Siemens NAN 67 Series Wartungshandbuch PDF herunterladen (Seite 55)

100

101

4-3

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

C79000-G7076-C504-02

Note

When you change the declaration section of an FB, you have to recreate all

the instance data blocks associated with it in order to ensure their

compatibility. The same applies to data blocks which have been created on

the basis of a UDT.

Create a data block (DB) in the SIMATIC Manager or in the Editor

Edit the block properties.

Save the block.

LAD Editor

Edit the declaration table.

data block.

... Declaration for a single

... Assign to a UDT.

... Assign the

DB to an FB.

Instance DBShared DB

Select the desired method ...

Figure 4-1 Programming Procedure for Creating Data Blocks

Creating Data Blocks and User-Defined Data Types

1 2 ... 50 51 52 53 54 55 56 57 58 59 60 ... 317 318

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