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

Programming in rung language

Moving an

Carry out the following actions:

element in a

Step

Action

network (Rung)

Using the keyboard:

Position the cursor over the cell containing the element to be moved.

Using the mouse:

Select the element to be moved, and maintain the selection.

Using the keyboard:

Select Move using keyboard from the Edit menu or CTRL+L then move the

cursor by means of the arrow keys towards the destination cell(s) and confirm

using ENTER.

Using the mouse:

Move the element’s ghost to the required cell.

Confirm using ENTER or select the command Edit/Confirm (CTRL+W) or

click on the icon

Cutting/Copying/

Carry out the following operations:

Pasting one or

To…

you must…

the selection…

several graphical

copy one or several

select the element(s) to be copied and select

is placed on the Win-

elements

consecutive objects

the command Edit/Copy (CTRL+C)

dows clipboard.

paste one or several

select the cell which is the start point from

is kept on the Win-

consecutive ele-

which the element(s) contained on the clip-

dows clipboard.

ments contained on

board are to be pasted and select the com-

the clipboard

mand Edit/Paste (CTRL+V)

cut one or several

select the element(s) to be cut and select the

is placed on the Win-

consecutive ele-

command Edit/Cut (CTRL+X)

dows clipboard.

ments and place

them on the clip-

board

125

Programming in rung language

Cutting/Copying/

Carry out the following operations:

Pasting one or

To…

you must…

the selection…

several

copy one or several

select the Rung(s) to be copied and select the

is placed on the Win-

consecutive

consecutive Rungs

command Edit/Copy (CTRL+C)

dows clipboard.

networks

(Rungs)

paste one or several

select the Rung which is the start point from

is kept on the Win-

consecutive Rungs

which the Rung(s) contained on the clipboard

dows clipboard.

contained on the

are to be pasted and select the command

clipboard

Edit/Paste (CTRL+V)

cut one or several

select the Rung(s) to be cut and select the

is placed on the Win-

consecutive Rungs

command Edit/Cut (CTRL+X)

dows clipboard.

and place them on

the clipboard

Note:

The Cut/Copy/Paste function works in the same way for a selection of multi-Rungs

and between program modules.

Inserting a

To insert a rung between two networks of contacts (the inserted network is placed

network (Rung)

on top) or to place a rung at the top of the program module (TOP), after displaying

the program module carry out the following actions:

Step

Action

Select the command Edit/Select rung or point directly to an element of the

rung using the mouse.

Select the command Edit/Insert rung (CTRL+l).

Enter the rung and confirm using CTRL+W or click on the icon

126

Programming in rung language

Displaying variables as symbols or addresses

Procedure

Carry out the following actions:

Step

Action

Open the program module with right click + Open or with a double click.

Select the command:

l View/Addresses to display the variables as addresses.

l View/Symbols to display the variables as symbols.

l View/Symbols&addresses to display the variables as symbols/addresses

(Ladder editor only).

Note:

It is possible to run the language editor from the Options menu in:

l addresses view,

l symbols view,

l symbols&addresses view (for the Ladder editor only).

Example of

Ladder editor used with the 3 views.

display

127

Programming in rung language

Note

If a symbol or address has more than 8 characters, the display can be truncated.

Select the element, which is then displayed in full in the status bar. You can also use

the Information box.

The View/Collapsed command is used to reduce the size of the window whilst

maintaining the same level of information.

The View/Normal command allows you to return to the normal sized window.

128

Programming in rung language

Information box

Functions

This box, which can be accessed from all language objects, displays the symbols,

address and comments for the selected object (except for the operate blocks and

horizontal comparison) in an integrated format.

Display table according to object:

Single object

Complex object (operate

block, comparison and hori-

zon block)

l symbolic format in blue

l constructor name in black,

l constructor address in black,

l associated comments in

green.

How to access

Carry out the following steps:

the object

Step

Action

information box

In the LD language editor, select the object.

Click on the right mouse button (contextual menu) and then select Informa-

tion, or select theView → Informationcommand.

Note

The information box remains visible when it is not explicitly closed by the user. The

contents of the Information box is updated according to the current selection.

129

Programming in rung language

Online symbolization

Principal

Online symbolization allows you, at the time of input of a Ladder, List, Structured

Text program, to immediately (without opening the data editor) associate:

l an address to a new symbol,

l a symbol to a non symbolized address.

