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PL7 JUNIOR/PRO Operate modes manual (Operate modes manual eng V4.0) - page 7

Function modules

11

Presentation

Object

This chapter describes the function modules.

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

Function modules

246

Properties of a function module

247

Creating a functional module

248

Programming a functional module

249

Debugging a functional module

250

Detaching/Deleting a functional module

251

Export of a functional module

254

Importing a functional module

255

Creating, deleting, moving, dragging and dropping an animation table in a

256

functional module

245

Function modules

Properties of a function module

Properties to be

List of different properties to be defined:

defined

l the short name: composed of 8 characters (e.g.: TR371), this name must be

unique in the application,

l the optional long name composed of 16 characters (e.g.: Continue/Withdraw for

BT371),

l the optional descriptive form stored in the PL7.

How to display or

Carry out the following steps:

modify the

Step

Action

properties

1

Right click on the function module, in the Function view of the Application

browser.

2

Click on Properties.

2

Carry out the modifications.

3

Click on OK.

Note: The Apply button confirms the modifications without closing the window.

247

Function modules

Creating a functional module

At a Glance

A functional module can be created offline, with the PLC in Stop or in Run.

It can be created at Station level or at the level of each existing functional module.

How to create a

Carry out the following actions:

functional

Step

Action

module

1

From the functional view, right click on the Station directory, or on the directory

of an existing functional module, or place the cursor on this directory and then

press Shift+F10.

2

Select Create.

3

Fill in the short name, the long name, the comment and confirm with OK.

How to create a

Carry out the following actions:

lower level

Step

Action

functional

1

Right click on the "higher level" module or position the cursor on it and press

module

Shift + F10.

2

Select Create.

3

Fill in the short name, the long name, the comment and confirm with OK.

Moving a

A functional module can be moved offline, with the PLC in Stop or in Run (this has

functional

no effect on the execution of the application). The movement only corresponds to a

module

modification in the functional architecture of the application (a module is linked di-

rectly to theStation directory level or to another functional module).

To move a functional module:

Step

Action

1

Left click (keeping the button held down) on the module to be moved,

2

Move the module to the desired position.

248

Function modules

Programming a functional module

Introduction to

A functional module has aprogram directory which may contain:

programming a

l LD, ST, or IL sections,

functional

l events,

module

l of a Chart, Prl, Post, Macro-Steps module.

Several scenarios are possible during functional module programming:

l 1st scenario: the section, event and graph already exist in structure view (See

Introducing the application browser, p. 102),

l 2nd scenario: the section, event, and graph are created from function view (See

Introducing the application browser, p. 102),

l

3rd scenario: the section, event and graph must be created from structure view.

1st scenario: the

The section has already been created in structure view;

section, event

Step

Action

and graph

already exist in

1

Select the section.

structure view,

2

Move the section to the functional module.

2nd scenario:

The principle is the same as for creating a section from structure view:

creating the

Step

Action

section, event, or

1

Right click on theProgram directory or place the cursor on the Program direc-

graph from

tory and then press Shift+F10,

function view

2

Select Create,

3

Select the Section, Event or Macro step tab,

4

Fill in the various headings in the same way as for creating a section from the

structure view. The name of the function module is stored at the structure view

level.

Rules

Take the following rules into account:

1

A Grafcet section can only be created offline and only in the Mast task.

2

A macro step or an event can only be created offline.

3

The other actions can be carried out offline, with the PLC in Stop or in Run.

4

Module protection applies to all sections linked to the functional module.

249

Function modules

Debugging a functional module

At a Glance

The organization of a functional module and the distribution of sections events and

Grafcet modules in the different modules has no effect on the execution of the pro-

gram. The program is executed in the order shown in the structure view. To debug

a functional module there are:

l standard debugging functions,

l additional functions allowing incremental debugging of the application, functional

module by functional module.

