Schneider Electric Option PL7 MMI 37, VISUDYN 5.2 User Guide

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General contents

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Section Page

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Presentation and installation 3

1.1

Introduction

1.1-1 Update of VISUDYN version V5, compared to the previous version

1.1-2 Update of VISUDYN version V52, compared to version V5

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3

3

1.2

General

1.2-1 VISUDYN features

4

4

1.3

Installing the software

1.3-1 Required hardware configuration

1.3-2 Preliminary operations

1.3-3 Installation procedure

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Operations to perform during the development phase

2.1

Declaring the VISUDYN function

2.2

Configuring the VISUDYN function

2.2-1 Setup methodology

2.2-2 Preliminary operations

2.2-3 New configuration

2.2-4 Reconfiguration

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10

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7

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6

2.3

Creation of tables and transfer to the target operator dialogue machine

2.4

Recommendations for modifying the environment

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11

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Using VISUDYN

3.1

Running VISUDYN

3.2

Screen levels

3.3

Definition of screen zones and user actions

3.4

Basic screen

3.5

Selecting a program address

3.5-1 Program address selection screen

3.5-2 Program reference screen for a selected object

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15

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18

3.6

Displaying logs

3.6-1 Program address log display screen

3.6-2 Object log display screen

3.7

Displaying and animating an equation

3.7-1 Ladder language equation display screen

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22

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1

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General contents

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Operator assistance

4.1

Error messages

4.2

Information on PLC reservation

4.3

Checking modifications to the PL7-3 application

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2

Presentation and installation 1

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1.1

Introduction

1.1-1 Update of VISUDYN version V5, compared to the previous version

• Animation of remote I/O on the FIPIO bus

• Reading remote I/O cross-references

• Recognition of "compound symbols"

• DWi and CDWi words displayed in "floating point" notation

• New variables for the OFB word bits

• Extension of variables to 21 characters

• Automatic reinitialization in the event of modification of the PLC application

• Zoom on the contents of function blocks in Ladder language

• Log manager (object or program address) for the program path

• Entry of a mnemonic symbol or variable during a search of the program references for an object.

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1.1-2 Update of VISUDYN version V52, compared to version V5

The main updates in VISUDYN V52, compared to version V5, are as follows :

• VISUDYN may be used for operator dialogue applications run on the following target machines :

- TSX PCM module in the PLC station,

- CCX 77FP dialogue terminal located at a distance from the PLC (or PC compatible).

• The station name (8 characters) is displayed in the bottom right hand corner of the

VISUDYN option screens.

• Forced bits are indicated in the display screens in either Ladder language or Literal language.

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3

1 Presentation and installation

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1.2

General

Experience shows that most failures in an automated system are first level failures caused by sensors and actuators. VISUDYN software enables maintenance personnel to display the entire program executed by the PLC, in real time, on an MMX37 operator dialogue station.

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1.2-1 VISUDYN features

The VISUDYN tool option in PL7-MMI 37, is run by TSX PCM 27/37 operating modules or by the CCX 77FP operator dialogue terminal (or a PC compatible). It offers the following functions :

• Access to equations containing a selected object

• Selection of one of these equations

• Display and animation of an equation

• Display of symbols, comments and extended comments assigned to objects

• Modification of the value of a selected object ("ADJUST" function when animating equations)

• Log manager (object or program address) for the program path

• Zoom on the contents of function blocks in Ladder language.

The VISUDYN tool can be run from :

• DIAG (select [S6 = Disp-obj] then [S2 = disp-Program])

• The ALARMS screen (using a preset key)

• A graphic flow chart

• The RUNMGR (Run Manager) screen.

The new version is displayed on the screens as follows :

M37 VISUDYN SOFT V52

COPYRIGHT TELEMECANIQUE 1992-1994, VISUDYN MMI37 V3.5

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4

Presentation and installation 1

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1.3

Installing the software

1.3-1 Required hardware configuration

For development

Since VISUDYN is a PL7-MMI 37 software option, a configuration comprising this software must be used : an FTX terminal or an IBM PS/2 or PC compatible, installed with :

• A mouse

• OS/2 operating system

• X-TEL or MINI X-TEL version

≥

V5 Software Workshop base

• PL7-3, PL7-3 GLD or PL7-3 GLT programming software

• PL7-MMI 37 V52 Man-Machine Interface application development software.

