Specifications

C-5

IP 240

EWA 4NEB 811 6120-02b

Function FC 172 (STEU_DOS)

The call, meaning and parameter values for the FC 172 function are de-

scribed below.

Ladder Diagram LAD

Statement List STL

FC 172

DBNR

FKT

ENO

PAFE

CALL FC 172 (

DBNR := ,

FKT

:= ,

PAFE := );

The table below provides an overview of the parameters required by the

FC 172 function.

Name Parameter

Type

Data Type Description

DBNR INPUT INT Data block number

FKT INPUT INT Function number

PAFE OUTPUT BYTE Error flag byte

DBNR: INT = x

x: Dependent on the CPU used (number 0 is not permitted)

For the values of the remaining parameters, please refer to the Manual

(Section 8.3.2, “Control Function Block”).

Introductory

Remarks

Calling the

Function

Parameters

Parameter Values

IP 240 Counter, Position Decoder and Positioning Module