Procedure

With the Ladder editor, start at Step 1, with the Structured Text or List editors, go

straight to step 2.

Step

Action

Select the cell where the variable is situated.

Select the variable (highlight it).

Right mouse click on the variable and select Associate Symbol&Address.

Enter the address or symbol and the comment.

130

Programming in rung language

Input of a predefined function block (Ladder editor)

Procedure

From within the language editor, carry out the following actions:

Step

Action

Using the mouse:

From the graphical palette, select the element

Using the keyboard:

Select the destination cell with the help of the arrow keys, and press the keys

(Shift+F7).

Using the mouse:

Select the item SFB (only TSX Premium), and select the required function

block, then click in the destination cell (Test zone) to position the function block.

Using the keyboard:

Select the item SFB with the help of the arrow keys and accept with ENTER

(only TSX Premium), then select the function block using the arrow keys and

accept with ENTER.

Input the number of the function block and confirm with ENTER .

131

Programming in rung language

Function library

Introduction

The functions library brings together all the associated information and utilities con-

cerning functional elements (EFtab) and DFB function blocks (DFB tab).

Two access modes exist:

l in consult mode,

l by calling a function from the editor.

Consulting an EF

To access the library, select Library from the Tools menu then choose the EF tab

(default selection).

The functions library screen presents:

l The list of available families defined by:

l family name,

l the library version Lib.V,

l the version of families used in the current application App V (open station

only).

l The list of functions associated with each family defined by:

l function name,

l comments.

Note: In order to display an entire set of truncated comments (>>symbol at the end

of the line), double click on the function or place the cursor above and use the

Space bar.

l The parameters of the selected function, defined by:

l name,

l type (eg: DWORD),

l kind,

l comments,

l the result of a function (if there is one).

Note: In order to display the parameters of a function and its possible result, select

Parameters in the Function Information field.

134

Programming in rung language

Consulting a

DFB

Note: It is only possible to consult a DFB with TSX Premiums.

To access the library, select Library from the Tools menu then choose the DFB

tab.

For each DFB instance, the library screen presents:

l The list of DFBs in the application and defined by:

l the DFB name,

l the version (which is automatically incremented with the confirmation of each

modification),

l comments.

l The list of the instance for a given DFB(Select the instance),

l The DFB parameters selected defined by:

l the nameof the parameters,

l type (eg: DWORD),

l kind,

l comments.

Note: A new instance can be created from the screen for The list of the instance

for a given DFB.

135

Programming in rung language

Operate block entry

Introduction

There are various ways of selecting an operate block:

l using the mouse,

l using the keyboard,

With PL7 there is also help to enter the contents of an operate block.

Select an operate

Carry out the following steps:

block with the

Step

Action

mouse

Click on the graphics element which corresponds to the operate block in the

graphics palette at the bottom of the editor.

Click in the target cell ( Action zone) to position the operate block.

Enter the instruction string and confirm with Enter.

Select an operate

Carry out the following steps:

block using the

Step

Action

keyboard

Select the target cell with the arrow keys.

Press the key combination Shift+F3.

Enter the instruction string and confirm with Enter.

Operate block

The principles described below are illustrated using an example:

entry help

%MWO:=ABS(%MW1).

To enter a function call, carry out the following steps:

Step

Action

Enter the instruction as far as the function call (example %MWO=).

Select the contextual menu Enter a function call (right click or SHIFT+F8).

The "Parameters" option must be selected from the Function Information head-

ing.

Select the EF group using the mouse or Tab and arrow keys (example: Single

length integer).

Select thefunction name (example: ABS).

Enter the function variables and the entered function is displayed in the Call

Display field.

136

Programming in rung language

Note:

l some functions have additional entry screens which are accessed using the De-

tail button,

l when the function syntax is known, enter the syntax directly into the editor,

l it is possible to directly enable assisted entry on a given function by selecting

the function name and then selecting the Service → Enter the function call

command or right click,

l Tabulation and line feed characters are represented by $T and $N respectively,

they must be entered in $$T and $$N format.

Modifying the

Carry out the following steps:

function call

Step

Action

Place the cursor on the function (example ABS).

Select the context menu (right click) Modify the call.

