pascalSCADA OPM: S7Types: Record TPDU

Pascal SCADA OPM

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Record TPDU

Description
Hierarchy
Fields
Methods
Properties

Unit

S7Types

Declaration

type TPDU = record

Description

: PDU structure.

Overview

Fields

header:PByte;
param:PByte;
data:PByte;
udata:PByte;
header_len:LongInt;
param_len:LongInt;
data_len:LongInt;
user_data_len:LongInt;

Description

Fields

header:PByte;

Point to start of PDU (PDU header)

param:PByte;

Point to start of parameters inside PDU

data:PByte;

Point to start of data inside PDU

udata:PByte;

Point to start of data inside PDU

header_len:LongInt;

Header length

param_len:LongInt;

Parameter length

data_len:LongInt;

Data length

user_data_len:LongInt;

User or result data length

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