Xpert/XLite GPRS SLL User Manual
Contents
1. SUTRON A 4 O ISO 9001 2000 9210 amp XPERT DATALOGGERS GPRS Manual Part No 8800 1194 Version 3 18 June 22 2015 Sutron Corporation 22400 Davis Drive Sterling Virginia 20164 TEL 703 406 2800 FAX 703 406 2801 WEB http www sutron com Table of Contents INtrOQuUCNON sss EEE UES A A ENA 5 NEW FEATURES iii a INGO 6 TastallA TION EA A wa cto E a 7 O E mo 7 Before getting started eeina e NN AO 8 ES LS ESUS ESL E 9 A a 10 PRS Properties E aros eLo 10 Enabled sss UU Ad 11 lei T khhe eer EET TI TTT time ab ses gtk coe AT 11 Mod DAN 11 ModemUserName and ModemPassword ccsscecesseeessececseeeeceeeeeceeeeecsueeeeeteeeesaes 11 Mod mPIN sss ra pa kn o a SAG ao enle 11 Radio Band su aii EN E SIU aid 12 GPRS PONES SIA oa 12 PwrOnlnterval PwrOnTime PwrOnDuration cccoococcnocccnnnnccnnncnonnnnnonnncncnnnacinnnos 12 PwWrOmA CtiOM spu a SUSAN diia LI 13 GPRS Relay DEVINOS pe o NU a ro af loos 13 PowerContolsia ss Ss RA o a a so LA 14 O 14 GPRS Connection OS A AA ARS 14 PrimaryIP and SecondaryIP sss SKIO 15 MessagePort CommandPort and RedirectorPort ooococnnocccnnncccnoncnononcconanaconanccinnnos 15 EVE OS 16 ESDShoulderTap viiossnaan dadas ado is ladran 16 GPRS Transmission SEM iii 16 TAM ado 16 E 17 IRPONMA noticia 17 Num VALUES puntada ALD NE da 17 A A a 18 Cota o a NS NL GA Sua 18 GPRS SMS Sel sss ESE Nu 18 jed ITT TTT TETTE TTT TTT TITT 19 ESO E A ET TAI Rn a uci dR ce ian2. This can only be done when the Xpert application is not running select Exit App from the Status tab In order for the libraries to load and operate correctly the versions of the files must be the same as the version of the application loaded into the Xpert This is usually not a concern because the same versions of the slls and application are typically packaged together Should the need arise to verify that the versions are the same the version of a sll as it resides on the PC can be determined by looking at the file s properties right click on the file and select the Version tab The version of the Xpert application is given by the application itself at the top of the About dialog which is accessed from the Status tab Before getting started Typically the purpose of using the GPRS SLL is to provide internet services to an RTU and hence the LAN is not available and not used but during initial testing setup it s very convenient to take advantage of it The problem is that if the internal LAN is turned on then GPRS messages will be sent using the LAN and not the GPRS device To avoid this you should just go to the LAN Settings Setup entry and turn it off LAN Settings Current State of pre Auto can save some power over On when LAN cable is normally unplugged Lan Configuration LAN is in use by Settings View Config Figure 1 Turning the LAN off Configuring the serial ports for GPRS operat
3. The GPRS Diagnostics Tab may be used to test communications over GPRS and examine the communication status Modem status Main Setup Sensors GPRS GPRS Iridium Log Dai 1 Modern status Standby Off Tests Next task Pwron Next task time 19 59 00 19 57 26 Last SMS No messages Signal quality 000 la Power control ON OFF Selftimed statistics Alarm statistics Figure 16 GPRS Diagnostics Tab Modem status describes the current state of GPRS processing and may be any one of the values in the following table Status Description Alarm Tx Alarm transmission in progress App Stop System is being shutdown Comm Error An error has occurred talking to modem check connection to modem DailyMaint System is storing and resetting daily counts Disabled Off GPRS is disabled and off Disabled On GPRS is disabled but power is still on Force Power Off The OFF button was pressed in the GPRS Diagnostics Dialog Force Power On The ON button was pressed in the GPRS Diagnostics Dialog GPRS Denied A connection to the GPRS network could not be made GPRS Ignore A GPRS connection could not be established and the Xpert is moving 28 forward with GSM support but will still try to establish a GPRS connection as needed GPRS Ready GPRS is registered GPRS Roaming GPRS could
4. Content value of Last no longer means just the last value but the last Num Values values A Tx Content value of All no longer means all values since last transmission but all values up to Num Values Tagging Data with EzSetup Tagging data for GPRS transmission in EzSetup requires placing a check next to the GPRS button and then pressing the GPRS button to select the properties 25 Sensor Configuration Name Ran Sensor ripeckt e Mora Mog avg Misr Miers sat sr ORo TRAS Dfiseo COM Tac M ALM Rt Digits E value 2 00 a Module fi Te Slope ko Channel fa LI Offset po Figure 13 EzSetup Configuration lt Pressing the GPRS button will bring up the same GPRS Block Properties Dialog as described above Edit Tag Label Rain Tx Content All Data Time Data Interval Num Values Sequence Right Digits Figure 14 GPRS Tag in EzSetup Basic Entry Setup Tab A Basic program can format custom GPRS messages Any of the Basic string functions can be used to format the buffer as required but the Bin and Bin6 functions exist specifically to help forming 8 bit and 6 bit binary encoded data To create a self timed formatting routine create a function with a SELFTIMED prefix The return value of the function becomes the buffer For example Public Function SELFTIMED STFor
5. EG ETT TITT IMI 19 ANAT a Ko dao SKON sn es E ED SAN E E TO Eo dd es e 20 NON LIS SEK KA SS SS o o e ooj 20 Noti Litunia 21 SetupPassword and DataPassword ccesssscesncecssececesececeeececesececsceeceseceeseeeeesseees 21 setupUserList and DataUserlist id di AA A uda da sad 21 SMS Command pIOCeSSlNS us sss sis UD A an Eia 22 Selecting Data for Transmission with the GPRS block eeeeeeeseeeiii 23 AarmBlock Properties RS 23 GPRS Block Properties SE ENE 24 Tagging Data with EZSetip ss su aa SRN a a saka 25 Basic Entry gt Setup a i ND IS a a a aj 26 Testing GPRS Operations ss sss n A DON ST etme tito 28 The GPRS Diagnostics Taba a 28 Moderato liar 28 TE E do 30 A Ko KT asus te athe o da SK an a E EDE AN E occa To So saute Ade es eso tunes 30 NE ss KN IS SSS So us e taj 30 TIMES sU US LG E EUN onan 30 BASSMO a spato vi ek na E ut se ske EE 30 lu PO A TET TTT TETTE 31 Signal Quality ari 31 A 8 uk kap kk 31 ON Sud 31 0 S I aa sk Uo e o E nk ade al PLu 31 Seltimedstas tes sss o A ru i ankle 31 Alarm Sta KN a kaa 31 GPRS Test Diallo fy somo iaa 31 SMS Test LLAMAS E A E 32 Selftimed Test TranSsMISslON sus si NNN SANU ANA 33 Troubleshoot Esses kaa a e tin 35 Appendix A Telemetry Formats a A A A a ES 36 PLAN AT EKos a i ae IPERE EEE EEE E E E ma T TE 36 NEDRS and NIFC FOrMAtS dices satay AS LU ao 36 Pseudobinary Formats aicese nienie UL 38 Pseudobinary B Interleaved and Non Interleaved oo
6. and TxList has a phone number in it the user will receive text messages with self timed transmissions every time a self timed transmission doesn t get through to the master station using the GPRS link While it s not always possible there are circumstances where a GSM SMS text message can get through when a GPRS data transmission cannot The format of the SMS self timed transmission will be based on the TxFormat set in GPRS settings Expect if the format is SSP due to it being in binary in that case Text will be used CAUTION SMS transmissions whether scheduled or fallback are limited to 160 bytes of data Users will have to limit their data sent per transmission or else the SMS message may not be able to contain it all TxList Allows to user to choose what phone numbers get the self timed and alarm transmissions based on what TxMode and or AlarmEnable is set too Separate phone numbers with a comma Alarms When Alarms is checked and TxList has a phone number in it the Xpert shall also send alarm messages via SMS The SMS message is human readable and includes the station name so the user does not need to know the station identified by the phone number The time is also included to account for the delays in delivery The date is not included as the delays are expected to be short The alarm transmissions format of what sensor data gets sent is based on whether the user set AlarmData to All Sensors or
