo Maestro 100 Lite Command AT+WOPEN=2 AT+WOPEN=2 AT+WOPEN=2 Expected response +WOPEN: 2,"AT v02.10" +WOPEN: 2,"AT v02.10","AT v02.10" +WOPEN: 2,"AT v03.01" If you get the same response then this modem is ready for installation. 2.2. Installing the Value added feature 2.2.1. Erasing the IP connectivity feature (AT# feature) (Fargo Maestro 100 only) For Fargo Maestro 100, you need to erase the IP connectivity feature before downloading the Value added feature. Again, on HyperTerminal enter the following commands step by steps: Command entered AT+WOPEN=0 AT+WOPEN=3 AT+WOPEN=4 Expected response (modem will reset) OK (modem will reset) Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 3 2.2.2. Downloading the file a. Check the HyperTerminal is configured with setting “8 data bits, no parity, 1 stop bit, and hardware flow control (CTS/RTS) b. For Fargo Maestro 20 and Fargo Maestro 100 Lite, it is suggested to set the baud he RS232 link is changed to 115200 bps. You can first start HyperTerminal session with 9600 bps. The on the screen type command AT+IPR = 115200 and then press “Enter”. Then change the HyperTerminal speed to 115200bps. (For Fargo Maestro 100 the default speed is 115200bps) c. On the screen type the command AT+WDWL and then press “Enter”. The modem should answer +WDWL: 0, and then a series of strange characters appear or the cursor is just moving forward slowly. (the modem is sending the first characters of the Xmodem protocol). d. Then on HyperTerminal you choose “Transfer” –“Send File” e. When you see the dialog box, on the “Filename” you choose file according to the modem: Fargo Maestro 20 : FM20_VAF_094_OAT210_16.dwl Fargo Maestro 100 : FM100_VAF_094_OAT210_32.dwl Fargo Maestro 100 : FM100_VAF_094_OAT303_32.dwl Then on “Protocol” choose “Xmodem”, then press “OK” Then the downloading process will start: f. After finishing downloading enter command AT+CFUN=1 to restart modem g. After restarting enter command AT+WOPEN=1 to start the VAF program (modem will restart). Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 4 h. Enter VAF version command AT+VAFV to verify : Command AT+VAFV Expected response FM100_VAF_094_OAT210_32 Sep 28 200618:01:42 OK Now the Fargo Maestro Value added Feature installation has been done. You can follow other chapters to use the features. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 5 3. GPRS AND TCP/UDP PARAMETERS SETUP Note: This chapter does not applicable to Fargo Maestro 20 The Automatic and AT command driven TCP/UDP connection (described in Chapter 4 and 5) requires GPRS connection and TCP / UDP parameters setup. This chapter will describe those required setups. 3.1. GPRS Network Parameters User need to enter the following parameters for GPRS connection: - Access point name (APN) - User name - Password They are to be entered by using AT+IPGPRS command. Contact your network operator for these parameters. 3.1.1. AT+IPGPRS command Description: This command is used to setup GPRS network parameters for the TCP/UDP connection feature. Command Syntax AT+IPGPRS=, , , Response Syntax +IPGPRS: , , , Command AT+ IPGPRS? AT+ IPGPRS=1, AT+ IPGPRS =1,”INTERNET” AT+ IPGPRS=? Possible responses: +IPGPRS: 1,"INTERNET","" ,”” OK Note: show current settings OK Note: set Cid value to 1 OK Note: set the PDP value to 1 and APN to “INTERNET” +IPGPRS: (1-4),(100),(50),(50) OK Note: possible values Defined Values : PDP context identifier. Note: to use with VAF TCP/UDP connection feature this value must be set to 1. Access point name of the GPRS network. Max 100 characters. User name to access the GPRS service. Max 50 characters. Password used to access the GPRS service. Max 50 characters. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 6 3.2. Activating GPRS Connection For using AT command driven TCP/UDP connection (described in Chapter 5), you need to first activate the VAF GPRS connection. There are two AT commands: - AT+CGATT - AT+IPCONNECT 3.2.1. AT+CGATT command This standard AT command is to make the modem to attach to or detach GPRS network. For details please read AT command document. Command Syntax AT+CGATT= Response Syntax +CGATT: Command AT+ CGATT? AT+ CGATT=1 AT+ CGATT =0 Possible responses: +CGATT: 0 OK Note: display current status OK Note:GPRS attach success OK Note:GPRS detach success Defined Values: 1: attach GPRS 0: detach GPRS. 3.2.2. AT+IPCONNECT command This VAF AT commands is to make the modem to activate or deactivate GPRS connection . Once IPCONNECT is success you can perform TCP/UDP connection as described on other chapters. Please read note below on using this command. Command Syntax AT+IPCONNECT = , Response Syntax +IPCONNECT: , Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 7 Command AT+ IPCONNECT=? AT+ IPCONNECT? AT+IPCONNECT=1,1 AT+IPCONNECT=1,1 AT+ IPCONNECT =1,0 Possible responses: +IPCONNECT: (0-1) , (0-1) OK Note: display possible values +IPCONNECT: 1,0 OK Note: display current status OK OK OK Note: Activate GPRS connection success +CME ERROR: 3 Note: Activate GPRS connection fail OK Note: Deactivate GPRS connection success Defined Values: 0: using GSM Bearer ( Note: do NOT use this for VAF ) 1: using GPRS Bearer. 