PLC Program to Simulate Gate Array Logic

Develop a PLC program that will simulate the gate array logic as shown in the below figure.

Gate Array Logic

Simulate the given gate array logic in ladder logic operation.

Simulate Gate Array Logic using PLC

Program Logic

Totally there are 10 digital inputs and one digital output.

Solve each OR block separately, do the two AND Function and finally do the OR operation at the end.

Input-Output List

Input Output List of Gate Array Logic

PLC Program for Gate Array Logic

PLC Program to Simulate Gate Array Logic

Program Description

RUNG 0000

A, C AND INVERTED B are into OR operation. D and E are into OR operation.

Those two results will make AND operation with G and inverted F.

The Final result is stored in memory coil B3:0/0.

RUNG 0001

H and I are into OR operation and the result is AND with J.

The final result is stored in memory coil B3:0/1.

RUNG 0002

B3:0/0 and B3:0/1 are into OR operation to enable or disable output Y.

PLC Programming Simulation

CASE 1:

When anyone rung goes true output Y turns ON.

Simulation of Gate Array in PLC Logic

CASE 2:

When anyone rung goes true output Y turns ON.

Gate Array Logic using PLC

CASE 3:

When both rungs goes false output Y is disabled.

Gate Array Logic

Conclusion:

The above-explained logic for gate array logic and is successfully simulated with three case studies.

Author: Hema Sundaresan

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PLC Program to Simulate Gate Array Logic

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