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4.2.4. System variables

MT-301/302/303/304

has system variables connected to GSM/GPRS connection state

and power supply. Variables state is reflected by flags that can be used as transmission
triggers or in internal control programs.

FS1_ups = 1

loss of main power source - working on battery

FS1_gprs = 1 informs upon log off from GPRS network

4.3. LED diodes

There are three

LED

indicators

placed on

MT-30x

front panel

Their function is explained in chapter LED signaling.

4.4. SIM card

MT-30x

telemetry modules are equipped with standard miniature SIM card holder for

connecting card to GSM modem.

If use of GPRS transmission is intended the SIM card should have GPRS option and
possibility of login to APN for assigning static IP addresses activated. In absence of static IP
address, use of the module for GPRS transmission is impaired (only module can initiate

data transfer).

Proper placement of the SIM card is imperative for module's operation. The module accepts
only SIM cards operating in low potential technology 3,3V.

4.5. Antenna

Attachment of antenna is essential for proper operation of

MT-30x

telemetry module. SMA

socket is placed on module's front panel. The attached antenna has to secure appropriate

radio signal level enabling login to GSM network.

The type and placement of antenna has significant influence on module's sender/receiver
circuits. GSM signal level is reflected by value in input register 0x0024. Range of variable is

from 0 to 31 (99 - undefined value). If the value is lower than 40%, installation of antenna
with gain of directional antenna should be considered.

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Summary of Contents for MT-301

Page 1: ...T e l e me t r y M o d u l e s M T 3 0 1 3 0 2 3 0 3 3 0 4 t e l e me t r i ap l T e l e me t r y M o d u l e s M T 3 0 1 3 0 2 3 0 3 3 0 4 U s e r M a n u a l ...

Page 2: ...302 303 304 Telemetry Modules MT 301 302 303 304 User Manual GSM GPRS Telemetry Module for monitoring and control Class 1 Telecommunications Terminal Equipment for GSM 850 900 1800 1900 v5 04 INVENTIA Sp z o o ...

Page 3: ...powodowane lub rzekomo związane bezpośrednio lub pośrednio z niniejszym opracowaniem All rights reserved No parts of this work may be reproduced in any form or by any means graphic electronic or mechanical including photocopying recording taping or information storage and retrieval systems without the written permission of the publisher Products that are referred to in this document may be either ...

Page 4: ...ION PORT 13 5 5 POWER SUPPLY 14 6 STARTING THE MODULE 14 6 1 CONNECTING ANTENNA 15 6 2 FIRST CONFIGURATION 15 6 3 INSERTING SIM CARD 17 6 4 START UP 17 7 CONFIGURATION 17 7 1 GENERAL INFORMATIONS 17 7 2 PARAMETER GROUPS 18 7 2 1 Header 18 7 2 1 1 Module name 18 7 2 1 2 Module type 18 7 2 1 3 Module serial number 19 7 2 1 4 Firmware version 19 7 2 1 5 Configuration file version 19 7 2 1 6 Configura...

Page 5: ...9 7 2 5 2 2 2 2 1 Counting direction 29 7 2 5 2 2 2 2 2 Counting range 30 7 2 5 2 2 2 2 3 Filtering constant 30 7 2 5 2 3 Binary outputs Q1 Q2 30 7 2 5 2 3 1 Name 30 7 2 5 2 3 2 Operation mode 30 7 2 5 2 3 3 Output mode 31 7 2 5 2 3 4 Pulse duration 31 7 2 5 2 4 Analogue inputs A1 A8 31 7 2 5 2 4 1 Name 31 7 2 5 2 4 2 Operation mode 31 7 2 5 2 4 3 Engineering units 32 7 2 5 2 4 4 Low reference int...