0: to stop connection 1: to start connection. Note: Before you making GPRS connection by this command make sure you have finished the following first: 1. Entered APN settings by AT+IPGPRS command Chapter 3.1.1) 2. Attached to GPRS network by AT+CGATT command (Chapter 3.2.1) It is suggested after modem power up wait about 20 seconds before making GPRS connection. 3.3. TCP/UDP Parameters Setup For using automatic or AT command driven TCP/UDP connection (described in Chapter 4 and 5), you need to first enter the target TCP/UDP peer parameters. There are - AT+IPTCP - AT+IPUDP - AT+IPBUFF - 3.3.1. AT+IPTCP command This command specifies the TCP socket parameters and mode that to be used by automatic or AT command driven TCP connection (described in Chapter 4 and 5). Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 8 Command Syntax AT+IPTCP= , , , Response Syntax + IPTCP: , , , Command AT+ IPTCP? AT+ IPTCP =23 AT+ IPTCP =23,”C”,202.144.111.222”,100 AT+ IPTCP =23,”S”,255.255.255.255”,100 AT+ IPTCP =? Possible responses: +IPTCP: 0,"S","",100 OK Note : show current settings OK Note: set the TCP port to 23 OK Note: to set the modem to connect TCP socket Client (caller) mode to target :address 202.144.111.222 and port 23 OK to set the modem to wait for TCP socket connection request (Server (listening) mode) any calling IP address allowed, port 23 +IPTCP: (0-65535),("C","S"),(120),(0-32760) OK Note : possible argument Defined Values: The port number to be used for the TCP socket connection. Default value is 0. Valid range is 0 to 65535. Mode of TCP operation. Default value is “S”. “S” Server (Listening) mode. This configures Fargo Maestro to open a listening TCP connection on the specified . The TCP connection will be active upon getting socket connection request from the allowed remote TCP peer (see ) “C” Client (caller) mode. This configures Fargo Maestro to request opening a TCP connection to the server with the specified and . Note: This parameter is used by Auto TCP connection (see Chapter 4) only. The address of the TCP server (or host). Default value is empty. Legal values could be 32-bit in dotted-decimal notation (i.e. xxx.xxx.xxx.xxx) or alphanumeric ASCII test string up to 120 characters (only if DNS is available on the GPRS network) Note: In “Server” (Listening) mode the modem will only accept TCP connection request for the caller with address specified in the field. Yet if the it is set to “255.255.255.255” the modem will accept request from ANY address. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 9 This parameter determines the time delay introduced before sending a TCP frame that has not been entirely filled with user data. The timer is entered in milliseconds and it should be noted that a value of ‘0’ initiates the sending of a TCP frame as soon as possible after the reception of a single character value from the host. The default value is 100. 3.3.2. AT+IPUDP command This command specifies the UDP socket parameters and mode that to be used by automatic or AT command driven UDP connection (described in Chapter 4 and 5).. Command Syntax AT+IPUDP= , , , Response Syntax + IPUDP: , , , Command AT+ IPUDP? AT+ IPUDP =23 AT+ IPUDP =23,”C”,202.144.111.222”,100 AT+ IPUDP =23,”S”,255.255.255.255”,100 AT+ IPUDP=? Possible responses: +IPUDP: 0,"S","",100 OK Note : show current settings OK Note: set the UDP port to 23 OK Note: to set the modem to connect UDP socket Client (caller) mode to target :address 202.144.111.222 and port 23 OK to set the modem to wait for UDP socket connection request (Server (listening) mode) any calling IP address allowed, port 23 +IPUDP: (0-65535),("C","S"),(120),(0-32760) OK Note : possible argument Defined Values: The port number to be used for the UDP socket connection. Default value is 0. Valid range is 0 to 65535. Mode of UDP operation. Default value is “S”. “S” Server (Listening) mode. This configures Fargo Maestro to open a listening UDP connection on the specified . The UDP connection will be active upon getting socket connection request from the allowed remote UDP peer (see ) “C” Client (caller) mode. This configures Fargo Maestro to request opening a UDP connection to the server with the specified and . Note: This parameter is used by Auto UDP connection (see Chapter 4) only. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 10 The address of the UDP server (or host). Default value is empty. Legal values could be 32-bit in dotted-decimal notation (i.e. xxx.xxx.xxx.xxx) or alphanumeric ASCII test string up to 120 characters (only if DNS is available on the GPRS network) Note: In “Server” (Listening) mode the modem will only accept UDP connection request for the caller with address specified in the field. Yet if it is set to “255.255.255.255” the modem will accept request from ANY address. This parameter determines the time delay introduced before sending a UDP frame that has not been entirely filled with user data. The timer is entered in milliseconds and it should be noted that a value of ‘0’ initiates the sending of a UDP frame as soon as possible after the reception of a single character value from the host. The default value is 100. 3.3.3. AT+IPBUFF command This command specifies the number of bytes of payload data from remote peer buffered inside the modem when automatic or AT command driven TCP / UDP connection is made. - If the quantity of buffered data reach this value, the whole buffered data will be sent out to the serial port. - If the data from remote is large enough at one time, only multiple of this value data will be sent out to the serial port remainder will be kept inside buffer. Example: AT+IPBUFF=5 18 bytes of data sent from TCP or UDP socket to modem 1234567890A BCDEFGH 15 bytes (multiple of 5) data sent out to serial port, remaining data buffered inside 1234567890A FGH Command Syntax AT+IPBUFF = Response Syntax +IPBUFF: Command Possible responses: Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 11 AT+ IPBUFF=? AT+ IPBUFF? AT+IPBUFF = 5 +IPBUFF: 0-100 OK Note: display possible values +IP BUFF: 0 OK Note: display current status OK Note: Set IPBUFF value to 5 Defined Values: The number of bytes of data to be buffered. Default value is 0 (i.e. no buffering). Valid range is 0 to 100. Note: If the TCP or UDP socket connection is broken, buffered data will be lost. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 12 4. AUTOMATIC AND SELF-RECOVERY TCP/UDP CONNECTION Note: This chapter does not applicable to Fargo Maestro 20 The Auto TCP/UDP connection feature is defined for accessing serial devices over the Internet. Fargo Maestro can be configured that after power up it will connect to a remote TCP/UDP socket (client mode) or to wait for the TCP/UDP socket connection request from remote peer (server mode). If the socket connection is unsuccessful or disconnected it will repeat the connection request and back to waiting stage. This make remote peer can access serial device connected to Fargo Maestro. Direct serial connection RS-232 cable serial device TCP Socket connection via the Internet /GPRS network Broad band RS-232 cable GPRS Fixed IP: 123.456.789.0 Program monitoring Auto TCP connection set to connect Port 23 123.456.789.0 port 23 Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 13 4.1. Flow diagram of Auto TCP/UDP connection function Modem Power on/ restart No Is AutoTCP/UDP enabled ? Stop Yes W ait for 20 secs No Re-attach GPRS No GPRS attach OK ? Yes Re-activate GPRS No GPRS activation OK ? Yes TCP/UDP connection request from allowed peer? No No Client mode ? Yes No OK to open pre-defined TCP/UDP socket ? Dealy 2 seconds Yes No Open TCP/UDP socket, connect to serial port Open TCP/UDP socket, connect to serial port TCP/UDP disconnected or closed ? TCP/UDP disconnected or closed ? Yes Yes GPRS attach fail ? No Yes GPRS activation fail ? No No Yes GPRS attach fail ? Yes No GPRS activation fail ? Yes No Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 14 4.2. AT commands for Auto TCP/UDP connection 4.2.1. AT+AUTOTCP command This command controls the Maestro 100/100 Lite to start TCP socket connection automatically Before using AT+AUTOTCP TCP and GPRS settings MUST be setup properly using AT+IPTCP and AT+IPGPRS command respectively. Command Syntax AT+AUTOTCP= Response syntax: +AUTOTCP: Command AT+AUTOTCP=0 AT+AUTOTCP=1 AT+ AUTOTCP? AT+AUTOTCP=? Possible responses: OK Note : disable AutoTCP OK Enable AutoTCP +AUTOTCP : 1 OK Note display current status +AUTOTCP : (0-1) Note : possible argument Defined Values: 1 enable auto TCP 0 disable auto TCP Note : - Before enabling Auto TCP, it MUST be properly set the GPRS settings by AT+IPGPRS command and TCP settings by AT+IPTCP command (see Chapter 3) - ONLY