7.7 GenTrailerType ObjectType

7.7.1 Overview

The GenTrailerType is based on the BaseObjectType and is intended to be used as AddIn. It contains a CRC 32 checksum which is calculated over the entire IREDES file. This is used for data integrity. The formal definition of the ObjectType is given in Table 40.

7.7.2 ObjectType definition

Table 40 – GenTrailerType ObjectType Definition
Attribute Value
BrowseNameGenTrailerType
IsAbstractFalse
References Node Class BrowseName DataType TypeDefinition Other
Subtype of BaseObjectType as defined in OPC 10000-3
0:HasPropertyVariable0:DefaultInstanceBrowseName0:QualifiedName0:PropertyType
0:HasPropertyVariable

FileCloseDate

DateTime0:PropertyTypeM, RW
0:HasPropertyVariableChkSumByteString0:PropertyTypeM, RW
Conformance Units
IREDES GenTrailerType

The component Variables of the GenTrailerType have additional Attributes defined in Table 41.

Table 41 – GenTrailerType Attribute Values for child Nodes
BrowsePath Value Attribute Description Attribute
0:DefaultInstanceBrowseNameGenTrailerThe default BrowseName for instances of this type.

7.7.3 ObjectType Description

The description can be found in Table 42.

Table 42 – GenTrailerType Attribute Values for Child Nodes
BrowsePath Description Attribute
FileCloseDateDate the file was created.
ChkSumCRC 32 checksum.