Siemens NAN 67 Series Manual de servicio descargar pdf (Pagina 21)

2-5

Ladder Logic (LAD) for S7-300 and S7-400

C79000-G7076-C504-02

File

Press F1 for help

Options Help

SIMATIC Manager – TRAFFIC

NUM

TRAFFIC - <Offline> (Project)

TRAFFIC

S7 Program (1)

SIMATIC 300 Station1

Source Files

Blocks

OB1 FB6

DB5 DB6

ViewInsertEdit PLC Window

ON OFF

Figure 2-1 Starting the LAD Editor from the SIMATIC Manager

To create a block for the first time, you first create an empty block in the

SIMATIC Manager with which you can then open the Editor. Once you have

opened the LAD Editor you can then create further blocks.

S In the SIMATIC Manager you can select the “Blocks” folder and insert

the block type you want by selecting Insert

S7 Block

.... The new

block appears on the right hand side of the project window.

S Once you are in the editor, you can create a block by selecting File

New. In the dialog box that follows you are prompted to specify the block

type and number you require.

When you create a block, you also select the programming language you

want to use. The corresponding editor is then activated based on this

selection. To program in

LAD, select “LAD” as the working language.

You can open a block in the SIMATIC Manager by double-clicking the block.

Alternatively, you can open it by either selecting the menu command

Edit

Open Object or by clicking the corresponding button in the toolbar.

Creating a Block

Choosing a

Programming

Language

Opening a Block

Introduction

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Siemens NAN 67 Series Manual de servicio Pagina 21

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