A system with at least 6 Mbytes of RAM and 60 Mbytes of hard disk space available is required.

For operation

During operation, the following is required

- A TSX PCM 27/37 Man-Machine Interface module (installed on a TSX 7 model 40

PLC) with at least a TSX RAM 1024 16 cartridge and a TSX PCX 27/37 process control terminal.

- A CCX 77 operator dialogue terminal or PC compatible. This terminal supports the operator dialogue application of a remote TSX 7 model 40 PLC, with communication via the FIPWAY/ETHWAY network or FIPIO/UNI-TELWAY bus (see TXT DM PL7

M37 RT1 - section 2 Installation : software installation).

Checking the hardware

The VISUDYN software package comprises :

• A 3 1/2" diskette, Ref. TSX LF M37 VSD V52

• This documentation, Ref. TSX DM M37 VSD V52E.

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1.3-2 Preliminary operations

Before installing VISUDYN on the hard disk, always :

• Read the licence and guarantee certificates concerning the restrictions that apply to copying and installing the software.

• Make a copy of the original installation diskette and only use the copy, so as to avoid accidental damage to the original diskette.

Important

The diskette is delivered write-protected. Do not change the position of the write-

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1 Presentation and installation

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1.3-3 Installation procedure

Installation of VISUDYN must be preceded by the following operations :

1 Check that the TXT L PL7 M37 V52 operator dialogue development software is

already installed (see corresponding documentation).

If this is the case, proceed with the installation of the VISUDYN software. If this is not the case, first install the TXT L PL7 M37 V52 software (see corresponding documentation).

2 Close all work sessions in progress (see corresponding documentation).

Installing the VISUDYN software

• Open an OS/2 full screen session

• Insert the diskette into the diskette drive

• Type the identification letter of the drive containing the diskette (a: or b:), and press

<Enter> to validate

• Once the correct prompt ([a:\] or [b:\]) is displayed, type install, and press <Enter> to validate

• Follow the prompts displayed on the screen, and press <Enter> to validate

• When the installation procedure is completed and if it is the last one, run the configuration check. Press <Enter> to validate

• Remove the diskette from the drive and return to X-TEL by the command <Ctrl><Esc>.

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6

Operations to perform during the development phase 2

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2.1

Declaring the VISUDYN function

Once VISUDYN is installed, the dialogue application must be defined (1 to 4) as well as the type of target machine (TSX PCM, CCX 77FP or PC compatible). Refer to the

PL7-MMI 37 manual section 3.1 : Selecting the target machine.

Once the selection has been made, the VISUDYN function must be declared in PL7-MMI

37 and configured. The files generated are transferred to the target machine (TSX PCM,

CCX 77 or PC compatible).

Declaration is necessary for the VISUDYN function to become an option which is recognized by the PL7-MMI 37 development software. To do this :

• Pull down the Utilities menu from the main PL7-MMI 37 screen and select Add

options which displays the list of options available

• Select the VISUDYN option, which then appears in reverse video

• Validate the selection.

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2.2

Configuring the VISUDYN function

This operation enables :

1 Generation of a local symbol database which will be transferred to the memory of the target machine so that it can be used by the VISUDYN function. The only symbols which will be selected are those that have the criterion DIAGPCM in XTEL-SDBASE.

2 Create indexed cross-reference tables.

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2 Operations to perform during the development phase

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2.2-1 Setup methodology

PL7-3 function

XTEL-TRANSFER

Update the

PL7-3 application

Generate cross-references

Store cross-references in the station

Files

PL7_3.BIN

Station_Name.APP

PL7_3.XR1

PL7_3.XR2

PL7_3.XR3

Update the

PL7-3 application in the PLC

XTEL-SDBASE

Update the symbol database

(DIAGPCM criterion)

PL7-MMI 37 function

Configure the

VISUDYN option

Create tables and transfer to the target machine selected to run the operator dialogue application

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Operations to perform during the development phase 2

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2.2-2 Preliminary operations

Before configuration, check for :

• The presence of the cross-reference files : PL7_3.XR1 (PL7 objects),

PL7_3.XR2 and PL7_3.XR3 (OFBs) and PL7_3.XR4 (remote I/O) generated by the PL7-3 function.

• The presence of at least one object allocated a mnemonic symbol by

DIAGPCM, generated by XTEL-SDBASE.

