INVENTIA MT-151 User manual

Telemetry Module
GSM/GPRS Telemetry Module for
monitoring and control
User Manual
MT-151 LED V2
Class 1 Telecommunications Terminal Equipment for
GSM 850/900/1800/1900
UMTS 800/850/900/1900/2100
INVENTIA Sp. z o.o.
MT-151 LED V2
v2.03

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Mobicon MT-151 LED V2 User Manual
© 2019 Inventia Sp. z o.o.
Publisher:
MT-151 LED V2
v2.03.01
1/2/2019
Edition:
Firmware compability:
2.03
INVENTIASp. z o.o.
ul. Kulczyńskiego 14
02-777 Warszawa
Tel: [phone]
[e-mail]
www.inventia.pl
Require MTManager:
5.2.3.27 or higher

I
Index
© 2019 Inventia Sp. z o.o.
INDEX
I Module destination 1
II GSM requirements 2
III How to use the manual 3
IV Required programs 4
V Module design 5
................................................................................................................................... 51 Hardware resources
.......................................................................................................................................................... 6Binary inputs .......................................................................................................................................................... 6Binary outputs
.......................................................................................................................................................... 6Analog inputs 4-20mA
.......................................................................................................................................................... 6Analog inputs 0-10V
.......................................................................................................................................................... 6Serial ports .......................................................................................................................................................... 6Ethernet port .......................................................................................................................................................... 6USBport .......................................................................................................................................................... 7SD card reader
.......................................................................................................................................................... 7Real time clock
................................................................................................................................... 72 Internal resources
.......................................................................................................................................................... 7Logger .......................................................................................................................................................... 7Registers .......................................................................................................................................................... 8Counters .......................................................................................................................................................... 8Timers .......................................................................................................................................................... 8MT2MT buffer .......................................................................................................................................................... 8Constant parameters
.......................................................................................................................................................... 8System flags .......................................................................................................................................................... 8Control program
................................................................................................................................... 103 LEDs
................................................................................................................................... 104 SIM cardsslots
................................................................................................................................... 105 Antenna
................................................................................................................................... 106 Power supply
................................................................................................................................... 107 Enclosure
VI Connection diagrams 11
................................................................................................................................... 111 Binary inputs
................................................................................................................................... 122 Binary outputs
................................................................................................................................... 123 Analog inputs 4-20mA
................................................................................................................................... 134 Analog inputs0-10V
................................................................................................................................... 145 Communication ports
................................................................................................................................... 156 GSM antenna
................................................................................................................................... 167 SIM card installation
................................................................................................................................... 178 SD memory card installation
................................................................................................................................... 189 Power supply

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© 2019 Inventia Sp. z o.o.
VII Starting the module 19
VIII Interfaces and communication methods 21
................................................................................................................................... 211 Serial ports
.......................................................................................................................................................... 21Transparent mode
.......................................................................................................................................................... 21Modbus Master mode
.......................................................................................................................................................... 22Modbus Slave mode
.......................................................................................................................................................... 22Flex Serial .......................................................................................................................................................... 23M-Bus
................................................................................................................................... 242 Ethernet port
.......................................................................................................................................................... 24Modbus TCP Client
.......................................................................................................................................................... 25Modbus TCP Server
................................................................................................................................... 253 Remote communication
.......................................................................................................................................................... 25Dual-SIM
................................................................................................................................... 254 SNMP protocol
................................................................................................................................... 275 IEC 60870-5-104 protocol
IX Configuration 29
................................................................................................................................... 291 Header
.......................................................................................................................................................... 29Module name
.......................................................................................................................................................... 29Module type .......................................................................................................................................................... 30Module serial number
.......................................................................................................................................................... 30Modem firmware version
.......................................................................................................................................................... 30IMEI number .......................................................................................................................................................... 30Firmware version
.......................................................................................................................................................... 30Configuration file version
.......................................................................................................................................................... 30Configuration identifier
.......................................................................................................................................................... 30Last configuration date
.......................................................................................................................................................... 31Last reading time
................................................................................................................................... 312 General
.......................................................................................................................................................... 31Device identifier
.......................................................................................................................................................... 31Module IP .......................................................................................................................................................... 32Configuration password
.......................................................................................................................................................... 32Configuration read disable
.......................................................................................................................................................... 32Error display time
.......................................................................................................................................................... 32Recipient UDP port
.......................................................................................................................................................... 33UDP data frame format
.......................................................................................................................................................... 33GPRS transmission retries number
.......................................................................................................................................................... 33Transmission timeout
.......................................................................................................................................................... 33Time synchronization
.......................................................................................................................................................... 34Module phone number (SIM1/SIM2)
.......................................................................................................................................................... 34Set local time
.......................................................................................................................................................... 34Transmission channel
.......................................................................................................................................................... 35Address .......................................................................................................................................................... 35Time sync interval (days)
................................................................................................................................... 353 GSM
.......................................................................................................................................................... 35Number of SIM cards
.......................................................................................................................................................... 35Use of GPRS .......................................................................................................................................................... 36Use of SMS .......................................................................................................................................................... 36SIM1 ......................................................................................................................................................... 36Address IP
......................................................................................................................................................... 36SIMcard PINnumber
......................................................................................................................................................... 37APNname