Page 6: ... 9 1 GENERAL 44 9 2 GSM GPRS MODEM 44 9 3 POWER SUPPLY 45 9 4 BINARY INPUTS I1 I8 45 9 5 BINARY OUTPUTS Q1 Q2 45 9 6 ANALOGUE INPUTS A1 A2 45 9 7 DRAWINGS AND DIMENSIONS 46 10 SAFETY INFORMATIONS 46 10 1 WORKING ENVIRONMENT 46 10 2 ELECTRONIC EQUIPMENT 47 10 2 1 Heart pacemakers 47 10 2 2 Hearing aids 47 10 2 3 Other medical equipment 47 10 2 4 RF Marked equipment 47 10 3 EXPLOSIVE ENVIRONMENT 47 ...

Page 7: ...4 11 8 MEMORY MAP 54 11 8 1 Binary inputs space 54 11 8 2 Binary outputs space 55 11 8 3 Input Registers space 55 11 8 4 Internal registers space 56 ...

Page 8: ...onnection time rather than the amount of the transferred data In this situation the real time monitoring of units requiring constant supervision but generating a relatively small amount of data was not possible The situation changed radically after GSM operators introduced data transmission services in the GPRS General Packet Radio Services standard The new technology called the 2 5G standard mean...

Page 9: ... by a GSM operator providing GPRS and or SMS services The GPRS enabled SIM card has to be registered in the APN with static IP addressing The unique IP address of the SIM card is an identification for the module within the APN This enables module to module and module to server communication within the APN structure A good and strong GSM signal in the place where the module s antenna is located is ...

Page 10: ...ts each MT 301 outputs may also work as control lines for external analog inputs MUX device if set to appropriate working mode 4 1 4 Serial port The MT 301 302 303 304 telemetric modules are equipped with single RS 232 serial port This port is intended exclusively for the local configuration of the telemetry module s parameters The port should be connected to an external PC computer with the confi...

Page 11: ...ly configured clock counts the time setting after each completed period for one program cycle a flag in binary inputs space respective TMR1 TMR2 TMR3 TMR4 These flags can be used in internal controlling program or for triggering transmission on event In addition modules are equipped with ATR clock which is used for automatic resetting of the device with user declared frequency There is also possib...

Page 12: ...f login to APN for assigning static IP addresses activated In absence of static IP address use of the module for GPRS transmission is impaired only module can initiate data transfer Proper placement of the SIM card is imperative for module s operation The module accepts only SIM cards operating in low potential technology 3 3V 4 5 Antenna Attachment of antenna is essential for proper operation of ...

Page 13: ... main to backup battery is signaled by setting FS1_ups flag to 1 It can be used in event processing SMS and or data sending 4 7 Housing MT 30x modules are encapsulated in metal housing compliant with safety requirements and protecting the module in standard operating environment The applied solution complies with standard industrial requirements for DIN rail mounting 5 Connections scheme This chap...

Page 14: ...or counting input is identical to standard input connection for positive logic The only difference lays in counting of pulses appearing on the input and storing the result in a 32 bit register assigned to this input 5 2 Binary outputs Q1 Q2 Binary outputs Q1 Q2 support only positive logic signal Every binary output Q1 Q2 may work as bistable or monostable output This requires a change in the opera...

Page 15: ...passive output converter In order to enable measurement of more than two analog signals external multiplexer have to be used Special MT 301 s MUX working mode allows switching analog signals by one or two binary outputs respectively allowing for the processing of 4 or 8 analog signals supplied from analog input multiplexer on A1 A2 NOTE Analog inputs multiplexer is not available from the manufactu...

Page 16: ...ate external multiplexer It is possible to measure up to eight analog signals as shown in the top figure below The results of the measurements are placed in successive registers of Input Registers marked as A3 A8 5 4 Communication port PORT 1 RS232 configuration port Port not isolated used only for configuration purposes RJ 11 Descri ption DB 9 plug 2 GND mass 5 3 TXD transceiver output 2 4 RXD re...

