This ladder logic program was created using Trilogi, a PLC programming software. It controls four lamps and a motor based on specific input conditions.

Key Components:

• Software Used: Trilogi (for PLC simulation and programming)

• Inputs: A (I1), B (I2), C (I3), D (I4)

• Outputs: LAMP1, LAMP2, LAMP3, LAMP4, MOTOR

Logic Breakdown:

• LAMP1: Turns ON only if A, B, C, and D are all activated at the same time.

• LAMP2: Turns ON if A, C, and D are ON. However, if B is ON, it bypasses A and still allows LAMP2 to turn ON.

• LAMP3: Turns ON only if A, B, C, and D are all activated (same as LAMP1).

• LAMP4: Turns ON only if A, B, C, D, and LAMP3 are ON. This means LAMP3 is a prerequisite for LAMP4.

• MOTOR:

  • Turns ON if either A or B is ON AND D is ON.

  • Additionally, LAMP2 must be ON for the motor to activate.