Caution

In V5, these cross-reference files must be saved in PL7-3, under the name : PL7_3

(PL7_3 default option). Ensure that their version is up to date in relation to the application to be diagnosed loaded in the PLC. Otherwise the configuration operations for the VISUDYN option will have to be repeated.

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2.2-3 New configuration

To start the configuration operation :

1 Run PL7-MMI 37 on the selected station.

2 Pull down the Create menu in the main PL7-MMI 37 screen and select the

Configuration Manager CM. The following screen is displayed :

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2 Operations to perform during the development phase

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3 Select the VISUDYN option which then appears in reverse video, and confirm the selection made with OK. Depending on the size of the application, configuration can take several minutes.

4 Once configuration is complete, press OK and quit the Configuration Manager.

Note

If the symbol database or the cross-reference files are missing, a dialog box indicates an error. In this case, run :

• SDBASE to generate the symbol database with the DIAGPCM criterion

• The PL7-3 function to generate the cross-reference files. To do this, load the station application, generate the complete cross-reference file (see the PL7-3 documentation) and store it under the name : PL7_3 (PL7-3 default option on a V5 station).

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2.2-4 Reconfiguration

Perform the same operations as for a new configuration. There are two possible choices :

1 If the symbol database is already configured, the user is prompted to reconfigure, based on the last configuration of this database. To do this, select OK (or Cancel).

2 If the cross-reference files are already configured, the user is prompted to reconfigure, based on the date of last configuration of these files. To do this, select OK (or

Cancel).

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Operations to perform during the development phase 2

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2.3

Creation of tables and transfer to the operator dialogue target

To be able to use the VISUDYN option during operation, a new image of the operator dialogue application must be generated and transferred to the memory of the target machine (cartridge with the TSX PCM module, hard disk with the T CCX 77FP terminal or PC compatible). To do this under PL7-MMI 37 :

1 Pull down the Generation menu from the main PL7-MMI 37 screen and select

Create tables

2 Once the tables are created, pull down the Generation menu again, and select Task

Selector which displays a list of the configured tasks

3 Select the VISUDYN option, which from then on appears in reverse video

4 Pull down the Transfer menu to load the image generated onto the target machine

5 Press OK to confirm the selection so that the generated files are transferred.

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2.4

Recommendations for modifying the environment

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This refers to the operating environment defined and associated with the active station application.

After modifying the symbol database, using XTEL-SDBASE

• Reconfigure the VISUDYN option, and confirm creation of the symbol database (see section 2.2-4)

• Recreate the tables and transfer them to the target machine (see section 2.3).

After modifying the application, using the PL7-3 function

• Generate a complete set of cross-references (see the PL7-3 documentation) and store it under the station name

• Reconfigure the VISUDYN option, and confirm creation of the cross-reference files

(see section 2.2-4)

• Recreate the tables and transfer them to the target machine (see section 2.3).

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3 Using VISUDYN

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3.1

Running VISUDYN

VISUDYN is run automatically like any other function.

During the initialization phase, it "learns" the PL7-3 application and therefore reserves the PL7-3 application for the entire duration of this phase. This is indicated by the following messages :

• "initialization of the memory configuration in progress" ...

• "initialization of the memory manager in progress" ...

(refer to Appendix A).

Comments

If the ACTIVE message appears in the "status" column of the Run Manager

(RUNMGR) screen, VISUDYN has already been initialized.

Initialization is complete when the Active message is displayed in the Status column of the Run Manager (RUNMGR) screen.

Note

Initialization cannot be performed if another program has already reserved the PL7-3 application.

In this case, attempting to run the program will fail and the message "Cannot reserve" will be displayed in the Run Manager (RUNMGR) screen. The user will therefore have to cancel the reservation of PL7-3 then run VISUDYN from the Run Manager (RUNMGR) (refer to the description on how to run VISUDYN in the foreground).

Running VISUDYN in the foreground

VISUDYN becomes a task in the MONITOR 37 application and is loaded in the target machine. There are four ways to run VISUDYN :

1

From the ALARMS function, when the list of alarms is displayed. The following operations must be performed :

• Use the Select command in the menu assigned to the <F4> BANNER function key

• Select the required alarm

• Press <F12> to run VISUDYN on this alarm.