7. desired settings to configure the appropriate bands and then the AT amp W command must be issued to save the changes Depending on the provider some of the other settings such as ATHPLMNMODE ATHENS and ATASELINT may need to be checked or changed GPRS Power Settings The GPRS power settings are accessed by selecting the Power item under GPRS in the Setup tab and clicking Edit This dialog contains settings that determine when the GPRS modem should be powered on how it should be powered on and what it should do when powered on GPRS Power Settings PwrOnInterval PwrOnTime 00 59 00 ie Cancel I dili PwrOnDuration bo 58 00 a Figure 4 GPRS Power Settings Dialog PwrOnlnterval PwrOnTime PwrOnDuration PwrOnTime PwrOnlnterval and PwrOnDuration are used to specify when the modem is powered PwrOnlnterval specifies how often to power on PwrOnTime specifies an offset to the interval and PwrOnDuration specifies how long to stay powered For example with PwrOnlnterval 01 00 00 PwrOnTime 00 30 00 and PwrOnDuration 00 15 00 the modem will be powered on every hour at half past the hour and will stay powered for 15 minutes Also the GPRS modem generally needs to be reset to maintain health which why even if the PwrOnTime PwrOnlnterval and PwrOnDuration specify essentially a never ending By powering on the GPRS modem the user is given the ability to commun
8. example of a Text format message RTUO1 12 22 lt cr gt lt 1f gt STAGE 4 55 G H R lt cr gt lt lf gt RAIN 2 0 G OK lt cr gt lt lf gt The message begins with the station s name RTUO1 and the current time in HH MM 12 22 format followed by a list of sensor readings containing the name of the sensor STAGE the value 4 55 the quality G and the alarm status H R In the above example H R indicates that STAGE is experiencing a high limit and high rate of change alarm while the OK status for RAIN indicates that it is within expected limits Quality codes G Good quality B Bad quality U Undefined quality Alarm codes H High limit exceeded L Low limit exceeded R High Rate of change OK Normal cc 66 A after a code indicates that the sensor has just entered that state while a after a code indicates that the sensor has just exited that state 43 GPRS Session Protocol GPRS follows a protocol when sending self timed and alarm transmissions that permits the server to issue commands This protocol is often referred to as Session Type 0 The protocol helps support communications to a device which has a non routable IP address as many IP cell modems provide Session Type O does not apply to SSP transmissions The following is a description of the protocol Course of Events 1 Logger connects to Main or Backup Server 2 Logger sends Session Ty
9. not establish a connection to the home network and is currently roaming on a partner network GPRS Search GPRS is still trying to establish a connection to a tower GSM Denied A connection to the GSM network could not be made GSM Ready GSM is registered GSM Roaming GSM could not establish a connection to the home network and is currently roaming on a partner network GSM Search GSM is still trying to establish a connection to a tower Modem Chg A change to the modem settings has been made and is being applied Power Off Modem is powering off Power On Modem is powering on Property Chg A setup change is taking effect Reconnect A GPRS connection unexpectedly dropped and is being reconnected Reschedule A setup change requires events to be rescheduled SelfTimed Tx Self timed transmission in progress Send Alarm An alarm tx is being scheduled SMS Notify An SMS notification message is being sent SSP CL Chg A change to the SSP CL and or Transmission settings has been made and is being applied Standby Off Modem is not powered and is ready for next task Standby On Modem is powered up due to the power settings and is ready for next task Standby On Modem is powered up to handle a temporary condition such as transmission outside the normal power up cycle an alarm transmission or a call back operation Starting System is starting up Stopped GPRS processing ha
10. IER is always sent as C to indicate that this is the pseudobinary C format Group ID 1 GROUP ID can be 1 to indicate a scheduled transmission 2 meaning an alarm transmission and 3 indicating a forced transmission Measurement 1 This byte is always a and it is used to denote Delimiter the start of measurement data Measurement 1 The Sequence number assigned by user in the Index output telemetry settings This value is encoded 6 Sequence bit binary Typically the sequence number assigned is unique allowing you to uniquely identify the data point Day 2 This 2 byte encoded 6 bit binary encoded number represents the Julian day of the year The day tells when the most recent first sensor reading of this measurement was made Time 2 This 2 byte encoded 6 bit binary encoded number is a number of minutes into the day It tells when the most recent first sensor reading of this measurement was made Interval 2 This 2 byte encoded 6 bit binary encoded number tells the measurement interval in minutes or the amount of time between readings of this measurement Measurement 3 for each Sensor data encoded 6 bit binary Data sensor reading Additional Variable If more than one measurement was setup for 39 Measurements transmission more data will follow Each measurement setup will have data starting with the Measurement Delimiter and ending with Measurement Data Final 1 This byte
11. Single Sensor An example of the Text format used for SMS alarm messages RTUO1 12 22 lt cr gt lt lf gt STAGE 4 55 G H R lt cr gt lt lf gt RAIN 2 0 G OK lt cr gt lt lf gt The message begins with the station s name RTUO1 and the current time in HH MM 12 22 format followed by a list of sensor readings containing the name of the sensor STAGE the value 4 55 the quality G and the alarm status H R In the above example H R indicates that STAGE is experiencing a high limit and high rate of change alarm while the OK status for RAIN indicates that it is within expected limits Quality codes G Good quality B Bad quality U Undefined quality Alarm codes H High limit exceeded L Low limit exceeded R High Rate of change OK Normal 66 66 A after a code indicates that the sensor has just entered that state while a after a code indicates that the sensor has just exited that state CAUTION SMS alarm transmissions are limited to 160 bytes of data Users will have to limit their data sent per transmission or else the SMS message may not be able to contain it all Notify The Xpert shall report the following events via SMS to the list of phone numbers in NotifyList e Station Rebooted Indicates that the Xpert unit has rebooted 20 e Recording on off Indicates that the Xpert unit has turned recording on Recording on or recording off Recordin
