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PL7 JUNIOR/PRO Operate modes manual (Operate modes manual eng V4.0) - page 8

Debugging

Animating program elements

At a Glance

The animation of the parts of the program when the PLC is in RUN (rungs Ladder,

instruction LIST sequence, Structured text sequence, Grafcet) is carried out directly

in the language editors by activating the animation function when PL7 is connected

to a PLC.

Ladder rung

The editor animates the following elements:

animation

l the rungs are highlighted when they are running,

%M12

l the coils are highlighted when the associated bit is set to 1,

%M12

R

l the FB outputs are highlighted when they are set to 1. Some internal parameters

are animated by the display of their numerical value inside the block.

Note: A forced variable is indicated by F.

Animation of List The editor carries out animation in the following way:

sequences

l a variable at 1 is indicated by a black rectangle,

l a variable set at 0 is indicated by a white rectangle,

l a forced variable is indicated by an F.

Example:

LDN

%M0

ST

%M1

LD

%M2

ST

%M3

285

Debugging

Animation

Commands and functions:

commands

Com-

Function

mand

Utility →

Suspends animation.

Stop Ani-

mation

Utility →

Restarts animation.

Animate

Utility →

The animation is frozen, the variables change but the display is no longer re-

Freeze

freshed.

Note:

l the animation is synchronous with the end of the MAST task cycle.

l for all indexed objects, if index overflow occurs, there may be inconsistency in

the animation.

Example:

LD %M[%MW10] animation = status of indexed object even in the case of index

overflow.

ST %M1 animation = status of %M0 if there is index overflow.

287

Debugging

Grafcet debugging

At a Glance

Grafcet debugging allows you to:

l control charts in order to facilitate debugging,

l perform maintenance actions.

This makes it possible to check that the synchronization of operating modes and the

coordination of tasks is being carried out correctly (forcing command).

When an installation is switched to manual mode, either for adjustment or because

of an error, the context of the graph is saved (freeze command) and it is then possi-

ble to resume the cycle at the same place once the adjustment is finished or the fault

has been acknowledged.

How to gain

Carry out the following steps:

access to the

Step

Action

Grafcet

debugging bar

1

Click on the debugging bar icon .

2

The following bar appears:

Chart status

Actions on chart Prepositioning

Mast

Frozen

Error

PRG

RUN a

288

Debugging

Grafcet

The following illustration shows the arrangement of the command buttons in the de-

debugging bar

bugging bar.

Chart status

Actions on chart Prepositioning

Mast

Frozen

Error

PRG

RUN a

Zone

Functions

Chart status

Provides information about the chart status:

l Frozen:indicates whether or not the chart is frozen,

l Error: indicates whether there is an error in the chart,

l Button: can be activated when there is an error, is used to create an

information box with the list of active errors.

Actions on chart

Contains buttons which are used to:

l Freeze/Unfreeze the chart.

On Freeze, the active steps remain active and continuous actions

only are executed.

On Unfreeze, the operating cycle resumes from the same place.

l Initialize the chart on these initial steps. It develops from these steps

and continues in its current operating mode.

l Position the chart in an empty location with no step on the chart be-

ing active.

Prepositioning

Contains buttons which are used to:

l Position the chart on the steps to be prepositioned that are selected

from the grafcet editor.

Prepositioning is indicated by a full stop to the left of the step.

l Delete configured prepositions.

To delete the prepositioning of a step, select the step from the editor

and the Delete prepositioning command from the contextual menu.

Mast

Provides information on the task status:

l RUN a: Mast task active in Run,

l STOP a: Mast task active in Stop,

l RUN i: Mast task inactive in Run,

l STOP i: Mast task inactive in Stop,

l STEP: Step by Step program in progress,

l ERR: execution error.

The animation of the Grafcet section’s activity condition is displayed on the far left

of the debugging bar.

The

button is used to switch from the Grafcet debugging bar to the program

debugging bar.

289

Debugging

How to gain

Carry out the following steps:

access to the

Step

Action

Grafcet

1

In the Application browser in the Structure view, look at the Program direc-

debugging

tory and right click (contextual menu) on the G7 icon.

screen

2

The following screen appears:

Grafcet Debug Browser

operate

Prl

G7

Chart

G7

Macro0

G7

Macro1

LD

Post

The Grafcet

The Grafcet debug browser can be accessed from the Grafcet editor or from the ap-

debug browser

plication browser’s Grafcet section using the contextual menu.