Deactivating all

This function is used to force to 0 all the execution conditions of the module sec-

sections linked

tions.

to a functional

Step

Action

module

1

Select the functional module.

2

From the contextual menu, select the Activation condition for the included

sections -> Force to 0command.

Activating all

This action is used to force to 1 all the execution conditions of the module sections.

sections linked

Step

Action

to a functional

1

Select the functional module.

module

2

From the contextual menu, select the Activation condition for the included

sections -> Force to 1command.

Canceling the

This action is used to unforce all the execution conditions of the module sections.

forcing of all

Step

Action

sections linked

1

Select the functional module.

to a functional

module

2

From the contextual menu, select the Activation condition for the included

sections -> Unforcecommand.

250

Function modules

Detaching/Deleting a functional module

Detaching one or

Detaching a functional module involves severing the links between a functional mod-

more functional

ule and the associated objects (code modules and animation tables),

module(s)

l the sections contained in the module are not deleted, only detached,

l the animation tables associated with the modules are not deleted but only de-

tached from the module.

To detach one or more of the functional modules, carry out the following steps:

Step

Action

1

Select the corresponding Station, Functional module, Program, Section, Event,

or Animation Table directory in the Function View of the Application Brows-

er.

2

Select the Detach or Detach All Included Elements contextual menu.

3

Confirm with Yes.

Note: this action is allowed in offline and in online mode, with the PLC in Stop or

in Run.

Introduction to

There are several different ways of deleting:

deleting a

l deleting one or more functional modules without deleting the code modules and

functional

the animation tables,

module

l deleting a functional module and deleting the code modules and animation ta-

bles,

l deleting all the functional modules and deleting the code modules and animation

tables,

l deleting a section, a macro-step or an event in a functional module.

Deleting one or

To delete a functional module without deleting the code modules and animation ta-

more functional

bles, you must:

modules without

Step

Action

deleting the code

1

Detach the module and its sub-modules.

modules and

animation tables

2

Delete the module or modules by right clicking (contextual menu) and selecting

Delete.

Note: you must be in offline mode.

251

Function modules

Deleting a

functional

CAUTION

module and

deleting the

Deleting the module entails deleting the submodules.

modules and

- the sections contained in the module are deleted,

animation tables

- the animation tables associated with the module are deleted.

Failure to observe this precaution can result in injury or equip-

ment damage.

Carry out the following actions:

Step

Action

1

Select the module.

2

Select Delete.

3

Confirm with Yes.

Note: this action is authorized in offline mode, with the PLC in Stop and is not au-

thorized in Run.

Deleting all the

functional

CAUTION

modules and

deleting the code

Deleting the module entails deleting the submodules.

modules and

- the sections contained in the modules are deleted,

animation tables

- the animation tables associated with the modules are deleted.

Failure to observe this precaution can result in injury or equip-

ment damage.

Carry out the following actions:

Step

Action

1

Select the Station directory.

2

Select Delete All Functional Modules.

3

Confirm with Yes.

Note: this action is authorized in offline mode, with the PLC in Stop and is not au-

thorized in Run.

252

Function modules

Deleting a

section, a

CAUTION

macro-step or an

event in a

functional

A section or a macro-step can be deleted in a functional module. They

module

are then deleted in the module and in the associated task. Deleting an

event only results in it being detached from the functional module be-

cause an event cannot be deleted from the application.

Failure to observe this precaution can result in injury or equip-

ment damage.

Carry out the following actions:

Step

Action

1

Select the desired section.

2

Select Delete.

3

Confirm with Yes.

Rules

Please observe the following rules

1

Deletion is authorized in offline mode with the PLC in Stop, but it is not autho-

rized in Run.

2

A Grafcet section or a macro-step can only be deleted in offline mode.

3

A PRL, Chart or POST module cannot be deleted, only detached.

253

Function modules

Creating, deleting, moving, dragging and dropping an animation table in a

functional module

Introduction

In a functional module, you can create, delete, move and drag and drop the anima-

tion table.

