INVENTIA MT-101, User Manual

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stamp from module's internal real time clock (RTC). It is recommended to set module's RTC
compliant to UTC for preserving data integrity.
Data written in the recorder is transmitted accordingly to configured options to defined IP
address. Confirmation of reception removes records from the recorder.
NOTICE!
The recorder function is available only in GPRS mode.
4.3.6. MT2MT Buffer
MT2MT buffer enables creation of system where MT-101/102/202 modules may exchange
information (Internal Registers) with each other without any relaying instance.
Data transmission from one module to another goes like this:
1.
In sending module the event/triggered sending of the buffer has to be defined.
2. In receiving module switch the MT2MT buffer on and define it's placement and size so
that it encompasses the area of sent registers.
3. Upon reception of event-triggered data frame, registers from event-reporting module are
copied into receiving module's registers and MT2MT_x bit informing about modification of
MT2MT buffer with data from respective IP is set. (Bit number reflects the index of IP
address in GPRS/Authorized numbers in configuration). MT2MT_x bits are set for 1
program cycle immediately after reception and recording it in MT2MT buffer.
4. Data transmission in this system copies registers of sending module into the exact same
register in receiving module. When designing communication between larger number of
modules, separate register areas have to be sent and appropriately large areas define for
MT2MT receiving buffer in receiving modules .
4.3.7. Parameters
In MT-101 module max. 64 constant parameters that are loaded into module's memory
during initialization of the module can be defined.
These constants are stored in 16 bit registers and have numerical values ranging from 0 –
65535.
Constant parameters may be used for parameterization of user programs.
Defined parameters are not reset after power loss or module is reset.
4.3.8. System variables
MT-101 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 potential at module's UPS pin
FS1_q+ = 1 - loss of power supply for binary outputs Q1..Q8
FS1_gprs = 1 - informs upon log off from GPRS network
Full list of system variables is placed in Memory map chapter in Appendices.
4.4. LED diodes
LED indicators placed on MT-101 front panel are convenient during module start up phase.