Siemens NAN 67 Series Manual de servicio descargar pdf (Pagina 184)

14-6

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

C79000-G7076-C504-02

14.4 Integer to Double Integer

The Integer to Double Integer conversion instruction reads the contents

specified in the input parameter IN as an integer and converts the integer to a

double integer. The output parameter OUT provides the result. ENO and EN

always have the same signal state.

Certain restrictions apply to the placement of the Integer to Double Integer

conversion box (see Section 6.1).

Table 14-4 Integer to Double Integer Conversion Box and Parameters

LAD Box

Parameter Data Type Memory Area Description

IDI

EN BOOL I, Q, M, D, L Enable input

EN ENO

ENO BOOL I, Q, M, D, L Enable output

IN OUT

IN INT I, Q, M, D, L Value to convert

OUT DINT I, Q, M, D, L Result

Status Word Bits

I 0.0

If the signal state of input I 0.0 is 1, the

conversion is executed. The contents of

memory word MW10 is read as an integer

and converted to a double integer. The result

is stored in memory double word MD12. If

the conversion is not executed, the signal

state of output Q 4.0 is 1 (ENO = EN).

Q 4.0

I_DI

EN ENO

MD12INMW10

NOT

BR CC 1 CC 0 OV OS OR STA RLO FC

Write 1 – – – – 0 1 1 x

Function is executed (EN = 1):

OUT

Figure 14-4 Integer To Double Integer

Description

Move and Conversion Instructions

1 2 ... 179 180 181 182 183 184 185 186 187 188 189 ... 317 318

Sin comentarios

Siemens NAN 67 Series Manual de servicio Pagina 184