Grafcet Debug Browser

operate

Prl

G7

Chart

G7

Macro0

G7

Macro1

LD

Post

This screen gives a hierarchical view of the chart with the nesting of the CHART

module and macro-steps.

This view is animated in online mode with the animation indicated by the absence

or presence of a token (an active macro-step is shown by the presence of a green

circle).

A certain number of operations are possible via:

l the contextual menu at the bottom of the screen,

l the contextual menu on an item describing a macro-step:

l deactivating a macro-step,

l activating a macro-step,

l editing a macro-step.

290

Debugging

Executing the programme

At a glance

Executing an application on a PLC can be controlled using the functions:

l RUN, STOP, INIT PLC,

l RUN, STOP at the level of a task (MAST or FAST),

l breakpoint and step by step,

l Grafcet debugging.

Finding out the

Carry out the following steps:

confirmation

Step

Action

conditions of a

section

1

In the Application Browser of the structure view, choose the section.

2

Right click (contextual menu) and select Properties.

Accessing the

Carry out the following steps:

contents of a

Step

Action

section

1

Go to the Application Browser of the Structure View.

2

Double click on the section icon.

Operating the

In runtime:

programme

l a green circle indicates that the section is confirmed,

l a red circle indicates that the section is not confirmed (confirmation bit at zero).

Forcing the

Carry out the following steps:

confirmation

Step

Action

values of the

section

1

In the Application Browser in the structure view, choose the section.

2

Select the contextual menu (right click) Force the activation condition to 0

orForce the activation condition to 1, this is indicated by a F on the green

circle.

291

Debugging

Executing the MAST task

Introduction

In this procedure, only the MAST task is executed.

How to put the

There are several ways in which the MAST task can be put into RUN:

MAST task into

l select the Debug → Run Mastcommand,

RUN

l select the Debug → Access the PLC debugging screen command and click on

the RUN button associated with the MAST task.

How to put the

There are several ways in which the MAST task can be put into STOP:

MAST task into

l select the Debug → Stop Mastcommand,

STOP

l select the Debug → Access the PLC debugging screen command and click on

the STOP button associated with the MAST task.

l click on the STOP icon on the general panel.

Note: The execution status of the task is shown in the debugging bar:

l STOP, RUN,

l a: the task is active (the %S30 system bit is at 1),

l i: the task is inactive (the %S30 system bit is at 0),

l Non Pr: the task is not programmed,

l STEP: step by step function in progress,

l ERR: execution error.

Duration

In periodic operation, the "Adjusted Period" column is used to adjust the task period.

adjustment

This adjustment is lost on cold start, it is the value entered in the configuration which

is taken into account in this case, it is possible to save the adjusted period using the

Services → Save the Set Period command.

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

period defined in the configuration.

The mimimum, current, maximum durations are provided by the PLC, the duration

button Init in the column Init resets these values in order to carry out new process

values.

293

Debugging

Executing the FAST task

Introduction

In this procedure, only the FAST task is executed.

How to put the

There are several options for putting the FAST task into RUN:

FAST task into

l select the Debub → Run Fastcommand,

RUN

l select the Debug → Access the UC debugging screen command and click on

the RUN button associated with the FAST task.

How to put the

There are several options for putting the FAST task into STOP:

FAST task into

l select the Debug → Stop Fastcommand,

STOP

l select the Debug → Access the UC debugging screen command and click on

the STOP button associated with the FAST task.

l click on the STOP icon on the general panel.

Note: The execution status of the task is shown in the debugging bar:

l STOP, RUN,

l a: the task is active (the %S30 system bit is at 1),

l i: the task is inactive (the %S30 system bit is at 0),

l Non Pr: the task is not programmed,

l STEP: step by step function in progress,

l ERR: execution error.

Duration

In periodic operation, the "Adjusted Period" column is used to adjust the task period.

adjustment

This adjustment is lost on cold start, it is the value entered in the configuration which

is taken into account in this case, it is possible to save the adjusted period using the

Services → Save the Set Periodcommand.

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

period defined in the configuration.

The mimimum, current, maximum durations are provided by the PLC, the duration

button Init in the column Init resets these values in order to carry out new process

values.

295

Debugging

Execution of a program with breakpoint

At a Glance

The software manages a single breakpoint which can be set in on-line mode on any

program element (LD rung or IL, ST, DFB sequence) that is contained in the MAST,

FAST, or SR tasks.

