Information

IRIS-RS 232-Data-1b
RS-232
IRIS RS-232 - Application
The simplest application is the transparent radio
modem. The IRIS unit receives the data from an
external source and sends it to another IRIS unit
that’s relays it to another external system. None of
the IRIS units tries to interpret the data. This is useful
for replacing serial cables and for sending data over
long distances, more than 1000 meters with free line
of sight.
For more advanced use there are a number of
possibilities. The IRIS units can compare text
received via both the radio and the serial interface
with predefi ned strings. Wildcards (* and ?) can be
used to replace characters in the text string. This
makes the interpretation of the received text more
fl exible. After the interpretation the unit can take
actions. There are a variety of actions. The IRIS
unit has internal functions such as timers, counters,
logical fl ags and various parameters. This makes it
possible to program the units to do much more than
just relaying the data.
IRIS - General
IRIS RS-232 is part of the IRIS series. The IRIS products are developed for monitoring and
controlling other systems. IRIS units usually work in networks communicating with each other
via radio, on the 433 MHz band. An IRIS network can consist of units of different types and
usually there is at least one unit with an interface that enables it to communicate with the end-
user. It could be for example a serial port, a GSM/GPRS module or an Internet connection and a
database.
To enhance the quality of the radio communication IRIS acknowledges every data package sent.
If the transmitting unit doesn’t get a receipt that the package was received correctly it tries again
for a predefi ned number of times.
IRIS RS-232 - Confi guration
IRIS RS-232 is confi gurable and can be used in many different ways. It could be simple
applications like radio modems and replacements for serial cables in diffi cult environments or
more complex application that evaluates the data before it take actions. All is depending on how
it’s confi gured. It’s easy to confi gure the IRIS modules using the confi guration program available
on the IRIS website. It’s possible to change the serial interface parameters, like baudrate, number
of bits, parity and stop bits, predefi ned text stings and many more. For more information about
confi guration see the confi guration manual. Both the confi guration manual and the confi guration
program are available for download on the IRIS website - www.irisnetwork.se.
The unit can create and send both fi xed text string and strings with parameters. The parameters
can for example contain the unit’s id or alias, the received text, status of logical fl ags, RSSI and
values of timers and counters. The created text messages can be sent as commands to other
units or as information to the user. There is a special command that changes the value of the
logical fl ags and outputs on other units.
For more information about IRIS units and systems, please visit the IRIS website:
www.irisnetwork.se