GPRS PDP context # 1 will be used. So please setup +IPGPRS settings with =1 - Once AutoTCP is enabled, it will start the TCP socket connection automatically after 20 seconds. - Once the TCP connection is established successfully, the serial port will go to data mode, all data entered to the serial port will be sent to remote TCP peer. No more AT commands will be accepted then. - In TCP connected data mode, the DSR and DCD signals of the serial port will go to high. - If the TCP connection is broken the modem will try to reconnect automatically. During re-connection period serial port will go back to command mode, and DSR/DCD signal back to low. - The setting will be saved, and after power off, the AUTOTCP will be restarted with the 20 seconds delay after power up. - To stop auto TCP connection, you need to enter the command AT+AUTOTCP=0 by either 1: within 20 seconds after power up, or 2: during reconnection (serial port back to command mode), or 3: by SMS (see Chapter , SMS AT command). - Auto TCP connection is exclusive to other TCP/UDP feature. See Chapter 10 (Q&A) Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 15 4.2.2. AT+AUTOUDP command This command controls the Maestro 100/100 Lite to start UDPacket connection automatically. Before using AT+AUTOUDP TCP and GPRS settings MUST be setup properly using AT+IPUDP and AT+IPGPRS command respectively. Command Syntax AT+AUTOUDP= Response syntax: +AUTOUDP: Command AT+AUTOUDP=0 AT+AUTOUDP=1 AT+ AUTOUDP? AT+AUTOUDP=? Possible responses: OK Note : disable AutoUDP OK Note: Enable AutoUDP +AUTOUDP : 1 OK Note: display current status +AUTOUDP : (0-1) Note : possible argument Defined Values: 1 enable auto UDP 0 disable auto UDP Note : - Before enabling Auto UDP, it MUST be properly set the GPRS settings by AT+IPGPRS command and UDP settings by AT+IPUDP command - ONLY GPRS PDP context # 1 will be used. So please setup +IPGPRS settings with =1 - Once AutoUDP is enabled, it will start the UDP socket connection automatically after 20 seconds. - Once the UDP connection is established successfully, the serial port will go to data mode, all data entered to the serial port will be sent to remote UDP peer. No more AT commands will be accepted then. - In UDP connected data mode, the DSR and DCD signals of the serial port will go to high. - If the UDP connection is broken the modem will try to reconnect automatically. During re-connection period serial port will go back to command mode, and DSR/DCD signal back to low. - The setting will be saved, and after power off, the AUTOUDP will be restarted with the 20 seconds delay after power up. - To stop auto UDP connection, you need to enter the command AT+AUTOUDP=0 by 1: within 20 seconds after power up, or 2: during reconnection (serial port back to command mode) or 3: by SMS (see Chapter , SMS AT command). - Auto TCP connection is exclusive to other TCP/UDP feature. See Chapter 10 (Q&A) Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 16 - Due to the nature of UDP socket connection, AT+AUTOUDP=0 may not be able to disconnection. in this case you may send command AT+IPCONNECT=1,0 to disconnect GPRS connection. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 17 5. AT COMMAND DRIVEN TCP/UDP CONNECTION Note: This chapter does not applicable to Fargo Maestro 20 This feature let user to make a TCP or UDP connection upon the AT+OTCP or AT+OUDP command. This socket connection feature do support DLE/ETX character coding. See The AT+OTCP and AT+OUDP operation is similar to AT#OTCP and AT#OUDP function provided original IP Connectivity. See IP connectivity document. Make sure you have made the GPRS connection by AT+IPCONNECT command before making socket connection (see Chapter 11, setup examples). 5.1. AT commands for Auto TCP/UDP connection 5.1.1. AT+DLEMODE command When performing the AT command driven TCP or UDP socket connection, the attached host has the choice to code or not the ETX character. When DLEMODE is set to 0, no specific process is needed on ETX characters. It means that it is not possible for a host to request a end of connection or to receive a clear indication of end of connection from the TCP/IP stack. When DLEMODE is set to 1, the ETX character means a request or an indication of end of connection. As a consequence, ETX characters that belongs to the payload data must be sent by the host on the serial port preceded by a DLE character. Similarly ETX characters received by the TCP/IP stack from the Internet are sent to the host through the serial port preceded by a DLE character “ETX” is character hex 03, “DLE” character is hex 10 (Dec 16) Default value is 0. Command Syntax AT+DLEMODE= Response syntax: +DLEMODE: Command AT+ DLEMODE =0 AT+ DLEMODE =1 AT+ DLEMODE? AT+ DLEMODE =? Possible responses: OK Note : disable DLEMODE OK Note: Enable DLEMODE +DLEMODE : 1 OK Note: display current status +DELMODE : (0-1) Note : possible argument Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 18 Defined Values: 1 enable DLEMODE 0 disable DLEMODE Note : - DLEMODE is not available for Automatic TCP/UDP connection. 