Setting these breakpoints is one of the functions of the debug bar.

How to access

Carry out the following steps:

the debug bar

Step

Action

1

Click on the Debug menu on the PL7 task bar.

2

Click on the Debug bar sub-menu.

Result: the following bar appears at the bottom of your PL7 screen

Setting a

Breakpoint are positioned directly from the languages editors.

breakpoint

Carry out the following actions:

Step:

Action:

1

Place the cursor on the program element (LD rung or IL, ST statement) that is

to be the breakpoint.

Example:

2

Select the Debug/Set the breakpoint command or click on the button

on the debug bar.

297

Debugging

With Structured Text:

Step:

Action:

1

Select the Debug/Line mode command or click on the button

on the

debug bar.

2

Place the cursor at the position on the instruction line at which the breakpoint

is to be set,

3

Select the Debug/Set breakpoint command or click on the button

on

the debug bar.

Note:

Setting a new breakpoint deletes any existing breakpoint.

Executing the

Execute the PLC/Run, Debug/Run Mast, Debug/Run Fast program if the PLC is

program

not already in Run.

The program is executed until the rung, the statement or the instruction line (with

Structured Text in line mode) associated with the point is reached. The statement,

instruction line or the rung is not executed.

The breakpoint is displayed in yellow (step in progress), so it is possible to execute

the program in step by step mode.

Accessing the

To place the cursor directly on the breakpoint set in the application (without first ac-

breakpoint

cessing the program module), select the Debug/Show Breakpoint Inserted com-

mand or click on the button

Accessing the

To place the cursor directly on the step in progress in the application (without first

step in progress

accessing the program module), select the Debug/Show Current Step command

or click on the

button on the debug bar.

Deleting the

breakpoint

Select the Debug/Remove breakpoint command or click on the button

on the

debug bar.

298

Debugging

Commands

The commands are accessible via the debug bar or the Debug menu:

Debug bar:

Debug menu:

Button:

Menu/Start task (in step by step mode).

Button:

Debug/Go to next rung/next sequence/next instruction line (execute

the program element at the position at which it stopped and stop at the

beginning of the following program element). With a SR call, this function

does not enter the SR body and executes all of it.

Button:

Debug/Call module (access SR module).

Button:

Debug/Exit module (return to calling module).

Button:

Debug/Abort Step by Step (the breakpoint is deleted and the task re-

starts).

Button:

Debug/Show Current Step(move directly onto the current application

step, without accessing the program module beforehand).

WARNING

With alarm relay:

At each step the alarm relay (or safety output) controlled by the PLC

momentarily changes its status. At the end of the cycle, the outputs are

refreshed for approximately 1 ms. To avoid these effects on the alarm

relay and the physical outputs, the %S9 bit can be set at 1, which will

force the physical outputs into fallback.

Failure to observe this precaution can result in severe injury or

equipment damage.

301

Debugging

Forcing analog inputs, TSX Micro

Introduction

You must be in connected mode to access the forcing tools.

How to force

Carry out the following steps:

analog inputs

Step

Action

1

Select the command AP → Connect.

2

In Application Browser in the structure view, left mouse click on the Config-

uration directory then double click on the Hardware configuration directory.

3

Select the position of the module then double click on it.

4

Select the channel.

5

Select the forcing value.

6

Click on the Force button.

Note: When a channel is forced, the information F appears in the value’s display

zone.

Forcing an input When an analog input is forced, the value present in the module’s input is not avail-

able. The forced value is indicated in the Value and Forcing fields on the screen.

The forcing of inputs is active whether the PLC is in RUN or in STOP mode.

Forcing an

When an analog output is forced, the value present in the module’s output is indicat-

output

ed in the Forcing field on the screen. The value calculated by the application re-

mains displayed in the screen’s Value field .

Deleting forcings To delete the forcing of a channel, select it and then press the Unforce button.

To delete the forcing of all of the module’s channels, click on the Global unforcing

button.

303

Debugging

Forcing analog inputs, TSX Premium

Introduction

You must be in connected mode to access the forcing tools.

How to force

Carry out the following steps:

analog inputs

Step

Action

1

Select the command AP → Connect.

2

In Application Browser in the structure view, left mouse click on the Config-

uration directory then double click on the Hardware configuration directory.

3

Select the position of the module then double click on it.

4

Select the channel.

5

Select the forcing value.

6

Click on the Force button.

