ue logo!-ejemplos de aplicación

7/31/2019 UE LOGO!-Ejemplos de Aplicacin

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SIMATIC Totally Integrated Automation

Aplicacin Tpica de LOGO!

If the water level drops below level (I1), the drinking watersupply is to switch on automatically.

If the water level reaches level (I2), the drinking water supply isto switch off automatically.

P

I3 (Pump off)

I1(Drinking water supply on)

I2

(Drinking water supply off)

I4(Pump off)

Q1(Drinking water supply line)


Paso 1: Insertando Conectores (CO)

How many inputs and outputs are needed to solve this task?

1. The tool must be selected if you

want to place input blocks, output blocks,

memory bits, or constants (high, low) on the

programming interface.

2. Then, the specific function blocks are

selected using this

symbol bar:

3. The following symbol now appears in the

work area:

Now, move the mouse to the required position.The function is inserted by clicking the left

mouse button.1.

2.

3.


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Paso 2: Insertando Funciones Basicas (BF)

Which basic functions are needed to solve this task?

1. Select the tool if you want

to place simple basic logic elements of

Boolean algebra on the programming

interface.

2. A specific function block is selected using

the symbol bar.

3. The following symbol appears in the work

area:

Now, move the mouse to the required

position. The function is inserted by clicking

the left mouse key.1.

2.

3.


Paso 3: Insertando Funciones Especiales (SF)

2. A specific function block

is selected using the symbol

bar.

3. The following symbol now

appears in the work area:

Now, move the mouse to the

required position. The

function is inserted by

clicking the left mousebutton.

1. Select thetool if you want to place

additional functions on the

programming interface.

Which special functions are needed to solve this task?

1.

2.

3.


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Paso 4: Conectando los Bloques

In order to complete the circuit, the individual blocks must be connected to one another:

1. The tool must be selected if you

want to connect the inputs and outputs of

the function blocks to one another.

Now, point the mouse to a connection pin of

a block and click using the left mouse

button. Keeping the mouse button pressed,

move the mouse until it is pointing at the

pin that you want to connect to and release

the mouse button. LOGO!Soft Comfort then

connects the two pins together. This results

in a connection between two block pins.Use the same procedure for the other

connections.


Paso 5: Insertando Campo de Textos (1)

Inserting text fields makes the program easier to understand.

LOGO! Soft Comfort gives you several options for inserting text in the program structure:

1. Use the context menu to inserting a comment for

each block in the program.


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Paso 5: Insertando Campo de Textos (2)

2. Insert your own text field.

A

1.

2.3.

4.


Paso 6: Moviendo y Ordenando

Once the function blocks are inserted and connected, the circuit program is done. Some follow-up work is

needed, however, to obtain a view of the created circuit that is visible at a glance and easy to understand. Objects

placed in the work area such as function blocks, lines, and text fields can be moved:

1. Select the

tool if you want to move

function blocks, text fields,

or connection lines.


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Paso 7: Alineando los Bloques

To achieve a more attractive and easier-to-view appearance for your program, you can align the individualfunction blocks vertically or horizontally.

1. First, the function blocks

that are to be aligned must be

selected.

2. Activate the button to vertically align the

selected function blocks.


Paso 8: Asignando Parametros (1)

In the case of special functions and basic functions, there us a tab for comments and one or more tabs for

parameters. Here, you can specify values or settings that are to be adopted by the function block in its circuit.

1.

Double-click

the function

using the leftmouse button.

3. Another address can be assigned for each individual

input and output block by means of block parameter

assignment. However, only the inputs and outputs not

already assigned in the circuit program are considered inthe selection.

1. Select function and

click using the right

mouse button.

2. Select theBlock

Properties menu item.

or

2.


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Paso 8: Asignando Parametros (2)

In addition, you have the option of changing and checking all of the block properties centrally.


Paso 9: Asignando Nombres de Conexin

For the sake of clarity, you can also assign symbolic names for the input and output

connectors in addition to the text fields in the program:


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Paso 10: Dar Formato a los Comentarios


Paso 11: Documentacin (1)

For purposes of program documentation, you can display all of the connectors, basic functions, and special

functions used in the program.

A list of all blocks used in the program is displayed using the

Edit -> Go to Blockmenu command. The list contains

information on the block number and the type of the block. For

example, you can display the special functions that you used. You

can enter the brief description of the block, I1, Q2, B02, etc., in

the search function, and you will be shown the position of theblock in the list. Clicking OK causes the block that you searched

for to be highlighted.


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You obtain additional information for program documentation from the information window. It isusually located at the lower edge of the screen.

The View -> Information Windowmenu

command displays program messages.

Following simulation of a circuit program,

the resources used along with the current date

and time of day are displayed in the

information window.



Program or system data can be entered using the File -> Propertiesmenu item in the General tab. These data

are displayed in the program printout in the parent window below.


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You can define which documents are to be printed under Propertiesin the Print Preview window. The

circuit diagram, the parameter list, and the list of connector names are normally selected.


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In the case of large or complex programs, it is often useful to divide up the circuit diagram onto severalpages.



Various connection lines must be separated when the program is divided onto several pages.

The connection lines can be easily separated using the selected cut tool. The interfaces are uniquely labeled by the

page number, block number, and input pin. By clicking on one of the interface wildcards again using the cut tool, the

separation is undone.


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Paso 12: Prueba del Programa (1)

Once the programming and documentation is completed, the program is tested.

I1

I2

I4

Q1(Drinking water supply)

You know that your program can run in LOGO!, but you still have to check whether it functions as intended. You may

also want to modify some parameters.You can experimentally change the input values, test the response to a power

failure, and compare your calculations or expectations with the actual output behavior.