5.1.2. AT+OTCP command This command sent by the attached host to open a TCP connection to the TCP server specified by the AT+IPCTP command. If socket connection is made successfully it will response CONNECT 115200 and the serial port will go to data mode, all data entered to the serial port will be sent to remote TCP/UDP peer. If socket connection is unsuccessful or socket is disconnected afterwards the modem will send out NO CARRIER message and back to command mode. Command Syntax AT+OTCP Response syntax: CONNECT 115200 Command AT+ OTCP Possible responses: CONNECT 115200 Note : TCP connection made successfully +CME ERROR 3 Note: fail, either IPCONNECT is not ready or socket service is used already NO CARRIER Note: possibly remote server no response AT+ OTCP AT+ OTCP Note : - AT+OTCP connection is exclusive to other TCP feature. See Chapter (Q&A) - If TCP connection is unsuccessful or broken after connection the GPRS connection will also be disconnected. (+IPCONNECT: 1,0). So please enter AT+IPCONNECT=1,1 to reconnect GPRS before entering AT+OTCP. 5.1.3. AT+OUDP command This command sent by the attached host to open a UDP connection to the UDP server specified by the AT+IPUDP command. If socket connection is made successfully it will response CONNECT 115200 and the serial port will go to data mode, all data entered to the serial port will be sent to remote UDP peer. If socket connection is unsuccessful or socket is disconnected afterwards the modem will send out NO CARRIER message and back to command mode. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 19 Command Syntax AT+OTCP Response syntax: CONNECT 115200 Command AT+ OUDP Possible responses: CONNECT 115200 Note : UDP connection made successfully +CME ERROR 3 Note: fail, either IPCONNECT is not ready or socket service is used already NO CARRIER Note: possibly remote server no response AT+ OUDP AT+ OUDP Note : - AT+OUDP connection is exclusive to other TCP/UDP feature. See Chapter (Q&A) - If UDP connection is unsuccessful or broken after connection the GPRS connection will also be disconnected. (+IPCONNECT: 1,0). So please enter AT+IPCONNECT=1,1 to reconnect GPRS before entering AT+OUDP. - Due to the nature of UDP socket connection, sending ETX characters (when DLEMODE is 1)may not be able to make disconnection. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 20 6. REMOTE AT COMMAND BY SMS This feature is to control the modem to interpret AT command from incoming SMS, executing it, and return the result to sender by SMS. The user can enable the modem to receive AT command by incoming SMS. See following about AT+SMSAT command. 6.1. Description of the Operation Step 1 : send AT command to modem by SMS 000000AT+CSQ Step 2 : modem execute and return response by SMS +CSQ: 17,0 OK 1. When enabled, the modem will treat the incoming SMS as a source of AT command only if all of the following conditions (a,b and c) are fulfilled : a. The content of SMS sent to the modem is using standard 7-bit GSM data decoding scheme, b. The first 6 characters of the SMS content matches the parameter set by AT+SMSAT command, (default key is “000000”) c. The 7th and 8th characters of the SMS content is “AT” (in capital letters) 2. If SMSAT is enabled , the modem will read each incoming SMS, if the conditions mentioned in 1 are matched the message will be executed, even it is an invalid AT command 3. When using SMSAT feature, only +CNMI:x,1,x,x,x setting could be used (i.e. incoming message will be stored in SIM card). 4. The maximum length of the AT command is limited by length of SMS, i.e. 160-6 = 154 characters 5. When the SMS AT command is executed , all intermediate and final responses will be buffered recorded, then return to the sender’s phone number in one single SMS. 6. If response(s) of the AT command is(are) more than 160 characters, only the first 160 characters will be returned. 7. In case the modem cannot get terminal response within 26 seconds, the modem will then abort the command, and return intermediate responses (if present). 8. If the SMSAT feature is enabled, all incoming SMS, either with valid AT command or not, will be erased. This is to prevent SIM card memory from fully filled, such the modem will not receive new SMS. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 21 6.2. AT command for configuring AT command 6.2.1. AT+SMSAT command Command Syntax AT+SMSAT= (, ) Response syntax: +SMSAT: , Command AT+SMSAT=0 AT+ SMSAT =1 AT+ SMSAT? AT+SMSAT=2,123456 AT+ SMSAT =? Possible responses: OK Note : disable remote AT command by SMS OK Enable remote AT command by SMS +SMSAT : 1,000000 OK Note display current status OK Note: set the value +SMSAT : (0-2),(6) OK Note : possible argument Defined Values: 0 disable remote AT command by SMS 1 enable remote AT command by SMS 2 change the value of the A 6-digit numeric character key from 000000 to 999999. Only incoming SMS with the first 6 characters matching with this key will be treated as a valid source of remote AT command. 6.3. Limitation and caution to be taken when using remote AT command This feature will not ‘judge’ the result of executing the command, so care has to be taken not to enter improper command that make the modem becoming out of control: 1. Never send ‘interactive’ AT command by SMS, e.g. AT+CMGS=…. This feature cannot return the prompt to the sender for second input 2. Always wait for the return SMS with AT responses before you send another SMS AT command. 3. It could be in some case (e.g. network failure) the modem cannot return response SMS. The modem will try sending response SMS for three times max. If still not successful it will abort. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 22 4. Always think twice before you send AT command by SMS. For example if you send AT+CPOF it will turn off the modem, and you need to go to access the modem to reset it. 5. Some VAF AT commands can be sent over SMS. See Chapter Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 23 7. I/O TRIGGERED AT COMMAND This feature making use of the Fargo Maestro Input/Output port as a sensor. If the signal to the port match the pre-defined condition a stored AT command will be executed. User can use AT+IOAT command to set the condition and store AT command to be executed. 7.1. Description of the Operation I/O port Wiring Diagram : 1. When the I/O port is connected to high 3V signal, Switch closed : logic level high Switch opened : logic level low. 2. The switch can be placed as a triggering device, e.g. to detect door opening. 3. According to the setting of AT+IOAT command, the stored AT command will be executed either I/O signal from high to low, or from low to high : When set as low-to-high triggering: Start counting time when a when period of high signal low to high signal reach the Threshold value I/O port voltage time = T Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 24 When set as high-to-low triggering : I/O port voltage time = T Start counting time when a when period of low signal high to low signal reach Threshold value the * See AT+IOAT command on setting Threshold value T. 7.2. AT command for configuring I/O triggered AT command 7.2.1. AT+IOAT command Command Syntax AT+IOAT= (, , , ) Response syntax: +SMSAT: , , , Command AT+IOAT=0 AT+IOAT =1 AT+ IOAT? AT+IOAT=2,1,10,”AT+IPR=115200” AT+ IOAT =? Possible responses: OK Note : disable I/O triggered AT command execution OK Enable remote I/O triggered AT command execution +IOAT : 1,1, 10,”AT+CMSS=5” OK Note display current status OK Note: set the parameters < dir>, , low-to-high triggering, Threshold=1000 ms command is “AT+IPR=115200” +IOAT : (0-2),(0-1),(1-50),(128) OK Note : possible argument Defined Values: 0 disable I/O triggered AT command execution 1 enable I/O triggered AT command execution 2 configure I/O triggered AT command parameters 0 configure as low-to-high triggering 1 configure as high-to-low triggering Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 25 Time required for the detected state to trigger the AT command exestuation. Unit is in millisecond. Valid value from 1 to 50 (0.1 sec to 5 sec). Refer to the above timing diagram in section 5.1. AT command to be executed when the I/O port is triggered successfully. The length of the command is limited to 128 characters. See section 5.3 for more details. 7.3. Notes and cautions to be taken when using I/O triggered AT command 1. The I/O port is limited to drain current 10mA max. Never give too high input voltage to the I/O port or the modem will be damaged. 2. Use only cable/metal contact designed for Molex MicroFit™ connector. Using incompatible connector will damage the modem. Contact your dealer or Fargo Telecom if you need wire for the I/O port connection. 