12. Tags dialog When more entries exist than can be shown in the dialog scroll bars appear allowing you to scroll to other entries From this dialog you can change the value of the TxContent property for each data item in the list You can also press the button to access and change other properties in the block s properties dialog GPRS SMS Settings The GPRS SMS settings are accessed by selecting the SMS item under GPRS in the Setup tab and clicking Edit This dialog contains settings that determine how the GPRS modem transmits manages sending and receiving SMS text messages 18 GPRS SMS Settings TxMode Scheduled n E o TxList 555 5555 NotifyList DataPassword SetupPassword DataUserList SetupUserList Figure 9 SMS Settings TxMode TxMode allows the user to receive self timed transmissions using SMS communication An example of this is when wanting to receive self timed transmissions through your phone When TxMode is set to Scheduled and TxList has a phone number in it the user will receive text messages with self timed transmissions every time a self timed transmission 1s supposed to occur based on TxInterval and TxTime in GPRS Transmission settings If the self timed transmission does not get through to the master station the SMS self timed transmission will be delayed due to the retries but will still be attempted When TxMode is set to Fallback
13. b A AD E 28 SMS Test TANSTRISSION uman E E oe l SA iza 32 Selftimed Test NTANSIMISS ION sss SSL ida 33 SSP Test Transmission ss E EKS a a 34 INTRODUCTION Sutron s Xpert family of DCPs both the 9210 and the Xpert hereafter referred to as the Xpert have been designed to be easily expandable by adding additional software libraries called Sutron Link Libraries SLLs One such library is GPRS sll which adds the ability for the Xpert to communicate using a Sutron GPRS modem connected to a serial port The GPRS SLL permits TCP IP access to or from the station supports data messages in various formats alarms and SMS text messaging as well This document is the user manual for GPRS sll The following topics are discussed e How to install the library e How to configure the Xpert for GPRS communications e Diagnostics NEW FEATURES Initial release INSTALLATION This section describes the installation and configuration of the GPRS sll library Installation GPRS sll is required for GPRS operation To install the library copy the GPRS sll file to the Flash Disk subdirectory of your Xpert using Xterm For more information on performing this file transfer please refer to chapter 6 of the Xpert or 9210 user manual Once the files have been transferred reboot the Xpert The libraries will load automatically after the Xpert reboots To uninstall the libraries use Xterm to delete the files from the Flash Disk subdirectory
14. d C formats contain 8 characters which cannot be sent over SMS using the standard GSM 7 bit character set without inserting additional characters This is undesirable as it would reduce the number of bytes that can be sent over SMS from 160 to 80 in the worst case To work around this limitation SMS messages that contain a Pseudobinary message will automatically be translated to replace non supported 41 characters with supported characters Please note that this requires that the characters be translated back upon reception and before they can be passed to a decoder The following table describes the character translation that s performed ORIGINAL REPLACEMENT HEX HEX 5B 31 5C 32 5D 33 5E 34 60 35 7B 36 7C 37 7D 38 7E 39 VEO YOoOdOAO0NnN io SHEF and SHEFFIX Formats SHEF format conforms to NESDIS Standard Decimal format specifications The format is ASCII and readable by persons without the aid of a computer The standard decimal format is human readable while binary formats require some processing before the values can be read The standard decimal format is generally twice as long as the binary transmission This means that less data can be sent in the same amount of time using the standard decimal format An example of a standard decimal format message is shown below This message comes from a station with three sensors in the self timed group The sensors have been named HG PC and TA The batte
15. data budget for a station but as it doesn t include overhead it will be significantly low Alarm statistics Displays the following information about alarm transmissions Last Tx Tx today Tx bytes today GPRS Test Dialog The GPRS Test Dialog is used to send test transmissions using SMS Selftimed or SSP messaging Select the type of transmission enter a test message and other related information and press Send 31 SMS Test Transmission The SMS Test Transmission screen us used to verify SMS text message operation SMS messaging requires GSM services which may operate in areas where GPRS service is not available GPRS Test SMS Test Message The station has been deployed Phone 555 555 5555 mi Last No messages Select test transmission O sms O selftimed O SSP Figure 17 SMS Test Transmission The fields in the SMS Test Transmission Dialog are defined as follows SMS Test Message Enter a message to send Phone Enter the phone number to send the SMS message Send Send the message Last The last SMS message received More The last 5 SMS messages received Select test transmission Select SMS 32 Selftimed Test Transmission The Selftimed Test Transmission screen is used to verify GPRS messaging An ASCII message is sent to the server using the session type 0 header GPRS Test Selftimed Test Message Test message 123 y IP www sutron co Po
16. es with a few seconds pause between each attempt The Xpert shall repeat this cycle until a connection succeeds MessagePort CommandPort and RedirectorPort The Xpert can connect to a master station for different purposes and in order for the master station and firewalls to sort out that purpose specific TCP IP ports are used If you do not wish to use a service you may specify 0 for the port value The values entered here should agree with the values used by the master station and any firewalls in between e Message Port used to receive self timed and alarm transmissions from the Xpert in various ASCII data formats or SSP e Command Port used for SSP CL command processing so that the user can change the setup and view data in the Xpert directly through something like Tempest e Redirector Port used for third party SSP CL communications redirected to Xpert so the user can change the setup and view data An example would be if the user could not log onto Tempest directly he or she can use something like a HyperTerminal session to communicate to the Tempest to contact the Xpert unit 15 ServerPassword If not blank the GPRS Modem will use this password when accessing the server This is used for authentication purposes CSDShoulderTap When enabled CSDShoulderTap allows the user to call the modem using the phone number given to the GPRS SIM card The modem then will connect to what s set to Command Port a