III
Index
© 2019 Inventia Sp. z o.o.
......................................................................................................................................................... 37Authorization
......................................................................................................................................................... 37APNuser name
......................................................................................................................................................... 37APNpassword
......................................................................................................................................................... 37GPRS testing interval (ping)
......................................................................................................................................................... 38GPRS testing address (ping)
......................................................................................................................................................... 38Roaming .......................................................................................................................................................... 38SIM2 ......................................................................................................................................................... 38Address IP
......................................................................................................................................................... 39SIMcard PINnumber
......................................................................................................................................................... 39APNname......................................................................................................................................................... 39Authorization
......................................................................................................................................................... 39APNuser name
......................................................................................................................................................... 39APNpassword
......................................................................................................................................................... 40GPRS testing interval (ping)
......................................................................................................................................................... 40GPRS testing address (ping)
......................................................................................................................................................... 40Roaming .......................................................................................................................................................... 40GPRS ......................................................................................................................................................... 41Sender IPaddress control
......................................................................................................................................................... 41Wait time after disconnection
.......................................................................................................................................................... 41SMS ......................................................................................................................................................... 41Daily SMS limit
......................................................................................................................................................... 42Number of SMS sending retries
......................................................................................................................................................... 42SMS limit exceed information
......................................................................................................................................................... 42Recipient of SMS limit exceed information
......................................................................................................................................................... 42Answer for blank SMS
......................................................................................................................................................... 42Incoming SMS handling
......................................................................................................................................................... 44Buffer address holding incoming SMS (HREG)
......................................................................................................................................................... 44Buffer address holding sender phone number (HREG)
......................................................................................................................................................... 44Buffer address holding outgoing SMS (HREG)
......................................................................................................................................................... 45Buffer address holding receiver phone number (HREG)
......................................................................................................................................................... 45Formats ......................................................................................................................................... 45Date format ......................................................................................................................................... 45Time format
......................................................................................................................................................... 46Symbolic names ......................................................................................................................................... 46Number of symbolic names
......................................................................................................................................... 46Symbolic name table
......................................................................................................................................................... 46Macros ......................................................................................................................................... 47Number of macros
......................................................................................................................................... 47Macro table
.......................................................................................................................................................... 47Authorized numbers
......................................................................................................................................................... 47Number of phone numbers
......................................................................................................................................................... 47Number of IPaddresses
......................................................................................................................................................... 48Numbers fromSIMphone-book always allowed
......................................................................................................................................................... 48Phone ......................................................................................................................................................... 48IP
................................................................................................................................... 494 Resources
.......................................................................................................................................................... 49Binary inputs (I1 - I16)
......................................................................................................................................................... 49Name ......................................................................................................................................................... 49Input type ......................................................................................................................................................... 49Filtering ......................................................................................................................................................... 49Flow calculation trigger
......................................................................................................................................................... 50Flow scaling
......................................................................................................................................................... 50Impulse weight - multiplier
......................................................................................................................................................... 50Impulse weight - divider
......................................................................................................................................................... 51Offset - engineering units
......................................................................................................................................................... 51Hi alarm- engineering units
......................................................................................................................................................... 51Lo alarm- engineering units
......................................................................................................................................................... 51Alarmhysteresis - engineering units

