Hardware reference guide
Modicon Quantum Overview
20
35013379 02 October 2007
Quantum CPU Modules
Overview The Quantum CPU is a module residing on the Quantum local I/O backplane. The 
CPU is a digitally operating electronic system, which uses a programmable memory 
for the internal storage of user instructions. These instructions are used to 
implement specific functions such as:
z Logic
z Process sequencing
z Timing
z Coupling
z Arithmetic
These instructions allow control through digital and analog outputs, for various types 
of machines and processes.
The Quantum CPU serves as a bus master controlling the local, remote, and 
distributed I/O of the Quantum system. 
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com