Creating an

Steps to follow:

animation table

If the table…

Then…

already exists

l select the animation table,

l move the animation table to a functional module on the Anima-

tion table directory’s level.

is to be created via the

l right mouse click on the module’s Animation table directory or

function view

put the cursor on this and press Shift+F10,

l select Create.

is to be created via the

it is also necessary that you specify the functional module it is to be

structure view

associated with.

Deleting an

Carry out the following actions:

animation table

Step

Action

1

Select the table.

2

Select the Delete contextual menu.

Moving an

Steps to follow:

animation table

If using…

Then…

the drag and drop func-

l left mouse click (and hold the mouse button down) on the table

tion

to be moved,

l move the table to the desired place.

the Properties contex-

l select the table,

tual menu

l select the Properties contextual menu.

l select the module’s name in the localization zone.

256

DFB function blocks

12

Presentation

What’s in this

This chapter describes how to set up DFB function blocks.

chapter

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

DFB types

260

Creating a DFB type

261

Programming a DFB type

262

DFB type instance

265

Running a DFB instance

267

Entering a DFB instance

268

How to protect a DFB

269

How to Import/Export a DFB type or an application containing DFB types

270

259

DFB function blocks

Creating a DFB type

Presentation

A DFB type can be made up in several steps:

l creating the DFB type (empty structure),

l DFB type parameters,

l DFB type programming (Code).

Creating the DFB

Carry out the following actions:

type

Step

Action

1

Open the application browser.

2

Right click with the mouse on the DFB type directory and select Create from

the context-sensitive menu.

3

Enter the name of the new DFB type.

4

Select the language Ladder or Structured tex.t.

5

Click on OK.

Note:

The choice of language Ladder or Structured text for the DFB code can be modi-

fied as long as the code is not entered.

Setting the

This is done using the DFB type editor. It consists of declaring:

parameters for

l the input, input/output and output interfaces,

the DFB type

l the public variables,

l the private variables,

l and documenting the description file.

DFB type

Programming a DFB is done using the DFB code editor which can be accessed

programming

from the DFB editor.

261

DFB function blocks

Entering and

Carry out the following steps:

modifying code

Step

Action

1

Click on Code in the DFB editor or select Utilities/Open then click on ENTER

to open the DFB code editor.

2

Enter the code.

3

Confirm the code.

Any confirmation made at DFB editor level is global.

Note:

DFB type code can only be entered or modified on an unprotected DFB type.

Code that has not been confirmed (in the process of being created or modified) is

indicated by a red dash in the left hand margin of the editor.

Search/Replace:

This function is used to search for and/or replace an object (interface or variable) in

to find or replace

the DFB code.

an object in the

code

Searching for an object:

Step

Action

1

Select Search/Replace... from the Edit menu

2

In the Search zone indicate the object to be searched for (e.g.: Input0).

3

Select Next to go to the different occurrences in the order in which they appear.

Search/Replace: to find/replace an object:

Step

Action

1

Select Search/Replace... from the edit menu.

2

In the Search zone indicate the object to be searched for (e.g.: Input0).

3

In the Replace zone indicate the object to be replaced (e.g.: Input1).

4

Select:

l Next to go to the first occurrence,

l Replace to replace only the current occurrence,

l Replace All to replace all occurrences.

263

DFB function blocks

Confirming a

Confirming a DFB type is a global operation which can be used to confirm the inter-

DFB type

faces, the variables, descriptive form and the code.

Carry out the following actions:

To confirm a DFB from…

you must…

DFB editor

click on the icon

or select Edit/Confirm then

press ENTER.

DFB code editor

click on the icon

or select Edit/Confirm DFB

type then press ENTER.

Note:

To confirm a DFB type, it must have at leastone Boolean input.

The DFB editor cannot be closed until the DFB type has been confirmed or can-

celed.