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.......................................................................................................................................................... 52Binary outputs (Q1 - Q12)
......................................................................................................................................................... 52Name ......................................................................................................................................................... 52Input type ......................................................................................................................................................... 52Filtering .......................................................................................................................................................... 52Analog inputs 4-20mA (AI1 - AI4)
......................................................................................................................................................... 52Sampling frequency
......................................................................................................................................................... 53Name ......................................................................................................................................................... 53Engineering units
......................................................................................................................................................... 53Low reference - internal units
......................................................................................................................................................... 53Low reference - engineering units
......................................................................................................................................................... 54High reference - internal units
......................................................................................................................................................... 54High reference - engineering units
......................................................................................................................................................... 54HiHi alarm- engineering units
......................................................................................................................................................... 54Hi alarm- engineering units
......................................................................................................................................................... 54Lo alarm- engineering units
......................................................................................................................................................... 55LoLo alarm- engineering units
......................................................................................................................................................... 55Alarmhysteresis - engineering units
......................................................................................................................................................... 55Deadband - engineering units
.......................................................................................................................................................... 55Analog inputs 0-10V (AV1 - AV2)
......................................................................................................................................................... 55Name ......................................................................................................................................................... 56Engineering units
......................................................................................................................................................... 56Low reference - internal units
......................................................................................................................................................... 56Low reference - engineering units
......................................................................................................................................................... 56High reference - internal units
......................................................................................................................................................... 56High reference - engineering units
......................................................................................................................................................... 57HiHi alarm- engineering units
......................................................................................................................................................... 57Hi alarm- engineering units
......................................................................................................................................................... 57Lo alarm- engineering units
......................................................................................................................................................... 57LoLo alarm- engineering units
......................................................................................................................................................... 57Alarmhysteresis - engineering units
......................................................................................................................................................... 58Deadband - engineering units
.......................................................................................................................................................... 58Counters (CNT1 - CNT16)
......................................................................................................................................................... 58Incrementing input
......................................................................................................................................................... 58Active edge of incrementing input
......................................................................................................................................................... 58Decrementing input
......................................................................................................................................................... 59Active edge of decrementing input
......................................................................................................................................................... 59Counting range (32 bits)
.......................................................................................................................................................... 59Timers ......................................................................................................................................................... 59Synchronous timers (CT1 - CT16)
......................................................................................................................................... 59Start [HH:MM] ......................................................................................................................................... 59Period ......................................................................................................................................... 60Days of week ......................................................................................................................................... 60Days of month ......................................................................................................................................... 60Months
......................................................................................................................................................... 61Asynchronous timers (CK1 - CK16)
......................................................................................................................................... 61Activating input ......................................................................................................................................... 61Reset input ......................................................................................................................................... 61Timer time unit ......................................................................................................................................... 62Counting range in timer units
.......................................................................................................................................................... 62Constant parameters
......................................................................................................................................................... 62Number of constant parameters
......................................................................................................................................................... 62Number of constant parameters (textual)
......................................................................................................................................................... 62Parameter 1 - 128
......................................................................................................................................................... 62Parameter 1....72 (textual)
.......................................................................................................................................................... 62SD card ......................................................................................................................................................... 62Use of card
......................................................................................................................................................... 63Start ......................................................................................................................................................... 63Period