2 From the DIAG function, when displaying and animating an equation (in Ladder or

Literal language). To do this :

• Display the screen which shows a list of equation objects

• Select the object to be accessed using VISUDYN

• Use the [S6 = Disp-obj] menu, then the [S2 = Disp-Program] menu to run

VISUDYN on this object.

3 From the Run Manager screen, after ensuring that no other program has already reserved the PL7-3 application. To do this, depending on the status of the task, perform the following operations :

If the task is Inactive :

• Select VISUDYN from the list

• Press <F5>

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Using VISUDYN 3

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If the task is Active :

• Select VISUDYN from the list

• Press <F10> to bring VISUDYN to the foreground.

4 From a graphic diagram, using the "FOR" function key with VISUDYN as the designated value.

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3.2

Screen levels

The VISUDYN software has four levels of display screen :

1 Display of program addresses using three methods :

• From the list of all program addresses in the PL7-3 application

• From the selection of an object (eg bit B1) which will provide a list of all the program addresses containing this object (if it exists!)

• From the log list of objects selected by the user.

2 Selection of a program address from three types of screen :

• Display and selection of tasks, modules and elements programmed in the PL7-3 application

• Display and selection of the list of all program addresses that contain the selected object

• From the log list of program addresses scanned by the user.

3

Display and animation of the equation at the program address selected above (eg

MAST SR1 TOP+10).

4

Display of additional information assigned to the object selected from the list of object(s) in the equation.

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3 Using VISUDYN

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GRAPHIC SCREEN

Alarm in banner

ALARM SCREEN

Selected alarm

DIAG SCREEN

Selected object

RUN-MANAGER

Screen

VISUDYN

Basic screen Init screen

Level 0

Levels 1 & 2

Log object screen

S1

Ref_object

S6

Log

∇

Ladder animation screen

∇

S1

Enter Object

∇

Program reference screen

∇

S1

Display equation

∇

S2

Select prog Adr.

∇

Program address selection screen

S6

Log

∇

Literal animation screen

∇

S1

Ref_object

∇

∇

S2

List_object

∇

Ladder objects animation screen

∇

S5

Adjust

∇

S4

Information

∇

S1

Ref_object

∇

∇

S4

Information

∇

S5

Adjust

Program address log screen

Level 3

Level 4

∇

Object extended comment screen

∇

ADJUST screen

Selected object

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Using VISUDYN 3

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3.3

Definition of screen zones and user actions

The user environment in VISUDYN is similar to that of other diagnostics software.

Zone 1

Zone 2

Zone 3

Zone 4

Zone 4

The cursor keys can be used in zone 2 : action menu options, and in zone 3 : data display area.

Zone 1

Zone 2

Alarm banner. This zone displays, in real time, the contents of the alarm banner in the ALARMS task : appearance time, D if the alarm was generated by a diagnostic OFB; * if the alarm must be acknowledged; symbol and associated comment and the total number of active alarms.

Action bar. Each action is assigned to an <Si> function key. These keys are available on TSX CPX 27/37 process control terminals or on the CCX 77 operator dialogue terminal. On a standard keyboard, these actions can be accessed by pressing <Shift> and <Fi> together.

Zone 3 Data display area. This is a selection zone. The "Cursor Up" and

"Cursor Down" keys enable movement of the reverse video highlight cursor up or down, line by line. The "Page Up" and "Page Down" keys enable movement of the reverse video highlight cursor up or down, 10 lines at a time. If the number of lines is less than 10, the cursor will jump to the beginning or end of the list.

Summary of the general function keys available in the current screen.

Just above zone 4 is the name (8 characters) of the station where the operator dialogue application is running.

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3 Using VISUDYN

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3.4

Basic screen

This screen enables activation of two types of access to the program address selection in the PL7-3 application.

[S1 = enter Object]

Accesses the program reference screen for a selected object.

[S2 = select prog Adr]

Accesses the program address selection screen.

<F3> Returns the user to the calling task.

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Using VISUDYN 3

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3.5

Selecting a program address

3.5-1 Program address selection screen

This screen displays the application layout and enables movement between the application program levels. Unprogrammed modules and Grafcet modules (CHART,

XM0,..., XMi) cannot be accessed. By default, access to this screen displays only the list of programmed tasks.

Once a task is selected, pressing "Cursor Right" will list all the modules programmed in the task and all the labels present in the module. An element is selected using the

"Cursor Up" and "Cursor Down" keys to increment the move in relation to the selected label.

