User's Manual

Introduction

INTRODUCTION

Scope of this Manual

This manual provides instructions for the installation and

operation of the Distributed I/O system Piccolo Interface

Unit (PIU) and Piccolo–XR units. The Distributed I/O

System includes PIUs and Piccolo–XRs. Each PIU can be

linked to up to 256 Piccolo–XRs. For more information on

the PIU and Piccolo–XR, see the online help of the DIOS

Service Toolkit.

General Description

The Distributed I/O System (DIOS) is a self-sustained

system designed to function within the IRRInet irrigation

control product line.

The DIOS consists of the following components:

• Piccolo Interface Unit (PIU)

• Piccolo–XR Units

The PIU functions as an interface between the host

application (irrigation SW and HW) and the Piccolo–XR

units. The PIU and Piccolo-XR are portable devices, which

are commonly used in fixed installations. The PIU uses

one of its communication ports to link to the host

application and radio communication to link to the

Piccolo–XR units. Figure 1 provides a general view of the

DIOS System.