Experiment No.1

The objective of this practice is to carry out an open loop control for flow using an

AVS-I solenoid valve.

Apparatus:

UCP-F

Control and Acquisition Software

Water

Procedure:

Connect the interface of the equipment and the control software.

2. Select the open loop control 1 option.

Clink the start button, and start the pump.

Now manually move the AVS-1 bar to control the flow through the valve in to the

container.

Experiment No.2

The objective of this practice is to carry out a closed loop control for flow by an

on/off controller using an AVS-I solenoid valve.

Apparatus:

UCP-F

Control and Acquisition Software

Water

Diagram:

Procedure:

Connect the interface of the equipment and the control software.

2. Select the on/off control option.

By double clicking on the on/off control, select the flow wanted. There is certain flow, a

tolerance and a performance time set by default. It allows the students to play with

these parameters and while seeing the influences of each of them.

It calculates the inertia of the system considering an on/off response and determines

the time limit for an exact control.

Experiment No.3

The objective of this practice is to carry out a closed loop control by an on/off

controller by the closing and opening of the A VS-I, AVS-2, AVS-3 solenoid valves and the

activation of pump 2.

Apparatus:

UCP-L

Control and Acquisition Software

Water

Diagram:

Procedure:

Connect the interface of the equipment and the control software.

Select the control on/off option.

Make a double click on the on/off control, select the flow wanted. there are a certain

flow, a tolerance and a performance time set by default. It allows the students to play

with these parameters and see the influences of each one.

The level control can be carried out by the activation of a single actuator, or of several

ones, to which different tolerances are allowed. These controllers work as security

system measures when the controlled variable exceeds in a tolerance the set value. To

activate or to disable any of these controllers you may have to double click on each of

them and press the button "PAUSE".

Calculate the inertia of the system for an on/off response and determine the limit time

for an exact control.

Experiment No.6 Introduction of each step of the process and creating an application for a PLC, loading it in PLC and use of digital outputs.

1. Run FPWIN Pro5 under Windows.

2. Create a new project.

3. Select a configuration for the new project.

4. Identify the different parts constituting the project.

5. We may enter the first elements for our new program.

6. Interconnect the components with the Draw Line tool and asign the X0 and Y0 addresses on the display, shown after clicking on the question mark of each component. (X and Y should be written in capitals).

7. Next, we will check the program created.

8. We may load the program next.

When commutting to the online mode in step 2, a pop-up window with a warning

message such as “the project is not logic” may be displayed. Click on No button of the pop-up. If there is a communication error, go to the online menu in Comunication Parameters of

the tool bar, the default configuration will be 115.200bps, 8 bits for data size, and 1 bit for the stop bit.

9. We monitor the execution.

10. Close the project.

Now it is time to check how the practice works. In order to do so, wire the Sw0 with the DI0 (DI0 reference to X0) and activate the Sw0 switch. The DQ0 output (DQ0 reference to Y0) will be illuminated. Try to swap Y0 for Y2 in the practice project. Reload the program again in the PLCE and verify DQ2 (Y2) activates this time when activating Sw0. You may repeat the former operation substituting by YA, DQ10 will be illuminated. (A(Hexadecimal) = 10(Decimal)).

Note: DI0 <-> X0 DQ0 <-> Y0

DI1 <-> X1 DQ1 <-> Y1 . . . . . . DQD <-> Y13 . .

DI15 <-> XF

Experiment No. 7

Use several inputs to implement logic OR & AND Gates with the purpose of activating an output. With the activation of 2 or 3 inputs, the output will be activated.

1. First, we may create a project for this new practice.

2. In this second step we may place the contacts over network1 and we may configure them

adequately, as shown in the following figure.

3. Next, we join the contacts and check the program.

4. We load the application in the PLCE, save and close our project.

5. Then, we may check the adequate operation of the PLC through the PLCE. In order to do so, we will connect Sw0 with DI0, Sw1 to DI1 and Sw2 with DI2. We may activate 2 of the 3 Switches (any will do) and we may check the DQ1 output is activated. We may connect as well DI0, DI1 and DI2 with Pb0, Pb1 and Pb2 respectively.