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Article | September 30, 1998
Electro Cam Corporation: PLCs vs. PLSs
A new eight-page white paper from Electro Cam (Roscoe, IL) describes how PLCs and programmable limit switches (PLSs) differ. Describes how PLCs are designed for low-speed processes such as receiving input signals from sensors and limit switches and sending output signals to actuators, solenoid valves, motors and pneumatic cylinders.
Explains how PLSs are designed for accurate control of repetitive high-speed machine functions such as turning devices on and off based on the exact position of a rotating shaft.
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