137

Programming in rung language

Horizontal and vertical block entry

Introduction

There is the option of entering the comparison blocks in different ways:

l using the mouse,

l using the keyboard,

Entering a

Carry out the following steps:

comparison

Step

Action

block with the

mouse

Click on the required graphic element in the graphics palette.

Click on the target cell ( Test zone) in order to position the selected comparison

block.

Enter the comparison instruction and then confirm with Enter.

Entering a

Carry out the following steps:

comparison

Step

Action

block using the

Select the target cell with the arrow keys.

keyboard

Press the key combination Shift+F4 or Shift+F5.

Enter the comparison instruction and then confirm with Enter.

138

Programming in rung language

Assisted entry of a library function or of an instance of DFB type (Ladder editor)

Entry procedure

The instruction to be entered is:

for a library

Example below:

function

Perform the following actions to make an entry:

Step

Action

Using the mouse:

Select the command SHIFT+F8.

Using the keyboard:

Select the destination cell with the arrow keys (Action zone).

Using the mouse:

Click in the destination cell (Action zone) to position the text function block.

Using the keyboard:

Press SHIFT+F8.

Select the tab EF (selection by default). The "Parameters" option must be se-

lected under the heading Function Information.

Select the (EF) function family required (e.g.: Character string).

Select the (EF) function name (e.g. CONCAT).

Enter the (EF) function variables (%MB4:6; %MB14:9). The function entered

can be viewed in the Display the call field.

Using the mouse:

Confirm the selection with OK or ENTER .

Using the keyboard:

Select OK then confirm the selection with ENTER

With EFs, enter the variable to be associated with the function.%MB30:14:=

Click on ENTER.

139

Programming in rung language

Notes:

Certain functions offer extra screens for parameter entry (e.g.: human-machine in-

terface functions). These parameters are accessed with the Detail button that then

appears at the bottom of the screen.

When the function syntax is known, enter syntax directly into the editor.

It is possible to directly enable assisted entry on a given function by selecting the

function name then selecting the command Service/Enter function call

(SHIFT+F8).

Procedure for an

Perform the following actions to make an entry:

instance of DFB

Step

Action

type

Using the mouse:

In the graphics palette click on the element

Using the keyboard:

Select the destination cell

(Test Zone) with the arrow keys.

Using the mouse:

Select DFB.

Using the keyboard:

Press on the key combination, (SHIFT+F7).

Using the mouse:

Select the DFB type required.

Using the keyboard:

Select DFB using the arrow keys then enable with ENTER.

Using the mouse:

Select the required instance from Choice of instance or create a new instance

(name + possible comment) and confirm with Create.

Using the keyboard:

Using the Tab or arrow keys, select the required function block.

Using the mouse:

Click on OK.

Using the keyboard:

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

(name + possible comment), select Create then confirm withENTER.

Using the mouse:

Click in the destination cell (Test zone) to position the DFB type.

Using the keyboard:

Select OK then confirm with ENTER.

140

Programming in rung language

Note:

Two instances of the DFB type connected in series must be separated by at least

2 columns.

WARNING

For EFs displayed in red:

EFs which are displayed in red in the function entry help screen cannot

be used in the application. This limitation is encountered in the following

instances:

l when an earlier version of the EF is already used in the application,

l when the EF name is used as a variable linked symbol, and only con-

cerns the EF ROUND (family of single precision reals).

Failure to observe this precaution can result in severe injury or

equipment damage.

141

Programming in rung language

Replacing a variable in the application

Introduction

Finding and replacing an application variable as an address or a symbol (excluding

variables used in operating screens). The replacement in the application may be to-

tal or partial, automatic or manual.

Replacement affects the indicated variable and its dependent objects as well (word

extract bits…).

Exception: for Grafcet steps bits the associated activity times (e.g. %Xi.T) are not

replaced.

Replacement is carried out at the following levels:

l Application (in all tasks).

l Tasks (MAST, FAST, Evti).

l Complete section.

l Partial section (from address i to address j).

l Replacement is also carried out at functional module level (complete functional

module, sub-modules included).

Procedure

Carry out the following actions:

Step

Action

Select the command Tools/Replace variables or position the cursor over the

Station directory and select Replace variables from the contextual menu.

Put the variable to be replaced (as an address or a symbol) in the Findfield and

confirm with ENTER or TAB.