V
Index
© 2019 Inventia Sp. z o.o.
......................................................................................................................................................... 63Delete data older than
......................................................................................................................................................... 63Delete data when low on memory
................................................................................................................................... 635 Communication ports
.......................................................................................................................................................... 64Modbus ID- Port 1
.......................................................................................................................................................... 64Modbus ID- Port 2
.......................................................................................................................................................... 64Modbus ID- Ethernet
.......................................................................................................................................................... 64Modbus ID- GPRS
.......................................................................................................................................................... 64Port 1/Port 2 ......................................................................................................................................................... 64Operating mode
......................................................................................................................................................... 65Interface type
......................................................................................................................................................... 65Transmission speed
......................................................................................................................................................... 66Number of data bits
......................................................................................................................................................... 66Stop bits ......................................................................................................................................................... 66Parity ......................................................................................................................................................... 66Modbus ......................................................................................................................................................... 67Transparent mode ......................................................................................................................................... 67Max. data packet size
......................................................................................................................................... 67Data frame delimiter
......................................................................................................................................... 67Channel reservation time
......................................................................................................................................................... 67Modbus Master mode
......................................................................................................................................... 67Delay after error in communication with Slave
......................................................................................................................................... 68Number of read/write data blocks
......................................................................................................................................... 68Response timeout [s]
......................................................................................................................................... 68Data blocks (read/write)
................................................................................................................................... 68Modbus Slave ID
................................................................................................................................... 68Address space in Slave
................................................................................................................................... 69Mapped space address - Slave
................................................................................................................................... 69Mapped space size
................................................................................................................................... 69Mapped space address - Module
................................................................................................................................... 69Mapped space refresh interval
......................................................................................................................................................... 69Flex Serial mode ......................................................................................................................................... 70Max. data packet size [byte]
......................................................................................................................................... 70Data frame delimiter [s]
......................................................................................................................................................... 70M-Bus mode ......................................................................................................................................... 70Transmission speed [bod]
......................................................................................................................................... 70Number of device
......................................................................................................................................... 70Addressing ......................................................................................................................................... 71M-BUS device (DEVx)
................................................................................................................................... 71Name ................................................................................................................................... 71Addressing method
................................................................................................................................... 71Address ................................................................................................................................... 71Serial number ................................................................................................................................... 72Restart communication before reading
................................................................................................................................... 72Bytes order ................................................................................................................................... 72Pooling interval [min]
................................................................................................................................... 72Number of variables
................................................................................................................................... 72Variable table
.......................................................................................................................................................... 74Ethernet ......................................................................................................................................................... 74Use of Ethernet
......................................................................................................................................................... 75Ethernet port speed
......................................................................................................................................................... 75Sender IPaddress control
......................................................................................................................................................... 75IPaddress......................................................................................................................................................... 75Subnet mask
......................................................................................................................................................... 76Default gateway
......................................................................................................................................................... 76IProuting table entry count
......................................................................................................................................................... 76Routing IP ......................................................................................................................................................... 76Authorized IPaddresses
......................................................................................................................................... 76Number of IPaddresses

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......................................................................................................................................... 76IP ......................................................................................................................................................... 77Modbus TCPClient ......................................................................................................................................... 77Delay after error in communication w ith Server
......................................................................................................................................... 77Number of read/write data blocks
......................................................................................................................................... 77Response timeout
......................................................................................................................................... 78Ethernet IP ......................................................................................................................................... 78Server Modbus ID
......................................................................................................................................... 78Address space in Server
......................................................................................................................................... 78Mapped space address - Server
......................................................................................................................................... 78Mapped space size
......................................................................................................................................... 79Mapped space address - Module
......................................................................................................................................... 79Mapped space refresh interval [s]
.......................................................................................................................................................... 79Routing tables
......................................................................................................................................................... 79Number of Modbus routing table rules
......................................................................................................................................................... 79Number of Transparent routing table rules
......................................................................................................................................................... 80Modbus routing table
......................................................................................................................................................... 81Transparent routing table
................................................................................................................................... 816 Communication
.......................................................................................................................................................... 81MT2MT buffer
......................................................................................................................................................... 82Active ......................................................................................................................................................... 82Buffer address
......................................................................................................................................................... 82Buffer size
.......................................................................................................................................................... 82Logger ......................................................................................................................................................... 82Primary transmission channel
......................................................................................................................................................... 83Primary Recipient
......................................................................................................................................................... 83Alternative transmission channel
......................................................................................................................................................... 83Alternative Recipient
......................................................................................................................................................... 83Recipient UDPport
......................................................................................................................................................... 83Number of logger data blocks
......................................................................................................................................................... 83Logger data block table
.......................................................................................................................................................... 84Events ......................................................................................................................................................... 84Number of events
......................................................................................................................................................... 84Event table
.......................................................................................................................................................... 84Data blocks ......................................................................................................................................................... 85Number of data blocks
......................................................................................................................................................... 85Data block table
.......................................................................................................................................................... 85Rules ......................................................................................................................................................... 85Number of rules
......................................................................................................................................................... 85Recipient UDPport
......................................................................................................................................................... 85Rule ......................................................................................................................................... 85Name ......................................................................................................................................... 86Triggering event ......................................................................................................................................... 86Transmission type
......................................................................................................................................... 86Receiver ......................................................................................................................................... 86SMS text ......................................................................................................................................... 87Data block
.......................................................................................................................................................... 87SNMP ......................................................................................................................................................... 87Community string - read
......................................................................................................................................................... 87Community string - read/write
......................................................................................................................................................... 87Trap handling
......................................................................................................................................................... 87Request handling
......................................................................................................................................................... 88Traps ......................................................................................................................................... 88Number of trap receivers
......................................................................................................................................... 88Number of traps ......................................................................................................................................... 88Trap data source......................................................................................................................................... 88Trap receivers ......................................................................................................................................... 88Trap table
......................................................................................................................................................... 90Requests