3. The modem will NOT check the command you entered to the field. It will be executed even it is not a valid AT command (or even not an AT command). Check by yourself when you enter the command. 4. When triggered, the command will be executed in ‘quiet’ mode, i.e. without any response like “OK” or “ERROR” will be sent to external application. 5. Do not enter “interactive” AT command (e.g. AT+CMGS=…), otherwise when the command is executed, the modem will in a state of waiting further input, not to do other jobs. 6. With this feature enabled user cannot control the I/O port by other AT commands anymore. 7. Due to product limitation the modem cannot detect switching action with period less than 100ms. If the switch’s open/close action is done in less than 100ms this feature will not be able to detect accurately. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 26 8. CALL SCREENING This feature enable the Fargo Maestro to reject incoming call if the phone number does not match one of the entries of authorized phone number list. Unauthorized incoming call will be hanged up within one ring. Up to 10 authorized phone numbers can be stored. Each number can be as long as characters Waiting call can also be rejected. 8.1. AT command for configuring call screening 8.1.1. AT+CSRN command This command is to enable or disable call screening feature. Command Syntax: AT+CSRN= Response syntax: +CSRN: Command AT+CSRN=0 Possible responses: OK Note : disable call screening OK Enable call screening +CSRN : 1 Note display current status +CSRN: (0-1) Note : possible argument AT+CSRN=1 AT+CSRN? AT+CSRN=? Defined Values : 0 disable call screening 1 enable call screening Note : - To use call screening make sure Caller ID service is enabled otherwise all incoming call will be rejected. - To apply call screening to waiting call please first enable Call waiting indication by command AT=CCWA=1,1 - Rejected incoming will not be diverted to voice mail. 8.1.2. AT+CSNW command This command is to enter authorized phone number. Command Syntax: AT+CSNW= , Response syntax: OK Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 27 Command AT+CSNW=1,”12345678” AT+CSNW=11,”12345678” AT+CSNW=3,”1qaaa” AT+CSNW=? Possible responses: OK Note : enter authorized number to location 1 +CME ERROR: 3 Note : location out of range +CME ERROR: 3 Note : non-numeric characters not allowed +CSRN: (1-10),(20) Note : possible argument Defined Values : Location of the authorized phone number to be stored. Valid range is from 1 to 10 Authorized phone number. First digit can be “+”, others must be numeric digits. Maximum length is 20 Note : - Enter phone number exactly same as the incoming one, especially if entering International phone number. Use AT+CLIP command to check incoming call number first. - Enter empty phone number in the field will erase the record of that location. 8.1.3. AT+CSNR command This command is to read authorized phone number entered. Command Syntax: AT+CSNR= (, ) Response syntax: +CSNR: , …. Command AT+CSNR=1 Possible responses: +CSNR: 1, “12345678” OK Note : display authorized number in location 1 +CSNR: 1, “12345678” +CSNR: 3, “123456” +CSNR: 6, “12345678” +CSNR: 8, “12345678” AT+CSNR=1,8 OK Note : display authorized number in from location 1 to 8 +CSNR=(1-10),(1-10) OK Note: possible argument AT+CSNR=? Defined Values : Beginning location of the authorized phone number to be read. Valid range is from 1 to 10. Ending location of the authorized phone number to be read. Valid range is from 1 to 10. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 28 8.1.4. AT+CSND command This command is to erase authorized phone number entered. Command Syntax: AT+CSND= (, ) Response syntax: +CSNR: , …. Command AT+CSND=1 Possible responses: OK Note : erase authorized number in location 1 OK Note : erase authorized number in from location 1 to 8 +CSND=(1-10),(1-10) OK Note: possible argument AT+CSNR=1,8 AT+CSND=? Defined Values : Beginning location of the authorized phone number to be erased. Valid range is from 1 to 10. Ending location of the authorized phone number to be erased. Valid range is from 1 to 10. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 29 9. KNOWN ISSUES The Fargo Maestro Value Added Feature will affect certain other AT commands operation. Please note. : 9.1. AT+WIND command AT+WIND command will be disabled (Fargo Maestro 100 only) 9.2. Saving of parameters to non-volatile memory You cannot save the settings of the following AT commands by concatenating the &W command (Fargo Maestro 100 only): AT+CREG AT+CGREG AT+CGEREP To save the above settings please enter AT&W separately. 