Note: When a channel is forced, the information F appears in the value’s display

zone.

Forcing an input When an analog input is forced, the value present in the module’s input is not avail-

able. The forced value is indicated in the Value and Forcing fields on the screen.

The forcing of inputs is active whether the PLC is in RUN or in STOP mode.

Forcing an

The forcing is only possible if the task associated to the output is in RUN mode. If

output

the task is in STOP mode the output is put into fallback/maintain.

When an analog output is forced, the value present in the module’s output is indicat-

ed in the Forcing field on the screen. The value calculated by the application re-

mains displayed in the Forcing on the screen field. The value calculated by the

application remains displayed in the Value field on the screen.

Deleting forcings To delete the forcing of a channel, select it and then press the Unforce button.

To delete the forcing of all of the module’s channels, click on the Global unforcing

button.

304

Debugging

Adjustment of the application specific functions

Introduction

You must be in connected mode to access the adjustment of the application specific

functions.

How to adjust the

Carry out the following steps:

application

Step

Action

specific

functions

1

Select the command AP → Connect.

2

In the structural view’s Application browser selectConfiguration → Hard-

ware configuration.

3

Select the module position to be debugged then select the contextual menu

(right click) Open the moduleor double click on the module.

The attainable functions are:

l viewing the parameters,

l adjusting the selected channel.

4

Select the adjustment option to start the adjustment functions.

In local: the input parameters correspond to the initial parameters (value of the pa-

rameters during the first start or during a cold re-start).

In connected: the input parameters correspond to the current parameters (they are

lost during a cold re-start if they have not been saved beforehand).

The commands Commands and functions:

Command

Function

Service → Save pa-

Allows you to save the current parameters (replacing the initial val-

rameters

ues with the current values) if the application is in RAM memory.

Service → Restore

Allows you to replace the current values with the initial values.

parameters

Note: the functions and the commands which are available depend upon the ap-

plication specific module which you are using.

305

Debugging

Deactivation of

Action used to force to 0 all the execution conditions of the module sections.

all sections

Step:

Action:

linked to a

1

Select the desired functional module.

functional

module

2

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

sections command.

3

Select the Force to 0 command.

Activation of all

Action used to force to 1 all the execution conditions of the module sections.

sections linked

Step:

Action:

to a functional

module

1

Select the desired functional module.

2

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

sections command.

3

Select the Force to 1 command.

Cancellation of

Action used to unforce all the execution conditions of the module sections.

the forcing of all

Step:

Action:

sections which

1

Select the desired functional module.

are linked to a

functional model

2

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

sections command.

3

Select the Unforce command.

307

Adjustment of variables

14

Introduction

Subject

This chapter describes how to adjust variables.

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

Animation of variables: creating Animation tables

310

Working with animation tables

312

Animation and modification of the variables: DFBs

314

Modification of the variables:

316

List of forced bits

317

309

Adjustment of variables

Animation of variables: creating Animation tables

At a Glance

The software is used to create animation tables containing lists of variables and is

used to ascertain the value of the variables using various display types and to force

the bit variables. The variables tables can be created in offline or in online mode.

It is possible:

l to create an animation table automatically,

l to create an animation table manually,

l to enter a table of variables of the same type.

Automatically

The software is used to automatically create animation tables by selecting one or

creating an

more rungs LD (Ladder), statements IL (Instruction List), instructions ST (Structured

animation table

Text), or a DFB in the language editors and by activating a utility which initializes a

new table with all the objects contained in the selected program element.

Procedure:

Step

Action

1

Access the program module of the structure or function views, on which the ta-

ble is to be created.

2

Select the rung, the statement, the instruction and the DFB then select the Ini-

tialize Animation Table contextual menu. The tables which are automatically

created in this way can then be modified by deleting or adding new variables.

Manually

Procedure:

creating an

Step

Action

animation table

1

Select Animation Table in the application browser.

2

Select Edit/Create or use the contextual menu.

3

Enter the variables in address or symbol format and confirm with ENTER. The

current value of the variables is displayed.

4

When the table is created, close the entry box.

5

Specify the name of the table, enter any comments and confirm with ENTER

or Confirm As.

310

Adjustment of variables

Entering a table

Procedure:

of variables of

Step

Action

the same type

1

Enter the first variable.

2

Enter the separator - to increment the position or -.. to increment the channel.

3

Enter the length.

4

Confirm with ENTER.

