3 output parameters, Output parameters – Festo Контроллер двигателя SFC-ST User Manual

Page 68

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4. Parametrizing blocks

4−14

Festo P.BE−SFC−DC−PB−S7−E N en 0604NH

4.4.3

Output parameters

Parameters

DeclaĆ
ration

Data
type

Description

_Start_R_WR

OUTPUT

BOOL

Start transfer of individual parameters

_RD_WR

OUTPUT

BOOL

Read/write individual parameter

_PNU

OUTPUT

INT

PNU of the current parameter

_Subindex

OUTPUT

BOOL

Subindex of the current parameter

_Length_WR

OUTPUT

INT

Length of the current parameter in BYTE

_Value_WR

OUTPUT

DWORD

Current parameter value to be written

Done_RxTx

OUTPUT

BOOL

Read DB / write DB completed

Progress

OUTPUT

INT

Progress of transmission in %

Fault_RxTx

OUTPUT

BOOL

Fault with Read DB / write DB

RET_VALUE

OUTPUT

INT

Return value after incorrect processing of the block

Tab. 4/8:

Output parameter PRM_DB−FILE

The block is ready to operate when the Done bit supplies
TRUE and there are no faults. Transmission is started with a
positive edge; the progress of the transmission is shown in
percent at the Progress" output. During transmission the
Done bit is set to FALSE.

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