VII
Index
© 2019 Inventia Sp. z o.o.
......................................................................................................................................... 90Number of request receivers
......................................................................................................................................... 90Request count ......................................................................................................................................... 90Request receivers
......................................................................................................................................... 90Request table ................................................................................................................................... 90Triggering bit ................................................................................................................................... 91Triggering slope................................................................................................................................... 91Receiver address
................................................................................................................................... 91OID ................................................................................................................................... 91Destination register address
................................................................................................................................... 92Read flag ................................................................................................................................... 92Error flag
.......................................................................................................................................................... 92Spooler ......................................................................................................................................................... 92Triggering event
......................................................................................................................................................... 93Transmission channel
......................................................................................................................................................... 93Address .......................................................................................................................................................... 93IEC 60870-5-104
......................................................................................................................................................... 93Common address
......................................................................................................................................................... 93T1 [s] ......................................................................................................................................................... 93T2 [s] ......................................................................................................................................................... 94T3 [s] ......................................................................................................................................................... 94K ......................................................................................................................................................... 94W ......................................................................................................................................................... 94Number of variables
......................................................................................................................................................... 94Event count
......................................................................................................................................................... 94Time synchronization
......................................................................................................................................................... 95Variable table
......................................................................................................................................................... 95Group table
......................................................................................................................................................... 95Event table
................................................................................................................................... 967 Presets
.......................................................................................................................................................... 96Counters (CNT1 - CNT16)
X Problem solving 98
................................................................................................................................... 981 LED signaling
.......................................................................................................................................................... 98Binary inputs I1 - I16
.......................................................................................................................................................... 98Binary outputs/inputs Q1 - Q12
.......................................................................................................................................................... 99GSM status .......................................................................................................................................................... 99Signal level .......................................................................................................................................................... 100GSM activity.......................................................................................................................................................... 100Serial ports activity
.......................................................................................................................................................... 100Ethernet status
.......................................................................................................................................................... 101Module status
................................................................................................................................... 1012 MT-151 LED Error signaling
.......................................................................................................................................................... 102Standard errors
................................................................................................................................... 1033 Unlocking the SIM card
XI Technical parameters 104
................................................................................................................................... 1041 General
................................................................................................................................... 1042 GSM modem
................................................................................................................................... 1043 Power supply
................................................................................................................................... 1044 Binary inputs
................................................................................................................................... 1055 Binary outputs
................................................................................................................................... 1056 Analog inputs 4-20mA
................................................................................................................................... 1057 Analog inputs0-10V

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................................................................................................................................... 1068 Drawingsand dimensions
XII Safety information 107
................................................................................................................................... 1071 Working environment
................................................................................................................................... 1072 Electronic equipment
.......................................................................................................................................................... 107Heart pacemakers
.......................................................................................................................................................... 107Hearing aids
.......................................................................................................................................................... 107Other medical equipment
.......................................................................................................................................................... 107RF Marked equipment
................................................................................................................................... 1073 Explosive environment
XIII Appendices 108
................................................................................................................................... 1081 Register of changes - documentation
................................................................................................................................... 1082 Register of changes - device
................................................................................................................................... 1093 SNCS Simple Name Command Syntax
................................................................................................................................... 1144 SNMP - trap configuration example
.......................................................................................................................................................... 115Sending traps using internal program
................................................................................................................................... 1165 List of Bits
................................................................................................................................... 1176 Memory map
.......................................................................................................................................................... 117Input registers/binary inputs address space
.......................................................................................................................................................... 122Holding registers/binary outputs address space
XIV About User Manual 129
...................................................................................................................................

