Faculty of Electrical & Electronics EngineeringDEE 2951 PLC Application

LABSHEET Mapping CO,PO,Domain,KI: CO2,PO1

CO2: Demonstrate and discuss the function of discrete and analog card.PO1: Ability to acquire and apply knowledge of sciences and electrical & electronics engineering fundamentals

Title: - The Application of Analog I/O board (CJ2M-MAD42)

Learning Outcome:-

At the end of this experiment, student should be able to:-

i. To explain the function of every sequence that happens to the application system.ii. To configure the analog input/output card, based on different condition of analog

input/output.iii. Design the ladder programming for application that utilized analog input/output

card, including the condition of alarm of the application.

Item use:-

i. PLC unit (CJ2M-CPU11) and assesoriesii. Analog I/O board (CQM1H-MAD42)

iii. Digital Milimeteriv. DC Power Supply (GDS-3303)v. Wire/Test Pen

vi. User Manual CJ2 CPU Unit Hardware (CAT NO. W472-E1-08)vii. User Manual Analog I/O Units (CAT NO. W345-E1-10)

viii. Current Injector (4mA to 20mA)

PLC Main Rack Configuration:-

Aut o Drainin g System Part 1Base on given Auto Draining System Application (see Figure1.0), please construct the control system for below process condition:-

a. Considering that initially the Tank is empty. The Water Pump is start to pump in the water to the tank once Water Level Sensor SL sense water level is reach Low Level Point (0M) and user select to Auto mode. User should set to CLOSE condition for Manual Valve.

b. The Alarm Lamp (RED Light) will turn ON (Blinking) to indicate that the water level in Low Level Point (0M).

c. Alarm Lamp (YELLOW Light) will turn ON to indicate that the water level in Medium Level Point (equal and more than 50M) sense by Water Level sensor MH. At this point, the Red Light must in OFF condition.

d. Alarm Lamp (GREEN Light) will turn ON once Water Level SH sense water level is reach High Level Point (100M). The Water Pump will stop pump in the water to the tank.

e. The user might drain the water by set to OPEN condition for Manual Valve. As an option, the user also might fill the water by manually. It can be operate by adjusting the Selector switch to Manual mode. Then press the Push Button 1 to trigger the Water Pump.

Construct the control system with consider all the INPUT/OUTPUT are the DISCRETE I/O Devices as below operating condition (see Table 1):-

Table 1

NO I TEM OPERATION CONDITIOND I SCRETE I NPUT DEV I CE OFF ON

1 LEVEL SENSOR SH 0V 24V2 LEVEL SENSOR SL 0V 24V3 LEVEL SENSOR SM 0V 24V

4SELECTOR SW-

AUTO/MANUAL 0V 24V5 PUSHBUTTON 1 0V 24V

MANUAL OPERATION OPEN CLOSE6 MANUAL VALVE - -

DISCRETE OUTPUT DEVICE START PUMPING STOP PUMPING7 PUMP 0V 24V8 GREEN LIGHT 0V 24V9 YELLOW LIGHT 0V 24V

10 RED LIGHT 0V 24V

No. Slot No. Module Name1 Slot0 MAD-422 Slot1 ID-2113 Slot2 ID-2114 Slot3 OD-2115 Slot3 OC-211

100M SH

50MSM

0M SL

Pump

Water In

Water Out

Manual Valve

Figure 1

i) Identify the Input and Output Assignment for the Control System.

ii) Construct the process flowchart for the control system. (Please use extra paper if require more space)

No. Input/output (address)

Description1.2.3.4.5.6.7.8.9.10.

iii) Construct the Ladder Diagram for the Control system. (Please use extra paper if require more space)

US1

High

Medium

Low

100M

50M

0M

Pump

Water In

ControlValve

Water OutFigure 2

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iv) Make the Special I/O Unit DM area setting. Assume that Special I/O has been set to Unit 0.

Address 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Hex

20000

20001

20006

20007

20008

20009

20018

20019

20020

20021

20022

20027

20028

20029

20030

20031

20032

20033

20034

20035

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v) Identify the Input and Output Assignment for the Control System.

No Input/Output (Address) Description

vi) Construct the Process Flow Chart and Ladder Diagram for the modified control system as below process condition.

a. Conversion Table for Ultra Sonic Sensor

Current (A) Level (M) Conversion Value (HEX) Condition0 0 Low Level12 50 Medium Level20 100 High Level

b. Conversion Table for Control Valve

Volt (V) Conversion Value (HEX) Condition0 CLOSE 5 OPEN

c. Process Sequence:-

a. Considering that initially the Tank is empty. The Water Pump is start to pumping the water to the tank once Ultra Sonic Sensor US1 sense water level is reach Low Level and the user select to Auto mode. At the same time Control Valve V1 in CLOSE condition.

b. The Alarm Lamp (RED Light) will turn ON (Blinking) to indicate that the water level in Low Level Point (0M).

c. Alarm Lamp (YELLOW Light) will turn ON to indicate that the water level in Medium Level Point (equal and more than 50M) sense by Water Level sensor MH. At this point, the Red Light must in OFF condition.

d. Alarm Lamp (GREEN Light) will turn ON once Water Level SH sense water level is reach High Level Point (100M). The Water Pump will stop pump in the water to the tank.

e. The user might drain the water by set to OPEN condition for Manual Valve. As an option, the user also might fill the water by manually. It can be operate by adjusting the Selector switch to Manual mode. Then press the Push Button 1 to trigger the Water Pump.

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Ladder Diagram (Please use extra paper if required more space)

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vii) Discuss the advantages and disadvantaged of Discrete and Analog I/O module.

viii) Give an example of industrial application which is using analog input/output module and explain it clearly.

ix) Discuss the conclusion of this experiment.