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Function FC 172 (STEU_DOS)
Introductory
The call, meaning and parameter values for the FC 172 function are de-
Remarks
scribed below.
Calling the
Function
Ladder Diagram LAD
FC 172
EN
DBNR
FKT
Parameters
The table below provides an overview of the parameters required by the
FC 172 function.
Name
Parameter
Data Type
Type
DBNR
INPUT
INT
FKT
INPUT
INT
PAFE
OUTPUT
BYTE
Parameter Values
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").
IP 240
EWA 4NEB 811 6120-02b
IP 240 Counter, Position Decoder and Positioning Module
ENO
PAFE
Description
Data block number
Function number
Error flag byte
Statement List STL
CALL
FC 172 (
DBNR :=
,
FKT :=
,
PAFE :=
);
C-5
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