Hardware reference guide

Quantum Configurations

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Quantum Distributed I/O (DIO)

Overview

Quantum DIO can be set up in standard single or dual cable configurations (refer to

the following two figures). The Quantum DIO architecture is based on Modicon’s

Modbus Plus technology. When DIO is utilized, the Quantum system may support

up to three distributed networks of up to 64 drops (using a repeater) each.

Communication between the various nodes and the Modbus Plus head, in both

single and dual cable DIO configurations, is done by twisted pair cabling from the

head to the DIO adapters at the drops.