Telemetry Module MT-102 User's Manual - BlueNote Communications
Telemetry Module MT-102 User's Manual - BlueNote Communications
Telemetry Module MT-102 User's Manual - BlueNote Communications
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Transmission parameters are:<br />
speed of 9600bps,<br />
8 data bits,<br />
no parity,<br />
1 stop bit,<br />
hardware handshake (RTS/CTS).<br />
This port is ideal for connecting external graphical or text panel supporting Modbus RTU<br />
Master.<br />
NOTICE!<br />
The first configuration has to be performed locally, via PORT1 in order to<br />
provide the module with basic GPRS communication parameters like PIN code<br />
and APN name.<br />
PORT2 is capable of operating in RS-232/422/485 modes and serves communication with<br />
external data sources. The interface and operating mode is selected during module's<br />
configuration. This port is optoisolated.<br />
4.2.4. Real time clock<br />
<strong>MT</strong>-<strong>102</strong> <strong>Module</strong> is equipped with astronomical time clock (RTC).<br />
The clock is a base for defining working cycles of module, timers and time stamps for<br />
measurement results recorded in registers. Imprecise clock setting results in faulty time<br />
stamping and subsequent loss of vital information. For that reason, it is recommended to<br />
set the clock to UTC time instead of the local time zone of the module's placement.<br />
CAUTION!<br />
The module's RTC clock does not automatically adjust to summer/winter<br />
time. To avoid loss of data during manual time adjustment, UTC time is<br />
recommended.<br />
CAUTION!<br />
The RTC clock is powered from an internal battery, and as long as it is<br />
operational there is no need to reset the time after power-off. Since the<br />
clock precision is not absolute, periodical time adjustment may be<br />
necessary.<br />
Setting the time is described in configuring mode documentation for the <strong>MT</strong>M program.<br />
4.3. Internal resources<br />
4.3.1. Registers<br />
<strong>MT</strong>-<strong>102</strong> <strong>Telemetry</strong> module has in its internal resources 16 bit input registers and 16 bit<br />
internal registers. Remote access to these areas is possible using standard Modbus<br />
commands.<br />
Internal Registers are not reset at power off.<br />
Input Registers are reset at power on.<br />
12