Accessing an

Carry out the following steps:

existing

Step

Action

animation table

1

In the Application browser go to structure view.

2

Double click on the Animation table directory.

3

Double click on the Animation table that you want to access.

Result:the animation table editor appears.

Animation table

Animation table properties are:

properties

l Table name: it is possible to modify the name, if the table is not open.

l Location: this gives the name of any potential functional module associated with

the animation table when using PL7 Pro. The animation table can be assigned to

a different functional module or detached from the functional module (select

"None").

l Comment: the comment can be entered and modified.

How to display or

Carry out the following steps:

modify the

Step

Action

properties of an

1

Select the animation table.

animation table

2

Select the Properties contextual menu.

3

Carry out the modifications.

4

Click on OK.

311

Adjustment of variables

Working with animation tables

At a Glance

It is possible to perform several types of operation in an animation table:

l selecting and deleting one or more lines,

l entering a value for N consecutive variables,

l changing the format of N consecutive variables,

l inserting one or more lines,

l saving the animation table on the PC,

l deleting the table,

l changing the name of the table,

l masking the "Modification, Forcing" zone.

Selecting and

Selecting

deleting one or

Click on the rectangle on the left of the variable address (SHIFT+SPACE) in order

more lines

to select the line or click and drag to select more than one line (the selected lines

are highlighted in black).

Deleting

Select the line or lines and press Delete.

Entering a value

Carry out the following steps:

for

Step

Action

N consecutive

1

Click on the first of the consecutive values in the Current value field.

variables

2

SHIFT+Click on the last of the consecutive variables in the Current Value

field.

Result: the selected variables are highlighted in black.

3

Enter your value in the animation table entry field and confirm with Enter.

Result: the selected variables all have the same value.

Changing the

Carry out the following steps:

display format

Step

Action

for

1

Select N consecutive variables as explained above.

N consecutive

variables

2

Press the F9 key until the required format is obtained.

312

Adjustment of variables

WARNING

Displaying digital values:

If numerical values of more than three figures are truncated, change the

thousands separator value in the Windows Control Panel under Re-

gional Settings, numbers section.

Failure to observe this precaution can result in severe injury or

equipment damage.

Inserting one or

Select the line before which the insertion is to be made and select the Insert a line

more lines

contextual menu.

Saving the

Select the command Edit → Confirm asenter the name of the table and confirm with

animation table

OK.

on the PC

Deleting an

Procedure:

animation table

Step

Action

1

Select the table in question from the application browser.

2

Select Edit → Delete from the menu or press the DELETE key or use the De-

lete contextual menu.

Changing the

Procedure:

name of an

Step

Action

animation table

1

Select the table.

2

Press the F2 key or select the Properties contextual menu.

3

Enter the new name and confirm with OK.

Masking the

Select the View → Command Zone command.

"Modification,

Forcing" zone

313

Adjustment of variables

Automatic

It is possible to automatically create an animation table from a DFB instance code.

creation via a

The variables of the instances depend on the level of protection.

DFB instance

Several levels of protection are possible:

code

If the DFB type…

Then…

is not protected

the parameters and the public and private variables used in the code

are viewed and are modifiable. These standard functions are available

only for the PL7 Pro product to enable debugging of the DFB type. For

the PL7 Junior product, the variables are not modifiable and the private

variables are not viewed.

is write-protected

the parameters and public variables used in the code are viewed in

read-only.

is in know-how pro-

no access is possible.

tection

Contract/Expand

If the variable in the animation table is preceded by the + symbol, to know the objects

associated to the variable:

l select the variable,

l select the Edit → Expand command or double click on the +, so the list of asso-

ciated variables is displayed.

To contract the list of objects associated to the variable, select the Edit → Contract

command or double click on the -.

Displaying/

All the displayable ASCII characters (eg: 1,2,A,B,+,…) are displayed only in anima-

Modifying a

tion and the non-displayable ones are replaced by a vertical dash. The NULL char-

character string

acter shows the end of the chain. It is not displayed. In animation, only the first 10

characters are displayed.

To Display/Modify a whole string, you can:

l double click on the concerned cell,

l select the Display → Modify menu (as a contextual menu or on the menu bar).

Modification: all the objects whose attributes are mandatory inputs (objects whose

attributes are by reference) are not modifiable.