Put the variable to be replaced (as an address or a symbol) in the Replacefield

and confirm with ENTER.

Select the view:

l Structure view

l Function view

Select one or more modules:

l if replacing in all the application, go to point 8,

l if replacing in some of the modules, deselect the whole and select the mod-

ules, go to point 6,

l if replacing in one of the modules, deselect the whole and select the mod-

ule, go to point 6.

143

Programming in rung language

Step

Action

Select the label (if LD, ST, IL) or the page (if G7) at the beginning of the re-

placement by positioning the pointer on the list From.

If more precision is required, use the up and down arrow keys.

Select the label (if LD, ST, IL) or the page (if G7) at the end of the replacement

by positioning the pointer on the listTo.

If more precision is required, use the up and down arrow keys.

Select the type of replacement:

l if Replace, the replacement is carried out occurrence by occurrence,

l if Replace All, the replacement is carried out on all occurrences.

Notes:

l The status bar indicates the number of replacements carried out, and a re-

port on the replacements not carried out.

l The ESC key allows you to abort the function Replace, but the replace-

ments already carried out are kept.

144

Programming in rung language

Cross Referencing a variable in an application

Introduction

This function allows you to locate in the application:

l variables in the form of labels or symbols (except those used in operating

screens),

l DFB types (only on TSX Premium with Pl7 Junior and Pro),

l DFB instances (only on TSX Premium with Pl7 Junior and Pro),

l and to open modules/tasks/DFB types.

Principals of

The user realizes that the variable X is not the right value. To identify the cause he

using debugging

must therefore:

l find the places where this variable is used,

l obtain a list of statements, rungs and expressions,

l to display and verify the activation conditions of the variable.

Note:

In order to record the path of this search, the list elements thus visited are marked

with an asterisk (*).

Operational

A variable can be a read variable (R), a write variable (W) or a read/write variable

mode for objects

(R/W).

- "R" groups together the read operational modes, indexed read, indexed word, in-

put or input/output parameter of a indexed or non-indexed function.

- "W" groups together the write operational modes, indexed write, output or input/

output parameter of indexed or non-indexed function and execution of Block Func-

tions (SFB and DFB).

Search source

Table of variables:

variables

Bit

%Ixi; %QXi; %Mi; %Si

Word

%MWi; %MDi; %MFi; %KBi; %KWi; %KDi; KFi; %MBi; %SWi; %QWi;

%QDi; %IWi; %IDi; %NWi

Instruction

SRi; HALT

Other retrievable variables:

Byte variables

Word extract bits

Bit table

Grafcet bit table

Character string

145

Programming in rung language

Table of words and constants

Table of double words and constants

Constant character string

Standard Block Function

Standard Block Function element

Step status

Step activity time

NANET variables

Search options

For an indexed variable, the variable and the index are taken into account in the list.

Table of options:

Extract Bit

This option is for variables of types %MW, %KW, %IW, %NW,

%QW.It adds to the list the variable and the referenced bits.

Table Object

This option is for bit tables, word tables and immediate indexed vari-

ables.It adds to the list the immediate indexed table variables

whose first element is the input variable.

Channel Object

This option is for channel objects.It adds to the list all the objects of

the same referenced channel, including the tables and the extract

bits.

Network Objects

This option is for the network variables.It allows you to obtain all the

variables from the same remote module (NANET object).

FB Object

This option allows you to expand the list of SFB block function ele-

ments and the DFB type elements.

FB Instance

Only on TSX Premium with PL7 Junior and Pro.

This option is for DFB types.It allows you to obtain from the name

of a DFB type the sections using its instances.

146

Programming in rung language

Searching for

Carry out the following actions:

cross references

Step

Action

Select the icon

Enter the search source variable as an address or a symbol (E.g. %M10) and

the possible options then confirm via Search.

To display a module, select the module, via the Contextual menu, select Open

or double click on the module.

Selecting a variable from the list:

l Select the variable from the list, the list of tasks, modules, labels is updated.

Deleting a variable from the list:

l Select the variable, enable the contextual menu (right click) then click on Delete.

Displaying in structural view or in functional view:

l Use the View menu or the Function button.

147

Programming in rung language

Printing of a program

Procedure

Carry out the following steps:

Step

Action

Open the module with right click + Open or a double click.