Page 17: ...ower supply 2 GND Negative pole of power supply Connection diagram ATTENTION Improper power supply may result in faulty operation and damage the module 6 Starting the module Starting MT 301 302 303 304 module requires few basic activities Recommended sequence 1 GSM antenna attachment ATTENTION The antenna has to be attached at every power up since it is a necessary transmitter load The module exch...

Page 18: ... located on front panel The choice of antenna type depends on GSM signal propagation at place where the module is installed In most cases a standard small size antenna is sufficient Where GSM signal is weak using multi segment directional antenna may be necessary 6 2 First configuration First configuration of MT 301 302 303 304 is necessary for setting up basic parameters making logging to GSM net...

Page 19: ...PRS Yes if SMS and GPRS packet transmission is intended No if the module is to work in SMS mode only In GPRS group visible if Use of GPRS is set to Yes APN Name insert name of APN in which GPRS transmission is to take place APN User Name insert user name if required by Network Operator APN login password insert password if required by Network Operator ATTENTION Upon each writing of new configurati...

Page 20: ...rminals 6 4 Start up Properly configured and powered MT 301 302 303 304 telemetric module logs into GPRS network after several dozen seconds Sequence of logon presented by diagnostic LEDs located on front panel is described in LED signaling chapter In case of difficulties when logging into GPRS verify configured parameters To weak GSM signal may render log in impossible 7 Configuration 7 1 General...

Page 21: ...rameters vital for transmission reliability Authorized numbers group contains lists of phone numbers and IP addresses of other terminals authorized for communication with configured module Resources group defines parameters for hardware and software resources related to reading and processing measurement data Rules group contains lists of transmission tasks to be carried out upon occurrence of act...

Page 22: ...iguration Data type text Range n a Read only parameter Comments value depends on module s firmware version Auxiliary extension character defines the sub version 7 2 1 6 Configuration identifier Function displays identification of current configuration Data type hexadecimal Range n a read only parameter Comments the value of this parameter increases automatically by 1 after each successfully stored...

Page 23: ...ion defines PIN access code for SIM module delivered by GSM operator For SIM modules not protected by PIN code the value is insignificant Data type text Range letters and numerals max 8 characters Default value 0000 Comments wrong pin can cause locking of SIM module ATTENTION Caution is vital when setting the PIN code value Entering faulty PIN code may cause module start up to be impossible and lo...

Page 24: ...ion alterations The password does not protect against reading current configuration or the module status Data type text string Range letters and numerals max 32 characters Default value n a Comments since the only way of unlocking the module is resetting it to factory settings it is vital that the password is stored in a safe way and available when needed 7 2 2 5 Error display time Function Define...

Page 25: ... Function Controls backup power availability from internal Li Polymer battery Data type selection list List On backup battery turn on Off backup battery turn off Default value On Comments If backup battery option is turned on module power consumption may increase due to battery charging current 7 2 3 GPRS GPRS Group encompasses parameters connected to login and data transmission in GPRS system Par...

Page 26: ...r is not read in nor written manually after local configuration remote configuration of the module via GPRS will not be possible Forcing of IP address mode assigned by operator is serviced only in few GSM networks 7 2 3 5 Virtual static IP address Function defines IP address that will be placed in internal data header of frames sent by the module Data type IP number field Range 0 0 0 0 255 255 255...

Page 27: ... GPRS transmission retries 1 transmission Timeout For default values MaxT 3 1 12 48s Please notice that calculated value does not define the time of delivery but the time to elapse before the module considers that transmission to appointed IP address is not possible the data will be lost due to unavailability of recipient and moves to sending next data frame awaiting transmission 7 2 3 8 Idle time...

Page 28: ...me elapses Leaving recipient address at 0 0 0 0 sends data frames to module s own IP address Any other valid address within the APN is accepted as the recipient 7 2 3 10 Number of login retries Function Defines max number of login to GPRS network retries Each unsuccessful attempt changes the state of triggering input FS1_gprs from 0 to 1 and increases the failure counter by 1 After reaching declar...

