Overview Of Plc System - AutomationDirect C0-USER-M Manual

Chapter 2: Specifications

Overview of PLC System

The CLICK PLC family of components is designed to combine practical PLC features in a
compact and expandable design, with a simple-to-use philosophy. A powered CLICK PLC
unit by itself can be used as a complete PLC system with built-in I/O points, or the system
can be expanded with the addition of up to eight I/O modules. The CLICK PLC system does
not require a mounting base. The CLICK PLC and I/O modules are connected together via
an expansion port on the right side of the PLC case. A variety of I/O modules are available
for flexible and optimal system configuration. The CLICK PLC supports a very simple but
useful instruction set. There are 21 easy-to-use instructions that cover most applications that
are suitable for this class of PLC.
Use a CLICK PLC unit as a stand-alone controller...
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or, expand the system by installing up to eight additional I/O modules.
NOTE: It is not necessary to use the CLICK PLC with a CLICK power supply. An alternately regulated,
properly-sized 24VDC power source can be used to power the PLC and can also provide 24VDC to any optional I/O
modules used in the CLICK PLC hardware configuration. Please refer to the Power Budgeting section later in this chapter
for details on choosing the correct size power supply.
2–2 CLICK PLC Hardware User Manual, 6th Edition, Rev. F – C0-USER-M