The operate

According to the type of table chosen in the DFB editor (static or dynamic), the An-

mode for the

imation tables tool offers:

tables

l static tables: Contract/Expand expand to the same level as the number of the

element,

l dynamic tables: (in connected mode with the PLC in RUN) Contract/Expand ex-

pand when the instance is executed and the number of elements is known.

315

Adjustment of variables

Modification of the variables:

Introduction

The software allows you to create animation tables containing lists of variables, to

know the value of the variables with different types of display and to force the bit vari-

ables.

The variables tables can be created in local or in connected mode.

Viewing the state In connected mode, you can activate (Service → Animate command) or deactivate

of the variables

a table’s animation (Service → Stop animation command). The animation is car-

ried out asynchronously: all the values of the objects are read in the processor at the

end of the MAST task’s cycle. You can view each value on the screen in different

display modes. The available modes depend on the type of the object. It is also pos-

sible to individually modify the value of a variable and to force or unforce the value

of a bit.

Modifying a

Steps to follow:

variable

Step

Action

1

Select the variable and put the cursor on the Current value zone.

2

Input the variable’s value and confirm with Modify.

Forcing a bit in

Steps to follow:

an animation

Step

Action

table

1

Select the variable to be forced and put the cursor on the Current value zone.

2

Select Force 0 to force the bit to zero. The forcing is shown by the letter F.

Select Force 1 to force the bit to 1 and the forcing is again shown by the letter

F.

Unforcing a bit in

Steps to follow:

an animation

Step

Action

table

1

Select the variable to be unforced and put the cursor on the Current value

zone.

2

Select Unforce.

316

Adjustment of variables

List of forced bits

Introduction

PL7 features a tool which allows you to view the list of forced bits in the PLC at any

given time without having to go into the animation table in the usual way.

Principles

The forced bits display function is available from the PLC menu in online mode only.

Launch the forced bits search and the resulting list is displayed in the animation ta-

bles editor. The entire man-machine interface is therefore sub-processed to the an-

imation tables editor.

The " Forced bits list" tool can be broken down into 2 components:

l A component in the PLC’s OS environment, with the following functions:

l managing a forced bits trace table in order to optimize the search,

l implementing a request to read the trace table.

l A component in the PL7 environment, with the following functions:

l searching for forced bits and creating a list of forced bits,

l initializing an animation table from this list.

List of forced

You must be in online mode to access this tool.

bits" tool

Click on PLC → List of forced bits.

There are two possible scenarios:

If…

Then…

the PLC

the following message is displayed: "No forced bits."

contains

no forced

bits

there are

a forced bits animation table appears:

forced bits.

TABLE_1 (Animated)*

F 1

10/11

Modification

Address Symbol / Name

Current value

Kind

Type

Comment

%SW108

9

F3

Modify

%M201

F1

F7

0

%M202

F1

%M203

F1

F8

1

%M204

F1

Forcing

%M205

F1

%M206

F1

F4

Forcing 0

%M207

F1

%M208

F1

F5

Force 1

%M209

F1

F6

Unforce

Display

Dec.

317

Diagnostic functions

15

Introduction

Subject of

This chapter describes the diagnostic functions available for diagnosing the hard-

chapter

ware and the application.

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

Diagnostic of the PLC’s last stop

322

Module/channel diagnostics

323

Program diagnostics

324

Module call stacks

326

Diagnostics DFBs

327

Implementation of diagnostics DFB

328

DFB diagnostics error messages

329

321

Diagnostic functions

Module/channel diagnostics

Introduction

The software provides various diagnostics tools. You must be in online mode to ac-

cess these tools.

Note: the diagnostics for the Discrete modules and for the analog modules are

performed in the same way as those described below.

How to access to

Carry out the following steps:

module/channel

Step

Action

diagnostics

1

Select the command PLC → Connect.

2

In the Application Browser in the structure view, select the Configuration

directory then double click on Hardware configuration.

When a module is faulty, a red indicator appears on the module position (see

example below).

0

1

2

3

4

8

9

10

P

T

D

D

D

D

S

S

E

S

E

S

Y

X

Y

Y

Y

Y

0

2

5

0

0

1

1

6

7

8

8

6

6

0

3

R

D

A

R

0

5

4

2

2

5

2

D

3

Select the position of the faulty module, then right click and choose the Open

the module command or double click on the selected position.

4

Click on the Diag button.

The Diagnostics module screen displays the errors classified by category: in-

ternal errors, external errors or other errors.

The Channel Diagnostics screen which is accessible by the Diag button in

the command zone is used to refine the results.

323

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