Page 29: ...hone number list that will receive SMS messages Each phone number has defined privileges for SMS querying Data type number Range 0 32 Default value 1 Comments The range value defines required volume of phone numbers used in SMS Rules processing See more in Phone 7 2 4 2 Number of IP numbers Function Defines length of IP numbers list authorized to communicate with the module via GPRS Particular IP ...

Page 30: ...e configuration by this IP number Receiving depending on this setting data incoming from this IP will be accepted or rejected The list may be edited using context menu activated by right mouse click Available operations depend on the cursor placement When cursor rests on an entry all options are available while only Append is available with cursor resting on active window s background 7 2 5 Resour...

Page 31: ...puts Q1 and Q2 are available Q1 Multiplexer support is on control is done using Q1 binary output Binary output Q2 is available Number of available analog inputs increased to four A1 A4 Q1 Q2 Multiplexer support is on control is done using Q1 and Q2 binary outputs There are no binary outputs available Number of available analog inputs increased to eight A1 A8 Default value Off Comments using binary...

Page 32: ...s an influence on available configuration parameters optimizing module performance 7 2 5 2 2 2 1 Binary input 7 2 5 2 2 2 1 1 Filtering constant Function Defines in seconds value of min duration of altered state on input in order to consider state to be stable Data type number Range 0 00 163 83 s Default value 0 1 s Comments Setting value appropriate to contact characteristics eliminates disturban...

Page 33: ...ounce thus preventing multiple registration of what is in reality one pulse 7 2 5 2 3 Binary outputs Q1 Q2 MT 301 and MT 303 modules are equipped with respectively two and one Binary outputs Besides standard functionality outputs of MT 301 can be configured for driving external analog inputs multiplexer increasing number of available analog inputs 7 2 5 2 3 1 Name Function Enables entering friendl...

Page 34: ... 4 20mA standard Number of analogue inputs of MT 301 can be multiplied up to eight by using external analogue inputs multiplexer 7 2 5 2 4 1 Name Function Enables entering friendly name of input e g connected to the function performed The name is displayed on terminals list Data type text Range letters and numerals max 16 characters Default value Name of resource A1 A2 A3 MUX A8 MUX Comments Using...

Page 35: ...ce engineering units Function used along with other reference parameters for rescaling input signal range to engineering units range Data type number Range 0 10000 Default value 40 Comments low reference point for engineering units 7 2 5 2 4 6 High reference internal units Function used along with other reference parameters for rescaling input signal range to engineering units range Data type numb...

Page 36: ...ends on Alarm hysteresis value 7 2 5 2 4 10 Alarm Lo Function Defines Lo alarm level in engineering units for analogue input signal Data type number Range 0 10000 engineering units Default value 0 engineering units Comments Sets An Lo flag used for rules processing The reset level for this flag depends on Alarm hysteresis value 7 2 5 2 4 11 Alarm LoLo Function Defines LoLo alarm level in engineeri...

Page 37: ...start their work immediately after powering the module and continue as long as it is on power Additionally timers can be synchronized with module s internal RTC Timers have two Triggering inputs TMR1 and TMR2 which can be used for SMS data and or CLIP calls rules processing 7 2 5 3 1 1 RTC synchronization Function activates deactivates RTC synchronization Data type selection list List No synchroni...

Page 38: ...hat reads RS A reset will be done under condition of the presence of the module in a GSM network and sending SMS from the number that is on the lists of authorized telephone numbers 7 2 5 3 2 1 Start Function defines time of start of ATR timer Data type time HH mm Range 0 00 23 59 Default value 0 00 Comments n a 7 2 5 3 2 2 Value Function defines period of module resets by ATR timer Data type sele...