17. f MyAuthCode the incoming message content would be MyAuthCode reboot SetupUserList and DataUserList These two properties are authorization settings that require the phone number stated in the Authlist to be used to validate incoming command messages Both SetupUserList and DataUserList are only enabled in addition to the SetupPassword and DataPassword being enabled A better explanation about how it s used is if the SetupUserList property specifies a phone number while SetupPassword is blank then a user from any phone number can send a setup command with no code and the command will be processed However if SetupUserList property is blank while SetupPassword has a code then the user must have the code regardless of his phone number For example if he or she wants to send the reboot command he or she needs to use the SetupPassword string as well send the SMS message with command from the phone number listed in SetupUserList SMS command Reboot SetupPassword sutron 21 SetupUserList 555 555 5555 Phone used 888 888 8888 amp sending the command sutronReboot Response from GPRS modem invalid authorization Phone used 555 555 5555 amp sending the command sutronReboot Response from GPRS modem command processed and system rebooted SMS command processing If the user wants to change the setup in the GPRS settings or gather status information about the Xpert from the GPRS modem he or she can use their p
18. f the GPRS modem and wanted to connect to it the GPRS modem s PwrOnAction would need to be set to Listen in order for the modem to connect to Tempest using a Telnet or TCP IP session Finally if a user connects to the unit remotely with one of the ways mentioned above and the self timed and or alarm transmission fails to reach the master station the user will get logged out regardless of what the user timeout value is set to in the user settings GPRS Relay Settings The Relay button brings up a further dialog which allows power to the modem to be controlled by a relay connected to a digital I O point and to control the warm up time GPRS Relay Settings Power Control Dig 1 0 O DTR Module li y Channel i y Invert Output 7 Cancel WarmUp po E seconds Figure 5 GPRS Relay Settings Dialog Power Control Power to Sutron s GPRS modem is supplied and managed using 12V DC hardware selectable jumper via PIN 9 of the RS232 port In this case select DTR and enter a WarmUp delay of at least 10 seconds When using other modems it may be desirable to control power via a relay When a connection is made DTR is always asserted to the device For non Sutron modems which can enter standby mode when DTR is low this may be sufficient but power to the device may be controlled by a digital switch or relay When Dig VO is selected an I O Module and Channel may be selected This output will be tur
19. f the GPRS modem This functionality was setup for a user that couldn t communicate with the GPRS over VPN or Public IP It gives the user the almost the same abilities as if he or she were using the master station to communicate to the GPRS modem Selecting Data for Transmission with the GPRS block Sensor data can be tagged for transmission in two ways using either the Graphical Setup or the EzSetup The properties are the same whether you are working in the Graphical Setup or EzSetup Using the Graphical Setup you need to attach a GPRS block found under the Telemetry category to an output you d like to have transmitted and then configure the block Here s an example of the order we suggest that the blocks be created and connected together Ce ere il Alarm IS ComsTacMeasure Log Figure 10 GPRS block in Graphical Setup In the setup depicted above the GPRS block tags a measured data point that of Air Temp AT Here are some important notes about the setup e The GPRS block appears after Alarm block This ensures the GPRS block sees the result of the alarm evaluation triggering alarm transmissions if needed Of course the Alarm block is only required if your system will evaluate data for Alarm and or alarm transmissions e The GPRS block appears before the ComsTag block This ensures the ComsTag sees the alarm transmission status generated by the Alarm and GPRS blocks e The ComsTag block is required fo
20. g off e GPRS connect failure Indicates that GPRS services may not currently be available a given cell tower may support GSM SMS services but not GPRS or that there s something wrong with the APN settings the account the provider etc e Shoulder tap failure If GPRS is unable to perform a shoulder tap that s been requested by the user using SMS the command line or by ringing the cell modem CSDShoulderTap Yes then it should send an STAP failed could not connect SMS notification message The shoulder tap requires making a TCP IP connection to the IP and port specified by the command or the primary IP and command port if other settings were not supplied NotifyList Allows to user to choose what phone numbers get the SMS notification for SMSNotifyEnable s events Separate phone numbers with a comma SetupPassword and DataPassword These two properties specify authorization codes used to validate incoming command messages SetupPassword specifies the authorization code for setup level access while DataPassword specifies the authorization code for data level access Incoming command messages have setup level access by default When the SetupPassword property contains an authorization string any and all incoming messages that normally require setup level access to be processed must prefix the command with the authorization code For example to command the station to reboot with an authorization code o
21. haracters The only exception is that 127 ASCII DEL is sent as 63 ASCII 19 Example 1 Encoding the number 10 in 1 byte Since 10 will fit in 6 bits we only have to add 64 which would yield 74 So the number 10 would appear as ASCII 74 or the letter J Example 2 Encoding the number 12345 in 3 bytes First we have to convert 12345 into binary in 6 bit pieces 12345 base 10 11 000000 111001 base 2 Now we can convert each piece back to base 10 11 000000 111001 base 2 3 0 57 Finally we add 64 to each piece and convert to ASCII 67 64 121 ASCII CO y Example 3 Encoding the number 12345 in 3 bytes First we have to convert 12345 into two s complement 18 bit binary 12345 base 10 111100 111111 000111 base 2 Now we can convert each piece back to base 10 111100 111111 000111 base 2 60 63 7 Finally we add 64 to each piece and convert to ASCII since the second piece is 63 we leave it alone 124 63 71 ASCII I G Example 4 Decoding the 3 byte string SW This is just like encoding except we follow the steps backward First we convert all the characters to ASCII decimal codes ASCIL SW 64 83 87 Now we subtract 64 from each piece and convert to 6 bit binary 0 19 23 000000 010011 010111 Finally we combine all the bits to form one 18 bit two s complement number and convert to base 10 000000010011010111 1239 Pseudobinary B C over SMS Format The Pseudobinary B an
22. hone to do it The following commands are supported via SMS Call home shoulder tap connect to SSP CL STAP url port Call home with optional IP Port connect to redirector port specified REDIR url port To set or show if a setting isn t provided the PrimaryIP SecondaryIP MessagePort CommandPort RedirectPort The URL and PORT values are user input SETPIP url SETSIP url SETMP port SETCP port SETRP port Check power status or turn power temporarily on or off until the next power cycle POWER ONIOFF Command line commands Any responses that are generated as a result of the command shall be sent via SMS to the original sender The responses shall be limited in length by the max SMS message length Also if the SetupPassword and or DataPassword are enabled the user must type the authcode string before the command in order for authorization of the command to happen An example SetupPassword sutron On the phone send a text message to phone number of the GPRS modem with the command Reboot and the authentication code like this sutron reboot 22 Also if the SetupUserList is enabled the user must send the command with the authorization code from that specific number listed in the SetupUserList But be aware that if there is no SetupPassword enabled then it doesn t matter if SetupUserList has a phone number because the user can send the command from any phone and change the setup o