[S1 = Display Logic]

Accesses the equation display and animation screen whose program address is selected in reverse video. This action is invalid if the selection is incomplete.

[S6 = History]

<F10>

Accesses the program address log display screen.

Activates the menu bar.

<F7>

<F8>

Displays the previous page of the list which is currently selected, if this is longer than one screen.

Displays the next page of the list which is currently selected, if this is longer than one screen.

<Esc>

<F3>

Returns the user to the calling screen.

Returns the user to the calling task.

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3 Using VISUDYN

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<

↑

><

↓

>

<

←

><

→

>

Move the cursor in reverse video on the screen. Cursor movement up or down is performed line by line.

<PgUp><PgDn>

Move the cursor on the screen. Cursor movement up or down is performed ten lines at a time. If the cursor reaches the beginning or the end of the module, the key becomes inactive.

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3.5-2 Program reference screen for a selected object

This screen lists all the program addresses containing the object selected by the callup screen or by the user. If this screen is activated from the program path selection screen, no object is selected, the list of addresses is blank and a dialog box is displayed for the user to enter the variable or mnemonic symbol for the object.

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Using VISUDYN 3

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The first line of this screen reminds the user which object is selected. For each program

address this screen displays :

Task

Module

The task : MAST, FAST, IT, AUX0, etc.

The module : MAIN, SR0 to SRn (if no Grafcet in the task),

PRL, POST, CHART, XM0 to XMj, SR0 to SRn (if Grafcet is used).

Submodule

Xi(A)

Xi(D)

Xi(C)

Xi->Xj

Xi->XMj

XMj->Xi

Significant only for the MAST task and the CHART and XMi modules.

Activation equation for step Xi

Deactivation equation for step Xi

Continuous equation for step Xi

Transition equation from Xi to Xj

Transition equation from Xi to macro-step XMj

Transition equation from macro-step XMj to step Xi.

Label/Top + ?

Determines the movement in relation to a label. By default the TOP label is used.

Usage in Module

Defines the mode of use of the object in the equation :

R : Used in read

W : Used in write

R-X : Used in indexed read

W-X : Used in indexed write

X : Used as an index

RT : Used to read a table

WT : Used to write a table

RT-X : Used to read an indexed table

WT-X : Used to write an indexed table

RM : Used to read a module

WM : Used to write a module

INT : Control the module interrupts.

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3 Using VISUDYN

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Description of actions available to the operator

[S1 = Display logic equation]

Accesses the display and animation screen for the logic equation whose program address is selected in reverse video.

[S2 = enter Object]

Activates the entry field for a new object.

[S6 = Log]

<F10>

<F7>

Accesses the object log display screen.

Activates the menu bar.

<F8>

Displays the previous page of the currently selected list, if this is longer than one screen.

Displays the next page of the currently selected list, if this is longer than one screen.

<Esc>

<F3>

<

↑

><

↓

>

<Enter>

Returns the user to the calling screen.

Returns the user to the calling task.

Move the cursor in reverse video on the screen.

Accesses the display and animation screen for the equation whose program address is selected in reverse video.

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Using VISUDYN 3

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3.6

Displaying logs

3.6-1 Program address log display screen

This screen displays a list of addresses of the last 40 equations scanned, indicating whether a program address is from a scan of objects or a scan of program addresses.

Comment

If an equation has been scanned several times, its address will only appear once in the list.

Equations scanned by pressing the <PGUP> or <PGDOWN> keys are not saved in the log.

[S1 = Display Logic]

Accesses the display and animation screen for the equation whose address is selected in reverse video.

<F10> Activates the menu bar.

<F7>

<F8>

Displays the previous page of the list which is currently selected, if this is longer than one screen.

Displays the next page of the list which is currently selected, if this is longer than one screen.

<Esc>

<F3>

Returns the user to the calling screen.

Returns the user to the calling task.

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3 Using VISUDYN

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3.6-2 Object log display screen

This screen displays a list of addresses of the last 40 equations activated from an object or a program address. The user can only select an object and activate the program reference screen associated with the object.

Comment

If an equation has been activated several times, its address will only appear once in the list.

Equations run by pressing the <PGUP> or <PGDOWN> keys are not saved in the log.

[S1 = Ref_object]

Accesses the program references screen for the object highlighted by the cursor. This screen automatically lists all program addresses containing the selected object.