Page 39: ...rameter number of SMS sending rules to desired value 7 2 6 1 1 Number of SMS sending rules Function declares number of SMS sending rules Data type number Range 1 34 Default value 1 Comments diminishing the number of rules does not delete settings until the configuration is written to the module 7 2 6 1 2 SMS sending rule Each of the rules residing on the list is defined by following parameters Tri...

Page 40: ...ppendices 7 2 6 1 2 3 SMS text Function allows entering text sent in message triggered by defined rule Data type text Range letters numerals special characters max length 160 characters Default value Comments if the message will include the status of the module total length of SMS text and the status may not exceed 160 characters If the length is greater the text will be truncated so that full sta...

Page 41: ...ission conditions A defined data block or Status will be sent to appointed IP address Adding a new position is done in the context menu by right clicking mouse while one of positions on the list is highlighted Adding more rules is done by setting the parameter number of data sending rules to desired value 7 2 6 2 1 Number of data sending rules Function declares number of SMS sending rules Data typ...

Page 42: ...lue n a Comments more about trigger inputs and flags in chapter Appendices 7 2 6 2 1 1 3 IP address Function selects recipient s IP address Data type selection list Range friendly names of recipients associated with IP addresses in Authorized numbers list Default value IP1 first number on the list Comments since recipient s IP address is selected from the list of friendly names it is important to ...

Page 43: ...LIP calls rules Function declares number of CLIP calls rules Data type number Range 1 32 Default value 1 Comments diminishing the number of rules does not delete settings until the configuration is written to the module 7 2 6 3 2 Number of trials Function defines number of consecutive retries if the called number is busy or unavailable Data type number Range 0 255 Default value 3 Comments 0 zero v...

Page 44: ... inputs and flags in chapter Appendices 7 2 6 3 4 2 Trigger flag Function defines event triggering flag associated with selected trigger input Data type selection list Range n a rule inactive Bi In 0 1 Bi In 1 0 binary input state change Counter counter flip over up or down An LoLo An Lo An Hi An HiHi alarm threshold flags for analogue inputs signals Default value n a Comments more about trigger i...

Page 45: ... transmission depends on whether we configure it locally or remotely via GPRS For local configuration it is enough to secure a connection via RS 232 cable Detailed description of local configuration is to be found in the MTM user manual For remote configuration it is vital that the computer running the configuration application has access to the APN where the configured module resides Detailed des...

Page 46: ...receiving each sign 8 2 Unblocking of SIM card Three failed attempts of entering PIN code locks the SIM card and requires entering the PUK code In order to prevent this the module controls the number of failed attempts written into SIM card by allowing only two attempts making a third attempt impossible even if the third attempt was correct A double unsuccessful attempt is perceived as a fault req...

Page 47: ...below 0o C are not recommended because of LI Polymer battery requirements 9 2 GSM GPRS Modem WISMO Quick 2406B Modem type WISMO Quick 2406B GSM Dual Band GSM GPRS module EGSM900 1800 Frequency range EGSM 900 MHz Transceiver from 880 MHz to 915 MHz Receiver from 925 MHz to 960 MHz Peak transmitting power EGSM 900 MHz 33 dBm 2W class 4 station Frequency range EGSM 1800 MHz Transceiver from 1710 MHz ...

Page 48: ...for 12V DC Idle 0 02A Max 0 50A Internal battery Li Polymer 800mAh ATTENTION Inappropriate power supply may result in faulty operation or cause damage to MT 30X module 9 4 Binary inputs I1 I8 Input voltage range 0 30V Input resistance 5 4 k Input voltage ON 1 9V Input voltage OFF 0 0 3V Min pulse length 1 200ms 9 5 Binary outputs Q1 Q2 Recommended mean current for single output 50mA Single output ...

Page 49: ...meters 10 Safety informations 10 1 Working environment When deploying telemetry modules one has to observe and comply with local legislation and regulations Using the telemetry module in places where it can cause radio noise or other disturbances is strictly prohibited ...