How to access a

This function is used to go to a line of code within the code of a given DFB type by

line of code

entering its numeric position.

Carry out the following steps to access a line of code:

Step

Action

1

When the code is displayed, select the Edit → Go to command.

2

Enter the line number then click OK.

Errors

If there is an interface, variable or code error, the DFB type cannot be confirmed,

and the system then positions itself at the first error.

You must:

1. Correct the error(s).

2. Reconfirm.

264

DFB function blocks

DFB type instance

Presentation

A DFB type instance is a named copy of a validated DFB type.

The same instance can be used several times in an application.

One DFB type can have several instances, in this case the Input/Output interfaces,

the public variables and the private variables are duplicated (one duplication per in-

stance). The DFB code is not duplicated.

The name given to an instance cannot be:

l a PL7 reserved word,

l a symbol,

l an EF (elementary function),

l the name of a DFB type.

Creating an

Carry out the following actions:

instance from an

Step

Action

application

browser

1

From the application browser, right click on the sub-directory DFB Variables/

Instances DFB.

2

Select the command Open.

3

Select the DFB type to be instanced using the mouse or the Tab and arrow

keys.

4

Enter the name of the new instance in the last line of the Name field (32 char-

acters maximum).

5

Enter a comment in the Comments field (80 characters maximum).

6

Click on ENTER.

Creating an

Carry out the following actions:

instance from the

Step

Action

function library

1

Select Library from the Tools menu then select the DFB tab.

2

Select the type of DFB to be instanced in a line of the Name field.

3

Click on the button Create.

4

Enter the name of the new instance (32 characters maximum).

5

Enter any comments.

6

Click on Create.

265

DFB function blocks

Entering a DFB instance

Presentation

Entering a DFB instance is done from:

l the ladder editor,

l the list editor,

l the structured text editor.

From the ladder

Carry out the following actions

editor

Step

Action

1

Click on the graphic element

in the graphics palette.

2

Select DFB.

3

Select the type of DFB required.

4

Select an instance required in Choice of instance or create a new instance

(name and any comments then click on Create.

5

Click on OK.

6

Click on the destination cell (Test zone) to set the type of DFB.

From the list or

Carry out the following actions:

structured text

Step

Action

editor.

1

Select the command Service/Enter function call or SHIFT+F8.

2

Select the DFB tab.

3

Select the required DFB block.

4

Select the required instance or create a new instance (any name + comments)

then click on Create.

5

Enter the DFB type parameters in the entry field parameters.

5

Confirm your selection by OK.

6

Confirm your selection by ENTER.

268

Debugging, adjustment,

documentation and appendices

III

Introduction

Subject of this

This section gives information about the application context and describes how to:

section

l Debug an application.

l Diagnose an application.

l Export/Import application modules.

What’s in this

This Part contains the following Chapters:

part?

Chapter

Chaptername

Page

13

Debugging

273

14

Adjustment of variables

309

15

Diagnostic functions

321

16

Documentation

333

17

Import/Export

341

18

Configuring the Uni-telway link

387

19

Configuring the FIPWAY link

399

20

OS Loader

409

21

Windows

417

271

Debugging

13

Introduction

Subject of this

This chapter describes the PL7 debugging functions.

chapter

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

Introduction to the PLC debugging screen

275

CPU screen designation zone

276

Information zone

277

Task Zones

278

Operating mode zone

280

Event zone

281

Last stop zone

282

Realtime clock zone

283

Modification of the program in Run mode

284

Animating program elements

285

Grafcet debugging

288

Executing the programme

291

Task properties

292

Executing the MAST task

293

Executing the FAST task

295

Execution of a program with breakpoint

297

Executing a program in step by step mode.

300

Forcing TOR input

302

Forcing analog inputs, TSX Micro

303

Forcing analog inputs, TSX Premium

304

273

Debugging

Introduction to the PLC debugging screen

How to access

Carry out the following steps:

the PLC

Step

Action

debugging

1

Click on the Debug menu on the PL7 task bar.

screen

2

Click on the Access PLC debugging screen sub-menu.

