Siemens NAN 67 Series Manual de Serviço descarregar pdf (Página 61)

100

101

4-9

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

C79000-G7076-C504-02

UDT56 - <Offline>

Address Symbol Data Type Initial Value Comment

speed

runtime

motor_on

STRUCT

INT

DINT

BOOL

100

L#0

0.0

+0.0

+2.0

+6.0

+10.0

history REAL

motor_off BOOL+10.1

END_STRUCT

FALSE

=12.0

0.000000e+000

FALSE

Maximum RPM

Figure 4-6 Declaring a UDT

The first and the final row of the declaration view of a UDT are already

allocated and display the key words STRUCT and END_STRUCT, which

define the beginning and end of a UDT. These rows cannot be edited.

Initially, two empty rows are displayed to allow you to declare your

variables. You must enter the variable name and data type. Initial value or

comments are optional. You can create more empty rows using the menu

command

Insert

Declaration Row

Before Selection / After Selection.

Note

Editing this declaration table is similar to editing the declaration table of

logic and data blocks.

Creating Data Blocks and User-Defined Data Types

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 317 318

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Siemens NAN 67 Series Manual de Serviço Página 61

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