23. icate with the Xpert over a TELNET TCP IP SSP CL and SMS session via the master station As well as send self timed and or alarm transmissions this can be done without the power mode settings enabled too The primary reason to turn off the modem is to reduce power consumption or limit time connected to the Cell network Please note that if the LAN is powered on at the same time that the GPRS is powered on that the LAN will be preferred and may cause a conflict This is similar to how when you enable WiFi on a cell phone communications will whenever possible be routed using the WiFi interface and not the 3G PwrOnAction If set to Connect the modem will use the PrimaryIP address and connect to the master station using the port set for Command Port and establish an SSP CL session according to the PwrOn schedule This mode is meant as an option for one way systems For example if the user was using Tempest and didn t know the IP address of the GPRS modem but wanted to connect to it the GPRS modem s PwrOnAction would need to be set to Connect in order for the modem to connect to Tempest using a SSP CL session If set to Listen the default setting the modem will connect to any master station that initiates a connection This is as long PwrOnlnterval PwrOnTime and PwrOnDuration are set to power the GPRS at the time of this operation For example if the user was using Tempest and knew the IP address o
24. in Avg Wind Spd USH x x 10 Min Avg Wind Dir UDH x x Air Temperature TAH x x Fuel Temperature MTH x 10 Min Avg Rel Hum XRH x x Battery Voltage VBH x x Barometric Pressure PAH Peak Wind Direction UGX Peak Wind Speed UPH 36 Fuel Moisture MMH Solar Radiation RDH Here s an example NIFC telemetry report 00 00 000 270 328 110 100 14 0 000 000 020 0486 Here s an example NFDRS telemetry report 00 00 000 270 328 110 100 14 0 000 000 020 0486 Note how there are no labels in the report This is because the position of the data within the report determines the source of the data 37 Pseudobinary Formats Pseudobinary formats produce ASCII reports of 6 bit pseudo binary formatted data values The formats are pseudo binary because each sensor value is expressed in the range of ASCII characters but not in such a way that is readily human readable Pseudobinary B Interleaved and Non Interleaved The Pseudobinary B Interleaved format is identical to the 8210 binary transmission format Interleaved means the most recent values of all sensors come first followed by the next most recent and so on Non interleaved means all the data for sensor is followed by all the data for sensor 2 and so on i e the data is not interleaved according to time This pseudobinary format cannot be easily read by a person Here s is an example mes
25. ion may require changes to the registry that will require a reboot before they take effect When this situation can be detected you will be notified of the need to reboot However it cannot always be detected If you experience any difficulties establishing a connection when setting up a port for the first time try rebooting the Xpert FEATURES This section discusses what features are supported related to GPRS communications Self timed scheduled telemetry of data using TCP IP messaging and or SMS text messages Alarm telemetry of data using TCP IP or SMS Support for standard Xpert network services when used with a VPN or static IP such as Telnet Web Server XTerm Scheduled and manually initiated processing of incoming command messages Diagnostic support including O O O Scheduling details Next self timed message content and size Recent incoming messages Signal strength Total message and byte counting Projected data usage CONFIGURATION This section discusses how to configure the Xpert to operate with the GPRS modem There are three different places you 1l go to use and configure the Xpert for GPRS communications e GPRS Properties Setup Tab e GPRS Blocks Graphical Setup and EzSetup e Basic Entry Setup Tab The first and the one this section discusses in detail is an entry under the Setup Tab named GPRS This entry is used to configure how Xpert talks GPRS over a selected communication por
26. is always and it is used to denote the Delimiter end of all measurement data Battery 1 This is the battery voltage measured prior to voltage making the transmission The range of the number will be 32 to 31 and can be converted to volts by multiplying by 0 234 and adding 10 6 allowing a range of 3 1 to 18 1 volts Example Pseudobinary C message C3 ADGTU BDGTU UI CDGTU v L Group 3 format C Sequence A 1 Julian Day DG 263 Time TU 21 41 Interval 00 1 Data missing Sequence B 2 Julian Day DG 263 Time TU 21 41 Interval 00 1 Data QUI 1353 Sequence e 3 Julian Day DG 263 Time TU 21 41 Interval 00 1 Data Prev 74 missing Batt V L 13 4 Six Bit Binary Encoded Format The six bit binary format is used to encode numbers into displayable ASCII characters Notice that fractional numbers cannot be represented so for instance a battery voltage of 13 04 volts set up with 2 right digits will be sent as 1304 e Al byte encoded number can range from 32 to 31 e A 2 byte encoded number can range from 2048 to 2047 e A 3 byte encoded number can range from 131072 to 131071 Binary encoded numbers are always sent most significant bytes first The number itself is broken down into 6 bit digits and each digit is placed in one byte of data The number 64 ASCII is added to each digit to make it fall within the range of displayable 40 ASCII c
27. matter Selftimed STFormatter Test Selftimed Message End Function 26 To create an alarm formatting routine create a function with an ALARM prefix and a single parameter in which the group number will be passed The return value of the function becomes the buffer For example Public Function ALARM Formatter Group ALARM Formatter Test Alarm Reporting Message Str Group End Function It s possible to append to the buffer as opposed to simply overwriting it by taking advantage of string concatenation The following example appends its message to the current buffer Public Function SELFTIMED STFormatter SELFTIMED STFormatter SELFTIMED STFormatter Test Selftimed Message End Function More than one formatting function can exist in your program but only one self timed and one alarm function may be active at one time The active routine is selected in the Iridium Custom Formatting entry under Basic on the Setup tab Setup Sensors GPRS Iridium Data Lo Basic Custom Formatting Satlink GPRS Iridium Scheduled Subroutines coms EzSetup Measurements GPRS Figure 15 GPRS Custom Formatting Entry 27 TESTING GPRS OPERATIONS This section describes how the GPRS Diagnostics Tab may be used to test out GPRS communications The GPRS Diagnostics Tab
28. mmand prompt e Inhibits pagination doesn t pause to wait for user input after outputting a full page of data Alternate Paths Following send of ETX logger disconnects the user specific timeout Sixty 60 seconds is permitted for login Logger disconnects on failed login 45
