Lab Experiment > PLC Timer and Counter_MODULE NO. 6 _ Mapúa Institute of Technology ECEA 103L

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EXPERIMENT TITLE

MODULE NO. 6

PLC Timer and Counter PREPARED BY: J.B. G. Ibarra

DATE PERFORMED: APRIL 27, 2021

NAME:

Cenidoza, Ivan Patrick D. SIGNATURE

Sample Screenshot of the PLC program using Fluidsim

INSTRUCTOR: PROF. ENGR. JOSEPH BRYAN IBARRA

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PART 1 : Timer Simulation Given a sequence, design the Ladder diagram and Function Block Diagram: 1.1 a. Lamp 1 turns ON once Start is pressed. b. After 2 seconds Lamp 2 turns ON. c. After 2 seconds Lamp 3 turns ON. d. And after another 2 seconds, all lamps will turn OFF. Pressing Start again will repeat the sequence.

4.1.1 Identify the I/O devices then assign addresses for each device.

Address I0.00 O0.00 O0.01 O0.02

I/O Device PB1 L1 L2 L3

Description N.C. Momentary Switch Indicator Light Indicator Light Indicator Light

4.1.2 Write the PLC Ladder Program and Function Block diagram: Function Block Diagram:

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PLC Ladder Program:

PART 2: Counter Simulation 1.2 In a brewery plant, a. A momentary, N.O. contact pushbutton is used to select which kind of beer to produce. b. First ON selects Beer_1; Second ON selects Beer_2; Third ON selects Beer_3. c. Fourth ON shall reset selection (all outputs are reset). d. Cycle continues depending on number of Ons on the pushbutton

4.2.1 Identify the I/O devices then assign addresses for each device.

Address I0.00 O0.00 O0.04 O0.07

I/O Device PB1 Beer_1 Beer_2 Beer_3

Description N.O. Momentary Switch Indicator Light Indicator Light Indicator Light

4.2.2 Write the PLC Ladder Program and Function Block diagram:

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Function Block Diagram:

PLC Ladder Program:

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PART 3: Timer and Counter Simulation 1.3 Implement the process with the following specifications: a. A Start pushbutton (0.00, momentary, N.O. contact) shall be used to start the sequence. No two motors are turned ON at any given time. b. Motor 1 shall be turned ON once Start is pressed. c. After 2 seconds Motor 1 is turned OFF then Motor 2 is turned ON. d. After 2 seconds Motor 2 is turned OFF then Motor 3 is turned ON. e. After 2 seconds Motor 3 is turned OFF. f. After 3 continuous cycles, the process resets. Pressing Start will begin the process again.

4.3.1 Identify the I/O devices then assign addresses for each device.

Address I0.00 O0.00 O0.01 O0.02

I/O Device PB1 Motor 1 Motor 2 Motor 3

Description N.O. Momentary Switch 24 Vdc Motor 24 Vdc Motor 24 Vdc Motor

4.3.2 Write the Ladder Program and Function Block diagram: Function Block Diagram:

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PLC Ladder Program:

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