Programmable Logic Controller (PLC): Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process. PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks. The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC. When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes. The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by control programming language. PLC counter: A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true). The three different types of counters instructions are as follows: Up counter Down counter Combined counter

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Program Plan Intro

Programmable Logic Controller (PLC):

Programmable Logic Controller (PLC) is a specialized computer used in industrial segments to control machines and process.

PLC is program that consists of a set of instructions which resembles the controlling functions needed to perform specific tasks.

The function of PLC is similar to that of a relay and hence, in an industrial segment a relay is greatly replaced by a suitable PLC.

When compared to general Personal Computer (PC), a PLC is available in small and tiny sizes.

The basic architecture of a PLC consists of an input-output interface module and a small Central Processing Unit (CPU) that runs by control programming language.

PLC counter:

A counter is a PLC instruction which counts up or down when the input transfers from an off state (false) to an on state (true).

The three different types of counters instructions are as follows:

Up counter

Down counter

Combined counter

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Q1 a) Design a single-digit decade counter that counts from 0 to 9 and repeats. The single-digit decade counter should be built by a cascaded synchronous binary counter (74LS163) and other basic logic gates. Simulate the complete counter circuit by OrCAD and PSPICE. Capture the circuit schematic and the simulated waveform. (Define the simulation timings for at least one full counting cycle from 0 to 9 and back to 0.) (Hint: Use the DigClock input from the SOURCE as shown below and setup the CLK ONTIME and OFFTIME accordingly for the clock source.) Part DigClock Part List: OFFTIME = .5uS DSTM1 ONTIME = .5us DELAY = STARTVAL = 0 OPPVAL = 1 DisClock FileStm1 FieStm16 CLK FileStim2 FileStim32 FileStim4 FileStime Libraries Design Cache EVAL 1. SOURCE