A PLC (programmable logic controller) is a digital industrial computer designed for the control of manufacturing processes or robotic devices where reliability control, simple programming and fault diagnosis is necessary. The CPU (central processing unit) forms part of the PLC system.
PLC CPUs are microprocessors that act as the electronic circuitry within an industrial computer. CPUs in PLC systems carry out instructions from the computer program, performing basic mathematical, logical, control and input/output operations.
What are PLC CPUs used for?
PLC CPUs are important for the correct functioning of machinery in manufacturing and industry. They are used in the automation of electromechanical processes, including control of machinery on assembly lines, amusement rides, or lighting fixtures.
Types of PLC CPUs
PLC CPUs are divided into small, medium and large categories. Small PLC CPUs are robust, compact and mountable on top of or beside the equipment to be controlled. Medium PLC CPUs mainly use rack mounting or backplane systems, allowing for simple upgrading via additional function cards. Large PLC CPUs are necessary for applications where complex control functions are executed, usually in large plants, in machinery requiring constant monitoring, or control of other PLCs.
Description:
The Insulated Gate Bipolar Transistor or IGBT is
a three-terminal power semiconductor device, noted for high efficiency and fast switching. The IGBT combines the simple gate-drive characteristics of the MOSFETs with the high-current and low–saturation-voltage capability of bipolar transistors by ...
Description:
Vishay’s high-efficiency IGBT modules come with a choice
of PT, NPT, and Trench IGBT technologies. The range includes single switches, inverters, choppers, half-bridges, or in custom configurations. These IGBT Modules are designed to be used as a main switching device ...
Description:
A Thyristor is a solid-state semiconductor device with
four layers of alternating N and P-type material. They act as bistable switches, conducting when their gate receives a current trigger, and continue to conduct while they are forward biased. Thyristors are ...
Description:
The Infineon Thyristor modules vary in configuration, offering
half controlled bridges, half controlled bridge with NTC and half controlled bridge with Chopper (IGBT) and NTC (negative temperature coefficient) temperature sensor. They cover 1600 volts and current ranges from 95A to ...
