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.
Table 40 – GenTrailerType ObjectType Definition
|
Attribute |
Value |
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|
BrowseName |
GenTrailerType |
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|
IsAbstract |
False |
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|
References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of BaseObjectType as defined in OPC 10000-3 |
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|
0:HasProperty |
Variable |
0:DefaultInstanceBrowseName |
0:QualifiedName |
0:PropertyType |
|
|
0:HasProperty |
Variable |
FileCloseDate
|
DateTime |
0:PropertyType |
M, RW |
|
0:HasProperty |
Variable |
ChkSum |
ByteString |
0:PropertyType |
M, RW |
|
Conformance Units |
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|
IREDES GenTrailerType |
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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:DefaultInstanceBrowseName |
GenTrailer |
The default BrowseName for instances of this type. |
The description can be found in Table 42.
Table 42 – GenTrailerType Attribute Values for Child Nodes
|
BrowsePath |
Description Attribute |
|
FileCloseDate |
Date the file was created. |
|
ChkSum |
CRC 32 checksum. |