119
•
The Module operates in
Modbus RTU Master
mode and communicates with attached
Master device, passing GPRS received data.
•
The Module operates in
Modbus RTU Slave
mode and has sent received query to
PORT 2 for Modbus ID different than its own
•
The Module operates in
Modbus RTU Mirror
and sends queries for attached SLAVES
to PORT 2.
•
The Module operates in
Transparent
or
Transparent PLUS
mode and reroutes data
received via GPRS to PORT 2
•
The Module operates in
GazModem
or
M-Bus LEC
mode and communicates with
attached devices.
•
The Module operates in
NMEA0183
mode and receives data from attached device.
Activity is observed only on
Rx
LED.
•
The Module operates in
Modem
mode and communicates with superior device.
•
The Module operates in
FlexSerial
mode running built in port service for
communication with device working on non standard transmission protocol.
In
MT Slave
PORT 2 mode is inactive so
Tx
and
Rx
LED's show no activity.
10.1.7. Module's status
Module status
group encompasses four LED indicators displaying the state of the circuit
controlling the module's operation and with execution of user-defined program.
Significance of LED indicators:
•
Err
LED - when lit, the
Err
LED indicates an error forcing automatic reboot. The
reason may be lack of GPRS communication disabling transmission of awaiting data.
Triple flash of Err LED indicates that current firmware does not support the function
used in the program. In this situation, one solution is updating the firmware.
•
Ovr
LED - when lit, the
Ovr
LED indicates that execution of the program cycle took
over 100ms and the next cycle was delayed as the result and may render improper
execution of the program.
The LED is lit in following cases:
-
the program loaded is stopped,
-
a new configuration or firmware is loaded and internal program was
automatically stopped in order avoid interference. In that case make sure not
to disrupt the power supply until the module restarts automatically. It may
take couple of minutes.
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