9.3. Mutually exclusive TCP/UDP functions. Following functions are exclusive to each other, i.e. if either is enabled others could not be then: AT+AUTOTCP=1 AT+AUTOUDP=1 AT+OTCP AT+OUDP 9.4. Sending VAF AT commands over SMS You can use the remote AT command by SMS feature to send VAF AT commands mentioned in this document except the followings: AT+OTCP AT+OUDP AT+IPCONNECT Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 30 10. QUESTIONS AND ANSWERS 10.1. Installation Q. If my Fargo Maestro cannot match with the requirement stated in section 2.1, can I upgrade it? A. No. Older Fargo Maestro cannot be upgraded. Q. Can I have the TCP/IP (IP connectivity) feature together with this VAF for Fargo Maestro 100? A. No. You can only choose one of them. Q. If I changed my Fargo Maestro with the VAF installed, can it be changed back to have TCP/IP feature? A. It depends. Contact Distributor or Fargo Telecom Q. I have downloaded the dwl file, and entered AT+WOPEN=1, but I still cannot use VAF features, why ? A. It could be installation problem. You can issue command AT+WOPEN=0, then AT+WOPEN=4, then repeat the download procedure. If this still not help you may need to re-flash the main firmware first. Q. Can I disable the VAF ? A. Yes, you can enter AT+WOPEN=0 to disable. Q. I get “Invalid modem” message after downloading dwl file and issuing AT+WOPEN=1. Why ? A. Maybe you have downloaded file into incorrect or damaged modem. Please contact Fargo Telecom. Q. I had download incorrect dwl file, and the modem is not responding after issuing AT+WOPEN=1. What should I do ? A. You may need to re-flash the main firmware. Please contact Fargo Telecom or your distributor. 10.2. AutoTCP/UDP Q. Can I specify by URL (e.g. xxxx.com) rather than IP address? A. Yes, but only if your GPRS network have proper DNS service. You cannot specify your own DNS server Q. If I enabled AutoTCP or AutoUDP, how can I stop it ? A. you need to enter the command AT+AUTOTCP=0 or AUTOUDP=0 by either 1: within 20 seconds after power up, or 2: during reconnection (serial port back to command mode), or 3: by SMS (see Chapter , SMS AT command). 10.3. AT command driven TCP/UDP connection Q. Why I see three “OK” coming after entering AT+IPCONNECT=1,1 command ? A. The VAF program is issuing internal AT command for GPRS setup, so extra “OK” responses will be seen. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 31 Q. After the TCP/UDP connection is stopped I wan to enter AT+OTCP or AT+OUDP to reconnect but I get message “+CME ERROR: 3”. Why ? A. After TCP/UDP socket connection the GPRS connection session will also be disconnected. So please enter AT+IPCONNECT=1,1 to reconnect GPRS first. 10.4. Remote AT command by SMS Q. Can I send any AT command by SMS to control other features described in this document? A. Yes. Please refer to Chapter 9.4. 10.5. I/O triggered AT command Q. Can I put any AT command to control other features described in this document? A. No. VAF AT commands described in this document cannot be executed by this feature. Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 32 11. Examples of VAF setup and operation 11.1. To setup a Automatic TCP connection To setup Auto connect to TCP server with IP 61.167.60.1 port 23 (client mode) Commands to be entered Modem response AT+IPGPRS=1,”INTERNET” (APN is INTERNET) AT+IPCTP = 23,”C”,”61.167.60.1”,100 (target TCP is 61.167.60.1, port 23, client mode, TxDelay is 100ms) AT+AUTOTCP=1 (open TCP socket connection) (TCP connection will start after 20 secs) OK OK OK To setup Auto connect to remote TCP client request with any IP address, port 23(server mode) 11.2. Commands to be entered Modem response AT+IPGPRS=1,”INTERNET” (APN is INTERNET) AT+IPCTP = 23,”C”,”255.255.255.255”, 100 (to accept TCP connection from any IP address, port 23, client mode, TxDelay is 100ms) AT+AUTOTCP=1 (open TCP socket connection) (Modem will start to monitor TCP port 23 after 20 secs) OK OK OK To make a AT command driven TCP connection IP Connectivity (AT# feature) user can follow the following steps to make OCTP connection To connect to TCP server with IP 61.167.60.1 port 23 Commands to be entered Modem response AT+IPGPRS=1,”INTERNET” (APN is INTERNET) AT+IPCTP = 23,”C”,”61.167.60.1”,100 (target TCP is 61.167.60.1, port 23, TxDelay is 100ms) AT+DLEMODE=1 AT+CGATT=1 AT+IPCONNECT=1,1 OK AT#APNSERV OK AT#TCPSERV AT#TCPPORT AT#TCPTXDELAY AT#DLEMODE AT+CGATT=1 AT#CONNECTIONSTART (GPRS connection) AT+OCTP (open TCP socket connection) OK OK OK OK OK CONNECT 115200 Corresponding AT# command AT#OCTP Confidential, the whole present document is the sole property of Fargo Telecom (Asia) Ltd. 33
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