SRT278 AVANT Fleet Serial Cable Operation
Contents
1. Command AT AIN2 Response AIN2 ymv OK y AIN2 voltage in mV AT AUX AUXALARM input Command AT AUX Response AUX y OK y AUXALARM input level HIGH or LOW AT AUXCTRL AUXCTRL input Command AT AUXCTRL Response AUXCTRL y OK y AUXCTRL input level HIGH or LOW AT BAT Battery voltage Command AT BAT Response fBAT ymV OK y Battery charge in mV AT DEF Write default settings Command AT DEF Response OK AT GPSOFF GPSOFF input Command AT GPSOFF Response GPSOFF y OK y GPSOFF PRV input level HIGH or LOW AT IGN Ignition Command AT IGN Response fIGN y OK y Ignition state HIGH or LOW AT IR IR input Command AT IR Response AIR y OK y IR input level HIGH or LOW AT MODEMMODE Modem Mode input Command AT MODEMMODE Response MODEMMODE y OK y Modem Mode input level HIGH or LOW Note Currently not used AT MP Main power voltage Command AT MP Response MP ymV OK y Main power voltage in mV AT PB Push button input Command AT PB Response PB y OK Digital input level HIGH or LOW AT PBIN SRT278 Fleet binary protocol Command AT PBIN XK KK2. Response PBIN a b n yy yy possibly multiple lines OK XX XX Hex representation of the binary command or configuration to execute yy yy Hex representation of the binary response to the above command a Response line number Always starts with 1 for the first response for every command If the response requires multiple lines the value is increased by one for each line b Total response lines n Number of hex characters in the current line s data field AT PIN Set clear PIN Command AT PIN xxxx Response 0X Command AT PIN Response PIN SET OK Response PIN NONE OK XXXX PIN code to use An empty string will clear the setting AT RLI20 Connect Relay IN to Relay OUT Command AT RLI2O x Response 0X X 1 to connect relay in to out 0 to not connect relay in to out Note The relay connection will reset right away AT TEMP Temperature reading Command AT TEMP Response TEMP Xy YYYY OK Response TEMP NONE OK X or y yyyy Temperature in degrees Celcius NONE Temperature sensor not detected AT VER Version information Command AT VER Response VER SRT278 Fleet x x x Build d d SRT HW z PIC y OK X X X GSM firmware version Three numbers major version minor version and revision PIC firmware version one number Hardware revision one number QN
3. M d Build date for GSM firmware month dd yyyy hh mm ss AT VIB Vibration sensor status Command AT VIB Response VIB y OK y Vibration sensor state HIGH or LOW Appendix C Hardware connectors This section is intended as a quick reference for the connectors locations and the numbering for Control A Control B and Control C pins Please refer to the document SRT278 Avant Fleet User s Manual for details about the connectors Control A 9 1 8 Control C Control B
4. SRT278 AVANT Fleet Serial Cable Operation Document Revision 1 1 3 July 2011 5 Control amp f Operating modes Normal mode This is the intended operating mode where the unit is not connected to anything through its serial connector Communication with the unit is carried out through SMS or GPRS UDP The unit will run in normal mode if the serial connector is either unplugged or the RTS signal is disabled left floating Normal mode with debug output For diagnostics the unit can have the serial connector enabled for debug output and still remain in normal operating mode This is accomplished by plugging in the serial connector while leaving the RTS signal disabled left floating and setting the signal DBGMODE Pin B 2 high for example by connecting it to VBATT Pin B 1 A terminal program capable of handling serial communication at 115200bps 8 data bits 1 stop bit and no parity with flow control disabled is required to monitor the debug output External configuration and test mode For local configuration and diagnostics the unit can be started in a configuration mode where normal events and other functions are disabled This is accomplished by plugging in the serial connector to a computer while the GSM is not active and having the signal DBGMODE Pin B 2 left floating A terminal program capable of handling serial communication at 115200bps 8 data bits 1 stop bit and no parity wit
5. h flow control enabled is required to use this mode The configuration mode will be maintained for as long as the RTS signal is active normally as long as the serial cable is connected and the terminal program running Programming mode Programming mode is required to safely upgrade the firmware In order to enter programming mode make sure the GSM is off and the serial cable is not connected then connect the signal DBGMODE Pin B 2 input to VBATT Pin B 1 and then connect the serial cable to a computer running a terminal program capable of handling serial communication at 115200bps 8 data bits 1 stop bit and no parity with flow control enabled Manual firmware upload Caution Erroneous firmware upgrades may result in a non operating unit Start the unit in programming mode and send the command AT FWFORMAT to the unit The unit should then eventually respond with OK Proceed with the command AT FWUPLOAD to upload the new firmware Depending on the terminal program of choice may or may not output a continuous sequence of a single character Proceed with transfer of the firmware file by X Modem Finally provided the transfer was successful install the firmware with the command AT FWINSTALL The unit should respond with Installing followed by a restart Caution Only use firmware files supplied by SRT in the sff format when updating the firmware When done disconnect the serial cable Appendix A Upgrade examp
6. le MP SRT278 Fleet 9 1 0 Build Jun 23 2011 08 41 09 SRT 1017840 R7 44 0 201008311212 02687RD 8192 22544 C Copyright Scandinavian Radio Technol 2011 07 26 09 30 01 PREPARING PROGRAMMING MO HAO E STARTING PROGRAMMING MODE PROGRAMMING MODE READY AT FWFORMAT Format 0 Format 8 Format 16 Format 24 Format 33 Format 41 Format 49 Format 57 Format 66 Format 74 Format 82 Format 90 Format 100 X Modem upload of the 9 1 1 firmware file prior to Of AT EWINSTALL AT FWUPLOAD SSSSS Packets 1422 72 OK AT FWINSTALL Installing OK MP SRT278 Fleet 9 1 1 Build Jul 25 2011 ogy AB 10 09 02 SRT 1017820 R7 44 0 201008311212 02687RD 8192 22564 C Copyright Scandinavian Radio Technol 2011 07 26 09 33 39 IRMWARE UPDATI acetal d E PREPARING PROGRAMMING MODE S E P TARTING PROGRAMMING MODE ROGRAMMING MODE READY ogy AB Appendix B Commands in external mode Caution These commands are for testing purposes only and may vary for different firmware revisions AT AIN1 AIN1 voltage Command AT AIN1 Response AINI ymv OK y AINI voltage in mV AT AIN2 AIN2 voltage
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