Mobicon MT-151 LED V2 User Manual
1
© 2019 Inventia Sp. z o.o.
1 Module destination
Telemetry Module MT-151 LED is a device which incorporates functions of industrial PLC,
logger and protocol converter which enriching it with robust wireless GSM/GPRS connectivity.
Thanks to automating cellular network connection reestablishing mechanizm to access to two
independent GSM/GPRS networks Dual-SIM technology used in this device ensures continuity of
data flow not achieved in other solutions. Ethernet and two serial ports are powerful tools,
allows communicating with other devices thus further expanding resources available to be used
by user. With compact, robust design, integral GSM modem, attractive technical features and
easy to use configuration tools the MT-151 LED controller is an optimal solution for demanding
wireless telemetry, control, diagnostic, surveillance and alarm systems.
General attributes of MT-151 LED:
· Dual-SIM technology (possibility of using 2 SIM cards)
· Integral, quad-band 850/900/1800/1900 GSM modem
· 16 optoisolated binary inputs
· 12 optoisolated binary outputs with possibility of operation as binary inputs (selected
independently for each output)
· 4 optoisolated 4 - 20mA analog inputs
· 2 optoisolated 0 -10V analog inputs
· Ethernet 10Base-T/100Base-TX port
· Optoisolated RS-232/485 serial port for communication with external devices
· Optoisolated RS-232 serial port with 5V power output dedicated for external control
panels
· Diagnostic LEDs
· Connector for backup power (built-in battery charger)
· PLC functionality
· Standard industrial transmission protocols (Modbus ASCII/RTU, Modbus TCP, SNMP,
Transparent, M-Bus, IEC,) support and routing
· 3-years warranty

GSM requirements 2
© 2019 Inventia Sp. z o.o.
2 GSM requirements
To proper operation, the module needs a SIM card supplied by a GSM operator providing GPRS
and/or SMS services.
It is advised to use GPRS enabled SIM card 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 server-to-module communication within the APN structure. If SIM cards with dynamic
addressing are used, only module-to-server communication is possible.
A good and strong GSM signal in the place where the module's antenna is located is necessary
for the proper function of the module. Using the module in places where the signal is weak may
lead to interruptions in transmission and possible loss of transmitted data along with increased
costs generated by transmission retries.

Mobicon MT-151 LED V2 User Manual
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© 2019 Inventia Sp. z o.o.
3 How to use the manual
The manual was written for beginners as well as for advanced telemetry users. Each user will
find useful information about:
Module design - this chapter presents the basic information about Module resources and
design elements. Her is the information about how does the module work and how
and where it may be employed. Chapter contains signaling description of LED
indicators which is necessary knowledge during module installation.
Module connection diagrams - contains diagrams and procedures for connecting MT-151
with devices and external elements like sensors, antennas or the SIM card.
First start of the module - contains recommended first start procedure.
Configuration - this chapter presents information about all available configuration
parameters. All parameters concern firmware version compliant with
documentation version.
Problem solving - all procedures for diagnostic operations.
Technical parameters - a revue of technical parameters and technical drawings.
Safety informations - information concerning conditions of secure use of the module.
Appendices - contain a register of changes in consecutive firmware versions, syntax of SMS
messages and the memory map of the module, necessary for proper configuration
of MTData Provider and data collecting equipment.

Required programs 4
© 2019 Inventia Sp. z o.o.
4 Required programs
For proper start of working with the module has to be install an additional software for
configuration and communication with MT-151. In this manual we are often use a software
names that is cooperating with module. Below is available the short description of the
applications with information what is necessary to install on the computer on every stage work
with a device.
MTManager (MTM) (absolutely required for module setup and diagnostic) - main application for
MT\ML module management. Program allows a local and remote configuration of the modules,
programing of control algorithms, firmwares upgrade and resources monitor. Application is
available on MT-DISC, the DVD that is delivered with MT-151 or can be downloaded after login
on www.inventia.pl web site.
MTData Provider (MTDP) (required for data transmission setup and diagnostic) - application
for measurement data transmission in both ways, from and to the MT\ML modules. MTData
Provider receive data from modules and share it in CSV files and write it to relational data base.
The application supports OPC server functionality in two standards: DA\UA.
MTSpooler (MTS) (not required for module setup or diagnostic) - service that is designed for
mass management of the MT modules configuration, especially for battery modules that working
in sleep mode by most time is naturally behavior (the GSM modem is not logged to network).
MTSpooler listens of module notification and after its receiving achieves tasks that was
planned before.

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5 Module design
5.1 Hardware resources
I1 - I16
binary inputs
Q1 -Q12
binary outputs that can operate as binary inputs
AI1 - AI4
4-20mA current analog inputs
AV1 - AV2
0-10V voltage analog inputs
PORT 1
RS-232/485 serial port
PORT 2
RS-232 serial port with 5V power output
Ethernet
port
Ethernet 10Base-T/100Base-TX port
USB port
USB port used for configuration, programming and diagnostics
SD card
reader
Allows to install SD memory card (max. 32GB FAT32)
Module is equipped 128Mhz ARM Coretex M4 processor, 256kB of SRAM and 9MB of Flash used
for keeping module configuration, data logger and system information. Modules supports SD
cards up to 32GB.