<F10>

<F7>

Activates the menu bar.

Displays the previous page of the list which is currently selected, if this is longer than one screen.

<F8> Displays the next page of the list which is currently selected, if this is longer than one screen.

<Esc>

<F3>

Returns the user to the calling screen.

Returns the user to the calling task.

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Using VISUDYN 3

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3.7

Displaying and animating an equation

3.7-1 Ladder language equation display screen

This screen displays the contact network and animates the contacts or coils controlled by bit type objects. If a contact or coil is conductive, it is displayed in reverse video. If a contact or a coil is forced, F is displayed under the contact or the coil. By default, objects are identified by their address. The user can choose to display objects as symbols by selecting [S3=Symb/Var].

Comment

On a V4 station, the bit type objects of an OFB which are not assigned a mnemonic symbol and indexed bits are not animated. They are displayed with a question mark.

On a V5 station, all OFB objects are animated.

A reference for the object highlighted by the cursor is displayed at the bottom of the screen in the following format : <variable>:<symbol>:<comment> (or by ooo

Selection block ooo if the cursor highlights a block).

<

↑

><

↓

><

←

><

→

> Move the cursor to highlight an object in the network and activate the functions available :

S1 = Ref_object and S4 = Information.

[S1 = Ref_object] Accesses the program reference screen for the object selected by the cursor. This screen automatically lists all program addresses containing the selected object.

[S2 = Obj-List] Accesses a screen which displays, in real time, a list of objects and comments associated with the function block highlighted by the cursor.

[S3 = Symb/Var] Displays the objects in the Ladder network alternately by their symbol or PL7-3 variable. Objects which are not assigned a mnemonic symbol in XTEL-SDBASE are only displayed by their variable.

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3 Using VISUDYN

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[S4 = Information]

Accesses the extended comment (if there is one) for the object selected by the cursor.

[S5 = Adjust] Runs the ADJUST function in the foreground. Press <F3> to quit the

ADJUST function and return to VISUDYN.

<PgUp> Displays the previous equation in the module.

<PgDn>

<Esc>

<F3>

Displays the next equation in the module.

Returns the user to the calling screen.

Returns the user to the calling task.

Animating the list of objects for the function block highlighted by the cursor

This screen displays the list of objects contained in the function block highlighted by the cursor. For each of these objects, it displays : the display base (by default, Logic for a bit, Decimal for a word, etc), the value in real time, F for a forced bit object and the comment.

After selecting an object from the list, this screen enables modification of the object's display base [S2 = Base] and display of its extended comment, if this exists in

XTEL-SDBASE (DIAGPCM criterion) [S4 = Information].

Comment

If an "operate" block is selected, this screen displays, in real time, the phrase in Literal language contained in the block.

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Using VISUDYN 3

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Description of the actions available to the user

[S1 = Ref_object] Accesses the program reference screen for the object highlighted by the cursor. This screen automatically lists all program addresses containing the selected object.

[S2 = Base] Pulls down a menu enabling the user to change the display base for the object highlighted by the cursor :

• Decimal (D)

• Hexadecimal (H)

• Logic (L)

• Message (M)

• Floating point (F)

[S3 = Symb/Var] Displays the objects in the Ladder network alternately by their symbol or PL7-3 variable. Objects which are not assigned a mnemonic symbol in XTEL-SDBASE (DIAGPCM criterion) are only displayed by their variable.

[S4 = Information]

Accesses the extended comment (if there is one) for the object selected by the cursor.

[S5 = Adjust] Runs the ADJUST function in the foreground. Press <F3> to quit the

ADJUST function and return to VISUDYN.

<F10>

<Esc>

<F3>

<

↑

><

↓

>

<Enter>

<F7><F8>

Activates the menu bar.

Returns to the Ladder network display screen.

Returns to the calling task.

Move the cursor between the various objects.

Accesses the display and animation screen for the equation whose program address is selected in reverse video.

Display the previous or next page, if the list of objects cannot be displayed on one screen.

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Extended comment for an object

Change base sub-menu

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3.7-2 Literal language equation display screen

This screen can be accessed from the program reference screen for a selected

object or from the program address selection screen. The Literal phase is displayed in the upper part of the screen and the objects contained in the phrase are animated in the lower part. For each object, this screen indicates the display base, the value in real time and, if available, the mnemonic symbol (when explicitly requested by the user). The symbol and comment for the selected object are displayed above the list of objects.