PLC Debugging

ThePLC debugging screen offers different functions and information, which are di-

screen

vided up into zones:

PLC debugging screen :

TSX 57352 [RACK 0 POSITION 0]

Debugging

Designation: PROCESSOR TSX P 57352

RUN IO

ERR

DIAG...

Information

Processor present:

TSX 57352

Processor version:

3.7(88)

Network address:

SYS

Number of forced bits:

0

Task

Period

Min.

Current

Max.

Cycle time

Watch

Opera-

Stat

Cmd

Enable

Error

Init

Reset

Set

Duratio

DurationDurati

Fipio

Dog

ting

us

task

duratio

Def

MAST

CYCLIC

2

6

6

0

250

STOP a Run Deactivate Def Init Reset

FAST

0

0

0

0

0

0

Not

Operating mode

Events

Output fallback

Warm Restart

Status:

Active STOP

Error

Bit error reset

Outputs in fallback mode

Cold Start

Number of events:

0

Last stop

Realtimeclock

Cause

Change to stop

Wednesday

Wednesday

23/02/

OK

Update

Date:

23/02/

Time:

10:16:33

10:27:08

Cancel

l

Designation (See CPU screen designation zone, p. 276) zone,

l

Information (See Information zone, p. 277) zone,

l

Task (See Task Zones, p. 278) zone,

l

Operating mode (See Operating mode zone, p. 280) zone,

l

Event (See Event zone, p. 281) zone,

l

Last stop (See Last stop zone, p. 282) zone,

l

Real time clock (See Realtime clock zone, p. 283) zone.

Note: To access the debugging functions you need to be in online mode (PLC →

Connect).

275

Debugging

CPU screen designation zone

At a Glance

This zone allows you to find out the execution status of an application in the PLC.

Designation Zone:

Designation: PROCESSOR TSX P 57352

RUN

IO

ERR

DIAG...

Description

Elements and their functions:

Element

Function

The RUN

This indicates the state of the PLC:

indicator

l it is constant when the PLC is in RUN,

l it blinks when the PLC is in STOP.

The I/O in-

Red light indicating the errors on another module in the station or a configura-

dicator

tion error.

The ERR

Red light indicating the errors relating to the processor and its on-board devic-

indicator

es (PCMCIA memory card and PCMCIA communication card).

The DIAG

It gives access to diagnostics information.

button

276

Debugging

Information zone

At a Glance

This zone provides miscellaneous information:

Information zone:

Information

Processor present:

TSX 57352

Processor Version:

3.7(88)

Network address:

SYS

Number of forced bits:

0

Description

Fields and their function:

Field

Function

Processor present

Provides information about the type of processor in the PLC.

Network Address

Provides information about the PLC network address.

Processor version

Gives the version of the processor which is in the PLC.

Number of forced

Indicates the number of forced bits.

bits

277

Debugging

Task Zones

At a Glance

This zone gives access to the various FAST task and MAST task execution com-

mands:

l RUN/STOP commands,

l Activate/Deactivate Task commands,

l setting periods,

l Period Initialization command,

l Error Management commands.

Task Zone:

Tasks

Period Minimum

CurrentMaximum

Cycle time

Watch

Operating

Enable

Init

Reset

Status

Cmd

Fault

Set

Duration DurationDuration

Fipio network

Dog

Mode

task

duration

Fault

MAST

40

4

10

55

4

250

RUN

a

Stop

Deactivate

Fault

Init

Reset

FAST

5

1

1

3

0

100

RUN

a

Stop

Deactivate

Fault

Init

Reset

MAST or FAST

The RUN/STOP buttons associated with the MAST and FAST tasks are used to

task RUN/STOP

switch to RUN or STOP mode.

command

In RUN mode the inputs are read, the program is executed and the outputs are re-

freshed.