Module design 6
© 2019 Inventia Sp. z o.o.
5.1.1 Binary inputs
MT-151 LED telemetry module is equipped with 16 optoisolated binary inputs marked as I1 -
I16 which operate in positive. Binary inputs are divided into two groups (I1 - I8 and I9 - I16)
with separate ground connector for each group. Additionally inputs marked as I1 - I4 can
operate in pulse mode with flow scaling function. The maximal frequency that can be measure
is 2kHz.
The binary outputs Q1 - Q12 can be individually configured to operate as binary inputs,
however they support only more common positive logic.
5.1.2 Binary outputs
MT-151 LED telemetry module is equipped with 12 optoisolated binary outputs marked as Q1 -
Q12.Outputs state can be controlled locally by user written program or remotelly via GPRS,
SMS or using one of available communication ports. The binary outputs Q1 - Q12 can be
individually configured to operate as binary inputs supporting positive logic.
5.1.3 Analog inputs 4-20mA
MT-151 LED telemetry module is equipped with 4 optoisolated analog inputs operating in 4-
20mA range and marked as AI1 - AI4. Analog inputs measurement can be scaled in engineering
units (e.g. in meters or percents). For each analog input user can define 4 alarm levels (2 high
and 2 low) with hysteresis. It is also possible to define deadband parameter - each time
measured value changes by value higher than defined by this parameter deadband bit assigned
to this analog inputs rises for one program cycle. These bits can be used for tracking analog
input value.
5.1.4 Analog inputs 0-10V
MT-151 LED telemetry module is equipped with 2 analog inputs operating in 0-10V range and
marked as AV1 and AV2. Analog inputs measurement can be scaled in engineering units (e.g. in
meters or percents). For each analog input user can define 4 alarm levels (2 high and 2 low)
with hysteresis. It is also possible to define deadband parameter - each time measured value
changes by value higher than defined by this parameter deadband bit assigned to this analog
inputs rises for one program cycle. These bits can be used for tracking analog input value.
5.1.5 Serial ports
MT-151 LED telemetry module is equipped with 2 serial ports:
· PORT 1 - optoisolated RS-232/485 port designed for communication with external
devices. Interface type and operating parameters are configurable by MTManager -
program suite delivered for free with modules.
· PORT 2 - RS-232 port with 5V power output dedicated for communication with control
panels and other devices.
5.1.6 Ethernet port
MT-151 LED telemetry module is equipped with Ethernet 10Base-T/100Base-TX port used for
communication with external devices.
5.1.7 USB port
MT-151 LED telemetry module is equipped with USB (micro USB B) port which is used for
device configuration (MTManager is required). This Port is visible in system (driver only for
Windows) as COM port. Device communicates at 115200 bps with 8 data bits, no parity bit and
1 stop bit. Port is not optoisolated!

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5.1.8 SD card reader
MT-151 LED telemetry module is equipped with SD card reader supporting up to 32GB SD
cards. Card should be formatted using FAT32 file system. User can store files with data from
internal data logger on the memory card.
5.1.9 Real time clock
MT-151 LED module is equipped with Real Time Clock (RTC). This clock is a source for time
measurement for the module timers and time stamping measurements stored in the logger and
sent via GPRS.
It is recommended to manually synchronize modules real time clock during the first configuration
performed using the MTManager program.
NOTICE!
The RTC clock module does not automatically adjust to Daylight Saving Time.
It is recommended to use UTC time to avoid loss of data during manual time
adjustments.
NOTICE!
The RTC clock is powered from an internal battery and as long as it is
operated, there is no need to set the time again after power-off.
Since the clock precision is not absolute, periodical time adjustment may be
necessary.
5.2 Internal resources
5.2.1 Logger
MT-151 LED telemetry module is equipped with Logger capable of storing up to 12000 records,
which allows to store measurements done every 10s for 30 hours or 40 days if measurement
was saved every 5 minutes. Records are saved asynchronously, meaning that the record
writing is triggered by an event (defined by user in the Event table). The event may be e.g.:
counting the time by the timer, GPRS logon, crossing one of defined alarm thresholds and
other.
The logger records consists of up to 4 data blocks, 28 16-bit registers each. Each record in the
logger has a time stamp of the module internal Real Time Clock (RTC).
The data written in the logger is transmitted to IP address assigned during configuration.
Sending of the logger content is triggered by user defined events. Confirmation of reception
marks records as sent. In case of overflowing logger the oldest records are overwritten. Data
from the logger could be stored on the installed memory card SD as separated comma files and
transmitted into secondary IP address assigned during configuration.
5.2.2 Registers
MT-151 LED module provides access to measurements, and other data via 16-bit registers
divided into two groups according to Modbus device model - Input Registers (read only) and
Holding Registers (read/write access). Remote access to registers is possible via SMS, GPRS
(Modbus TCP and Standard Inventia protocol), serial ports (Modbus RTU) and Ethernet port
(Modbus TCP).
Internal registers start from address 1189 and Input register is zeroed after module restart
(e.g. power off, module update).
Holding registers to address 1188 are nonvolatile. Registers from 1189 to 8191
addresses are reset at startup of the module.
Input registers are reset at startup.