29. n Standard Protocol binary format Text ASCII human readable text format with alarm flags See Appendix A Telemetry Formats for detailed definitions of each of the formats Num Values When the selected format is interleaved e g PseudoBin B the number of data values to include for each selected data item must be the same for all selected items and so is entered in this dialog rather than where it is normally entered in the GPRS telemetry block properties For example if Num Values is 4 and GPRS blocks tag the two data points HG and HF then the last 4 values of HG and HF appear in the transmit message AlarmData AlarmData can be either SensorsInAlarm or AllSensors When set to the latter alarm transmissions contain the same data as is found in self timed transmissions 1 e all data tagged with an GPRS block in the Graphical Setup as well any data ponts tagged in EzSetup However when AlarmData is SensorsInAlarm only the data triggering the alarm is included in the transmission Content When you press the Content button on the GPRS Transmission Settings dialog the Set Tx Content dialog opens showing a list of all GPRS blocks in the Graphical Setup as well as any data points tagged in EzSetup Select Tx Content 1 VB individual e 2 AT individual 3 STAGE individual o 4 Rain individual e i Cancel Figure 8 Select
30. ned on before a GPRS connection is attempted The output is assumed to be open collector hence on means OV is output If the output instead uses positive logic the Invert Output box may be checked WarmUp WarmUp is the number of seconds to allow the modem to warm up after asserting power before trying to establish a connection It applies to both the Dig I O and DTR settings GPRS Connection Settings The GPRS connection settings are accessed by selecting the Connect item under GPRS in the Setup tab and clicking Edit This dialog contains settings that determine how the GPRS modem connects to TCP IP based internet servers These connections may be used for control or data transmission purposes GPRS Connection Settings PrimaryIP www sutron com SecondaryIP MessagePort 2023 CommandPort 2024 RedirectorPort 2025 ServerPassword CSDShoulderTap Figure 6 GPRS Connection Settings Dialog PrimaryIP and SecondaryIP Static IP s and VPN access are not always available which means it will not always be possible for a server to establish a connection with the Xpert To deal with this the Xpert can be configured to initiate contact with a server and send messages or wait for commands When the GPRS modem initiates a connection to the master station the Xpert tries using PrimaryIP up to a certain number of times and then try SecondaryIP up to a certain number of tim
31. ns every hour while 00 30 00 means every half hourTypical rates are 01 00 00 for hourly transmissions and 04 00 00 for transmissions every 4 hours TxTime This property defines an offet to TxInterval It has the same format as TxInterval A TxTime of 00 15 00 means 15 minutes after the hour Some examples of transmission schedules are shown in the table below TxInterval TxTime Transmission Schedule 01 00 00 00 00 00 12AM 1AM 2AM 12PM 1PM 2PM 02 00 00 00 00 00 12AM 2AM 4AM 12PM 2PM 4PM 01 00 00 00 30 00 12 30AM 1 30AM 2 30AM 12 30PM 1 30PM 04 00 00 00 15 00 12 15AM 4 15AM 8 15AM 12 15PM 4 15PM TxFormat This property defines the format of the data sent in self timed transmissions as well as alarm transmissions when AlarmData AllSensors The following formats are supported PseudoBin B 6 bit binary format interleaved PseudoBin B Non Int 6 bit binary format non interleaved PseudoBin C 6 bit binary format non interleaved with additional meta data SHEF ASCII human readable format using SHEF codes SHEFFIX ASCII human readable format using SHEF codes where data appears in fixed width format of 7 chars NIFC ASCII human readable format based on NIFC requirements NFRDS ASCII human readable format based on NFRDS requirements Handar ASCII human readable format SSP Sutro
32. ns the time that the next task is scheduled to start Time The current time is displayed as a reference Last SMS Displays the last SMS text message received 30 More If multiple text messages have been received pushing this button will display the last 5 Signal Quality Displays the last measured cell signal strength in terms of bars or in dBm with bit error rate The dBm value can range from 51 strong to 113 weak For reference 75 is considered 5 bars and 105 is considered 2 bars The bit error rate will vary from 0 2 best to 12 8 worst Often the bit error rate is a better indicator of quality than signal strength Update Pressing the Update button will cause the signal strength to update for 2 minutes or until the button is pressed again As it updates a tone is output by the Xpert that s proportional to the signal strength The higher in frequency the better the signal This can be used to aid in aiming the antenna ON Pressing ON turns the GPRS radio on until the next scheduled off time OFF Pressing OFF turns the GPRS radio off until the next scheduled on time GPRS will still turn on as needed for transmissions Selftimed statisitics Displays the following information about self timed transmissions Last Tx Tx Today Next Tx Time Next Tx msg Next Tx size Est Tx bytes day and Tx bytes today The estimate Tx bytes day can be used to help estimate the
33. nsmission See the following table for details Tx Content Description of data to transmit All All the data logged for the output since the last transmission will be transmitted Individual Individual values logged for the output since the last transmission will be transmitted Data Interval The time interval between readings For example 01 00 00 means hourly data Data Time The time or offset into the interval of the data to include For example 00 15 00 means include data measured on a 15 minute offset Num Values Number of values for each data item to include in the transmission Last Only the last value measured will be transmitted Exclude Do not transmit this output Sequence This property determines the order of the data item within the transmission Right Digits This property determines the number of right digits to include in the transmission These properties determine what data is included in transmissions and its sequence in the transmission if applicable to the selected format The value of Tx Content can be All Individual Last or Exclude as described below Setting Tx Content will enable or disable other properties Note When Pseudobinary B an interleaved format is the selected format the user defines a Num Values setting for all outputs in the GPRS Transmission Settings Dialog and the meaning of the Tx Content property on each output changes A Tx
34. ntenance but it s configured to turn on only when transmitting you may try sending the SMS command POWER ON to the station The SMS command won t be able to go through while the modem is powered off but it may get through on a retry or if you happen to time it for when the station is transmitting Contact Sutron Customer Support at 703 406 2800 35 APPENDIX A TELEMETRY FORMATS This appendix contains descriptions for each of the telemetry formats supported by Xpert Iridium Handar Format The Handar format is an ASCII human readable format where sensors are separated by CRLF sensor data is separated with a space and missing data is reported as M For example 010034380517419 21 30G42 0NN155E9200070 1 3 1 3 1 3 1 3 2 4 2 4 2 4 2 4 M 12 2 12 2 12 2 12 2 12 3 12 3 12 3 NFDRS and NIFC Formats The NFDRS National Fire Danger Rating System and NIFC National Interagency Fire Center formats produce reports of human readable ASCII values using SHEF codes as labels for data The labels applied to measurement outputs are used to identify the data to include in the report The following table shows what labels are recognized be the NIFC and NFDRS formatter An x means the sensor label must appear in the setup for the formatter to succeed The items with no x are recognized and will be formatted but are not required Sensor Label NIFC NFDRS Rainfall PCH x x 10 M