In STOP mode the inputs are read, the program is not executed and the outputs are

not refreshed.

Note: These functions are also accessible via the Debug menu.

MAST or FAST

The Activate/Deactivate buttons associated with the MAST and FAST tasks are

task Activate/

used to activate or deactivate a task.

Deactivate

When a task is activated, the code is scanned and executed. The inputs/outputs are

command

refreshed.

When a task is deactivated, the code is neither scanned nor executed. The inputs/

outputs are still refreshed.

Note: The Status field informs you of the status of a task:

l a: for active (the system bits %S30 and %S31 are set at 1),

l i: for inactive (the system bits %S30 and %S31 are set at 0).

278

Debugging

Setting periods

In periodic operation, the "Period set" column is used to set the task period. This set-

ting is lost on cold start. The value entered in the configuration is then taken into ac-

count. It is possible to save the period set using theUtility → Save task periods

command.

Note: The Utility → Restore task periods command replaces the period set with

the period defined in the configuration.

Error initializa-

The minimum, current and maximum durations are provided by the PLC.

tion command

The Init button in the Init column restores these values in order to carry out new

measurements (except the current duration).

Error

Buttons and functions:

management

Button

Function

commands

Fault bit

Enables any errors in the corresponding task to be viewed.

Reset

Is used to reset the system bits associated with the task errors to zero, in order

to be sure that the error(s) is/are still valid.

279

Debugging

Operating mode zone

At a Glance

This zone gives access to various modeling buttons:

l Warm restart,

l Cold start,

l Output fallback.

Operating Mode Zone:

Operating mode

Output fallback

Warm restart

Outputs in fallback mode

Cold start

Description

Buttons and functions:

Button

Function

Warm Restart

Click on this button to simulate a warm PLC restart.

This sets the %S1 bit to 1, which for example is used to command a partial

initialization program.

Cold start

Click on this button to simulate a cold PLC start.

This initializes the data, the system, and sets the %S0 bit to 1 which (in this

case) is used for example to command a specific initialization program.

Output fall-

Is used to switch the outputs into fallback mode.

back

When the outputs are in fallback, the Output fallback button becomes Main-

tain outputs. It is therefore used to exit the fallback mode.

280

Debugging

Event zone

At a Glance

Event processing can be globally enabled or inhibited by the application program by

means of the %S8 system bit or a terminal command (program debugging function).

If one or several events occur whilst they are inhibited, the associated processing is

lost.

The Event zone gives access to different functions.

Event Zone:

Events

Status:

RUN inactive

Fault

Reset Fault Bit

Number of events:

0

Description

Elements and functions:

Element

Function

Number of

Indicates the number of events executed.

events

Default button

Is used to view the default bits and to access the events diagnostics pro-

gram.

Reset fault bit

Is used to reset the fault bits associated with the execution of events to zero.

button

Status field

Informs about the status of an event (active/inactive, RUN/STOP).

Icon

Is used to activate/deactivate events.

281

Debugging

Last stop zone

At a Glance

This zone gives the diagnostics on the last stop of the PLC.

Last stop zone:

Last stop

Cause

Change to Stop

Tuesday,

Date:

29/02/2000

Time:

09:31:59

Description

Fields and functions:

Field

Function

Cause

Gives the causes for the last stop of the PLC.

field

Date field

Gives the date of the last stop of the PLC.

Time field

Gives the time of the last stop of the PLC.

282

Debugging

Realtime clock zone

At a Glance

This zone gives access to the realtime clock settings.

Realtime clock zone:

Realtimeclock

Tuesday,

29/02/2000

OK

Update

11:09:49

Cancel

Description

Buttons and functions:

Button

Function

OK button

Is used to confirm once the date and the time have been set using the double

arrows.

Update

Updates the realtime clock according to the date and time of the terminal.

button

Cancel

Cancels all modifications if the PLC update has not been confirmed.

button

283

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