Select the command File/Print (Ctrl+P) or click on the icon

Select a print range:

l if for the entire module, go to step 6.

l if for part of a module, go to step 4.

Select %Li/TOP/BOTTOM (if LD, ST, IL) or start page (if G7).

If more precision is required, use the up and down arrow keys.

Select %Li/TOP/BOTTOM (if LD, ST, IL) or endpage (if G7).

If more precision is required, use the up and down arrow keys.

Confirm with OK or ENTER.

Notes

The print type depends on the type of display selected in the View menu.

l Addresses: prints variables with addresses,

l Symbols: prints variables with symbols,

l Symbols&Addresses: prints variables with symbols/addresses.

149

Programming instruction list in

LIST language

Introduction

Subject of this

This chapter reminds you of the structure of a program in instruction list language.

chapter

It describes:

l How to create a program.

l How to use the different functions offered by the editor.

l How to manage the different modules making up the application.

What’s in this

This Chapter contains the following Maps:

Chapter?

Topic

Page

Structure of an Instruction List program

152

Creating a program in Instruction List

153

Accessing a statement or instruction (Instruction List)

154

Displaying variables as symbols or addresses

157

Information box

158

Online symbolization

159

Input of a predefined function block (List editor)

160

Assisted entry of a library function (List editor)

161

Direct access to a subroutine

163

Replacing a variable in the application

164

Cross Referencing a variable in an application

166

Animation of List program elements

169

Printing of a program

170

Export/Import of source files

171

151

Programming instruction list in language

Structure of an Instruction List program

Principal

A program written in instruction list language is composed of a series of instructions

executed sequentially by the PLC.

l An instruction takes up a maximum of one line.

l The instructions are organized into instruction statements (equivalent to a con-

tacts network). Each instruction statement is made up of one or several instruc-

tions.

l Each instruction statement begins with an exclamation mark (generated automat-

ically), it can include a comment and can be labeled with a label.

l A statement contains a maximum of 128 lines (instruction, comment, label).

l In the editor a statement being input is displayed in red.

l A selected statement is surrounded by a green frame.

l The current statement is surrounded by a black frame.

l The number of the current instruction (instruction line or label) as well as the total

number of instructions in the module are indicated in the bottom panel of the win-

dow (status bar).

Example

! (*Drying wait*)

%L2:

->Label

%I1.0 ->Start of statement

AND %M10

->Instruction

%Q2.5 ->End of statement

Notes:

Key-words (LD, AND, ST…) are colored blue.

Comments are colored green.

The remainder is colored black.

152

Programming instruction list in language

Creating a program in Instruction List

Procedure

Carry out the following actions:

Step

Action

Create a List section (See Creating or importing an LD, IL, ST section, p. 105).

1. Enter the first statement. As input begins, the statement is displayed in red.

2. Accept each line with ENTER.

3. Use the TAB key to separate the code from the operand.

4. On line symbolization (See Online symbolization, p. 159).

Confirm the input of the statement with the command Edit/Confirm

(CTRL+W)/SHIFT+ENTER) or via the icon

Rules

They are:

l At the time of confirmation, the input text is formatted giving you automatically in-

dented source code.

l If an error is detected at confirmation, the cursor is positioned over the first error

detected, the error message is displayed at the bottom of the window.

l In the editor, a statement is displayed in redwhile being entered.

l A selected statement is surrounded by a green frame.

l The current statement is surrounded by a black frame.

153

Programming instruction list in language

Accessing a statement or instruction (Instruction List)

Accessing a

When the program module is displayed, select the Edit/Go to (Ctrl+A) command or

statement or an

instruction

the icon

Access by label -> select "Label":

In the label zone, select…

position…

TOP

at the start of program module.

BOTTOM

at the end of program module.

%Li

at the corresponding label number.

The Move zone is used to make a movement relative to TOP/BOTTOM/%Li.

Access by instruction -> select "instruction":

In the instruction zone, select…

position…

instruction number

on the corresponding instruction.

The Edit/Go to current modification command allows you to position the cursor

on the current modification.