[S1 = Ref_object] Accesses the program reference screen for the object highlighted by the cursor. This screen automatically lists all program addresses containing the selected object.

[S2 = Base] Pulls down a menu enabling the user to change the display base for the object highlighted by the cursor :

• Decimal (D)

• Hexadecimal (H)

• Logic (L)

• Message (M)

• Floating point (F).

[S3 = Symb/Var] Displays objects of the Literal phrase alternately by their mnemonic symbol or PL7-3 variable. Objects which are not assigned a mnemonic symbol in XTEL-SDBASE are only displayed by their variable.

[S4 = Information]

Accesses the extended comment (if there is one) for the object selected by the cursor.

[S5 = Adjust] Runs the ADJUST function in the foreground. Press <F3> to quit the

ADJUST function and return to VISUDYN.

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<PgUp> Displays the previous equation in the module.

<PgDn>

<F10>

Displays the next equation in the module.

Activates the menu bar.

<Esc>

<F3>

<

↑

><

↓

>

<F7><F8>

Returns the user to the calling screen.

Returns the user to the calling task.

Move the cursor between the various objects.

Display the previous or next page, if the list of objects cannot be displayed on one screen.

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Operator assistance 4

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4.1

Error messages

This section describes the possible causes of each error message, and the corrective action required to continue using VISUDYN.

Message

"Incomplete selection" in the screen described in section 3.5-1.

"Object unknown" in the screen described in section

3.5-2.

"Incorrect version of cross-

reference files" in the screen described in section 3.5-2.

Possible Cause(s) Corrective Action

Your selection is incomplete, an element is missing from the selection.

The object entered does not exist in the cross-reference files.

The object syntax is incorrect.

Press <Esc>, then complete the selection.

Press <Esc> to re-enter the object or press <Esc> twice to return to the previous screen.

The cross-references files are not up to date in relation to the application loaded in the PLC.

Press <Esc>, and update the cross-reference files (see section 2.2-4).

"Cross-reference file un-

readable" in the screen described in section 3.5-2.

"PLC already reserved" in the equation display screens.

The cross-references files are not present in the cartridge.

Press <Esc> to deactivate the task. Repeat the configuration procedure.

VISUDYN reserves the PL7-3 area during the initialization and decompilation phases. If during one of these phases another package also reserves PL7-3, a reservation conflict occurs.

Two possible choices :

1. Free the reservation of the application (see section 4.2).

Press <F1> (Repeat).

2. Press <F9> (End Task) to stop the task immediately.

The task must be restarted before any subsequent use

(see section 3.1).

"The PL7-3 application has been modified, Enter <F1> to restart VISUDYN or <F9> to end task".

"Exchange refused".

The PL7-3 application was modified while VISUDYN was in use.

Press <F1> to restart

VISUDYN on the new application or<F9> to stop the task.

Communication problem in the

PLC.

Press <F9> to stop the task or <Esc> to return to the calling screen. Restart

VISUDYN, from the RUN

MANAGER (see section

3.1).

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4.2

Information on PLC reservation

To read information on the PL7-3 application stored in the PLC memory, the PL7-3 application must be reserved.

This reservation is effective in the following cases :

1

During the VISUDYN initialization phase

If the application is already reserved when initialization starts, the VISUDYN task is deactivated. The error message "VISUDYN-ERR-RESERVED" is displayed on the

Run Manager screen.

2 When VISUDYN is in the foreground

In the foreground, VISUDYN minimizes the PLC application reservation periods

(only during decompilation of equations), so that the user is able to use a development tool which works on the PLC memory (for example PL7-3 under X-TEL,

XTEL-CONTROL, etc).

If a reservation error is indicated, the user can :

• repeat the reservation request by pressing <F1> (the other tool cancels the reservation)

• exit the VISUDYN task by pressing <F9> and return to the Run Manager.

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4.3

Checking modifications to the PL7-3 application

Each time an equation is read, VISUDYN checks that the monitored application has not been modified. If VISUDYN detects a modification to the application, the message "The

PL7-3 application has been modified, press <F1> to restart VISUDYN or <F9> to

end task" is displayed, and the user can automatically restart the VISUDYN task or confirm its deactivation.

Note

Update the cross-references.

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