Mitsubishi A2USCPU(S1), User Manual

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2. SYSTEM CONFIGURATION
2.4 System Configuration Overview
There are four system configuration types as follows:
The details of the system configuration, number of I/O points, I/O number assignment,
etc., of a stand-alone system are listed on the following page.
(1) Stand-alone system ............. A system with a main base unit only, or with a main
base system and an extension base unit connected
with the extension cable.
(2) Network system ............. A system for controlling multiple PLCs and remote I/O
modules.
(3) Computer link system ............. A system for data communication between the CPU
module and the computer (personal computer, etc.) by
using an A1SJ71UC24 computer link module.
(4) Composite system
............. A system which has a combination of a network system
and a computer link system.