Selecting one or

The possible choices are as follows:

several

Select…

by…

or…

statements

one statement

positioning the cursor over the state-

by clicking in this zone, it is

ment and selecting the Edit/Select

framed in green.

statement from the menu

Example:

( * INIT

1 * )

%L2:

% I1. 0

%M0

%Q1 .0

several state-

by selecting the different statements

using the keys (Shift+Arrow).

ments

while holding down the left mouse but-

ton

part of a state-

by moving the cursor over the text to

ment

be selected while holding down the left

mouse button (Shift+Arrow)

154

Programming instruction list in language

Modifying a

Carry out the following actions:

statement

Step

Action

Position the cursor over the point where the modification is to be made.

Make the modification.

Confirm the modification with the keys (Ctrl+W) or (Shift+Enter) or

the Icon

The deletion possibilities are as follows:

Delete…

by…

then by…

one statement

selecting the statement to be deleted

pressing the Delete key.

part of a state-

selecting the part of the statement to

pressing the Delete key.

ment

be deleted

a piece of text and

selecting the text to be cut

selecting the Edit/Cut

place it on the clip-

(Ctrl+X) command.

board

Inserting a

Carry out the following actions:

statement before

Step

Action

the current

Position the cursor on the statement before which the insertion must be made.

statement

Select the Edit/Insert Statement command or (Ctrl+I).

Cut/Copy/Paste

Carry out the following operations:

part of a program

To…..

you must…

the text…

module

copy part of a

select the text to be copied and select

is placed on the Windows Clip-

statement

the command Edit/Copy (Ctrl+C)

board.

paste the contents

select the point from where the text

is kept on the Windows Clip-

of the Clipboard

must be pasted and select the Edit/

board.

into a document

Paste (Ctrl+V) command

cut a piece of text

select the text to be cut and select the

is placed on the Windows Clip-

and place it on the

command Edit/Cut (Ctrl+X)

board.

clipboard

155

Programming instruction list in language

Note:

The Cut/Copy/Paste function works in the same way for a selection of statement(s)

and between program modules.

Canceling a

To cancel a modification carried out on an unconfirmed statement, select the Edit/

modification

Undo changes command or the icon

This command allows you to return the sequence to its last confirmed state.

156

Programming instruction list in language

Displaying variables as symbols or addresses

Procedure

Carry out the following actions:

Step

Action

Open the program module with right click + Open or with a double click.

Select the command:

l View/Addresses to display the variables as addresses.

l View/Symbols to display the variables as symbols.

l View/Symbols&addresses to display the variables as symbols/addresses

(Ladder editor only).

Note:

It is possible to run the language editor from the Options menu in:

l addresses view,

l symbols view,

l symbols&addresses view (for the Ladder editor only).

Example of

Ladder editor used with the 3 views.

display

Note

If a symbol or address has more than 8 characters, the display can be truncated.

Select the element, which is then displayed in full in the status bar. You can also use

the Information box.

The View/Collapsed command is used to reduce the size of the window whilst

maintaining the same level of information.

The View/Normal command allows you to return to the normal sized window.

157

Programming instruction list in language

Information box

Functions

This box, which can be accessed from all language objects, displays the symbols,

address and comments for the selected object (except for the operate and horizontal

comparison blocks) in an integrated format.

Display table according to object:

Single object

Complex object (operate

block, horizon comparison

block)

l symbol format in blue

l constructor name in black,

l constructor address in black.

l associated comments in

green.

How to access

Carry out the following steps:

the object

Step

Action

information box

In the LIST language editor, select the object.

Click on the right mouse button (contextual menu) and then select Informa-

tion, or select theView → Informationcommand.

Note

The information box remains visible if it the user does not specifically close it. The

contents of the Information box is updated according to the current selection.

158

Programming instruction list in language

Online symbolization

Principal

Online symbolization allows you, at the time of input of a Ladder, List, Structured

Text program, to immediately (without opening the data editor) associate:

l an address to a new symbol,

l a symbol to a non symbolized address.

Procedure

With the Ladder editor, start at Step 1, with the Structured Text or List editors, go

straight to step 2.

Step

Action

Select the cell where the variable is situated.

Select the variable (highlight it).

Right mouse click on the variable and select Associate Symbol&Address.

Enter the address or symbol and the comment.

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Programming instruction list in language

Input of a predefined function block (List editor)

Procedure

From within the language editor, carry out the following actions:

Step

Action

From the Contextual or the Service menu, select the command Input a block

function call (Shift+F7).

Select the SFB type (counter, monostable…) using a double click (selection

via the keyboard is done using the Arrow keys and ENTER). The input mask is

displayed.