Page 50: ...in order to make sure that the equipment is adequately protected against interference of radio frequency waves RF 10 2 4 RF Marked equipment The restriction against installing telemetry modules in areas marked as radio frequency RF prohibition zones must be unconditionally observed 10 3 Explosive environment Installation of telemetry modules in the environment where explosion hazard is present is ...

Page 51: ...otocols particularly UDP IP and TCP IP This technology is radically different from technologies employed by standard modems using GSM CSD commuted mode The main difference is the inability to transmit the stream of data directly in traditional serial protocols For transmission by GSM GPRS modem it is necessary to package data in frames compatible with employed protocol All procedures necessary for...

Page 52: ...dent of the route the addressed packet has to go between the sender and recipient terminal Usually this delay does not exceed a few seconds and is insignificant from a monitoring perspective In turn the possibility of creating networks independent of terrain topography and territorial size of the system is gained 11 1 4 EDGE EDGE Enhanced Data rates for GSM Evolution is a technology for data trans...

Page 53: ...e employed in systems where continuous monitoring is not imperative but alert when defined event occurs or an answer for enquiry is wanted SMS syntax is described in appendices 11 2 2 Using internal resources This configuration requires connecting MT 30x modules with a supervisory system As a central unit router MT 202 GPRS modem can be used where one acts as a gateway to a transmission system PLC...

Page 54: ...hem to Master unit GPRS is transparent in that mode 11 3 Syntax for reading and writing data in SMS mode Basic syntax Reading representation internal resource Module provides to read I1 I8 binary inputs Q1 Q2 binary outputs A1 A2 analogue inputs C1 C8 counters Writing internal resource Module provides to write Q1 Q2 binary outputs The value may be variable or constant It is for example possible to...

Page 55: ...nt to originator Confirmation SMS starts with sign 11 4 Data formats MT 301 302 303 304 module gives user a choice of data frame format standard standard operating mode The units communicate directly with each other in the APN using static IP addresses allocated permanently to used SIM cards In this mode IP addresses of communicating modules are written into authorized units lists Open The same co...

Page 56: ...re represented bitwise Analogue values are represented in engineering units 11 6 Trigger inputs During operation the internal system of MT 30x module creates a number of variables related to its inputs outputs and to module diagnostics Triggering inputs and triggering flags in conjunction with rules processing enable instantaneous reaction in occurring states User has access to following triggerin...

Page 57: ... than value set as Alarm Lo preserving relation to hysteresis An Hi A1 A2 A3_MUX A8_MUX Flag assuming value True if value if value of analogue input is higher than value set as Alarm Hi preserving relation to hysteresis An HiHi A1 A2 A3_MUX A8_MUX Flag assuming value True if value if value of analogue input is higher than value set as Alarm HiHi preserving relation to hysteresis 11 8 Memory map 11...

Page 58: ...y RTC_DofW 0x000A RTC day of month 1 31 RTC_Day 0x000B RTC month 1 12 RTC_Mon 0x000C RTC year 2000 2099 RTC_Year 0x000D Number of bytes sent by GPRS since power up 32 bit unsigned value high 16 bit 0x000E low 16 bit 0x000F Number of bytes received from GPRS since power up 32 bit unsigned value high 16 bit 0x0010 low 16 bit 0x0011 SMS counter 16 bit value 0x0012 Login into GPRS tries 16 bit value 0...

Page 59: ... HIGH byte LOW byte 0x0000 32 bit counter input I1 CNT_I1 high 16 bit 0x0001 low 16 bit 0x0002 32 bit counter input I2 CNT_I2 high 16 bit 0x0003 low 16 bit 0x0004 32 bit counter input I3 CNT_I3 high 16 bit 0x0005 low 16 bit 0x0006 32 bit counter input I4 CNT_I4 high 16 bit 0x0007 low 16 bit 0x0008 32 bit counter input I5 CNT_I5 high 16 bit 0x0009 low 16 bit 0x000A 32 bit counter input I6 CNT_I6 hi...

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