35. ooconoccnococinccnoncconcnonancnoncnonennnos 38 Pseudobinary C Formatore a e E A IO 39 Six Bit Binary Encoded Format siau sss sana a sse 40 Pseudobinary B C over SMS Format ssssssssessessesssssesanesessessessnssessssessssesesscs 41 SHEF and SHEFEFIX Formats ti SF aa 42 o di LOT a PaE EEEE NE EE IE E EEEE E ae panes TE E 43 Text Pots 43 GPRS Session Prol066l sss sran trineos ask ksa a n 44 Table of Figures Figure l T rni ng the LAN Off veuninnii il a 8 Figure 2 The GPRS entry on Setup abis sa sa skan asb o ka Nos 10 Fibute 3 GPRS Properties Alo uso so A MA a Rae ad 11 Figure 4 GPRS Power Settings Dialog ss a 12 Figure 5 GPRS Relay Settings Dialog mutilados 14 Figure 6 GPRS Connection Settings DialO8 ooooonnncccnoncccnnncncnoncnononcconnncconnnccnnnnanonnncno 15 Figure 7 GPRS Transmission Settings dialO8 ocoonnncccnoncccnoncncnoncnononcnonnncnonnncnonnncncnnnnnos 16 Figures select Tags daloties ia A da 18 Figure 9 SMS Settings init A eed 19 Figure 10 GPRS block in Graphical Setup ooooonococonccccnonccononcnononanononcnononononnncconnncncnnnnnos 23 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Alarm Block Dialogos ainda ici SN 24 GPRS Edit Tag Dilo tae 24 EzSetup Conlisurauon at 26 GPRS Tag Tr BZSell Aa 26 GPRS Custom Formatting Entry 0 cece eececesncecesececeeeeeceeeeeceeeeeceneeeeseeeesaes 27 GPRS Diagnostics La
36. pe Code lt cr gt see below 3 Logger sends StationName lt cr gt 4 Logger sends Report Type Code lt cr gt to indicate purpose of connection see below ve Logger sends scheduled or alarm transmission data if any 6 Logger sends ETX 0x03 to mark end of data 7 Logger sends a 3 byte pseudobinary encoded CRC 16 of previous data and a shared secret 8 Server sends user login command login username password lt cr gt and waits for logger reply ETX 9 If user login matches logger enters command line session see operational details below 10 Server issues pending commands and Logger processes and responds accordingly 11 When command processing complete the Server disconnects Session Type Code Session type defines the processing that occurs on connection Currently there is only one session type 0 This type is defined by the Course of Events above and details that follow 0 defined by Course of Events above Report Type Code Report Type code describes the purpose of the transmission 0 self timed 2 entering alarm 4 exiting alarm 6 no data command session only Command line Session Details 44 wen The server may precede each command with a to signal machine mode When processing a command in machine mode the logger e Suppresses the command echo e Uses ETX 0x03 as the command prompt i e follows the command response with ETX rather than the normal co
37. r SSP telemetry but even when not using the SSP format it allows the value to be displayed on the Data tab and or accessed via the command prompt and SMS commands Alarm Block Properties The Alarm block is a standard block used to define high limits low limits and rate of change The block is discussed in detail in the Xpert manual but one interesting feature to note is that Alarm blocks may be stringed together to handle multiple conditions 23 Alarm Properties Enable Hi Alarm V Enable Low Alarm M Hi Limit B8 Low Limit 66 x Hi Mode Above y Low Mode Below y ROC Mode Off ROC Fixed Interval V ROC Lvl fo Alert on ROC Alarm Deadband Figure 11 Alarm Block Dialog GPRS Block Properties To view and edit the properties of the GPRS block tap the block and select Edit Properties in the pop up menu that results in EzSetup simply press the GPRS button The following dialog is shown Label Tx Content Data Time Data Interval Num Values Sequence Right Digits Figure 12 GPRS Edit Tag Dialog The GPRS Edit Tag dialog is used to edit the properties of the GPRS block that tags the data point for transmission Label Label defines the name of the data Some formats e g SHEF include this Label in the transmission 24 TxContent Datalnterval DataTime NumValues These properties define what data to include in the tra
38. rt fu F Select test transmission Osms 90 selftimed O SSP Figure 18 Selftimed Test Transmission The fields in the Selftimed Test Transmission Dialog are defined as follows Selftimed Test Message Enter a message to send IP Enter the IP address or URL of the server that is to receive the message Port TCP IP port number of the service handling Selftimed messages on the server Select test transmission Select Selftimed SSP Test Transmission The SSP Test Transmission screen us used to verify SSP messaging over GPRS by transmitting an SSP mail message to the specified server or RTU and verifying that the message was acknowledged 33 GPRS Test SSP Mail Message Testing 123 l I IP ww sutron com Mi Port 23 Ki Last No mail Select test transmission Osms O selftimed SSFP Figure 19 SSP Test Transmission The fields in the SSP Test Transmission Dialog are defined as follows SSP Test Message Enter a message to send IP Enter the IP address or URL of the server or RTU that is to receive the message Port TCP IP port number of the service handling SSP messages on the server The default SSP service on an RTU is the Telnet service which used port 23 Send Send the message Last The last SSP message received More The last 5 SSP messages received Select test transmission Select SSP 34 TROUBLESHOOTING 10 11 Did you check to make sure tha
39. ry voltage is the voltage of the battery just prior to transmission G 0 1 10 20 10 15 PC 0 15 50 49 TA 0 15 22 Precip Temperature Battery Older gauge reading by data interval time Newest gauge reading Data Interval Offset Time Gauge Height The names HG PC TA and VB used in the transmission are called SHEF Physical Element codes PE codes and are the names given to the outputs in the 8310 Be sure to change the output names if you want specific codes sent in the transmission NESDIS has a recommended list of SHEF PE codes on its website at http noaasis noaa gov DCS htmfiles schefcodes html 42 SHEF Fixed is a special version of the SHEF format where numbers are fixed to seven decimal points SSP Format SSP is a binary format following the specifications of the Sutron Standard Protocol which is useful when transmitting to XConnect or Tempest master stations If you are interested in knowing more about the low level details of the protocol please contact Sutron Customer Service Text Format The Text format is an ASCII human readable format intended to convey the current status of the sensors quality and alarm state It is similar in format to the SHOW command and is intended for alarm messages It s also the default format for SMS Alarm messages when SMSAlarmsEnable are enabled Sensor readings are separated by lt CRLF gt while fields in the sensor data are separated with a space An