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© 2019 Inventia Sp. z o.o.
There is possibility to access single bits of Input and Holding Registers - or address them as
Binary Inputs for Input Registers and Binary Outputs for Holding Registers. Detailed description
of addressing method is described in Memory map chapter in Appendices.
Full list of registers is available in Memory map chapter in Appendices.
5.2.3 Counters
MT-151 LED is equipped with 16 general purpose, internal counters.Their purpose is to count
pulses understood as binary state changes of any bit available in the memory map. Each
counter has one incrementing and one decrementing input and assigned 32-bit register holding
the difference of counted pulses. Initial state of the counters may be defined by user
activating MTManager menu item Initial settings (more info in MTManager manual).
5.2.4 Timers
MT-151 LED module is equipped with 16 general purpose, programmable synchronous timers
CT1 - CT16 synchronized with module RTC. Their function is counting constant user defined
time intervals in range of 1 minute to 24 hours. The User may appoint months, days of month
and days of week in which the timer is active. In addition, there are available 16 general
purpose programmable asynchronous timers CK1 - CK16. These timers start counting when
module is powered or reset and they are not synchronized with RTC clock.
5.2.5 MT2MT buffer
MT2MT buffer enables creation of system where MT modules may exchange information
(Holding Registers) with each other without any relaying instance. Data transmission from one
module to the other is carried out by sending from one device group of Holding Registers with
data to second device which has turned on MT2MT buffer functionality and defined MT2MT
buffer which includes register addresses send from sending device. Data send by sender is
saved to registers within buffer with the same address. Each time when new data arrives
MT2MT_x bit is set, where x is position of sender IP address on receiver authorized IP list.
5.2.6 Constant parameters
In MT-151 LED module configuration user can define up to 128 constant parameters - 16-bit
values in range from -32768 to 32767 that may be further used for control program
parameterization. Values of constant parameters are nonvolatile.
5.2.7 System flags
MT-151 LED provides system of various internal flags that inform about module status. Most
important bits are:
· FS1_acu - when set to 1, then battery is connected to module
· FS1_q+ - when set to 1, then there is no power provided for binary outputs
· FS1_gprs - when set to 1, then module is successfully logged into GPRS network
· FS1_gsm - when set to 1, then module is successfully logged into GSM network
· FS1_OVERRUN - when set to 1, an exceed of the runtime the internal program
Full list of System flags is available in Memory map chapter in Appendices.
5.2.8 Control program
PLC functionality of MT-151 LED module allows User to define algorithm of control and data
processing in form of control program. Program can be written in three languages available in
MTManager. The application is available with the modules and is free of charge.
Basic information about internal program running:

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· The execution of program cycle starts every 100 ms. Duration between cycles is count from
beginning of first cycle to beginning of second. Run time length of the program not affect for
next cycle until it exceeds 90ms. If program loop executes longer than 90 ms (in case of
write/erase flash memory of logger, large CPU processing load like lot calls of float function),
next cycle will start immediately after ~10ms. At the same time flag FS1_OVERRUN (3 bit in
register IREG2) will be set means time synchronization is lost.
· Maximum program length is 5000 instructions.
· Maximum instructions number executed in one cycle of the program is terminated to 10000.
Below a sample program is presented which executes start/stop algorithm with two momentary
inputs (I1 - start, I2 - stop) and one output (Q1).
MTManager - sample program in text mode
MTManager - sample program in ladder