Function blocks The different function blocks and their instructions are:

Function blocks

Instruction

Syntax

TP/TON/TOF timer (%TMi)

Start

IN %TMi (Rising edge)

Initialize

IN %TMi (Falling edge)

Up/Down counter (%Ci)

Reset to 0

R %Ci

Set to Preset value

S %Ci

Increment by 1

CU %Ci

Decrement by 1

CD %Ci

Monostable (%MNi)

Start

S %MNi

Reset contents

R %Ri

(%Ri)

Saving in %Ri;I

I %Ri

Removing from %Ri,O

O %Ri

Drum-DRUM (%DRi)

Position at step 0

R %DRi

Change step

U %DRi

160

Programming instruction list in language

Assisted entry of a library function (List editor)

Entry procedure

The instruction to be entered is:

for a library

[%MW5:=%MW30 + 100 + ROL(%MW8,2)]

function

To enter a function, perform the following actions

Step

Action

Enter the instruction as far as the ROL function call.

Via the Contextual or Service menu, select the Enter call for a function com-

mand.

Select the required tab (default selection). For an elementary function (EF) the

"Parameters" option must be selected in the Function Information menu.

Select the (EF) function family (e.g.: Single length integer), or the required

DFB block (only on TSX Premium with PL7 Junior and Pro).

Select the (EF) function name (e.g. ROL), or the name of the DFB instance.

An instance can be created for a DFB:

1. Select Create.

2. Enter the name.

3. Enter a comment.

4. Confirm using Create.

Enter the (EF) function variables or DFB type parameters in the parameter

entry field. The function entered can be viewed in the Display the call field.

Confirm the selection with OK.

End the instruction entry (end character ]).

Confirm the entry with ENTER.

Notes

Certain functions offer extra screens for parameter entry (e.g.: human-machine in-

terface functions). These parameters are accessed with the Detail button that then

appears at the bottom of the screen.

When the function syntax is known, enter syntax directly into the editor.

It is possible to directly enable assisted entry on a given function by selecting the

name of the function then selecting the Service/Enter call for a function command

or performing a RIGHT MOUSE CLICK.

161

Programming instruction list in language

WARNING

For EFs displayed in red:

EFs which are displayed in red in the function entry help screen cannot

be used in the application. This limitation is encountered in the following

instances:

l When an earlier version of the EF is already used in the application,

l when the EF name is used as a variable linked symbol, and only con-

cerns the EF ROUND (family of single precision reals).

Failure to observe this precaution can result in severe injury or

equipment damage.

162

Programming instruction list in language

Direct access to a subroutine

Procedure

To access the subroutine’s input/viewing window during the input/viewing of a sub-

routine call, carry out the following actions:

Step

Action

Select the subroutine call object: SRi

%L1:

LD%M0

SR1

Select the command Facility/Open or in the Contextual menu select Open.

163

Programming instruction list in language

Replacing a variable in the application

Introduction

Finding and replacing an application variable as an address or a symbol (excluding

variables used in operating screens). The replacement in the application may be to-

tal or partial, automatic or manual.

Replacement affects the indicated variable and its dependent objects as well (word

extract bits…).

Exception: for Grafcet steps bits the associated activity times (e.g. %Xi.T) are not

replaced.

Replacement is carried out at the following levels:

l Application (in all tasks).

l Tasks (MAST, FAST, Evti).

l Complete section.

l Partial section (from address i to address j).

l Replacement is also carried out at functional module level (complete functional

module, sub-modules included).

Procedure

Carry out the following actions:

Step

Action

Select the commandTools/Replace variables or position the cursor over the

Station directory and select Replace variables from the contextual menu.

Put the variable to be replaced (as an address or a symbol) in the Findfield and

confirm with ENTER or TAB.

Put the variable to be replaced (as an address or a symbol) in the Replacefield

and confirm with ENTER.

Select the view:

l Structure view

l Function view

Select one or more modules:

l if replacing in all the application, go to point 8,

l if replacing in some of the modules, deselect the whole and select the mod-

ules, go to point 6,

l if replacing in one of the modules, deselect the whole and select the mod-

ule, go to point 6.

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PL7 JUNIOR/PRO Operate modes manual (Operate modes manual eng V4.0) - page 4