40. s long the modem can connect to the PrimaryIP or SecondaryIP This gives the user another way of making the GPRS modem connect to a master station such as Tempest The reason we have this settings is because if the user did not have a static ip address of the GPRS modem but had the phone number of the GPRS he or she can call the number or send a text with the command STAP By calling the number or sending the text and the Xpert is powering the GPRS using PwrOnTime PwrOnInterval and PwrOnDuration the GPRS will create a SSP CL connection to the master station even if the GPRS s PwrOnAction Listen If sending a text the user will receive a text message saying Created SSP CL session to PrimaryIP user set GPRS Transmission Settings The GPRS transmission settings are accessed by selecting the Transmit item under GPRS in the Setup tab and clicking Edit This dialog contains settings that determine how the GPRS modem transmits data to TCP IP based internet servers GPRS Transmission Settings TxInterval 00 15 00 e ok TxTime 0 00 05 on TxFormat Text x Content Num Values 4 Bi AlarmData Sensorsmalarm y Figure 7 GPRS Transmission Settings dialog TxInterval TxInterval defines how often to transmit self timed messages The format of the string is hh mm ss where hh hours mm minutes and ss seconds For example 01 00 00 mea
41. s stopped no transmissions will occur Stopping System is stopping In addition while a GPRS network connection is being established there are additional status messages that may be display during the process as follows 29 Network Connection Status Description All Devices Connected A network link has been established Authenticated The network link has been authenticated Authentication Acknowledged A request for authentication is being acknowledged Authentication Notify Authentication is needed Authentication Retry Authentication with different credentials has been requested Connected Network connection has been established Connecting Device A connection is about to be started Device Connected A connection has been made to the modem not the network Device Setup The modem port is being configured Disconnected The connection has been terminated or failed Opening Port The modem port is being opened Password Expired Password has expired Retry Authentication Retrying authentication Starting Authentication Authentication is being performed Tests Pressing this button will bring up the GPRS Test Dialog see below Next task The next task that s scheduled to occur and may be Nothing DailyMaint PwrOff PwrOn Reschedule SMSNotify SelfTimed Alarm Reconnect or AppStop Next task time Contai
42. sage B1ICEGCESxELIEGSESTrECLII P Voltage Temp 12 Precip 2 Stage 42 Temp 1 Precip 1 Stage 1 Delta Time Group ID Block ID Pseudobinary B Format Name Bytes Description Block ID 1 BLOCK IDENTIFIER is always sent as B to indicate that this is the pseudobinary B format Group ID if GROUP ID can be 1 to indicate a scheduled transmission 2 meaning an alarm transmission and 3 indicating a forced transmission Delta Time 1 Age in minutes of the most recent data Data 3x num Data in either interleaved or non interleaved sensors format The example above shows the data interleaved most recent of all sensors followed by next oldest and so on See the section below Six Bit Binary Encoded Format for details on how these values are encoded 38 Battery 1 Voltage Logger battery voltage measured just prior to transmission Pseudobinary C Format The Pseudobinary C format also produces an ASCII report of 6 bit pseudo binary formatted values but with additional fields to describe label and time information Just as the B version of the format this format is pseudo binary because each sensor value and descriptor is expressed in the range of ASCII characters but not in such a way that is readily human readable Pseudobinary C Format Name Bytes Description Block ID 1 BLOCK IDENTIF
43. sword These are used to login to the cell service provider For some providers they can be blank but otherwise use the value assigned by the provider or by Sutron ModemPIN The SIM PIN unlock code This must be specified 1f the SIM being used is locked The GPRS Diagnostics Tab will warn if a SIM PIN is needed and hasn t been entered Entering the wrong PIN can cause the modem to become blocked so be carefully especially when swapping SIMs Radio Band The Sutron GPRS modem supports multiple bands Typically in the US the Quad Mode can be used but internationally you may need to select the specific band to prevent frequency hopping and or roaming Normally when a modem is connected to the Xpert for the first time it is factory reset and programmed to work with pre configured settings The Use Modem Setting may be used to bypass this initialization and use the settings that were pre programmed in to the modem This allows many of the modem settings to be customized in the modem The Janus T2 Modem and the Sutron HSDPA Modem enables support for those specific 3G capable modems but the settings are similar to the Use Modem Setting in that they use the band s which have been pre configured in to the modem If the default settings are unable to connect to the Cell provider custom settings may be needed and the manual s for the modem should be consulted Typically the ATHBND and ATHAUTOBND need to be issued with the
44. t Main Setup Sensors GPRS Iridium Log nal Lo Basic H Coms EZSetup Measurements Connect Transmit SMS H Graphical Setup v Edit Figure 2 The GPRS entry on Setup Tab GPRS Properties To access the dialog containing GPRS configuration properties select the GPRS entry and press Edit The following dialog appears 10 GPRS Properties Enabled vw p Comm Port comz y Cancel ModemAaPN telargo t mobilecom ModemUserName ModemPassword ModemPIN Radio Band Quad Mode default y ajajaja Figure 3 GPRS Properties Dialog The GPRS Properties dialog contains setting for configuring the GPRS modem hardware Here are the options provided by this dialog Enabled This property must be set to YES to enable GPRS processing including self timed and alarm transmissions via GPRS and or SMS communication and command processing Port This defines the serial port the GPRS device will be connected to lt None gt will disable GPRS support To use a serial port for GPRS you will need to make sure it s not already in use for something else The port settings are fixed at 115200 n 8 1 With RTS CTS hardware handshaking ModemAPN The APN name is used to connect the modem to the internet It varies based on the provider of the cell service For T Mobile a typical value is telargo t mobile com ModemUserName and ModemPas
45. t Remote Coms Basic or any other part of the system isn t trying to use the com port you wish to use for GPRS Issuing status at the command prompt will list all ports that Remote has been configured to support Did you check to make sure the LAN device is turned off If you just configured a serial port for the first time have you tried rebooting the unit Observe the GPRS Diagnostics Tab while a connection is attempted and verify that connections are being scheduled and watch for an issue during the connection negotiation Verify that the GPRS device is being powered up correctly by pressing ON in the GPRS Diagnostics Tab Issuing report high or even report debug at the command prompt is a good way to get real time diagnostic information about the performance of the GPRS SLL and the system in general You can monitor SSP messaging by issuing report ssp SSP over TCP IP messages may be viewed by issuing report ssp0 or the options may even be combined by issuing report ssp ssp0 The system status page will show information about the most recent diagnostic messages and the current state of the GPRS device This can also be displayed on demand at the command prompt with the info command The system log can be examined to look for status messages connection errors and transmission errors Use the GPRS Diagnostic page to send test mail messages If you need to reach your station for mai
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