An excellent tool is available for testing your program.

1. Select the tool if you want to

test your program.

2. Once the simulation is activated, a

symbol bar for operator control and

monitoring of inputs and outputs is called.

A software switch is used to simulate a

power failure in order to test the retentive

features of the circuit behavior.

3. The input states can be modified by

clicking the button in the symbol bar (2) or

clicking on the inputs in the display.

1.

2.

3.

3.

The connection sequence can be tracked by

the change in color of the connection lines

from blue (low signal) to red (high signal).

This facilitates the detection and removal of

errors significantly.


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As an additional aid for program testing, a particular switch functioncan be assigned to each input.

The context menu (right mouse click) can be used to assign an appropriate switch function to each of the inputs used

in the program. You can select from a momentary-contact switch, maintained-contact switch, and frequency input. For

frequency inputs, the simulated frequency setting in Hz can be entered. For analog inputs, the range and the starting

value is specified.

These parameters can also be changed and reviewed centrally using the Extras -> Simulation parameters menu

command.


Paso 13: Asignar un Password al Programa

In order to protect the program and the knowledge it contains, you can assign a 10-digit

password to be applicable to this program alone.

This password protects your program only on LOGO! Without the password,

you cannot change or view the program, only delete it. The password is also

needed to download a password-protected program to a PC.

To delete a previously assigned password, enter the old passwordand leave the

new passwordblank.


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Paso 14: Transferir Programa a LOGO! (1)

When programming in LOGO!Soft Comfort 3, you have the option of first implementing your circuit program and thendetermining the required unit using the Extras -> Define LOGO!menu command,

or you can use the Extras -> Unit Selectionmenu command to first define the LOGO! unit for which you want to create

your circuit program.

The unit selection shows the available function blocks

and memory resources for each selected unit.



Once a successful program test has been performed, the program should be transferred to the LOGO! Certain

requirements must be satisfied for this.

LOGO!

OK

ESC

Program ..

PC / Card ..

Clock ..

Start

>

SIEMENS

LOGO!

OK

ESC

SIEMENS

PC

-> Card

Card ->

>

LOGO!

OKESC

SIEMENS

PC

Stop?Press ESC

1. 2.

The LOGO! unit must be connected with the PC cable and prepared for the transfer using the PC/Card, PC

setting.


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All preparations have been made. The program can now be transferred.

Select the function to transfer a

circuit program created in the PC with

LOGO! Soft Comfort to a LOGO! unit.

Prior to transferring, LOGO! identifies the

minimum version required for the created

circuit program. If the created circuit

program cannot be transferred to the

available LOGO! unit, an error message is

displayed and the transfer is canceled.

If LOGO! is not suitably prepared for the data

transfer, an error message is displayed.

A message is displayed in the status

bar indicating that the data transfer

was successful.


Paso 15: Poner LOGO! a RUN

LOGO!OKESC

SIEMENS

PC

Stop?Press ESC

LOGO!OKESC

Program ..

PC / Card ..

Clock ..Start

>SIEMENS

LOGO!OKESC

Program ..

PC / Card ..

Clock ..Start>

SIEMENS

1.2.

3.

P

I3 (Pump off)

I1

I2

I4

Q1LOGO! 12/24 RC

LOGO!

OKESC

SIEMENS

I :0.,1.,2.

23456789

0123456789

01234

1


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Paso 16: Ajustar Hora y Fecha (1)

The software can also be used to set the system clock in LOGO! Of course, the time ofday can also be set directly on the unit.

To be able to use this function, theLOGO! must be placed in the

PC/Card, PC transfer mode

again.

Pressing the Writebutton transfers the

time-of-day setting to the LOGO!


Paso 16: Ajustar Hora y Fecha (2)

With LOGO! Modular, you have the option of configuring the system clock to automatically change for seasonal

time variations. This can be done by means of the software and directly on the device.

The LOGO! Must be placed in the PC/Card,

PC transfer mode for this function.

The time change in effect for the selected

region is applied.


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Otras Opciones

Various other settings can be made using the Extras -> Optionsmenu command.


Ejemplo de Aplicacin


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Control de Faja Trasnportadora

I1(ON)

I3 (OFF)I2(Fill)

Function Description

A bottle filling machine is to be controlled.

Part 2 When the sensor (I2) detects a bottle,the motor is switched off for 3

seconds (filling operation).Afterwards, the motor starts runningagain.

Part 1 The conveyor control is switched onor off using (I1).

When the conveyor control isswitched on, the motor for theconveyor belt (Q1) runs.

The motor is able to be switched offat any time by means of Off (I3).


Solucin: Control de Faja Part 1 (1)

I1(ON)

I3 (OFF)I2(Fill)

Part 1 The conveyor control is switched onor off using (I1).

When the conveyor control isswitched on, the motor for the

conveyor belt (Q1) runs.


OKESC

Edit Prg

Prg Name

Clear Prg

Password

>

LOGO! 12/24 RC

SIEMENS

Q1B01Q1B01Q1

B02B01

I1

x

&

Q1

B02B01

I1x

&

B01

B02

I3

1


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Solucin: Control de Faja Part 1 (2)

I1(ON)

I3 (OFF)I2(Fill)Part 1 The conveyor control is switched on

or off using (I1).

When the conveyor control isswitched on, the motor for theconveyor belt (Q1) runs.



Solucin: Control de Faja Part 2

I1(ON)

I3 (OFF)I2(Fill)Part 2 When the sensor (I2) detects a bottle,

the motor is switched off for 3seconds (filling operation).Afterwards, the motor starts runningagain.

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