DtmCategory

Specifies the category of a DTM. The different DTM categories reflect the physical entities which are represented by a DTM. (Provides mapping to Fdt.Dtm.DtmCategory).

The fields of the DtmCategory DataType are defined in the following table:

Name	Value	Description
DeviceDTM	0	A Device DTM contains the application software for a ‘normal’ field device, e.g. a pressure transmitter or, a valve or a drive.
CommunicationDTM	1	A Communication DTM is a special category of DTM containing the application software for specific communication hardware.
GatewayDTM	2	A Gateway DTM is a special category of DTM representing a device that connects different fieldbus segments.
CompositeDeviceDTM	3	A Composite DTM is a special category of DTM which is similar to a gateway DTM. A Composite DTM is the parent of a Module DTM and is intended to represent a header station of a modular device.
ModuleDTM	4	A Module DTM is a special kind of DTM which is similar to a device DTM. A Module DTM is a child of a Composite DTM and is intended to represent a single module of a modular device.
BlockTypeManager	5	A Block Type Manager (BTM) is a special category of DTM containing the application software for accessible objects inside a device such as function blocks and resource blocks. It is a child of a Device DTM.

The representation of the DtmCategory DataType in the address space is shown in the following table:

Name	Attribute
NodeId	ns=1;i=3006
NamespaceUri	http://opcfoundation.org/UA/schemas/FDT/1.0/
BrowseName	DtmCategory
IsAbstract	False
SubtypeOf	Enumeration
Categories

The references from the DtmCategory DataType Node are shown in the following table:

Reference	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory