User's Manual

Introduction
Piccolo-XR Units
I/O's
IRRInet Field
Unit
Piccolo
Interface
Unit
RS485
or
RS232
PIU
Figure 1
DIOS –General System View
The battery-operated Piccolo–XR unit is available in
various models with different options of Inputs and
Outputs. The Piccolo–XR unit can operate DC latch
solenoids (outputs), read status and calculate flow of dry
contact meters (inputs).
The units are equipped with built-in radio for
communication with the PIU.
The DIOS automatically builds communication network,
using Store and Forward (S&F) technology, enabling the
DIOS to cover areas larger than normally possible when
using a single radio to communicate with the PIU.
Using the DIOS, the IRRInet system opens and closes
stations (manually or automatically by irrigation
programs), reads dry contact input status, calculates flow
rate and accumulates pulses from water meters.
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